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PGPRO-427: added test_page_backup_with_corrupted_wal_segment

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This commit is contained in:
Grigory Smolkin 2018-08-15 17:38:44 +03:00
parent 248c4493dc
commit 6e856bd877
1 changed files with 97 additions and 0 deletions
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97
tests/page.py
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@ -722,6 +722,103 @@ class PageBackupTest(ProbackupTest, unittest.TestCase):
self.show_pb(backup_dir, 'node')[1]['status'],
'Backup {0} should have STATUS "ERROR"')
# Multi-thread PAGE backup
try:
self.backup_node(
backup_dir, 'node', node,
backup_type='page',
options=["-j", "4", '--log-level-file=verbose'])
self.assertEqual(
1, 0,
"Expecting Error because of wal segment disappearance.\n "
"Output: {0} \n CMD: {1}".format(
self.output, self.cmd))
except ProbackupException as e:
self.assertTrue(
'INFO: Wait for LSN' in e.message and
'in archived WAL segment' in e.message and
'WARNING: could not read WAL record at' in e.message and
'ERROR: WAL segment "{0}" is absent\n'.format(
file) in e.message,
'\n Unexpected Error Message: {0}\n CMD: {1}'.format(
repr(e.message), self.cmd))
self.assertEqual(
'ERROR',
self.show_pb(backup_dir, 'node')[2]['status'],
'Backup {0} should have STATUS "ERROR"')
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_page_backup_with_corrupted_wal_segment(self):
"""
make node with archiving
make archive backup, then generate some wals with pgbench,
corrupt latest archived wal segment
run page backup, expecting error because of missing wal segment
make sure that backup status is 'ERROR'
"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir="{0}/{1}/node".format(module_name, fname),
initdb_params=['--data-checksums'],
pg_options={'wal_level': 'replica'}
)
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
self.init_pb(backup_dir)
self.add_instance(backup_dir, 'node', node)
self.set_archiving(backup_dir, 'node', node)
node.start()
self.backup_node(backup_dir, 'node', node)
# make some wals
node.pgbench_init(scale=3)
# delete last wal segment
wals_dir = os.path.join(backup_dir, 'wal', 'node')
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(str, wals)
file = os.path.join(wals_dir, max(wals))
# file = os.path.join(wals_dir, '000000010000000000000004')
print(file)
with open(file, "rb+", 0) as f:
f.seek(42)
f.write(b"blah")
f.flush()
f.close
if self.archive_compress:
file = file[:-3]
# Single-thread PAGE backup
try:
self.backup_node(
backup_dir, 'node', node,
backup_type='page', options=['--log-level-file=verbose'])
self.assertEqual(
1, 0,
"Expecting Error because of wal segment disappearance.\n "
"Output: {0} \n CMD: {1}".format(
self.output, self.cmd))
except ProbackupException as e:
self.assertTrue(
'INFO: Wait for LSN' in e.message and
'in archived WAL segment' in e.message and
'WARNING: could not read WAL record at' in e.message and
'ERROR: WAL segment "{0}" is absent\n'.format(
file) in e.message,
'\n Unexpected Error Message: {0}\n CMD: {1}'.format(
repr(e.message), self.cmd))
self.assertEqual(
'ERROR',
self.show_pb(backup_dir, 'node')[1]['status'],
'Backup {0} should have STATUS "ERROR"')
# Multi-thread PAGE backup
try:
self.backup_node(