mirror of
https://github.com/postgrespro/pg_probackup.git
synced 2024-12-01 09:51:43 +02:00
250 lines
9.6 KiB
Python
250 lines
9.6 KiB
Python
import unittest
|
|
import os
|
|
import six
|
|
from .ptrack_helpers import ProbackupTest, ProbackupException
|
|
from datetime import datetime, timedelta
|
|
from testgres import stop_all
|
|
import subprocess
|
|
from sys import exit
|
|
|
|
|
|
class ValidateTest(ProbackupTest, unittest.TestCase):
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
super(ValidateTest, self).__init__(*args, **kwargs)
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
stop_all()
|
|
|
|
# @unittest.skip("skip")
|
|
# @unittest.expectedFailure
|
|
def test_validate_wal_unreal_values(self):
|
|
"""recovery to latest from full backup"""
|
|
fname = self.id().split('.')[3]
|
|
node = self.make_simple_node(base_dir="tmp_dirs/validate/{0}".format(fname),
|
|
set_archiving=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={'wal_level': 'replica'}
|
|
)
|
|
|
|
node.start()
|
|
self.assertEqual(self.init_pb(node), six.b(""))
|
|
node.pgbench_init(scale=2)
|
|
with node.connect("postgres") as con:
|
|
con.execute("CREATE TABLE tbl0005 (a text)")
|
|
con.commit()
|
|
|
|
self.backup_pb(node)
|
|
|
|
node.pgbench_init(scale=2)
|
|
pgbench = node.pgbench(
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.STDOUT,
|
|
options=["-c", "4", "-T", "10"]
|
|
)
|
|
|
|
pgbench.wait()
|
|
pgbench.stdout.close()
|
|
|
|
backup_id = self.show_pb(node)[0]['ID']
|
|
target_time = self.show_pb(node)[0]['Recovery time']
|
|
after_backup_time = datetime.now()
|
|
|
|
# Validate to real time
|
|
self.assertIn(six.b("INFO: backup validation completed successfully on"),
|
|
self.validate_pb(node, options=["--time='{0}'".format(target_time)]))
|
|
|
|
# Validate to unreal time
|
|
try:
|
|
self.validate_pb(node, options=["--time='{:%Y-%m-%d %H:%M:%S}'".format(
|
|
after_backup_time - timedelta(days=2))])
|
|
# we should die here because exception is what we expect to happen
|
|
self.assertEqual(1, 0, "Error in validation is expected because of validation of unreal time")
|
|
except ProbackupException, e:
|
|
self.assertEqual(
|
|
e.message,
|
|
'ERROR: Full backup satisfying target options is not found.\n')
|
|
|
|
# Validate to unreal time #2
|
|
try:
|
|
self.validate_pb(node, options=["--time='{:%Y-%m-%d %H:%M:%S}'".format(
|
|
after_backup_time + timedelta(days=2))])
|
|
self.assertEqual(1, 0, "Error in validation is expected because of validation unreal time")
|
|
except ProbackupException, e:
|
|
self.assertEqual(True, 'ERROR: not enough WAL records to time' in e.message)
|
|
|
|
# Validate to real xid
|
|
target_xid = None
|
|
with node.connect("postgres") as con:
|
|
res = con.execute("INSERT INTO tbl0005 VALUES ('inserted') RETURNING (xmin)")
|
|
con.commit()
|
|
target_xid = res[0][0]
|
|
node.execute("postgres", "SELECT pg_switch_xlog()")
|
|
|
|
self.assertIn(six.b("INFO: backup validation completed successfully on"),
|
|
self.validate_pb(node, options=["--xid=%s" % target_xid]))
|
|
|
|
# Validate to unreal xid
|
|
try:
|
|
self.validate_pb(node, options=["--xid=%d" % (int(target_xid) + 1000)])
|
|
self.assertEqual(1, 0, "Error in validation is expected because of validation of unreal xid")
|
|
except ProbackupException, e:
|
|
self.assertEqual(True, 'ERROR: not enough WAL records to xid' in e.message)
|
|
|
|
# Validate with backup ID
|
|
self.assertIn(six.b("INFO: backup validation completed successfully on"),
|
|
self.validate_pb(node, backup_id))
|
|
|
|
def test_validate_broken_wal_1(self):
|
|
"""recovery to latest from full backup"""
|
|
fname = self.id().split('.')[3]
|
|
node = self.make_simple_node(base_dir="tmp_dirs/validate/{0}".format(fname),
|
|
set_archiving=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={'wal_level': 'replica'}
|
|
)
|
|
|
|
node.start()
|
|
self.assertEqual(self.init_pb(node), six.b(""))
|
|
with node.connect("postgres") as con:
|
|
con.execute("CREATE TABLE tbl0005 (a text)")
|
|
con.commit()
|
|
|
|
backup_id = self.backup_pb(node)
|
|
|
|
# Corrupt WAL
|
|
wals_dir = os.path.join(self.backup_dir(node), "wal")
|
|
wals = [f for f in os.listdir(wals_dir) if os.path.isfile(os.path.join(wals_dir, f)) and not f.endswith('.backup')]
|
|
wals.sort()
|
|
for wal in wals:
|
|
f = open(os.path.join(wals_dir, wal), "rb+")
|
|
f.seek(256)
|
|
f.write(six.b("blablabla"))
|
|
f.close
|
|
|
|
# Simple validate
|
|
try:
|
|
self.validate_pb(node)
|
|
