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tests: added tests.merge.MergeTest.test_crash_after_opening_backup_control

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This commit is contained in:
Grigory Smolkin 2019-03-09 12:43:04 +03:00
parent a1404d86b5
commit edcdbf5eb3
1 changed files with 50 additions and 0 deletions
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50
tests/merge.py
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@ -1369,6 +1369,56 @@ class MergeTest(ProbackupTest, unittest.TestCase):
self.del_test_dir(module_name, fname)
def test_crash_after_opening_backup_control(self):
"""
check that crashing after opening backup.control
for writing will not result in losing backup metadata
"""
fname = self.id().split('.')[3]
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
set_replication=True,
initdb_params=['--data-checksums'])
self.init_pb(backup_dir)
self.add_instance(backup_dir, 'node', node)
self.set_archiving(backup_dir, 'node', node)
node.slow_start()
# FULL stream backup
self.backup_node(
backup_dir, 'node', node, options=['--stream'])
# DELTA archive backup
backup_id = self.backup_node(
backup_dir, 'node', node, backup_type='delta')
print(self.show_pb(
backup_dir, 'node', as_json=False, as_text=True))
gdb = self.merge_backup(backup_dir, "node", backup_id, gdb=True)
gdb.set_breakpoint('write_backup_filelist')
gdb.run_until_break()
gdb.set_breakpoint('write_backup')
gdb.continue_execution_until_break()
gdb.set_breakpoint('pgBackupWriteControl')
gdb.continue_execution_until_break()
gdb._execute('signal SIGKILL')
print(self.show_pb(
backup_dir, 'node', as_json=False, as_text=True))
self.assertEqual(
'MERGING', self.show_pb(backup_dir, 'node')[0]['status'])
self.assertEqual(
'MERGING', self.show_pb(backup_dir, 'node')[1]['status'])
self.del_test_dir(module_name, fname)
# 1. always use parent link when merging (intermediates may be from different chain)
# 2. page backup we are merging with may disappear after failed merge,
# it should not be possible to continue merge after that