mirror of
https://github.com/postgrespro/pg_probackup.git
synced 2024-12-01 09:51:43 +02:00
2675 lines
90 KiB
Python
2675 lines
90 KiB
Python
import os
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import shutil
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import gzip
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import unittest
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from .helpers.ptrack_helpers import ProbackupTest, ProbackupException, GdbException
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from datetime import datetime, timedelta
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import subprocess
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from sys import exit
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from time import sleep
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from distutils.dir_util import copy_tree
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module_name = 'archive'
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class ArchiveTest(ProbackupTest, unittest.TestCase):
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# @unittest.expectedFailure
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# @unittest.skip("skip")
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def test_pgpro434_1(self):
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"""Description in jira issue PGPRO-434"""
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fname = self.id().split('.')[3]
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backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
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node = self.make_simple_node(
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base_dir=os.path.join(module_name, fname, 'node'),
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set_replication=True,
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initdb_params=['--data-checksums'],
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pg_options={
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'checkpoint_timeout': '30s'})
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self.init_pb(backup_dir)
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self.add_instance(backup_dir, 'node', node)
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self.set_archiving(backup_dir, 'node', node)
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node.slow_start()
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node.safe_psql(
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"postgres",
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"create table t_heap as select 1 as id, md5(i::text) as text, "
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"md5(repeat(i::text,10))::tsvector as tsvector from "
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"generate_series(0,100) i")
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result = node.safe_psql("postgres", "SELECT * FROM t_heap")
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self.backup_node(
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backup_dir, 'node', node)
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node.cleanup()
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self.restore_node(
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backup_dir, 'node', node)
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node.slow_start()
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# Recreate backup catalog
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self.clean_pb(backup_dir)
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self.init_pb(backup_dir)
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self.add_instance(backup_dir, 'node', node)
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# Make backup
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self.backup_node(backup_dir, 'node', node)
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node.cleanup()
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# Restore Database
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self.restore_node(backup_dir, 'node', node)
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node.slow_start()
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self.assertEqual(
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result, node.safe_psql("postgres", "SELECT * FROM t_heap"),
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'data after restore not equal to original data')
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# Clean after yourself
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self.del_test_dir(module_name, fname)
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# @unittest.skip("skip")
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# @unittest.expectedFailure
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def test_pgpro434_2(self):
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"""
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Check that timelines are correct.
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WAITING PGPRO-1053 for --immediate
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"""
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fname = self.id().split('.')[3]
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backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
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node = self.make_simple_node(
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base_dir=os.path.join(module_name, fname, 'node'),
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set_replication=True,
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initdb_params=['--data-checksums'],
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pg_options={
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'checkpoint_timeout': '30s'}
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)
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self.init_pb(backup_dir)
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self.add_instance(backup_dir, 'node', node)
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self.set_archiving(backup_dir, 'node', node)
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node.slow_start()
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# FIRST TIMELINE
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node.safe_psql(
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"postgres",
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"create table t_heap as select 1 as id, md5(i::text) as text, "
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"md5(repeat(i::text,10))::tsvector as tsvector "
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"from generate_series(0,100) i")
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backup_id = self.backup_node(backup_dir, 'node', node)
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node.safe_psql(
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"postgres",
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"insert into t_heap select 100501 as id, md5(i::text) as text, "
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"md5(repeat(i::text,10))::tsvector as tsvector "
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"from generate_series(0,1) i")
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# SECOND TIMELIN
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node.cleanup()
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self.restore_node(
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backup_dir, 'node', node,
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options=['--immediate', '--recovery-target-action=promote'])
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node.slow_start()
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if self.verbose:
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print(node.safe_psql(
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"postgres",
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"select redo_wal_file from pg_control_checkpoint()"))
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self.assertFalse(
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node.execute(
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"postgres",
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"select exists(select 1 "
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"from t_heap where id = 100501)")[0][0],
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'data after restore not equal to original data')
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node.safe_psql(
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"postgres",
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"insert into t_heap select 2 as id, md5(i::text) as text, "
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"md5(repeat(i::text,10))::tsvector as tsvector "
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"from generate_series(100,200) i")
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backup_id = self.backup_node(backup_dir, 'node', node)
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node.safe_psql(
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"postgres",
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"insert into t_heap select 100502 as id, md5(i::text) as text, "
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"md5(repeat(i::text,10))::tsvector as tsvector "
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"from generate_series(0,256) i")
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# THIRD TIMELINE
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node.cleanup()
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self.restore_node(
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backup_dir, 'node', node,
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options=['--immediate', '--recovery-target-action=promote'])
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node.slow_start()
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if self.verbose:
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print(
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node.safe_psql(
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"postgres",
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"select redo_wal_file from pg_control_checkpoint()"))
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node.safe_psql(
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"postgres",
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"insert into t_heap select 3 as id, md5(i::text) as text, "
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"md5(repeat(i::text,10))::tsvector as tsvector "
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"from generate_series(200,300) i")
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backup_id = self.backup_node(backup_dir, 'node', node)
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result = node.safe_psql("postgres", "SELECT * FROM t_heap")
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node.safe_psql(
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"postgres",
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"insert into t_heap select 100503 as id, md5(i::text) as text, "
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"md5(repeat(i::text,10))::tsvector as tsvector "
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"from generate_series(0,256) i")
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# FOURTH TIMELINE
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node.cleanup()
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self.restore_node(
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backup_dir, 'node', node,
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options=['--immediate', '--recovery-target-action=promote'])
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node.slow_start()
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if self.verbose:
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print('Fourth timeline')
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print(node.safe_psql(
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"postgres",
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"select redo_wal_file from pg_control_checkpoint()"))
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# FIFTH TIMELINE
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node.cleanup()
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self.restore_node(
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backup_dir, 'node', node,
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options=['--immediate', '--recovery-target-action=promote'])
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node.slow_start()
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if self.verbose:
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print('Fifth timeline')
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print(node.safe_psql(
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"postgres",
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"select redo_wal_file from pg_control_checkpoint()"))
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# SIXTH TIMELINE
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node.cleanup()
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self.restore_node(
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backup_dir, 'node', node,
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options=['--immediate', '--recovery-target-action=promote'])
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node.slow_start()
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if self.verbose:
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print('Sixth timeline')
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print(node.safe_psql(
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"postgres",
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"select redo_wal_file from pg_control_checkpoint()"))
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self.assertFalse(
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node.execute(
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"postgres",
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"select exists(select 1 from t_heap where id > 100500)")[0][0],
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'data after restore not equal to original data')
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self.assertEqual(
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result,
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node.safe_psql(
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"postgres",
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"SELECT * FROM t_heap"),
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'data after restore not equal to original data')
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# Clean after yourself
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self.del_test_dir(module_name, fname)
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# @unittest.skip("skip")
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def test_pgpro434_3(self):
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"""
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Check pg_stop_backup_timeout, needed backup_timeout
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Fixed in commit d84d79668b0c139 and assert fixed by ptrack 1.7
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"""
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fname = self.id().split('.')[3]
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backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
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node = self.make_simple_node(
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base_dir=os.path.join(module_name, fname, 'node'),
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set_replication=True,
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initdb_params=['--data-checksums'])
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self.init_pb(backup_dir)
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self.add_instance(backup_dir, 'node', node)
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self.set_archiving(backup_dir, 'node', node)
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node.slow_start()
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gdb = self.backup_node(
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backup_dir, 'node', node,
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options=[
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"--archive-timeout=60",
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"--log-level-file=LOG"],
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gdb=True)
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gdb.set_breakpoint('pg_stop_backup')
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gdb.run_until_break()
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self.set_auto_conf(node, {'archive_command': 'exit 1'})
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node.reload()
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gdb.continue_execution_until_exit()
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sleep(1)
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log_file = os.path.join(backup_dir, 'log', 'pg_probackup.log')
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with open(log_file, 'r') as f:
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log_content = f.read()
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# in PG =< 9.6 pg_stop_backup always wait
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if self.get_version(node) < 100000:
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self.assertIn(
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"ERROR: pg_stop_backup doesn't answer in 60 seconds, cancel it",
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log_content)
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else:
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self.assertIn(
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"ERROR: WAL segment 000000010000000000000003 could not be archived in 60 seconds",
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log_content)
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log_file = os.path.join(node.logs_dir, 'postgresql.log')
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with open(log_file, 'r') as f:
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log_content = f.read()
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self.assertNotIn(
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'FailedAssertion',
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log_content,
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'PostgreSQL crashed because of a failed assert')
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# Clean after yourself
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self.del_test_dir(module_name, fname)
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# @unittest.skip("skip")
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def test_pgpro434_4(self):
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"""
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Check pg_stop_backup_timeout, libpq-timeout requested.
