mirror of
https://github.com/postgrespro/pg_probackup.git
synced 2024-12-02 09:53:24 +02:00
298 lines
11 KiB
Python
298 lines
11 KiB
Python
import os
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import unittest
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from .helpers.ptrack_helpers import ProbackupTest, ProbackupException
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from datetime import datetime, timedelta
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import subprocess
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import time
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module_name = 'page'
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class PageBackupTest(ProbackupTest, unittest.TestCase):
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# @unittest.skip("skip")
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def test_page_vacuum_truncate(self):
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"""make node, create table, take full backup,
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delete last 3 pages, vacuum relation,
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take page backup, take second page backup,
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restore last page backup and check data correctness"""
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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="{0}/{1}/node".format(module_name, fname),
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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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'wal_level': 'replica',
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'max_wal_senders': '2',
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'checkpoint_timeout': '300s'
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}
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)
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node_restored = self.make_simple_node(
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base_dir="{0}/{1}/node_restored".format(module_name, fname),
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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_restored.cleanup()
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node.start()
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self.create_tblspace_in_node(node, 'somedata')
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node.safe_psql(
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"postgres",
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"create sequence t_seq; "
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"create table t_heap tablespace somedata as select i as id, "
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"md5(i::text) as text, "
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"md5(repeat(i::text,10))::tsvector as tsvector "
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"from generate_series(0,1024) i;"
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)
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node.safe_psql(
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"postgres",
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"vacuum t_heap"
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)
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self.backup_node(backup_dir, 'node', node)
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node.safe_psql(
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"postgres",
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"delete from t_heap where ctid >= '(11,0)'"
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)
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node.safe_psql(
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"postgres",
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"vacuum t_heap"
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)
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self.backup_node(
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backup_dir, 'node', node, backup_type='page',
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options=['--log-level-file=verbose']
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)
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self.backup_node(
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backup_dir, 'node', node, backup_type='page',
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options=['--log-level-file=verbose']
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)
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if self.paranoia:
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pgdata = self.pgdata_content(node.data_dir)
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old_tablespace = self.get_tblspace_path(node, 'somedata')
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new_tablespace = self.get_tblspace_path(node_restored, 'somedata_new')
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self.restore_node(
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backup_dir, 'node', node_restored,
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options=["-j", "4", "-T", "{0}={1}".format(
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old_tablespace, new_tablespace)]
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)
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# Physical comparison
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if self.paranoia:
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pgdata_restored = self.pgdata_content(node_restored.data_dir)
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self.compare_pgdata(pgdata, pgdata_restored)
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node_restored.append_conf(
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"postgresql.auto.conf", "port = {0}".format(node_restored.port))
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node_restored.start()
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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_page_stream(self):
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"""make archive node, take full and page stream backups, restore them and check data correctness"""
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self.maxDiff = None
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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="{0}/{1}/node".format(module_name, fname),
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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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'wal_level': 'replica',
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'max_wal_senders': '2',
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'checkpoint_timeout': '30s',
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'ptrack_enable': 'on'}
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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.start()
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# FULL BACKUP
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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(i::text)::tsvector as tsvector "
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"from generate_series(0,100) i")
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full_result = node.execute("postgres", "SELECT * FROM t_heap")
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full_backup_id = self.backup_node(
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backup_dir, 'node', node,
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backup_type='full', options=['--stream'])
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# PAGE BACKUP
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node.safe_psql(
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"postgres",
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"insert into t_heap select i as id, md5(i::text) as text, "
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"md5(i::text)::tsvector as tsvector "
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"from generate_series(100,200) i")
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page_result = node.execute("postgres", "SELECT * FROM t_heap")
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page_backup_id = self.backup_node(
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backup_dir, 'node', node,
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backup_type='page', options=['--stream'])
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# Drop Node
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node.cleanup()
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# Check full backup
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self.assertIn(
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"INFO: Restore of backup {0} completed.".format(full_backup_id),
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self.restore_node(
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backup_dir, 'node', node,
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backup_id=full_backup_id, options=["-j", "4"]),
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'\n Unexpected Error Message: {0}\n'
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' CMD: {1}'.format(repr(self.output), self.cmd))
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node.start()
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full_result_new = node.execute("postgres", "SELECT * FROM t_heap")
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self.assertEqual(full_result, full_result_new)