self.assertEqual(1, 0, "Expecting Error because of wal corruption. THIS IS BAD")
|
|
except ProbackupException, e:
|
|
self.assertEqual(True, 'Possible WAL CORRUPTION' in e.message)
|
|
|
|
self.assertEqual('CORRUPT', self.show_pb(node, id=backup_id)['status'], 'Backup STATUS should be "CORRUPT"')
|
|
|
|
node.stop()
|
|
|
|
def test_validate_broken_wal_2(self):
|
|
"""recovery to latest from full backup"""
|
|
fname = self.id().split('.')[3]
|
|
node = self.make_simple_node(base_dir="tmp_dirs/validate/{0}".format(fname),
|
|
set_archiving=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={'wal_level': 'replica'}
|
|
)
|
|
|
|
node.start()
|
|
self.assertEqual(self.init_pb(node), six.b(""))
|
|
with node.connect("postgres") as con:
|
|
con.execute("CREATE TABLE tbl0005 (a text)")
|
|
con.commit()
|
|
|
|
backup_id = self.backup_pb(node)
|
|
target_xid = None
|
|
with node.connect("postgres") as con:
|
|
res = con.execute("INSERT INTO tbl0005 VALUES ('inserted') RETURNING (xmin)")
|
|
con.commit()
|
|
target_xid = res[0][0]
|
|
node.execute("postgres", "SELECT pg_switch_xlog()")
|
|
|
|
# Corrupt WAL
|
|
wals_dir = os.path.join(self.backup_dir(node), "wal")
|
|
wals = [f for f in os.listdir(wals_dir) if os.path.isfile(os.path.join(wals_dir, f)) and not f.endswith('.backup')]
|
|
wals.sort()
|
|
for wal in wals:
|
|
f = open(os.path.join(wals_dir, wal), "rb+")
|
|
f.seek(256)
|
|
f.write(six.b("blablabla"))
|
|
f.close
|
|
|
|
# Simple validate
|
|
try:
|
|
self.validate_pb(node, backup_id, options=['--xid=%s' % target_xid])
|
|
self.assertEqual(1, 0, "Expecting Error because of wal corruption. THIS IS BAD")
|
|
except ProbackupException, e:
|
|
self.assertEqual(True, 'Possible WAL CORRUPTION' in e.message)
|
|
|
|
self.assertEqual('CORRUPT', self.show_pb(node, id=backup_id)['status'], 'Backup STATUS should be "CORRUPT"')
|
|
node.stop()
|
|
|
|
def test_validate_wal_lost_segment_1(self):
|
|
"""Loose segment which belong to some backup"""
|
|
fname = self.id().split('.')[3]
|
|
node = self.make_simple_node(base_dir="tmp_dirs/validate/{0}".format(fname),
|
|
set_archiving=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={'wal_level': 'replica'}
|
|
)
|
|
|
|
node.start()
|
|
self.assertEqual(self.init_pb(node), six.b(""))
|
|
node.pgbench_init(scale=2)
|
|
pgbench = node.pgbench(
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.STDOUT,
|
|
options=["-c", "4", "-T", "10"]
|
|
)
|
|
pgbench.wait()
|
|
pgbench.stdout.close()
|
|
backup_id = self.backup_pb(node, backup_type='full')
|
|
|
|
# Delete wal segment
|
|
wals_dir = os.path.join(self.backup_dir(node), "wal")
|
|
wals = [f for f in os.listdir(wals_dir) if os.path.isfile(os.path.join(wals_dir, f)) and not f.endswith('.backup')]
|
|
os.remove(os.path.join(self.backup_dir(node), "wal", wals[1]))
|
|
try:
|
|
self.validate_pb(node)
|
|
self.assertEqual(1, 0, "Expecting Error because of wal segment disappearance")
|
|
except ProbackupException, e:
|
|
self.assertEqual(True, 'is absent' in e.message)
|
|
|
|
self.assertEqual('CORRUPT', self.show_pb(node, id=backup_id)['status'], 'Backup STATUS should be "CORRUPT"')
|
|
node.stop()
|
|
|
|
def test_validate_wal_lost_segment_2(self):
|
|
"""Loose segment located between backups"""
|
|
fname = self.id().split('.')[3]
|
|
node = self.make_simple_node(base_dir="tmp_dirs/validate/{0}".format(fname),
|
|
set_archiving=True,
|
|
initdb_params=['--data-checksums'],
|
|
pg_options={'wal_level': 'replica'}
|
|
)
|
|
|
|
node.start()
|
|
self.assertEqual(self.init_pb(node), six.b(""))
|
|
self.backup_pb(node, backup_type='full')
|
|
|
|
# make some wals
|
|
node.pgbench_init(scale=2)
|
|
pgbench = node.pgbench(
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.STDOUT,
|
|
options=["-c", "4", "-T", "10"]
|
|
)
|
|
pgbench.wait()
|
|
pgbench.stdout.close()
|
|
|
|
# delete last wal segment
|
|
wals_dir = os.path.join(self.backup_dir(node), "wal")
|
|
wals = [f for f in os.listdir(wals_dir) if os.path.isfile(os.path.join(wals_dir, f)) and not f.endswith('.backup')]
|
|
wals = map(int, wals)
|
|
os.remove(os.path.join(self.backup_dir(node), "wal", '0000000' + str(max(wals))))
|
|
|
|
# Need more accurate error message about loosing wal segment between backups
|
|
try:
|
|
self.backup_pb(node, backup_type='page')
|
|
self.assertEqual(1, 0, "Expecting Error in PAGE backup because of wal segment disappearance")
|
|
except ProbackupException, e:
|
|
self.assertEqual(True, 'could not read WAL record' in e.message)
|
|
node.stop()
|