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Fixed in commit d84d79668b0c139 and assert fixed by ptrack 1.7
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"""
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fname = self.id().split('.')[3]
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backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
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node = self.make_simple_node(
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base_dir=os.path.join(module_name, fname, 'node'),
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set_replication=True,
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initdb_params=['--data-checksums'])
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self.init_pb(backup_dir)
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self.add_instance(backup_dir, 'node', node)
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self.set_archiving(backup_dir, 'node', node)
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node.slow_start()
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gdb = self.backup_node(
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backup_dir, 'node', node,
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options=[
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"--archive-timeout=60",
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"--log-level-file=info"],
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gdb=True)
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gdb.set_breakpoint('pg_stop_backup')
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gdb.run_until_break()
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self.set_auto_conf(node, {'archive_command': "'exit 1'"})
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node.reload()
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os.environ["PGAPPNAME"] = "foo"
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pid = node.safe_psql(
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"postgres",
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"SELECT pid "
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"FROM pg_stat_activity "
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"WHERE application_name = 'pg_probackup'").decode('utf-8').rstrip()
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os.environ["PGAPPNAME"] = "pg_probackup"
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postgres_gdb = self.gdb_attach(pid)
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postgres_gdb.set_breakpoint('do_pg_stop_backup')
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postgres_gdb.continue_execution_until_running()
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gdb.continue_execution_until_exit()
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# gdb._execute('detach')
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log_file = os.path.join(backup_dir, 'log', 'pg_probackup.log')
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with open(log_file, 'r') as f:
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log_content = f.read()
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self.assertIn(
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"ERROR: pg_stop_backup doesn't answer in 60 seconds, cancel it",
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log_content)
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log_file = os.path.join(node.logs_dir, 'postgresql.log')
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with open(log_file, 'r') as f:
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log_content = f.read()
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self.assertNotIn(
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'FailedAssertion',
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log_content,
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'PostgreSQL crashed because of a failed assert')
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# Clean after yourself
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self.del_test_dir(module_name, fname)
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# @unittest.skip("skip")
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def test_archive_push_file_exists(self):
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"""Archive-push if file exists"""
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fname = self.id().split('.')[3]
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backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
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node = self.make_simple_node(
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base_dir=os.path.join(module_name, fname, 'node'),
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set_replication=True,
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initdb_params=['--data-checksums'],
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pg_options={
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'checkpoint_timeout': '30s'})
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self.init_pb(backup_dir)
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self.add_instance(backup_dir, 'node', node)
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self.set_archiving(backup_dir, 'node', node)
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wals_dir = os.path.join(backup_dir, 'wal', 'node')
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if self.archive_compress:
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filename = '000000010000000000000001.gz'
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file = os.path.join(wals_dir, filename)
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else:
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filename = '000000010000000000000001'
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file = os.path.join(wals_dir, filename)
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with open(file, 'a+b') as f:
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f.write(b"blablablaadssaaaaaaaaaaaaaaa")
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f.flush()
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f.close()
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node.slow_start()
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node.safe_psql(
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"postgres",
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"create table t_heap as select i as id, md5(i::text) as text, "
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"md5(repeat(i::text,10))::tsvector as tsvector "
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"from generate_series(0,100500) i")
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log_file = os.path.join(node.logs_dir, 'postgresql.log')
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self.switch_wal_segment(node)
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sleep(1)
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with open(log_file, 'r') as f:
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log_content = f.read()
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self.assertIn(
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'LOG: archive command failed with exit code 1',
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log_content)
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self.assertIn(
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'DETAIL: The failed archive command was:',
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log_content)
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self.assertIn(
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'pg_probackup archive-push WAL file',
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log_content)
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self.assertIn(
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'WAL file already exists in archive with different checksum',
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log_content)
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self.assertNotIn(
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'pg_probackup archive-push completed successfully', log_content)
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if self.get_version(node) < 100000:
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wal_src = os.path.join(
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node.data_dir, 'pg_xlog', '000000010000000000000001')
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else:
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wal_src = os.path.join(
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node.data_dir, 'pg_wal', '000000010000000000000001')
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if self.archive_compress:
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with open(wal_src, 'rb') as f_in, gzip.open(
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file, 'wb', compresslevel=1) as f_out:
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shutil.copyfileobj(f_in, f_out)
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else:
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shutil.copyfile(wal_src, file)
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self.switch_wal_segment(node)
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sleep(5)
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with open(log_file, 'r') as f:
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log_content = f.read()
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self.assertIn(
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'pg_probackup archive-push completed successfully',
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log_content)
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# Clean after yourself
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self.del_test_dir(module_name, fname)
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# @unittest.skip("skip")
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def test_archive_push_file_exists_overwrite(self):
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"""Archive-push if file exists"""
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fname = self.id().split('.')[3]
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backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
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node = self.make_simple_node(
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base_dir=os.path.join(module_name, fname, 'node'),
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set_replication=True,
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initdb_params=['--data-checksums'],
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pg_options={'checkpoint_timeout': '30s'})
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self.init_pb(backup_dir)
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self.add_instance(backup_dir, 'node', node)
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self.set_archiving(backup_dir, 'node', node)
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wals_dir = os.path.join(backup_dir, 'wal', 'node')
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if self.archive_compress:
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filename = '000000010000000000000001.gz'
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file = os.path.join(wals_dir, filename)
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else:
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filename = '000000010000000000000001'
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file = os.path.join(wals_dir, filename)
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with open(file, 'a+b') as f:
