mirror of
https://github.com/postgrespro/pg_probackup.git
synced 2024-12-05 11:00:22 +02:00
310 lines
14 KiB
Python
310 lines
14 KiB
Python
import unittest
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import os
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from .helpers.ptrack_helpers import ProbackupTest, ProbackupException
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from datetime import datetime, timedelta
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from testgres import stop_all, clean_all
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import subprocess
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from sys import exit
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class ValidateTest(ProbackupTest, unittest.TestCase):
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def __init__(self, *args, **kwargs):
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super(ValidateTest, self).__init__(*args, **kwargs)
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self.module_name = 'validate'
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# @unittest.skip("skip")
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# @unittest.expectedFailure
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def test_validate_wal_unreal_values(self):
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"""make node with archiving, make archive backup, validate to both real and unreal values"""
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fname = self.id().split('.')[3]
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node = self.make_simple_node(base_dir="{0}/{1}/node".format(self.module_name, fname),
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initdb_params=['--data-checksums'],
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pg_options={'wal_level': 'replica'}
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)
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backup_dir = os.path.join(self.tmp_path, self.module_name, fname, 'backup')
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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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node.pgbench_init(scale=2)
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with node.connect("postgres") as con:
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con.execute("CREATE TABLE tbl0005 (a text)")
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con.commit()
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backup_id = self.backup_node(backup_dir, 'node', node)
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node.pgbench_init(scale=2)
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pgbench = node.pgbench(
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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options=["-c", "4", "-T", "10"]
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)
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pgbench.wait()
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pgbench.stdout.close()
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target_time = self.show_pb(backup_dir, 'node', backup_id)['recovery-time']
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after_backup_time = datetime.now().replace(second=0, microsecond=0)
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# Validate to real time
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self.assertIn("INFO: backup validation completed successfully",
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self.validate_pb(backup_dir, 'node', options=["--time='{0}'".format(target_time)]),
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'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(self.output), self.cmd))
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# Validate to unreal time
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unreal_time_1 = after_backup_time - timedelta(days=2)
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try:
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self.validate_pb(backup_dir, 'node', options=["--time='{0}'".format(unreal_time_1)])
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self.assertEqual(1, 0, "Expecting Error because of validation to unreal time.\n Output: {0} \n CMD: {1}".format(
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repr(self.output), self.cmd))
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except ProbackupException as e:
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self.assertEqual(e.message, 'ERROR: Full backup satisfying target options is not found.\n',
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'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(e.message), self.cmd))
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# Validate to unreal time #2
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unreal_time_2 = after_backup_time + timedelta(days=2)
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try:
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self.validate_pb(backup_dir, 'node', options=["--time='{0}'".format(unreal_time_2)])
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self.assertEqual(1, 0, "Expecting Error because of validation to unreal time.\n Output: {0} \n CMD: {1}".format(
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repr(self.output), self.cmd))
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except ProbackupException as e:
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self.assertTrue('ERROR: not enough WAL records to time' in e.message,
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'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(e.message), self.cmd))
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# Validate to real xid
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target_xid = None
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with node.connect("postgres") as con:
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res = con.execute("INSERT INTO tbl0005 VALUES ('inserted') RETURNING (xmin)")
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con.commit()
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target_xid = res[0][0]
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node.execute("postgres", "SELECT pg_switch_xlog()")
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self.assertIn("INFO: backup validation completed successfully",
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self.validate_pb(backup_dir, 'node', options=["--xid={0}".format(target_xid)]),
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'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(self.output), self.cmd))
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# Validate to unreal xid
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unreal_xid = int(target_xid) + 1000
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try:
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self.validate_pb(backup_dir, 'node', options=["--xid={0}".format(unreal_xid)])
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self.assertEqual(1, 0, "Expecting Error because of validation to unreal xid.\n Output: {0} \n CMD: {1}".format(
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repr(self.output), self.cmd))
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except ProbackupException as e:
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self.assertTrue('ERROR: not enough WAL records to xid' in e.message,
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'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(e.message), self.cmd))
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# Validate with backup ID
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self.assertIn("INFO: backup validation completed successfully",
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self.validate_pb(backup_dir, 'node', backup_id),