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node.cleanup()
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# Check page backup
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self.assertIn(
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"INFO: Restore of backup {0} completed.".format(page_backup_id),
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self.restore_node(
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backup_dir, 'node', node,
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backup_id=page_backup_id, options=["-j", "4"]),
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'\n Unexpected Error Message: {0}\n'
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' CMD: {1}'.format(repr(self.output), self.cmd))
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node.start()
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page_result_new = node.execute("postgres", "SELECT * FROM t_heap")
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self.assertEqual(page_result, page_result_new)
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node.cleanup()
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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_page_archive(self):
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"""make archive node, take full and page archive backups, restore them and check data correctness"""
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self.maxDiff = None
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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(base_dir="{0}/{1}/node".format(module_name, fname),
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set_replication=True,
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initdb_params=['--data-checksums'],
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pg_options={'wal_level': 'replica', 'max_wal_senders': '2', 'checkpoint_timeout': '30s', 'ptrack_enable': 'on'}
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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.start()
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# FULL BACKUP
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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, md5(i::text)::tsvector as tsvector from generate_series(0,1) i")
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full_result = node.execute("postgres", "SELECT * FROM t_heap")
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full_backup_id = self.backup_node(backup_dir, 'node', node, backup_type='full')
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#PAGE BACKUP
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node.safe_psql(
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"postgres",
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"insert into t_heap select i as id, md5(i::text) as text, md5(i::text)::tsvector as tsvector from generate_series(0,2) i")
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page_result = node.execute("postgres", "SELECT * FROM t_heap")
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page_backup_id = self.backup_node(backup_dir, 'node', node, backup_type='page')
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# Drop Node
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node.cleanup()
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# Restore and check full backup
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self.assertIn("INFO: Restore of backup {0} completed.".format(full_backup_id),
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self.restore_node(backup_dir, 'node', node, backup_id=full_backup_id, options=["-j", "4"]),
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'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(self.output), self.cmd))
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node.start()
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full_result_new = node.execute("postgres", "SELECT * FROM t_heap")
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self.assertEqual(full_result, full_result_new)
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node.cleanup()
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# Restore and check page backup
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self.assertIn("INFO: Restore of backup {0} completed.".format(page_backup_id),
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self.restore_node(backup_dir, 'node', node, backup_id=page_backup_id, options=["-j", "4"]),
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'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(self.output), self.cmd))
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node.start()
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page_result_new = node.execute("postgres", "SELECT * FROM t_heap")
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self.assertEqual(page_result, page_result_new)
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node.cleanup()
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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_page_multiple_segments(self):
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"""Make node, create table with multiple segments, write some data to it, check page and data correctness"""
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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(base_dir="{0}/{1}/node".format(module_name, fname),
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set_replication=True,
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initdb_params=['--data-checksums'],
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pg_options={'wal_level': 'replica', 'max_wal_senders': '2',
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'ptrack_enable': 'on', 'fsync': 'off', 'shared_buffers': '1GB',
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'maintenance_work_mem': '1GB', 'autovacuum': 'off', 'full_page_writes': 'off'}
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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.start()
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self.create_tblspace_in_node(node, 'somedata')
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# CREATE TABLE
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node.pgbench_init(scale=100, options=['--tablespace=somedata'])
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# FULL BACKUP
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self.backup_node(backup_dir, 'node', node)
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# PGBENCH STUFF
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pgbench = node.pgbench(options=['-T', '150', '-c', '2', '--no-vacuum'])
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pgbench.wait()
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node.safe_psql("postgres", "checkpoint")
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# GET LOGICAL CONTENT FROM NODE
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result = node.safe_psql("postgres", "select * from pgbench_accounts")
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# PAGE BACKUP
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self.backup_node(backup_dir, 'node', node, backup_type='page', options=["--log-level-file=verbose"])
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# GET PHYSICAL CONTENT FROM NODE
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pgdata = self.pgdata_content(node.data_dir)
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# RESTORE NODE
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restored_node = self.make_simple_node(base_dir="{0}/{1}/restored_node".format(module_name, fname))
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restored_node.cleanup()
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tblspc_path = self.get_tblspace_path(node, 'somedata')
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tblspc_path_new = self.get_tblspace_path(restored_node, 'somedata_restored')
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self.restore_node(backup_dir, 'node', restored_node, options=[
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"-j", "4", "-T", "{0}={1}".format(tblspc_path, tblspc_path_new)])
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# GET PHYSICAL CONTENT FROM NODE_RESTORED
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pgdata_restored = self.pgdata_content(restored_node.data_dir)
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# START RESTORED NODE
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restored_node.append_conf("postgresql.auto.conf", "port = {0}".format(restored_node.port))
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restored_node.start()
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while restored_node.safe_psql("postgres", "select pg_is_in_recovery()") == 't\n':
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time.sleep(1)
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result_new = restored_node.safe_psql("postgres", "select * from pgbench_accounts")
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# COMPARE RESTORED FILES
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self.assertEqual(result, result_new, 'data is lost')
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if self.paranoia:
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self.compare_pgdata(pgdata, pgdata_restored)
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# Clean after yourself
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self.del_test_dir(module_name, fname)
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