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f.write(b"blablablaadssaaaaaaaaaaaaaaa")
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f.flush()
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f.close()
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node.slow_start()
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node.safe_psql(
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"postgres",
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"create table t_heap as select i as id, md5(i::text) as text, "
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"md5(repeat(i::text,10))::tsvector as tsvector "
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"from generate_series(0,100500) i")
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log_file = os.path.join(node.logs_dir, 'postgresql.log')
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self.switch_wal_segment(node)
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sleep(1)
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with open(log_file, 'r') as f:
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log_content = f.read()
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self.assertIn(
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'LOG: archive command failed with exit code 1', log_content)
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self.assertIn(
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'DETAIL: The failed archive command was:', log_content)
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self.assertIn(
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'pg_probackup archive-push WAL file', log_content)
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self.assertNotIn(
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'WAL file already exists in archive with '
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'different checksum, overwriting', log_content)
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self.assertIn(
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'WAL file already exists in archive with '
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'different checksum', log_content)
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self.assertNotIn(
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'pg_probackup archive-push completed successfully', log_content)
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self.set_archiving(backup_dir, 'node', node, overwrite=True)
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node.reload()
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self.switch_wal_segment(node)
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sleep(5)
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with open(log_file, 'r') as f:
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log_content = f.read()
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self.assertTrue(
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'pg_probackup archive-push completed successfully' in log_content,
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|
'Expecting messages about successfull execution archive_command')
|
|
|
|
self.assertIn(
|
|
'WAL file already exists in archive with '
|
|
'different checksum, overwriting', log_content)
|
|
|
|
# Clean after yourself
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.skip("skip")
|
|
def test_archive_push_partial_file_exists(self):
|
|
"""Archive-push if stale '.part' file exists"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'])
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
self.set_archiving(
|
|
backup_dir, 'node', node,
|
|
log_level='verbose', archive_timeout=60)
|
|
|
|
node.slow_start()
|
|
|
|
# this backup is needed only for validation to xid
|
|
self.backup_node(backup_dir, 'node', node)
|
|
|
|
node.safe_psql(
|
|
"postgres",
|
|
"create table t1(a int)")
|
|
|
|
xid = node.safe_psql(
|
|
"postgres",
|
|
"INSERT INTO t1 VALUES (1) RETURNING (xmin)").decode('utf-8').rstrip()
|
|
|
|
if self.get_version(node) < 100000:
|
|
filename_orig = node.safe_psql(
|
|
"postgres",
|
|
"SELECT file_name "
|
|
"FROM pg_xlogfile_name_offset(pg_current_xlog_location());").rstrip()
|
|
else:
|
|
filename_orig = node.safe_psql(
|
|
"postgres",
|
|
"SELECT file_name "
|
|
"FROM pg_walfile_name_offset(pg_current_wal_flush_lsn());").rstrip()
|
|
|
|
filename_orig = filename_orig.decode('utf-8')
|
|
|
|
# form up path to next .part WAL segment
|
|
wals_dir = os.path.join(backup_dir, 'wal', 'node')
|
|
if self.archive_compress:
|
|
filename = filename_orig + '.gz' + '.part'
|
|
file = os.path.join(wals_dir, filename)
|
|
else:
|
|
filename = filename_orig + '.part'
|
|
file = os.path.join(wals_dir, filename)
|
|
|
|
# emulate stale .part file
|
|
with open(file, 'a+b') as f:
|
|
f.write(b"blahblah")
|
|
f.flush()
|
|
f.close()
|
|
|
|
self.switch_wal_segment(node)
|
|
sleep(70)
|
|
|
|
# check that segment is archived
|
|
if self.archive_compress:
|
|
filename_orig = filename_orig + '.gz'
|
|
|
|
file = os.path.join(wals_dir, filename_orig)
|
|
self.assertTrue(os.path.isfile(file))
|
|
|
|
# successful validate means that archive-push reused stale wal segment
|
|
self.validate_pb(
|
|
backup_dir, 'node',
|
|
options=['--recovery-target-xid={0}'.format(xid)])
|
|
|
|
log_file = os.path.join(node.logs_dir, 'postgresql.log')
|
|
with open(log_file, 'r') as f:
|
|
log_content = f.read()
|
|
|
|
self.assertIn(
|
|
'Reusing stale temp WAL file',
|
|
log_content)
|
|
|
|
# Clean after yourself
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.skip("skip")
|
|
def test_archive_push_part_file_exists_not_stale(self):
|
|
"""Archive-push if .part file exists and it is not stale"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'])
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
self.set_archiving(backup_dir, 'node', node, archive_timeout=60)
|
|
|
|
node.slow_start()
|
|
|
|
node.safe_psql(
|
|
"postgres",
|
|
"create table t1()")
|
|
self.switch_wal_segment(node)
|
|
|
|
node.safe_psql(
|
|
"postgres",
|
|
"create table t2()")
|
|
|
|
if self.get_version(node) < 100000:
|
|
filename_orig = node.safe_psql(
|
|
"postgres",
|
|
"SELECT file_name "
|
|
"FROM pg_xlogfile_name_offset(pg_current_xlog_location());").rstrip()
|
|
else:
|
|
filename_orig = node.safe_psql(
|
|
"postgres",
|
|
"SELECT file_name "
|
|
"FROM pg_walfile_name_offset(pg_current_wal_flush_lsn());").rstrip()
|
|
|
|
filename_orig = filename_orig.decode('utf-8')
|
|
|
|
# form up path to next .part WAL segment
|
|
wals_dir = os.path.join(backup_dir, 'wal', 'node')
|
|
if self.archive_compress:
|
|
filename = filename_orig + '.gz' + '.part'
|
|
file = os.path.join(wals_dir, filename)
|
|
else:
|
|
filename = filename_orig + '.part'
|
|
file = os.path.join(wals_dir, filename)
|
|
|
|
with open(file, 'a+b') as f:
|
|
f.write(b"blahblah")
|
|
f.flush()
|
|
f.close()
|
|
|
|
self.switch_wal_segment(node)
|
|
sleep(30)
|
|
|
|
with open(file, 'a+b') as f:
|
|
f.write(b"blahblahblahblah")
|
|
f.flush()
|
|
f.close()
|
|
|
|
sleep(40)
|
|
|
|
# check that segment is NOT archived
|
|
if self.archive_compress:
|
|
filename_orig = filename_orig + '.gz'
|
|
|
|
file = os.path.join(wals_dir, filename_orig)
|
|
|
|
self.assertFalse(os.path.isfile(file))
|
|
|
|
# log_file = os.path.join(node.logs_dir, 'postgresql.log')
|
|
# with open(log_file, 'r') as f:
|
|
# log_content = f.read()
|
|
# self.assertIn(
|
|
# 'is not stale',
|
|
# log_content)
|
|
|
|
# Clean after yourself
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.expectedFailure
|
|
# @unittest.skip("skip")
|
|
def test_replica_archive(self):
|
|
"""
|
|
make node without archiving, take stream backup and
|
|
turn it into replica, set replica with archiving,
|
|
make archive backup from replica
|
|
"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
master = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'master'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={
|
|
'archive_timeout': '10s',
|
|
'checkpoint_timeout': '30s',
|
|
'max_wal_size': '32MB'})
|
|
|
|
self.init_pb(backup_dir)
|
|
# ADD INSTANCE 'MASTER'
|
|
self.add_instance(backup_dir, 'master', master)
|
|
master.slow_start()
|
|
|
|
replica = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'replica'))
|
|
replica.cleanup()
|
|
|
|
master.psql(
|
|
"postgres",
|
|
"create table t_heap as select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(0,2560) i")
|
|
|
|
self.backup_node(backup_dir, 'master', master, options=['--stream'])
|
|
before = master.safe_psql("postgres", "SELECT * FROM t_heap")
|
|
|
|
# Settings for Replica
|
|
self.restore_node(backup_dir, 'master', replica)
|
|
self.set_replica(master, replica, synchronous=True)
|
|
|
|
self.add_instance(backup_dir, 'replica', replica)
|
|
self.set_archiving(backup_dir, 'replica', replica, replica=True)
|
|
replica.slow_start(replica=True)
|
|
|
|
# Check data correctness on replica
|
|
after = replica.safe_psql("postgres", "SELECT * FROM t_heap")
|
|
self.assertEqual(before, after)
|
|
|
|
# Change data on master, take FULL backup from replica,
|
|
# restore taken backup and check that restored data equal
|
|
# to original data
|
|
master.psql(
|
|
"postgres",
|
|
"insert into t_heap as select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(256,512) i")
|
|
before = master.safe_psql("postgres", "SELECT * FROM t_heap")
|
|
|
|
backup_id = self.backup_node(
|
|
backup_dir, 'replica', replica,
|
|
options=[
|
|
'--archive-timeout=30',
|
|
'--master-host=localhost',
|
|
'--master-db=postgres',
|
|
'--master-port={0}'.format(master.port),
|
|
'--stream'])
|
|
|
|
self.validate_pb(backup_dir, 'replica')
|
|
self.assertEqual(
|
|
'OK', self.show_pb(backup_dir, 'replica', backup_id)['status'])
|
|
|
|
# RESTORE FULL BACKUP TAKEN FROM replica
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'))
|
|
node.cleanup()
|
|
self.restore_node(backup_dir, 'replica', data_dir=node.data_dir)
|
|
|
|
self.set_auto_conf(node, {'port': node.port})
|
|
node.slow_start()
|
|
# CHECK DATA CORRECTNESS
|
|
after = node.safe_psql("postgres", "SELECT * FROM t_heap")
|
|
self.assertEqual(before, after)
|
|
|
|
# Change data on master, make PAGE backup from replica,
|
|
# restore taken backup and check that restored data equal
|
|
# to original data
|
|
master.psql(
|
|
"postgres",
|
|
"insert into t_heap as select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(512,80680) i")
|
|
|
|
before = master.safe_psql("postgres", "SELECT * FROM t_heap")
|
|
|
|
self.wait_until_replica_catch_with_master(master, replica)
|
|
|
|
backup_id = self.backup_node(
|
|
backup_dir, 'replica',
|
|
replica, backup_type='page',
|
|
options=[
|
|
'--archive-timeout=60',
|
|
'--master-db=postgres',
|
|
'--master-host=localhost',
|
|
'--master-port={0}'.format(master.port),
|
|
'--stream'])
|
|
|
|
self.validate_pb(backup_dir, 'replica')
|
|
self.assertEqual(
|
|
'OK', self.show_pb(backup_dir, 'replica', backup_id)['status'])
|
|
|
|
# RESTORE PAGE BACKUP TAKEN FROM replica
|
|
node.cleanup()
|
|
self.restore_node(
|
|
backup_dir, 'replica', data_dir=node.data_dir, backup_id=backup_id)
|
|
|
|
self.set_auto_conf(node, {'port': node.port})
|
|
|
|
node.slow_start()
|
|
# CHECK DATA CORRECTNESS
|
|
after = node.safe_psql("postgres", "SELECT * FROM t_heap")
|
|
self.assertEqual(before, after)
|
|
|
|
# Clean after yourself
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.expectedFailure
|
|
# @unittest.skip("skip")
|
|
def test_master_and_replica_parallel_archiving(self):
|
|
"""
|
|
make node 'master 'with archiving,
|
|
take archive backup and turn it into replica,
|
|
set replica with archiving, make archive backup from replica,
|
|
make archive backup from master
|
|
"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
master = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'master'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={