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'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(self.output), self.cmd))
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# Clean after yourself
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self.del_test_dir(self.module_name, fname)
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# @unittest.skip("skip")
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def test_validate_corrupt_wal_1(self):
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"""make archive node, make archive backup, corrupt all wal files, run validate, expect errors"""
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fname = self.id().split('.')[3]
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node = self.make_simple_node(base_dir="{0}/{1}/node".format(self.module_name, fname),
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initdb_params=['--data-checksums'],
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pg_options={'wal_level': 'replica'}
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)
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backup_dir = os.path.join(self.tmp_path, self.module_name, fname, 'backup')
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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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with node.connect("postgres") as con:
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con.execute("CREATE TABLE tbl0005 (a text)")
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con.commit()
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backup_id = self.backup_node(backup_dir, 'node', node)
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# Corrupt WAL
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wals_dir = os.path.join(backup_dir, 'wal', 'node')
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wals = [f for f in os.listdir(wals_dir) if os.path.isfile(os.path.join(wals_dir, f)) and not f.endswith('.backup')]
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wals.sort()
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for wal in wals:
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with open(os.path.join(wals_dir, wal), "rb+", 0) as f:
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f.seek(42)
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f.write(b"blablablaadssaaaaaaaaaaaaaaa")
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f.flush()
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f.close
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# Simple validate
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try:
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self.validate_pb(backup_dir, 'node')
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self.assertEqual(1, 0, "Expecting Error because of wal segments corruption.\n Output: {0} \n CMD: {1}".format(
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repr(self.output), self.cmd))
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except ProbackupException as e:
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self.assertTrue('Possible WAL CORRUPTION' in e.message),
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'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(e.message), self.cmd)
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self.assertEqual('CORRUPT', self.show_pb(backup_dir, 'node', backup_id)['status'], 'Backup STATUS should be "CORRUPT"')
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# Clean after yourself
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self.del_test_dir(self.module_name, fname)
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# @unittest.skip("skip")
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def test_validate_corrupt_wal_2(self):
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"""make archive node, make full backup, corrupt all wal files, run validate to real xid, expect errors"""
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fname = self.id().split('.')[3]
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node = self.make_simple_node(base_dir="{0}/{1}/node".format(self.module_name, fname),
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initdb_params=['--data-checksums'],
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pg_options={'wal_level': 'replica'}
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)
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backup_dir = os.path.join(self.tmp_path, self.module_name, fname, 'backup')
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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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with node.connect("postgres") as con:
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con.execute("CREATE TABLE tbl0005 (a text)")
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con.commit()
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backup_id = self.backup_node(backup_dir, 'node', node)
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target_xid = None
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with node.connect("postgres") as con:
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res = con.execute("INSERT INTO tbl0005 VALUES ('inserted') RETURNING (xmin)")
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con.commit()
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target_xid = res[0][0]
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# Corrupt WAL
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wals_dir = os.path.join(backup_dir, 'wal', 'node')
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wals = [f for f in os.listdir(wals_dir) if os.path.isfile(os.path.join(wals_dir, f)) and not f.endswith('.backup')]
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wals.sort()
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for wal in wals:
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with open(os.path.join(wals_dir, wal), "rb+", 0) as f:
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f.seek(0)
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f.write(b"blablablaadssaaaaaaaaaaaaaaa")
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f.flush()
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f.close
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# Validate to xid
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try:
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self.validate_pb(backup_dir, 'node', backup_id, options=['--xid={0}'.format(target_xid)])
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self.assertEqual(1, 0, "Expecting Error because of wal segments corruption.\n Output: {0} \n CMD: {1}".format(
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repr(self.output), self.cmd))
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except ProbackupException as e:
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self.assertTrue('Possible WAL CORRUPTION' in e.message),
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'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(e.message), self.cmd)
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self.assertEqual('CORRUPT', self.show_pb(backup_dir, 'node', backup_id)['status'], 'Backup STATUS should be "CORRUPT"')
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# Clean after yourself
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self.del_test_dir(self.module_name, fname)
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# @unittest.skip("skip")
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def test_validate_wal_lost_segment_1(self):
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"""make archive node, make archive full backup,
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delete from archive wal segment which belong to previous backup
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run validate, expecting error because of missing wal segment
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make sure that backup status is 'CORRUPT'
