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tests: added tests.merge.MergeTest.test_crash_after_opening_backup_control_2

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Grigory Smolkin 2019-03-09 13:36:21 +03:00 committed by Arthur Zakirov
parent 596f82faa2
commit 58de0dbd35
1 changed files with 84 additions and 1 deletions
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85
tests/merge.py
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@ -1411,7 +1411,7 @@ class MergeTest(ProbackupTest, unittest.TestCase):
self.del_test_dir(module_name, fname)
def test_crash_after_opening_backup_control(self):
def test_crash_after_opening_backup_control_1(self):
"""
check that crashing after opening backup.control
for writing will not result in losing backup metadata
@ -1461,6 +1461,89 @@ class MergeTest(ProbackupTest, unittest.TestCase):
self.del_test_dir(module_name, fname)
def test_crash_after_opening_backup_control_2(self):
"""
check that crashing after opening backup_content.control
for writing will not result in losing metadata about backup files
"""
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()
# Add data
node.pgbench_init(scale=3)
# FULL backup
full_id = self.backup_node(
backup_dir, 'node', node, options=['--stream'])
# Change data
pgbench = node.pgbench(options=['-T', '20', '-c', '2', '--no-vacuum'])
pgbench.wait()
path = node.safe_psql(
'postgres',
"select pg_relation_filepath('pgbench_accounts')").rstrip()
vm_path = path + '_vm'
print(vm_path)
# DELTA backup
backup_id = self.backup_node(
backup_dir, 'node', node, backup_type='delta')
pgdata = self.pgdata_content(node.data_dir)
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('print_file_list')
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'])
# In to_backup drop file that comes from from_backup
os.remove(
os.path.join(
backup_dir, 'backups', 'node',
full_id, 'database', vm_path))
# Continue failed merge
self.merge_backup(backup_dir, "node", backup_id)
node.cleanup()
# restore merge backup
self.restore_node(backup_dir, 'node', node)
pgdata_restored = self.pgdata_content(node.data_dir)
self.compare_pgdata(pgdata, pgdata_restored)
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