|
|
'archive_timeout': '10s'}
|
|
)
|
|
replica = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'replica'))
|
|
replica.cleanup()
|
|
|
|
self.init_pb(backup_dir)
|
|
# ADD INSTANCE 'MASTER'
|
|
self.add_instance(backup_dir, 'master', master)
|
|
self.set_archiving(backup_dir, 'master', master)
|
|
master.slow_start()
|
|
|
|
master.psql(
|
|
"postgres",
|
|
"create table t_heap as select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(0,10000) i")
|
|
|
|
# TAKE FULL ARCHIVE BACKUP FROM MASTER
|
|
self.backup_node(backup_dir, 'master', master)
|
|
# GET LOGICAL CONTENT FROM MASTER
|
|
before = master.safe_psql("postgres", "SELECT * FROM t_heap")
|
|
# GET PHYSICAL CONTENT FROM MASTER
|
|
pgdata_master = self.pgdata_content(master.data_dir)
|
|
|
|
# Settings for Replica
|
|
self.restore_node(backup_dir, 'master', replica)
|
|
# CHECK PHYSICAL CORRECTNESS on REPLICA
|
|
pgdata_replica = self.pgdata_content(replica.data_dir)
|
|
self.compare_pgdata(pgdata_master, pgdata_replica)
|
|
|
|
self.set_replica(master, replica)
|
|
# ADD INSTANCE REPLICA
|
|
self.add_instance(backup_dir, 'replica', replica)
|
|
# SET ARCHIVING FOR REPLICA
|
|
self.set_archiving(backup_dir, 'replica', replica, replica=True)
|
|
replica.slow_start(replica=True)
|
|
|
|
# CHECK LOGICAL CORRECTNESS on REPLICA
|
|
after = replica.safe_psql("postgres", "SELECT * FROM t_heap")
|
|
self.assertEqual(before, after)
|
|
|
|
master.psql(
|
|
"postgres",
|
|
"insert into t_heap select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(0, 60000) i")
|
|
|
|
backup_id = self.backup_node(
|
|
backup_dir, 'replica', replica,
|
|
options=[
|
|
'--archive-timeout=30',
|
|
'--master-host=localhost',
|
|
'--master-db=postgres',
|
|
'--master-port={0}'.format(master.port),
|
|
'--stream'])
|
|
|
|
self.validate_pb(backup_dir, 'replica')
|
|
self.assertEqual(
|
|
'OK', self.show_pb(backup_dir, 'replica', backup_id)['status'])
|
|
|
|
# TAKE FULL ARCHIVE BACKUP FROM MASTER
|
|
backup_id = self.backup_node(backup_dir, 'master', master)
|
|
self.validate_pb(backup_dir, 'master')
|
|
self.assertEqual(
|
|
'OK', self.show_pb(backup_dir, 'master', backup_id)['status'])
|
|
|
|
# Clean after yourself
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.expectedFailure
|
|
# @unittest.skip("skip")
|
|
def test_basic_master_and_replica_concurrent_archiving(self):
|
|
"""
|
|
make node 'master 'with archiving,
|
|
take archive backup and turn it into replica,
|
|
set replica with archiving,
|
|
make sure that archiving on both node is working.
|
|
"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
master = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'master'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={
|
|
'checkpoint_timeout': '30s',
|
|
'autovacuum': 'off',
|
|
'archive_timeout': '10s'})
|
|
|
|
replica = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'replica'))
|
|
replica.cleanup()
|
|
|
|
self.init_pb(backup_dir)
|
|
# ADD INSTANCE 'MASTER'
|
|
self.add_instance(backup_dir, 'master', master)
|
|
self.set_archiving(backup_dir, 'master', master)
|
|
master.slow_start()
|
|
|
|
master.psql(
|
|
"postgres",
|
|
"create table t_heap as select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(0,10000) i")
|
|
|
|
master.pgbench_init(scale=5)
|
|
|
|
# TAKE FULL ARCHIVE BACKUP FROM MASTER
|
|
self.backup_node(backup_dir, 'master', master)
|
|
# GET LOGICAL CONTENT FROM MASTER
|
|
before = master.safe_psql("postgres", "SELECT * FROM t_heap")
|
|
# GET PHYSICAL CONTENT FROM MASTER
|
|
pgdata_master = self.pgdata_content(master.data_dir)
|
|
|
|
# Settings for Replica
|
|
self.restore_node(
|
|
backup_dir, 'master', replica)
|
|
# CHECK PHYSICAL CORRECTNESS on REPLICA
|
|
pgdata_replica = self.pgdata_content(replica.data_dir)
|
|
self.compare_pgdata(pgdata_master, pgdata_replica)
|
|
|
|
self.set_replica(master, replica, synchronous=False)
|
|
# ADD INSTANCE REPLICA
|
|
# self.add_instance(backup_dir, 'replica', replica)
|
|
# SET ARCHIVING FOR REPLICA
|
|
self.set_archiving(backup_dir, 'master', replica, replica=True)
|
|
replica.slow_start(replica=True)
|
|
|
|
# CHECK LOGICAL CORRECTNESS on REPLICA
|
|
after = replica.safe_psql("postgres", "SELECT * FROM t_heap")
|
|
self.assertEqual(before, after)
|
|
|
|
master.psql(
|
|
"postgres",
|
|
"insert into t_heap as select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(0,10000) i")
|
|
|
|
# TAKE FULL ARCHIVE BACKUP FROM REPLICA
|
|
backup_id = self.backup_node(backup_dir, 'master', replica)
|
|
|
|
self.validate_pb(backup_dir, 'master')
|
|
self.assertEqual(
|
|
'OK', self.show_pb(backup_dir, 'master', backup_id)['status'])
|
|
|
|
# TAKE FULL ARCHIVE BACKUP FROM MASTER
|
|
backup_id = self.backup_node(backup_dir, 'master', master)
|
|
self.validate_pb(backup_dir, 'master')
|
|
self.assertEqual(
|
|
'OK', self.show_pb(backup_dir, 'master', backup_id)['status'])
|
|
|
|
master.pgbench_init(scale=10)
|
|
|
|
sleep(10)
|
|
|
|
replica.promote()
|
|
|
|
master.pgbench_init(scale=10)
|
|
replica.pgbench_init(scale=10)
|
|
|
|
self.backup_node(backup_dir, 'master', master)
|
|
self.backup_node(backup_dir, 'master', replica)
|
|
|
|
# Clean after yourself
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
|
|
# @unittest.expectedFailure
|
|
# @unittest.skip("skip")
|
|
def test_concurrent_archiving(self):
|
|
"""
|
|
Concurrent archiving from master, replica and cascade replica
|
|
https://github.com/postgrespro/pg_probackup/issues/327
|
|
|
|
For PG >= 11 it is expected to pass this test
|
|
"""
|
|
|
|
if self.pg_config_version < self.version_to_num('11.0'):
|
|
return unittest.skip('You need PostgreSQL >= 11 for this test')
|
|
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
master = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'master'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={'autovacuum': 'off'})
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', master)
|
|
self.set_archiving(backup_dir, 'node', master, replica=True)
|
|
master.slow_start()
|
|
|
|
master.pgbench_init(scale=10)
|
|
|
|
# TAKE FULL ARCHIVE BACKUP FROM MASTER
|
|
self.backup_node(backup_dir, 'node', master)
|
|
|
|
# Settings for Replica
|
|
replica = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'replica'))
|
|
replica.cleanup()
|
|
self.restore_node(backup_dir, 'node', replica)
|
|
|
|
self.set_replica(master, replica, synchronous=True)
|
|
self.set_archiving(backup_dir, 'node', replica, replica=True)
|
|
self.set_auto_conf(replica, {'port': replica.port})
|
|
replica.slow_start(replica=True)
|
|
|
|
# create cascade replicas
|
|
replica1 = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'replica1'))
|
|
replica1.cleanup()
|
|
|
|
# Settings for casaced replica
|
|
self.restore_node(backup_dir, 'node', replica1)
|
|
self.set_replica(replica, replica1, synchronous=False)
|
|
self.set_auto_conf(replica1, {'port': replica1.port})
|
|
replica1.slow_start(replica=True)
|
|
|
|
# Take full backup from master
|
|
self.backup_node(backup_dir, 'node', master)
|
|
|
|
pgbench = master.pgbench(
|
|
stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
|
|
options=['-T', '30', '-c', '1'])
|
|
|
|
# Take several incremental backups from master
|
|
self.backup_node(backup_dir, 'node', master, backup_type='page', options=['--no-validate'])
|
|
|
|
self.backup_node(backup_dir, 'node', master, backup_type='page', options=['--no-validate'])
|
|
|
|
pgbench.wait()
|
|
pgbench.stdout.close()
|
|
|
|
with open(os.path.join(master.logs_dir, 'postgresql.log'), 'r') as f:
|
|
log_content = f.read()
|
|
self.assertNotIn('different checksum', log_content)
|
|
|
|
with open(os.path.join(replica.logs_dir, 'postgresql.log'), 'r') as f:
|
|
log_content = f.read()
|
|
self.assertNotIn('different checksum', log_content)
|
|
|
|
with open(os.path.join(replica1.logs_dir, 'postgresql.log'), 'r') as f:
|
|
log_content = f.read()
|
|
self.assertNotIn('different checksum', log_content)
|
|
|
|
# Clean after yourself
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.expectedFailure
|
|
# @unittest.skip("skip")
|
|
def test_archive_pg_receivexlog(self):
|
|
"""Test backup with pg_receivexlog wal delivary method"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={
|
|
'checkpoint_timeout': '30s'})
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
node.slow_start()
|
|
if self.get_version(node) < 100000:
|
|
pg_receivexlog_path = self.get_bin_path('pg_receivexlog')
|
|
else:
|
|
pg_receivexlog_path = self.get_bin_path('pg_receivewal')
|
|
|
|
pg_receivexlog = self.run_binary(
|
|
[
|
|
pg_receivexlog_path, '-p', str(node.port), '--synchronous',
|
|
'-D', os.path.join(backup_dir, 'wal', 'node')
|
|
], asynchronous=True)
|
|
|
|
if pg_receivexlog.returncode:
|
|
self.assertFalse(
|
|
True,
|
|
'Failed to start pg_receivexlog: {0}'.format(
|
|
pg_receivexlog.communicate()[1]))
|
|
|
|
node.safe_psql(
|
|
"postgres",
|
|
"create table t_heap as select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(0,10000) i")
|
|
|
|
self.backup_node(backup_dir, 'node', node)
|
|
|
|
# PAGE
|
|
node.safe_psql(
|
|
"postgres",
|
|
"insert into t_heap select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(10000,20000) i")
|
|
|
|
self.backup_node(
|
|
backup_dir,
|
|
'node',
|
|
node,
|
|
backup_type='page'
|
|
)
|
|
result = node.safe_psql("postgres", "SELECT * FROM t_heap")
|
|
self.validate_pb(backup_dir)
|
|
|
|
# Check data correctness
|
|
node.cleanup()
|
|
self.restore_node(backup_dir, 'node', node)
|
|
node.slow_start()
|
|
|
|
self.assertEqual(
|
|
result,
|
|
node.safe_psql(
|
|
"postgres", "SELECT * FROM t_heap"
|
|
),
|
|
'data after restore not equal to original data')
|
|
|
|
# Clean after yourself
|
|
pg_receivexlog.kill()
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.expectedFailure
|
|
# @unittest.skip("skip")
|
|
def test_archive_pg_receivexlog_compression_pg10(self):
|
|
"""Test backup with pg_receivewal compressed wal delivary method"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={
|
|
'checkpoint_timeout': '30s'}
|
|
)
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
node.slow_start()
|
|
if self.get_version(node) < self.version_to_num('10.0'):
|
|
return unittest.skip('You need PostgreSQL >= 10 for this test')
|
|
else:
|
|
pg_receivexlog_path = self.get_bin_path('pg_receivewal')
|
|
|
|
pg_receivexlog = self.run_binary(
|
|
[
|
|
pg_receivexlog_path, '-p', str(node.port), '--synchronous',
|
|
'-Z', '9', '-D', os.path.join(backup_dir, 'wal', 'node')
|
|
], asynchronous=True)
|
|
|
|
if pg_receivexlog.returncode:
|
|
self.assertFalse(
|
|
True,
|
|
'Failed to start pg_receivexlog: {0}'.format(
|
|
pg_receivexlog.communicate()[1]))
|
|
|
|
node.safe_psql(
|
|
"postgres",
|
|
"create table t_heap as select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(0,10000) i")
|
|
|
|
self.backup_node(backup_dir, 'node', node)
|
|
|
|
# PAGE
|
|
node.safe_psql(
|
|
"postgres",
|
|
"insert into t_heap select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(10000,20000) i")
|
|
|
|
self.backup_node(
|
|
backup_dir, 'node', node,
|
|
backup_type='page'
|
|
)
|
|
result = node.safe_psql("postgres", "SELECT * FROM t_heap")
|
|
self.validate_pb(backup_dir)
|
|
|
|
# Check data correctness
|
|
node.cleanup()
|
|
self.restore_node(backup_dir, 'node', node)
|
|
node.slow_start()
|
|
|
|
self.assertEqual(
|
|
result, node.safe_psql("postgres", "SELECT * FROM t_heap"),
|
|
'data after restore not equal to original data')
|
|
|
|
# Clean after yourself
|
|
pg_receivexlog.kill()
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.expectedFailure
|
|
# @unittest.skip("skip")
|
|
def test_archive_catalog(self):
|
|
"""
|
|
ARCHIVE replica:
|
|
|
|
t6 |-----------------------
|
|
t5 | |-------
|
|
| |
|
|
t4 | |--------------
|
|
| |
|
|
t3 | |--B1--|/|--B2-|/|-B3---
|
|
| |
|
|
t2 |--A1--------A2---
|
|
t1 ---------Y1--Y2--
|
|
|
|
ARCHIVE master:
|
|
t1 -Z1--Z2---