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"""
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fname = self.id().split('.')[3]
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node = self.make_simple_node(base_dir="{0}/{1}/node".format(self.module_name, fname),
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initdb_params=['--data-checksums'],
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pg_options={'wal_level': 'replica'}
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)
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backup_dir = os.path.join(self.tmp_path, self.module_name, fname, 'backup')
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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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node.pgbench_init(scale=2)
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pgbench = node.pgbench(
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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options=["-c", "4", "-T", "10"]
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)
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pgbench.wait()
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pgbench.stdout.close()
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backup_id = self.backup_node(backup_dir, 'node', node)
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# Delete wal segment
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wals_dir = os.path.join(backup_dir, 'wal', 'node')
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wals = [f for f in os.listdir(wals_dir) if os.path.isfile(os.path.join(wals_dir, f)) and not f.endswith('.backup')]
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file = os.path.join(backup_dir, 'wal', 'node', wals[1])
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os.remove(file)
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try:
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self.validate_pb(backup_dir, 'node')
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self.assertEqual(1, 0, "Expecting Error because of wal segment disappearance.\n Output: {0} \n CMD: {1}".format(
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repr(self.output), self.cmd))
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except ProbackupException as e:
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self.assertIn('WARNING: WAL segment "{0}" is absent\nERROR: there are not enough WAL records to restore'.format(
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file), e.message, '\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(e.message), self.cmd))
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self.assertEqual('CORRUPT', self.show_pb(backup_dir, 'node', backup_id)['status'], 'Backup {0} should have STATUS "CORRUPT"')
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# Be paranoid and run validate again
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try:
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self.validate_pb(backup_dir, 'node')
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self.assertEqual(1, 0, "Expecting Error because of backup corruption.\n Output: {0} \n CMD: {1}".format(
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repr(self.output), self.cmd))
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except ProbackupException as e:
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self.assertIn('INFO: Backup {0} has status CORRUPT. Skip validation.\n'.format(backup_id), e.message,
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'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(e.message), self.cmd))
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# Clean after yourself
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self.del_test_dir(self.module_name, fname)
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# @unittest.skip("skip")
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def test_validate_wal_lost_segment_2(self):
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"""
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make node with archiving
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make archive backup
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delete from archive wal segment which DO NOT belong to previous backup
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run validate, expecting error because of missing wal segment
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make sure that backup status is 'ERROR'
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"""
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fname = self.id().split('.')[3]
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node = self.make_simple_node(base_dir="{0}/{1}/node".format(self.module_name, fname),
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initdb_params=['--data-checksums'],
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pg_options={'wal_level': 'replica'}
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)
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backup_dir = os.path.join(self.tmp_path, self.module_name, fname, 'backup')
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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.backup_node(backup_dir, 'node', node)
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# make some wals
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node.pgbench_init(scale=2)
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pgbench = node.pgbench(
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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options=["-c", "4", "-T", "10"]
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)
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pgbench.wait()
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pgbench.stdout.close()
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# delete last wal segment
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wals_dir = os.path.join(backup_dir, 'wal', 'node')
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wals = [f for f in os.listdir(wals_dir) if os.path.isfile(os.path.join(wals_dir, f)) and not f.endswith('.backup')]
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wals = map(int, wals)
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file = os.path.join(wals_dir, '0000000' + str(max(wals)))
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os.remove(file)
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try:
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backup_id = self.backup_node(backup_dir, 'node', node, backup_type='page')
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self.assertEqual(1, 0, "Expecting Error because of wal segment disappearance.\n Output: {0} \n CMD: {1}".format(
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self.output, self.cmd))
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except ProbackupException as e:
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self.assertTrue('INFO: wait for LSN' in e.message
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and 'in archived WAL segment' in e.message
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and 'WARNING: could not read WAL record at' in e.message
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and 'ERROR: WAL segment "{0}" is absent\n'.format(file) in e.message,
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'\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(e.message), self.cmd))
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self.assertEqual('ERROR', self.show_pb(backup_dir, 'node')[1]['Status'], 'Backup {0} should have STATUS "ERROR"')
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# Clean after yourself
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self.del_test_dir(self.module_name, fname)
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