mirror of
https://github.com/postgrespro/pg_probackup.git
synced 2024-12-09 11:25:38 +02:00
95 lines
2.8 KiB
Python
95 lines
2.8 KiB
Python
import unittest
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from os import path, listdir
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import six
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from .pb_lib import ProbackupTest
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from datetime import datetime, timedelta
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from testgres import stop_all
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import subprocess
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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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@classmethod
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def tearDownClass(cls):
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try:
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stop_all()
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except:
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pass
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def test_validate_wal_1(self):
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"""recovery to latest from full backup"""
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node = self.make_bnode('test_validate_wal_1', base_dir="tmp_dirs/validate/wal_1")
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node.start()
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self.assertEqual(self.init_pb(node), six.b(""))
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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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with open(path.join(node.logs_dir, "backup_1.log"), "wb") as backup_log:
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backup_log.write(self.backup_pb(node, options=["--verbose"]))
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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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# Save time to validate
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target_time = datetime.now()
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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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node.stop({"-m": "immediate"})
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id_backup = self.show_pb(node)[0].id
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# Validate to real time
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self.assertIn(six.b("INFO: Backup validation stopped on"),
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self.validate_pb(node, options=["--time='{:%Y-%m-%d %H:%M:%S}'".format(
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target_time)]))
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# Validate to unreal time
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self.assertIn(six.b("ERROR: no full backup found, cannot validate."),
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self.validate_pb(node, options=["--time='{:%Y-%m-%d %H:%M:%S}'".format(
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target_time - timedelta(days=2))]))
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# Validate to unreal time #2
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self.assertIn(six.b("ERROR: there are no WAL records to time"),
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self.validate_pb(node, options=["--time='{:%Y-%m-%d %H:%M:%S}'".format(
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target_time + timedelta(days=2))]))
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# Validate to real xid
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self.assertIn(six.b("INFO: Backup validation stopped on"),
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self.validate_pb(node, options=["--xid=%s" % target_xid]))
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# Validate to unreal xid
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self.assertIn(six.b("ERROR: there are no WAL records to xid"),
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self.validate_pb(node, options=["--xid=%d" % (int(target_xid) + 1000)]))
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# Validate with backup ID
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self.assertIn(six.b("INFO: Backup validation stopped on"),
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self.validate_pb(node, id_backup))
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# Validate broken WAL
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wals_dir = path.join(self.backup_dir(node), "wal")
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wals = [f for f in listdir(wals_dir) if path.isfile(path.join(wals_dir, f))]
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wals.sort()
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with open(path.join(wals_dir, wals[-3]), "rb+") as f:
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f.seek(256)
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f.write(six.b("blablabla"))
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res = self.validate_pb(node, id_backup, options=['--xid=%s' % target_xid])
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self.assertIn(six.b("there are no WAL records to xid"), res)
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