|
|
"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
master = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'master'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={
|
|
'archive_timeout': '30s',
|
|
'checkpoint_timeout': '30s',
|
|
'autovacuum': 'off'})
|
|
|
|
if self.get_version(master) < self.version_to_num('9.6.0'):
|
|
self.del_test_dir(module_name, fname)
|
|
return unittest.skip(
|
|
'Skipped because backup from replica is not supported in PG 9.5')
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'master', master)
|
|
self.set_archiving(backup_dir, 'master', master)
|
|
|
|
master.slow_start()
|
|
|
|
# FULL
|
|
master.safe_psql(
|
|
"postgres",
|
|
"create table t_heap as select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(0,10000) i")
|
|
|
|
self.backup_node(backup_dir, 'master', master)
|
|
|
|
# PAGE
|
|
master.safe_psql(
|
|
"postgres",
|
|
"insert into t_heap select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(10000,20000) i")
|
|
|
|
self.backup_node(
|
|
backup_dir, 'master', master, backup_type='page')
|
|
|
|
replica = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'replica'))
|
|
replica.cleanup()
|
|
self.restore_node(backup_dir, 'master', replica)
|
|
self.set_replica(master, replica)
|
|
|
|
self.add_instance(backup_dir, 'replica', replica)
|
|
self.set_archiving(backup_dir, 'replica', replica, replica=True)
|
|
|
|
copy_tree(
|
|
os.path.join(backup_dir, 'wal', 'master'),
|
|
os.path.join(backup_dir, 'wal', 'replica'))
|
|
|
|
replica.slow_start(replica=True)
|
|
|
|
# FULL backup replica
|
|
Y1 = self.backup_node(
|
|
backup_dir, 'replica', replica,
|
|
options=['--stream', '--archive-timeout=60s'])
|
|
|
|
master.pgbench_init(scale=5)
|
|
|
|
# PAGE backup replica
|
|
Y2 = self.backup_node(
|
|
backup_dir, 'replica', replica,
|
|
backup_type='page', options=['--stream', '--archive-timeout=60s'])
|
|
|
|
# create timeline t2
|
|
replica.promote()
|
|
|
|
# FULL backup replica
|
|
A1 = self.backup_node(
|
|
backup_dir, 'replica', replica)
|
|
|
|
replica.pgbench_init(scale=5)
|
|
|
|
replica.safe_psql(
|
|
'postgres',
|
|
"CREATE TABLE t1 (a text)")
|
|
|
|
target_xid = None
|
|
with replica.connect("postgres") as con:
|
|
res = con.execute(
|
|
"INSERT INTO t1 VALUES ('inserted') RETURNING (xmin)")
|
|
con.commit()
|
|
target_xid = res[0][0]
|
|
|
|
# DELTA backup replica
|
|
A2 = self.backup_node(
|
|
backup_dir, 'replica', replica, backup_type='delta')
|
|
|
|
# create timeline t3
|
|
replica.cleanup()
|
|
self.restore_node(
|
|
backup_dir, 'replica', replica,
|
|
options=[
|
|
'--recovery-target-xid={0}'.format(target_xid),
|
|
'--recovery-target-timeline=2',
|
|
'--recovery-target-action=promote'])
|
|
|
|
replica.slow_start()
|
|
|
|
B1 = self.backup_node(
|
|
backup_dir, 'replica', replica)
|
|
|
|
replica.pgbench_init(scale=2)
|
|
|
|
B2 = self.backup_node(
|
|
backup_dir, 'replica', replica, backup_type='page')
|
|
|
|
replica.pgbench_init(scale=2)
|
|
|
|
target_xid = None
|
|
with replica.connect("postgres") as con:
|
|
res = con.execute(
|
|
"INSERT INTO t1 VALUES ('inserted') RETURNING (xmin)")
|
|
con.commit()
|
|
target_xid = res[0][0]
|
|
|
|
B3 = self.backup_node(
|
|
backup_dir, 'replica', replica, backup_type='page')
|
|
|
|
replica.pgbench_init(scale=2)
|
|
|
|
# create timeline t4
|
|
replica.cleanup()
|
|
self.restore_node(
|
|
backup_dir, 'replica', replica,
|
|
options=[
|
|
'--recovery-target-xid={0}'.format(target_xid),
|
|
'--recovery-target-timeline=3',
|
|
'--recovery-target-action=promote'])
|
|
|
|
replica.slow_start()
|
|
|
|
replica.safe_psql(
|
|
'postgres',
|
|
'CREATE TABLE '
|
|
't2 as select i, '
|
|
'repeat(md5(i::text),5006056) as fat_attr '
|
|
'from generate_series(0,6) i')
|
|
|
|
target_xid = None
|
|
with replica.connect("postgres") as con:
|
|
res = con.execute(
|
|
"INSERT INTO t1 VALUES ('inserted') RETURNING (xmin)")
|
|
con.commit()
|
|
target_xid = res[0][0]
|
|
|
|
replica.safe_psql(
|
|
'postgres',
|
|
'CREATE TABLE '
|
|
't3 as select i, '
|
|
'repeat(md5(i::text),5006056) as fat_attr '
|
|
'from generate_series(0,10) i')
|
|
|
|
# create timeline t5
|
|
replica.cleanup()
|
|
self.restore_node(
|
|
backup_dir, 'replica', replica,
|
|
options=[
|
|
'--recovery-target-xid={0}'.format(target_xid),
|
|
'--recovery-target-timeline=4',
|
|
'--recovery-target-action=promote'])
|
|
|
|
replica.slow_start()
|
|
|
|
replica.safe_psql(
|
|
'postgres',
|
|
'CREATE TABLE '
|
|
't4 as select i, '
|
|
'repeat(md5(i::text),5006056) as fat_attr '
|
|
'from generate_series(0,6) i')
|
|
|
|
# create timeline t6
|
|
replica.cleanup()
|
|
|
|
self.restore_node(
|
|
backup_dir, 'replica', replica, backup_id=A1,
|
|
options=[
|
|
'--recovery-target=immediate',
|
|
'--recovery-target-action=promote'])
|
|
replica.slow_start()
|
|
|
|
replica.pgbench_init(scale=2)
|
|
|
|
sleep(5)
|
|
|
|
show = self.show_archive(backup_dir, as_text=True)
|
|
show = self.show_archive(backup_dir)
|
|
|
|
for instance in show:
|
|
if instance['instance'] == 'replica':
|
|
replica_timelines = instance['timelines']
|
|
|
|
if instance['instance'] == 'master':
|
|
master_timelines = instance['timelines']
|
|
|
|
# check that all timelines are ok
|
|
for timeline in replica_timelines:
|
|
self.assertTrue(timeline['status'], 'OK')
|
|
|
|
# check that all timelines are ok
|
|
for timeline in master_timelines:
|
|
self.assertTrue(timeline['status'], 'OK')
|
|
|
|
# create holes in t3
|
|
wals_dir = os.path.join(backup_dir, 'wal', 'replica')
|
|
wals = [
|
|
f for f in os.listdir(wals_dir) if os.path.isfile(os.path.join(wals_dir, f))
|
|
and not f.endswith('.backup') and not f.endswith('.history') and f.startswith('00000003')
|
|
]
|
|
wals.sort()
|
|
|
|
# check that t3 is ok
|
|
self.show_archive(backup_dir)
|
|
|
|
file = os.path.join(backup_dir, 'wal', 'replica', '000000030000000000000017')
|
|
if self.archive_compress:
|
|
file = file + '.gz'
|
|
os.remove(file)
|
|
|
|
file = os.path.join(backup_dir, 'wal', 'replica', '000000030000000000000012')
|
|
if self.archive_compress:
|
|
file = file + '.gz'
|
|
os.remove(file)
|
|
|
|
file = os.path.join(backup_dir, 'wal', 'replica', '000000030000000000000013')
|
|
if self.archive_compress:
|
|
file = file + '.gz'
|
|
os.remove(file)
|
|
|
|
# check that t3 is not OK
|
|
show = self.show_archive(backup_dir)
|
|
|
|
show = self.show_archive(backup_dir)
|
|
|
|
for instance in show:
|
|
if instance['instance'] == 'replica':
|
|
replica_timelines = instance['timelines']
|
|
|
|
# sanity
|
|
for timeline in replica_timelines:
|
|
if timeline['tli'] == 1:
|
|
timeline_1 = timeline
|
|
continue
|
|
|
|
if timeline['tli'] == 2:
|
|
timeline_2 = timeline
|
|
continue
|
|
|
|
if timeline['tli'] == 3:
|
|
timeline_3 = timeline
|
|
continue
|
|
|
|
if timeline['tli'] == 4:
|
|
timeline_4 = timeline
|
|
continue
|
|
|
|
if timeline['tli'] == 5:
|
|
timeline_5 = timeline
|
|
continue
|
|
|
|
if timeline['tli'] == 6:
|
|
timeline_6 = timeline
|
|
continue
|
|
|
|
self.assertEqual(timeline_6['status'], "OK")
|
|
self.assertEqual(timeline_5['status'], "OK")
|
|
self.assertEqual(timeline_4['status'], "OK")
|
|
self.assertEqual(timeline_3['status'], "DEGRADED")
|
|
self.assertEqual(timeline_2['status'], "OK")
|
|
self.assertEqual(timeline_1['status'], "OK")
|
|
|
|
self.assertEqual(len(timeline_3['lost-segments']), 2)
|
|
self.assertEqual(
|
|
timeline_3['lost-segments'][0]['begin-segno'],
|
|
'000000030000000000000012')
|
|
self.assertEqual(
|
|
timeline_3['lost-segments'][0]['end-segno'],
|
|
'000000030000000000000013')
|
|
self.assertEqual(
|
|
timeline_3['lost-segments'][1]['begin-segno'],
|
|
'000000030000000000000017')
|
|
self.assertEqual(
|
|
timeline_3['lost-segments'][1]['end-segno'],
|
|
'000000030000000000000017')
|
|
|
|
self.assertEqual(len(timeline_6['backups']), 0)
|
|
self.assertEqual(len(timeline_5['backups']), 0)
|
|
self.assertEqual(len(timeline_4['backups']), 0)
|
|
self.assertEqual(len(timeline_3['backups']), 3)
|
|
self.assertEqual(len(timeline_2['backups']), 2)
|
|
self.assertEqual(len(timeline_1['backups']), 2)
|
|
|
|
# check closest backup correctness
|
|
self.assertEqual(timeline_6['closest-backup-id'], A1)
|
|
self.assertEqual(timeline_5['closest-backup-id'], B2)
|
|
self.assertEqual(timeline_4['closest-backup-id'], B2)
|
|
self.assertEqual(timeline_3['closest-backup-id'], A1)
|
|
self.assertEqual(timeline_2['closest-backup-id'], Y2)
|
|
|
|
# check parent tli correctness
|
|
self.assertEqual(timeline_6['parent-tli'], 2)
|
|
self.assertEqual(timeline_5['parent-tli'], 4)
|
|
self.assertEqual(timeline_4['parent-tli'], 3)
|
|
self.assertEqual(timeline_3['parent-tli'], 2)
|
|
self.assertEqual(timeline_2['parent-tli'], 1)
|
|
self.assertEqual(timeline_1['parent-tli'], 0)
|
|
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.expectedFailure
|
|
# @unittest.skip("skip")
|
|
def test_archive_catalog_1(self):
|
|
"""
|
|
double segment - compressed and not
|
|
"""
|
|
if not self.archive_compress:
|
|
return self.fail(
|
|
'You need to enable ARCHIVE_COMPRESSION for this test to run')
|
|
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={
|
|
'archive_timeout': '30s',
|
|
'checkpoint_timeout': '30s',
|
|
'autovacuum': 'off'})
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
self.set_archiving(backup_dir, 'node', node, compress=True)
|
|
|
|
node.slow_start()
|
|
|
|
# FULL
|
|
self.backup_node(backup_dir, 'node', node)
|
|
node.pgbench_init(scale=2)
|
|
|
|
wals_dir = os.path.join(backup_dir, 'wal', 'node')
|
|
original_file = os.path.join(wals_dir, '000000010000000000000001.gz')
|
|
tmp_file = os.path.join(wals_dir, '000000010000000000000001')
|
|
|
|
with gzip.open(original_file, 'rb') as f_in, open(tmp_file, 'wb') as f_out:
|
|
shutil.copyfileobj(f_in, f_out)
|
|
|
|
os.rename(
|
|
os.path.join(wals_dir, '000000010000000000000001'),
|
|
os.path.join(wals_dir, '000000010000000000000002'))
|
|
|
|
show = self.show_archive(backup_dir)
|
|
|
|
for instance in show:
|
|
timelines = instance['timelines']
|
|
|
|
# sanity
|
|
for timeline in timelines:
|
|
self.assertEqual(
|
|
timeline['min-segno'],
|
|
'000000010000000000000001')
|
|
self.assertEqual(timeline['status'], 'OK')
|
|
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.expectedFailure
|
|
# @unittest.skip("skip")
|
|
def test_archive_catalog_2(self):
|
|
"""
|
|
double segment - compressed and not
|
|
"""
|
|
if not self.archive_compress:
|
|
return self.fail(
|
|
'You need to enable ARCHIVE_COMPRESSION for this test to run')
|
|
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={
|
|
'archive_timeout': '30s',
|
|
'checkpoint_timeout': '30s',
|
|
'autovacuum': 'off'})
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
self.set_archiving(backup_dir, 'node', node, compress=True)
|
|
|
|
node.slow_start()
|
|
|
|
# FULL
|
|
self.backup_node(backup_dir, 'node', node)
|
|
node.pgbench_init(scale=2)
|
|
|
|
wals_dir = os.path.join(backup_dir, 'wal', 'node')
|
|
original_file = os.path.join(wals_dir, '000000010000000000000001.gz')
|
|
tmp_file = os.path.join(wals_dir, '000000010000000000000001')
|
|
|
|
with gzip.open(original_file, 'rb') as f_in, open(tmp_file, 'wb') as f_out:
|
|
shutil.copyfileobj(f_in, f_out)
|
|
|
|
os.rename(
|
|
os.path.join(wals_dir, '000000010000000000000001'),
|
|
os.path.join(wals_dir, '000000010000000000000002'))
|
|
|
|
os.remove(original_file)
|
|
|
|
show = self.show_archive(backup_dir)
|
|
|
|
for instance in show:
|
|
timelines = instance['timelines']
|
|
|
|
# sanity
|
|
for timeline in timelines:
|
|
self.assertEqual(
|
|
timeline['min-segno'],
|
|
'000000010000000000000002')
|
|
self.assertEqual(timeline['status'], 'OK')
|
|
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.expectedFailure
|
|
# @unittest.skip("skip")
|
|
def test_archive_options(self):
|
|
"""
|
|
check that '--archive-host', '--archive-user', '--archiver-port'
|
|
and '--restore-command' are working as expected.
|
|
"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'])
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
self.set_archiving(backup_dir, 'node', node, compress=True)
|
|
|
|
node.slow_start()
|
|
|
|
# FULL
|
|
self.backup_node(backup_dir, 'node', node)
|
|
node.pgbench_init(scale=1)
|
|
|
|
node.cleanup()
|
|
|
|
wal_dir = os.path.join(backup_dir, 'wal', 'node')
|
|
self.restore_node(
|
|
backup_dir, 'node', node,
|
|
options=[
|
|
'--restore-command="cp {0}/%f %p"'.format(wal_dir),
|
|
'--archive-host=localhost',
|
|
'--archive-port=22',
|
|
'--archive-user={0}'.format(self.user)
|
|
])
|
|
|
|
if self.get_version(node) >= self.version_to_num('12.0'):
|
|
recovery_conf = os.path.join(node.data_dir, 'postgresql.auto.conf')
|
|
else:
|
|
recovery_conf = os.path.join(node.data_dir, 'recovery.conf')
|
|
|
|
with open(recovery_conf, 'r') as f:
|
|
recovery_content = f.read()
|
|
|
|
self.assertIn(
|
|
'restore_command = \'"cp {0}/%f %p"\''.format(wal_dir),
|
|
recovery_content)
|
|
|
|
node.cleanup()
|
|
|
|
self.restore_node(
|
|
backup_dir, 'node', node,
|
|
options=[
|
|
'--archive-host=localhost',
|
|
'--archive-port=22',
|
|
'--archive-user={0}'.format(self.user)])
|
|
|
|
with open(recovery_conf, 'r') as f:
|
|
recovery_content = f.read()
|
|
|
|
self.assertIn(
|
|
"restore_command = '\"{0}\" archive-get -B \"{1}\" --instance \"{2}\" "
|
|
"--wal-file-path=%p --wal-file-name=%f --remote-host=localhost "
|
|
"--remote-port=22 --remote-user={3}'".format(
|
|
self.probackup_path, backup_dir, 'node', self.user),
|
|
recovery_content)
|
|
|
|
node.slow_start()
|
|
|
|
node.safe_psql(
|
|
'postgres',
|
|
'select 1')
|
|
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.expectedFailure
|
|
# @unittest.skip("skip")
|
|
def test_archive_options_1(self):
|
|
"""
|
|
check that '--archive-host', '--archive-user', '--archiver-port'
|
|
and '--restore-command' are working as expected with set-config
|
|
"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'])
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
self.set_archiving(backup_dir, 'node', node, compress=True)
|
|
|
|
node.slow_start()
|
|
|
|
# FULL
|
|
self.backup_node(backup_dir, 'node', node)
|
|
node.pgbench_init(scale=1)
|
|
|
|
node.cleanup()
|
|
|
|
wal_dir = os.path.join(backup_dir, 'wal', 'node')
|
|
self.set_config(
|
|
backup_dir, 'node',
|
|
options=[
|
|
'--restore-command="cp {0}/%f %p"'.format(wal_dir),
|
|
'--archive-host=localhost',
|
|
'--archive-port=22',
|
|
'--archive-user={0}'.format(self.user)])
|
|
self.restore_node(backup_dir, 'node', node)
|
|
|
|
if self.get_version(node) >= self.version_to_num('12.0'):
|
|
recovery_conf = os.path.join(node.data_dir, 'postgresql.auto.conf')
|
|
else:
|
|
recovery_conf = os.path.join(node.data_dir, 'recovery.conf')
|
|
|
|
with open(recovery_conf, 'r') as f:
|
|
recovery_content = f.read()
|
|
|
|
self.assertIn(
|
|
'restore_command = \'"cp {0}/%f %p"\''.format(wal_dir),
|
|
recovery_content)
|
|
|
|
node.cleanup()
|
|
|
|
self.restore_node(
|
|
backup_dir, 'node', node,
|
|
options=[
|
|
'--restore-command=none',
|
|
'--archive-host=localhost1',
|
|
'--archive-port=23',
|
|
'--archive-user={0}'.format(self.user)
|
|
])
|
|
|
|
with open(recovery_conf, 'r') as f:
|
|
recovery_content = f.read()
|
|
|
|
self.assertIn(
|
|
"restore_command = '\"{0}\" archive-get -B \"{1}\" --instance \"{2}\" "
|
|
"--wal-file-path=%p --wal-file-name=%f --remote-host=localhost1 "
|
|
"--remote-port=23 --remote-user={3}'".format(
|
|
self.probackup_path, backup_dir, 'node', self.user),
|
|
recovery_content)
|
|
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.skip("skip")
|
|
# @unittest.expectedFailure
|
|
def test_hexadecimal_timeline(self):
|
|
"""
|
|
Check that timelines are correct.
|
|
"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={'autovacuum': 'off'})
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
self.set_archiving(backup_dir, 'node', node, log_level='verbose')
|
|
node.slow_start()
|
|
|
|
backup_id = self.backup_node(backup_dir, 'node', node)
|
|
node.pgbench_init(scale=2)
|
|
|
|
# create timelines
|
|
for i in range(1, 13):
|
|
# print(i)
|
|
node.cleanup()
|
|
self.restore_node(
|
|
backup_dir, 'node', node,
|
|
options=['--recovery-target-timeline={0}'.format(i)])
|
|
node.slow_start()
|
|
node.pgbench_init(scale=2)
|
|
|
|
sleep(5)
|
|
|
|
show = self.show_archive(backup_dir)
|
|
|
|
timelines = show[0]['timelines']
|
|
|
|
print(timelines[0])
|
|
|
|
tli13 = timelines[0]
|
|
|
|
self.assertEqual(
|
|
13,
|
|
tli13['tli'])
|
|
|
|
self.assertEqual(
|
|
12,
|
|
tli13['parent-tli'])
|
|
|
|
self.assertEqual(
|
|
backup_id,
|
|
tli13['closest-backup-id'])
|
|
|
|
self.assertEqual(
|
|
'0000000D000000000000001C',
|
|
tli13['max-segno'])
|
|
|
|
# Clean after yourself
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
@unittest.skip("skip")
|
|
# @unittest.expectedFailure
|
|
def test_archiving_and_slots(self):
|
|
"""
|
|
Check that archiving don`t break slot
|
|
guarantee.
|
|
"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={
|
|
'autovacuum': 'off',
|
|
'checkpoint_timeout': '30s',
|
|
'max_wal_size': '64MB'})
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
self.set_archiving(backup_dir, 'node', node, log_level='verbose')
|
|
node.slow_start()
|
|
|
|
if self.get_version(node) < 100000:
|
|
pg_receivexlog_path = self.get_bin_path('pg_receivexlog')
|
|
else:
|
|
pg_receivexlog_path = self.get_bin_path('pg_receivewal')
|
|
|
|
# "pg_receivewal --create-slot --slot archive_slot --if-not-exists "
|
|
# "&& pg_receivewal --synchronous -Z 1 /tmp/wal --slot archive_slot --no-loop"
|
|
|
|
self.run_binary(
|
|
[
|
|
pg_receivexlog_path, '-p', str(node.port), '--synchronous',
|
|
'--create-slot', '--slot', 'archive_slot', '--if-not-exists'
|
|
])
|
|
|
|
node.pgbench_init(scale=10)
|
|
|
|
pg_receivexlog = self.run_binary(
|
|
[
|
|
pg_receivexlog_path, '-p', str(node.port), '--synchronous',
|
|
'-D', os.path.join(backup_dir, 'wal', 'node'),
|
|
'--no-loop', '--slot', 'archive_slot',
|
|
'-Z', '1'
|
|
], asynchronous=True)
|
|
|
|
if pg_receivexlog.returncode:
|
|
self.assertFalse(
|
|
True,
|
|
'Failed to start pg_receivexlog: {0}'.format(
|
|
pg_receivexlog.communicate()[1]))
|
|
|
|
sleep(2)
|
|
|
|
pg_receivexlog.kill()
|
|
|
|
backup_id = self.backup_node(backup_dir, 'node', node)
|
|
node.pgbench_init(scale=20)
|
|
|
|
exit(1)
|
|
|
|
# Clean after yourself
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
def test_archive_push_sanity(self):
|
|
""""""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={
|
|
'archive_mode': 'on',
|
|
'archive_command': 'exit 1'})
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
|
|
node.slow_start()
|
|
|
|
node.pgbench_init(scale=50)
|
|
node.stop()
|
|
|
|
self.set_archiving(backup_dir, 'node', node)
|
|
os.remove(os.path.join(node.logs_dir, 'postgresql.log'))
|
|
node.slow_start()
|
|
|
|
self.backup_node(backup_dir, 'node', node)
|
|
|
|
with open(os.path.join(node.logs_dir, 'postgresql.log'), 'r') as f:
|
|
postgres_log_content = f.read()
|
|
|
|
# print(postgres_log_content)
|
|
# make sure that .backup file is not compressed
|
|
self.assertNotIn('.backup.gz', postgres_log_content)
|
|
self.assertNotIn('WARNING', postgres_log_content)
|
|
|
|
replica = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'replica'))
|
|
replica.cleanup()
|
|
|
|
self.restore_node(
|
|
backup_dir, 'node', replica,
|
|
data_dir=replica.data_dir, options=['-R'])
|
|
|
|
#self.set_archiving(backup_dir, 'replica', replica, replica=True)
|
|
self.set_auto_conf(replica, {'port': replica.port})
|
|
self.set_auto_conf(replica, {'archive_mode': 'always'})
|
|
self.set_auto_conf(replica, {'hot_standby': 'on'})
|
|
replica.slow_start(replica=True)
|
|
|
|
self.wait_until_replica_catch_with_master(node, replica)
|
|
|
|
node.pgbench_init(scale=5)
|
|
|
|
replica.promote()
|
|
replica.pgbench_init(scale=10)
|
|
|
|
with open(os.path.join(replica.logs_dir, 'postgresql.log'), 'r') as f:
|
|
replica_log_content = f.read()
|
|
|
|
# make sure that .partial file is not compressed
|
|
self.assertNotIn('.partial.gz', replica_log_content)
|
|
# make sure that .history file is not compressed
|
|
self.assertNotIn('.history.gz', replica_log_content)
|
|
self.assertNotIn('WARNING', replica_log_content)
|
|
|
|
output = self.show_archive(
|
|
backup_dir, 'node', as_json=False, as_text=True,
|
|
options=['--log-level-console=INFO'])
|
|
|
|
self.assertNotIn('WARNING', output)
|
|
|
|
# Clean after yourself
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.expectedFailure
|
|
# @unittest.skip("skip")
|
|
def test_archive_pg_receivexlog_partial_handling(self):
|
|
"""check that archive-get delivers .partial and .gz.partial files"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={'archive_timeout': '10s'})
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
|
|
node.slow_start()
|
|
|
|
self.backup_node(backup_dir, 'node', node, options=['--stream'])
|
|
|
|
replica = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'replica'))
|
|
replica.cleanup()
|
|
|
|
self.restore_node(
|
|
backup_dir, 'node', replica, replica.data_dir, options=['-R'])
|
|
self.set_auto_conf(replica, {'port': replica.port})
|
|
self.set_replica(node, replica)
|
|
|
|
self.add_instance(backup_dir, 'replica', replica)
|
|
# self.set_archiving(backup_dir, 'replica', replica, replica=True)
|
|
|
|
replica.slow_start(replica=True)
|
|
|
|
if self.get_version(replica) < 100000:
|
|
pg_receivexlog_path = self.get_bin_path('pg_receivexlog')
|
|
else:
|
|
pg_receivexlog_path = self.get_bin_path('pg_receivewal')
|
|
|
|
cmdline = [
|
|
pg_receivexlog_path, '-p', str(replica.port), '--synchronous',
|
|
'-D', os.path.join(backup_dir, 'wal', 'replica')]
|
|
|
|
if self.archive_compress and node.major_version >= 10:
|
|
cmdline += ['-Z', '1']
|
|
|
|
pg_receivexlog = self.run_binary(cmdline, asynchronous=True)
|
|
|
|
if pg_receivexlog.returncode:
|
|
self.assertFalse(
|
|
True,
|
|
'Failed to start pg_receivexlog: {0}'.format(
|
|
pg_receivexlog.communicate()[1]))
|
|
|
|
# FULL
|
|
self.backup_node(backup_dir, 'replica', replica, options=['--stream'])
|
|
|
|
node.safe_psql(
|
|
"postgres",
|
|
"create table t_heap as select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(0,1000000) i")
|
|
|
|
# PAGE
|
|
self.backup_node(
|
|
backup_dir, 'replica', replica, backup_type='delta', options=['--stream'])
|
|
|
|
node.safe_psql(
|
|
"postgres",
|
|
"insert into t_heap select i as id, md5(i::text) as text, "
|
|
"md5(repeat(i::text,10))::tsvector as tsvector "
|
|
"from generate_series(1000000,2000000) i")
|
|
|
|
node_restored = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node_restored'))
|
|
node_restored.cleanup()
|
|
|
|
self.restore_node(
|
|
backup_dir, 'replica', node_restored,
|
|
node_restored.data_dir, options=['--recovery-target=latest', '--recovery-target-action=promote'])
|
|
self.set_auto_conf(node_restored, {'port': node_restored.port})
|
|
self.set_auto_conf(node_restored, {'hot_standby': 'off'})
|
|
|
|
# it will set node_restored as warm standby.
|
|
# with open(os.path.join(node_restored.data_dir, "standby.signal"), 'w') as f:
|
|
# f.flush()
|
|
# f.close()
|
|
|
|
node_restored.slow_start()
|
|
|
|
result = node.safe_psql(
|
|
"postgres",
|
|
"select sum(id) from t_heap")
|
|
|
|
result_new = node_restored.safe_psql(
|
|
"postgres",
|
|
"select sum(id) from t_heap")
|
|
|
|
self.assertEqual(result, result_new)
|
|
|
|
# Clean after yourself
|
|
pg_receivexlog.kill()
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
@unittest.skip("skip")
|
|
def test_multi_timeline_recovery_prefetching(self):
|
|
""""""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={'autovacuum': 'off'})
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
self.set_archiving(backup_dir, 'node', node)
|
|
|
|
node.slow_start()
|
|
|
|
self.backup_node(backup_dir, 'node', node)
|
|
|
|
node.pgbench_init(scale=50)
|
|
|
|
target_xid = node.safe_psql(
|
|
'postgres',
|
|
'select txid_current()').rstrip()
|
|
|
|
node.pgbench_init(scale=20)
|
|
|
|
node.stop()
|
|
node.cleanup()
|
|
|
|
self.restore_node(
|
|
backup_dir, 'node', node,
|
|
options=[
|
|
'--recovery-target-xid={0}'.format(target_xid),
|
|
'--recovery-target-action=promote'])
|
|
|
|
node.slow_start()
|
|
|
|
node.pgbench_init(scale=20)
|
|
|
|
target_xid = node.safe_psql(
|
|
'postgres',
|
|
'select txid_current()').rstrip()
|
|
|
|
node.stop(['-m', 'immediate', '-D', node.data_dir])
|
|
node.cleanup()
|
|
|
|
self.restore_node(
|
|
backup_dir, 'node', node,
|
|
options=[
|
|
# '--recovery-target-xid={0}'.format(target_xid),
|
|
'--recovery-target-timeline=2',
|
|
# '--recovery-target-action=promote',
|
|
'--no-validate'])
|
|
node.slow_start()
|
|
|
|
node.pgbench_init(scale=20)
|
|
result = node.safe_psql(
|
|
'postgres',
|
|
'select * from pgbench_accounts')
|
|
node.stop()
|
|
node.cleanup()
|
|
|
|
self.restore_node(
|
|
backup_dir, 'node', node,
|
|
options=[
|
|
# '--recovery-target-xid=100500',
|
|
'--recovery-target-timeline=3',
|
|
# '--recovery-target-action=promote',
|
|
'--no-validate'])
|
|
os.remove(os.path.join(node.logs_dir, 'postgresql.log'))
|
|
|
|
restore_command = self.get_restore_command(backup_dir, 'node', node)
|
|
restore_command += ' -j 2 --batch-size=10 --log-level-console=VERBOSE'
|
|
|
|
if node.major_version >= 12:
|
|
node.append_conf(
|
|
'postgresql.auto.conf', "restore_command = '{0}'".format(restore_command))
|
|
else:
|
|
node.append_conf(
|
|
'recovery.conf', "restore_command = '{0}'".format(restore_command))
|
|
|
|
node.slow_start()
|
|
|
|
result_new = node.safe_psql(
|
|
'postgres',
|
|
'select * from pgbench_accounts')
|
|
|
|
self.assertEqual(result, result_new)
|
|
|
|
with open(os.path.join(node.logs_dir, 'postgresql.log'), 'r') as f:
|
|
postgres_log_content = f.read()
|
|
|
|
# check that requesting of non-existing segment do not
|
|
# throwns aways prefetch
|
|
self.assertIn(
|
|
'pg_probackup archive-get failed to '
|
|
'deliver WAL file: 000000030000000000000006',
|
|
postgres_log_content)
|
|
|
|
self.assertIn(
|
|
'pg_probackup archive-get failed to '
|
|
'deliver WAL file: 000000020000000000000006',
|
|
postgres_log_content)
|
|
|
|
self.assertIn(
|
|
'pg_probackup archive-get used prefetched '
|
|
'WAL segment 000000010000000000000006, prefetch state: 5/10',
|
|
postgres_log_content)
|
|
|
|
# Clean after yourself
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
def test_archive_get_batching_sanity(self):
|
|
"""
|
|
Make sure that batching works.
|
|
.gz file is corrupted and uncompressed is not, check that both
|
|
corruption detected and uncompressed file is used.
|
|
"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={'autovacuum': 'off'})
|
|
|
|
if self.get_version(node) < self.version_to_num('9.6.0'):
|
|
self.del_test_dir(module_name, fname)
|
|
return unittest.skip(
|
|
'Skipped because backup from replica is not supported in PG 9.5')
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
self.set_archiving(backup_dir, 'node', node)
|
|
|
|
node.slow_start()
|
|
|
|
self.backup_node(backup_dir, 'node', node, options=['--stream'])
|
|
|
|
node.pgbench_init(scale=50)
|
|
|
|
replica = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'replica'))
|
|
replica.cleanup()
|
|
|
|
self.restore_node(
|
|
backup_dir, 'node', replica, replica.data_dir)
|
|
self.set_replica(node, replica, log_shipping=True)
|
|
|
|
if node.major_version >= 12:
|
|
self.set_auto_conf(replica, {'restore_command': 'exit 1'})
|
|
else:
|
|
replica.append_conf('recovery.conf', "restore_command = 'exit 1'")
|
|
|
|
replica.slow_start(replica=True)
|
|
|
|
# at this point replica is consistent
|
|
restore_command = self.get_restore_command(backup_dir, 'node', replica)
|
|
|
|
restore_command += ' -j 2 --batch-size=10'
|
|
|
|
# print(restore_command)
|
|
|
|
if node.major_version >= 12:
|
|
self.set_auto_conf(replica, {'restore_command': restore_command})
|
|
else:
|
|
replica.append_conf(
|
|
'recovery.conf', "restore_command = '{0}'".format(restore_command))
|
|
|
|
replica.restart()
|
|
|
|
sleep(5)
|
|
|
|
with open(os.path.join(replica.logs_dir, 'postgresql.log'), 'r') as f:
|
|
postgres_log_content = f.read()
|
|
|
|
self.assertIn(
|
|
'pg_probackup archive-get completed successfully, fetched: 10/10',
|
|
postgres_log_content)
|
|
self.assertIn('used prefetched WAL segment', postgres_log_content)
|
|
self.assertIn('prefetch state: 9/10', postgres_log_content)
|
|
self.assertIn('prefetch state: 8/10', postgres_log_content)
|
|
|
|
# Clean after yourself
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
def test_archive_get_prefetch_corruption(self):
|
|
"""
|
|
Make sure that WAL corruption is detected.
|
|
And --prefetch-dir is honored.
|
|
"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={'autovacuum': 'off'})
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
self.set_archiving(backup_dir, 'node', node)
|
|
|
|
node.slow_start()
|
|
|
|
self.backup_node(backup_dir, 'node', node, options=['--stream'])
|
|
|
|
node.pgbench_init(scale=50)
|
|
|
|
replica = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'replica'))
|
|
replica.cleanup()
|
|
|
|
self.restore_node(
|
|
backup_dir, 'node', replica, replica.data_dir)
|
|
self.set_replica(node, replica, log_shipping=True)
|
|
|
|
if node.major_version >= 12:
|
|
self.set_auto_conf(replica, {'restore_command': 'exit 1'})
|
|
else:
|
|
replica.append_conf('recovery.conf', "restore_command = 'exit 1'")
|
|
|
|
replica.slow_start(replica=True)
|
|
|
|
# at this point replica is consistent
|
|
restore_command = self.get_restore_command(backup_dir, 'node', replica)
|
|
|
|
restore_command += ' -j5 --batch-size=10 --log-level-console=VERBOSE'
|
|
#restore_command += ' --batch-size=2 --log-level-console=VERBOSE'
|
|
|
|
if node.major_version >= 12:
|
|
self.set_auto_conf(replica, {'restore_command': restore_command})
|
|
else:
|
|
replica.append_conf(
|
|
'recovery.conf', "restore_command = '{0}'".format(restore_command))
|
|
|
|
replica.restart()
|
|
|
|
sleep(5)
|
|
|
|
with open(os.path.join(replica.logs_dir, 'postgresql.log'), 'r') as f:
|
|
postgres_log_content = f.read()
|
|
|
|
self.assertIn(
|
|
'pg_probackup archive-get completed successfully, fetched: 10/10',
|
|
postgres_log_content)
|
|
self.assertIn('used prefetched WAL segment', postgres_log_content)
|
|
self.assertIn('prefetch state: 9/10', postgres_log_content)
|
|
self.assertIn('prefetch state: 8/10', postgres_log_content)
|
|
|
|
replica.stop()
|
|
|
|
# generate WAL, copy it into prefetch directory, then corrupt
|
|
# some segment
|
|
node.pgbench_init(scale=20)
|
|
sleep(20)
|
|
|
|
# now copy WAL files into prefetch directory and corrupt some of them
|
|
archive_dir = os.path.join(backup_dir, 'wal', 'node')
|
|
files = os.listdir(archive_dir)
|
|
files.sort()
|
|
|
|
for filename in [files[-4], files[-3], files[-2], files[-1]]:
|
|
src_file = os.path.join(archive_dir, filename)
|
|
|
|
if node.major_version >= 10:
|
|
wal_dir = 'pg_wal'
|
|
else:
|
|
wal_dir = 'pg_xlog'
|
|
|
|
if filename.endswith('.gz'):
|
|
dst_file = os.path.join(replica.data_dir, wal_dir, 'pbk_prefetch', filename[:-3])
|
|
with gzip.open(src_file, 'rb') as f_in, open(dst_file, 'wb') as f_out:
|
|
shutil.copyfileobj(f_in, f_out)
|
|
else:
|
|
dst_file = os.path.join(replica.data_dir, wal_dir, 'pbk_prefetch', filename)
|
|
shutil.copyfile(src_file, dst_file)
|
|
|
|
# print(dst_file)
|
|
|
|
# corrupt file
|
|
if files[-2].endswith('.gz'):
|
|
filename = files[-2][:-3]
|
|
else:
|
|
filename = files[-2]
|
|
|
|
prefetched_file = os.path.join(replica.data_dir, wal_dir, 'pbk_prefetch', filename)
|
|
|
|
with open(prefetched_file, "rb+", 0) as f:
|
|
f.seek(8192*2)
|
|
f.write(b"SURIKEN")
|
|
f.flush()
|
|
f.close
|
|
|
|
# enable restore_command
|
|
restore_command = self.get_restore_command(backup_dir, 'node', replica)
|
|
restore_command += ' --batch-size=2 --log-level-console=VERBOSE'
|
|
|
|
if node.major_version >= 12:
|
|
self.set_auto_conf(replica, {'restore_command': restore_command})
|
|
else:
|
|
replica.append_conf(
|
|
'recovery.conf', "restore_command = '{0}'".format(restore_command))
|
|
|
|
os.remove(os.path.join(replica.logs_dir, 'postgresql.log'))
|
|
replica.slow_start(replica=True)
|
|
|
|
sleep(60)
|
|
|
|
with open(os.path.join(replica.logs_dir, 'postgresql.log'), 'r') as f:
|
|
postgres_log_content = f.read()
|
|
|
|
self.assertIn(
|
|
'Prefetched WAL segment {0} is invalid, cannot use it'.format(filename),
|
|
postgres_log_content)
|
|
|
|
self.assertIn(
|
|
'LOG: restored log file "{0}" from archive'.format(filename),
|
|
postgres_log_content)
|
|
|
|
# Clean after yourself
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.skip("skip")
|
|
def test_archive_show_partial_files_handling(self):
|
|
"""
|
|
check that files with '.part', '.part.gz', '.partial' and '.partial.gz'
|
|
siffixes are handled correctly
|
|
"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'])
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
self.set_archiving(backup_dir, 'node', node, compress=False)
|
|
|
|
node.slow_start()
|
|
|
|
self.backup_node(backup_dir, 'node', node)
|
|
|
|
wals_dir = os.path.join(backup_dir, 'wal', 'node')
|
|
|
|
# .part file
|
|
node.safe_psql(
|
|
"postgres",
|
|
"create table t1()")
|
|
|
|
if self.get_version(node) < 100000:
|
|
filename = node.safe_psql(
|
|
"postgres",
|
|
"SELECT file_name "
|
|
"FROM pg_xlogfile_name_offset(pg_current_xlog_location())").rstrip()
|
|
else:
|
|
filename = node.safe_psql(
|
|
"postgres",
|
|
"SELECT file_name "
|
|
"FROM pg_walfile_name_offset(pg_current_wal_flush_lsn())").rstrip()
|
|
|
|
filename = filename.decode('utf-8')
|
|
|
|
self.switch_wal_segment(node)
|
|
|
|
os.rename(
|
|
os.path.join(wals_dir, filename),
|
|
os.path.join(wals_dir, '{0}.part'.format(filename)))
|
|
|
|
# .gz.part file
|
|
node.safe_psql(
|
|
"postgres",
|
|
"create table t2()")
|
|
|
|
if self.get_version(node) < 100000:
|
|
filename = node.safe_psql(
|
|
"postgres",
|
|
"SELECT file_name "
|
|
"FROM pg_xlogfile_name_offset(pg_current_xlog_location())").rstrip()
|
|
else:
|
|
filename = node.safe_psql(
|
|
"postgres",
|
|
"SELECT file_name "
|
|
"FROM pg_walfile_name_offset(pg_current_wal_flush_lsn())").rstrip()
|
|
|
|
filename = filename.decode('utf-8')
|
|
|
|
self.switch_wal_segment(node)
|
|
|
|
os.rename(
|
|
os.path.join(wals_dir, filename),
|
|
os.path.join(wals_dir, '{0}.gz.part'.format(filename)))
|
|
|
|
# .partial file
|
|
node.safe_psql(
|
|
"postgres",
|
|
"create table t3()")
|
|
|
|
if self.get_version(node) < 100000:
|
|
filename = node.safe_psql(
|
|
"postgres",
|
|
"SELECT file_name "
|
|
"FROM pg_xlogfile_name_offset(pg_current_xlog_location())").rstrip()
|
|
else:
|
|
filename = node.safe_psql(
|
|
"postgres",
|
|
"SELECT file_name "
|
|
"FROM pg_walfile_name_offset(pg_current_wal_flush_lsn())").rstrip()
|
|
|
|
filename = filename.decode('utf-8')
|
|
|
|
self.switch_wal_segment(node)
|
|
|
|
os.rename(
|
|
os.path.join(wals_dir, filename),
|
|
os.path.join(wals_dir, '{0}.partial'.format(filename)))
|
|
|
|
# .gz.partial file
|
|
node.safe_psql(
|
|
"postgres",
|
|
"create table t4()")
|
|
|
|
if self.get_version(node) < 100000:
|
|
filename = node.safe_psql(
|
|
"postgres",
|
|
"SELECT file_name "
|
|
"FROM pg_xlogfile_name_offset(pg_current_xlog_location())").rstrip()
|
|
else:
|
|
filename = node.safe_psql(
|
|
"postgres",
|
|
"SELECT file_name "
|
|
"FROM pg_walfile_name_offset(pg_current_wal_flush_lsn())").rstrip()
|
|
|
|
filename = filename.decode('utf-8')
|
|
|
|
self.switch_wal_segment(node)
|
|
|
|
os.rename(
|
|
os.path.join(wals_dir, filename),
|
|
os.path.join(wals_dir, '{0}.gz.partial'.format(filename)))
|
|
|
|
self.show_archive(backup_dir, 'node', options=['--log-level-file=VERBOSE'])
|
|
|
|
with open(os.path.join(backup_dir, 'log', 'pg_probackup.log'), 'r') as f:
|
|
log_content = f.read()
|
|
|
|
self.assertNotIn(
|
|
'WARNING',
|
|
log_content)
|
|
|
|
# Clean after yourself
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# @unittest.expectedFailure
|
|
# @unittest.skip("skip")
|
|
def test_archive_empty_history_file(self):
|
|
"""
|
|
https://github.com/postgrespro/pg_probackup/issues/326
|
|
"""
|
|
fname = self.id().split('.')[3]
|
|
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
|
|
node = self.make_simple_node(
|
|
base_dir=os.path.join(module_name, fname, 'node'),
|
|
set_replication=True,
|
|
initdb_params=['--data-checksums'])
|
|
|
|
self.init_pb(backup_dir)
|
|
self.add_instance(backup_dir, 'node', node)
|
|
self.set_archiving(backup_dir, 'node', node)
|
|
|
|
node.slow_start()
|
|
node.pgbench_init(scale=5)
|
|
|
|
# FULL
|
|
self.backup_node(backup_dir, 'node', node)
|
|
|
|
node.pgbench_init(scale=5)
|
|
node.cleanup()
|
|
|
|
self.restore_node(
|
|
backup_dir, 'node', node,
|
|
options=[
|
|
'--recovery-target=latest',
|
|
'--recovery-target-action=promote'])
|
|
|
|
# Node in timeline 2
|
|
node.slow_start()
|
|
|
|
node.pgbench_init(scale=5)
|
|
node.cleanup()
|
|
|
|
self.restore_node(
|
|
backup_dir, 'node', node,
|
|
options=[
|
|
'--recovery-target=latest',
|
|
'--recovery-target-timeline=2',
|
|
'--recovery-target-action=promote'])
|
|
|
|
# Node in timeline 3
|
|
node.slow_start()
|
|
|
|
node.pgbench_init(scale=5)
|
|
node.cleanup()
|
|
|
|
self.restore_node(
|
|
backup_dir, 'node', node,
|
|
options=[
|
|
'--recovery-target=latest',
|
|
'--recovery-target-timeline=3',
|
|
'--recovery-target-action=promote'])
|
|
|
|
# Node in timeline 4
|
|
node.slow_start()
|
|
node.pgbench_init(scale=5)
|
|
|
|
# Truncate history files
|
|
for tli in range(2, 5):
|
|
file = os.path.join(
|
|
backup_dir, 'wal', 'node', '0000000{0}.history'.format(tli))
|
|
with open(file, "w+") as f:
|
|
f.truncate()
|
|
|
|
timelines = self.show_archive(backup_dir, 'node', options=['--log-level-file=INFO'])
|
|
|
|
# check that all timelines has zero switchpoint
|
|
for timeline in timelines:
|
|
self.assertEqual(timeline['switchpoint'], '0/0')
|
|
|
|
log_file = os.path.join(backup_dir, 'log', 'pg_probackup.log')
|
|
with open(log_file, 'r') as f:
|
|
log_content = f.read()
|
|
wal_dir = os.path.join(backup_dir, 'wal', 'node')
|
|
|
|
self.assertIn(
|
|
'WARNING: History file is corrupted or missing: "{0}"'.format(os.path.join(wal_dir, '00000002.history')),
|
|
log_content)
|
|
self.assertIn(
|
|
'WARNING: History file is corrupted or missing: "{0}"'.format(os.path.join(wal_dir, '00000003.history')),
|
|
log_content)
|
|
self.assertIn(
|
|
'WARNING: History file is corrupted or missing: "{0}"'.format(os.path.join(wal_dir, '00000004.history')),
|
|
log_content)
|
|
|
|
self.del_test_dir(module_name, fname)
|
|
|
|
# TODO test with multiple not archived segments.
|
|
# TODO corrupted file in archive.
|
|
|
|
# important - switchpoint may be NullOffset LSN and not actually existing in archive to boot.
|
|
# so write WAL validation code accordingly
|
|
|
|
# change wal-seg-size
|
|
#
|
|
#
|
|
#t3 ----------------
|
|
# /
|
|
#t2 ----------------
|
|
# /
|
|
#t1 -A--------
|
|
#
|
|
#
|
|
|
|
|
|
#t3 ----------------
|
|
# /
|
|
#t2 ----------------
|
|
# /
|
|
#t1 -A--------
|
|
# |