import unittest
import os
from time import sleep
from .helpers.ptrack_helpers import ProbackupTest, ProbackupException
from .helpers.cfs_helpers import find_by_name
module_name = 'backup'
class BackupTest(ProbackupTest, unittest.TestCase):
# @unittest.skip("skip")
# @unittest.expectedFailure
# PGPRO-707
def test_backup_modes_archive(self):
"""standart backup modes with ARCHIVE WAL method"""
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',
'ptrack_enable': 'on'}
)
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()
backup_id = self.backup_node(backup_dir, 'node', node)
show_backup = self.show_pb(backup_dir, 'node')[0]
self.assertEqual(show_backup['status'], "OK")
self.assertEqual(show_backup['backup-mode'], "FULL")
# postmaster.pid and postmaster.opts shouldn't be copied
excluded = True
db_dir = os.path.join(
backup_dir, "backups", 'node', backup_id, "database")
for f in os.listdir(db_dir):
if (
os.path.isfile(os.path.join(db_dir, f)) and
(
f == "postmaster.pid" or
f == "postmaster.opts"
)
):
excluded = False
self.assertEqual(excluded, True)
# page backup mode
page_backup_id = self.backup_node(
backup_dir, 'node', node, backup_type="page")
# print self.show_pb(node)
show_backup = self.show_pb(backup_dir, 'node')[1]
self.assertEqual(show_backup['status'], "OK")
self.assertEqual(show_backup['backup-mode'], "PAGE")
# Check parent backup
self.assertEqual(
backup_id,
self.show_pb(
backup_dir, 'node',
backup_id=show_backup['id'])["parent-backup-id"])
# ptrack backup mode
self.backup_node(backup_dir, 'node', node, backup_type="ptrack")
show_backup = self.show_pb(backup_dir, 'node')[2]
self.assertEqual(show_backup['status'], "OK")
self.assertEqual(show_backup['backup-mode'], "PTRACK")
# Check parent backup
self.assertEqual(
page_backup_id,
self.show_pb(
backup_dir, 'node',
backup_id=show_backup['id'])["parent-backup-id"])
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_smooth_checkpoint(self):
"""full backup with smooth checkpoint"""
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,
options=["-C"])
self.assertEqual(self.show_pb(backup_dir, 'node')[0]['status'], "OK")
node.stop()
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_incremental_backup_without_full(self):
"""page-level backup without validated full backup"""
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', 'ptrack_enable': 'on'}
)
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()
try:
self.backup_node(backup_dir, 'node', node, backup_type="page")
# we should die here because exception is what we expect to happen
self.assertEqual(
1, 0,
"Expecting Error because page backup should not be possible "
"without valid full backup.\n Output: {0} \n CMD: {1}".format(
repr(self.output), self.cmd))
except ProbackupException as e:
self.assertIn(
"ERROR: Valid backup on current timeline is not found. "
"Create new FULL backup before an incremental one.",
e.message,
"\n Unexpected Error Message: {0}\n CMD: {1}".format(
repr(e.message), self.cmd))
sleep(1)
try:
self.backup_node(backup_dir, 'node', node, backup_type="ptrack")
# we should die here because exception is what we expect to happen
self.assertEqual(
1, 0,
"Expecting Error because page backup should not be possible "
"without valid full backup.\n Output: {0} \n CMD: {1}".format(
repr(self.output), self.cmd))
except ProbackupException as e:
self.assertIn(
"ERROR: Valid backup on current timeline is not found. "
"Create new FULL backup before an incremental one.",
e.message,
"\n Unexpected Error Message: {0}\n CMD: {1}".format(
repr(e.message), self.cmd))
self.assertEqual(
self.show_pb(backup_dir, 'node')[0]['status'],
"ERROR")
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_incremental_backup_corrupt_full(self):
"""page-level backup with corrupted full backup"""
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', 'ptrack_enable': 'on'}
)
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()
backup_id = self.backup_node(backup_dir, 'node', node)
file = os.path.join(
backup_dir, "backups", "node", backup_id,
"database", "postgresql.conf")
os.remove(file)
try:
self.validate_pb(backup_dir, 'node')
# we should die here because exception is what we expect to happen
self.assertEqual(
1, 0,
"Expecting Error because of validation of corrupted backup.\n"
" Output: {0} \n CMD: {1}".format(
repr(self.output), self.cmd))
except ProbackupException as e:
self.assertTrue(
"INFO: Validate backups of the instance 'node'\n" in e.message and
"WARNING: Backup file \"{0}\" is not found\n".format(
file) in e.message and
"WARNING: Backup {0} data files are corrupted\n".format(
backup_id) in e.message and
"WARNING: Some backups are not valid\n" in e.message,
"\n Unexpected Error Message: {0}\n CMD: {1}".format(
repr(e.message), self.cmd))
try:
self.backup_node(backup_dir, 'node', node, backup_type="page")
# we should die here because exception is what we expect to happen
self.assertEqual(
1, 0,
"Expecting Error because page backup should not be possible "
"without valid full backup.\n Output: {0} \n CMD: {1}".format(
repr(self.output), self.cmd))
except ProbackupException as e:
self.assertIn(
"ERROR: Valid backup on current timeline is not found. "
"Create new FULL backup before an incremental one.",
e.message,
"\n Unexpected Error Message: {0}\n CMD: {1}".format(
repr(e.message), self.cmd))
self.assertEqual(
self.show_pb(backup_dir, 'node', backup_id)['status'], "CORRUPT")
self.assertEqual(
self.show_pb(backup_dir, 'node')[1]['status'], "ERROR")
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_ptrack_threads(self):
"""ptrack multi thread backup mode"""
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', 'ptrack_enable': 'on'}
)
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,
backup_type="full", options=["-j", "4"])
self.assertEqual(self.show_pb(backup_dir, 'node')[0]['status'], "OK")
self.backup_node(
backup_dir, 'node', node,
backup_type="ptrack", options=["-j", "4"])
self.assertEqual(self.show_pb(backup_dir, 'node')[0]['status'], "OK")
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_ptrack_threads_stream(self):
"""ptrack multi thread backup mode and stream"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir="{0}/{1}/node".format(module_name, fname),
set_replication=True,
initdb_params=['--data-checksums'],
pg_options={
'wal_level': 'replica',
'ptrack_enable': 'on',
'max_wal_senders': '2'}
)
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
self.init_pb(backup_dir)
self.add_instance(backup_dir, 'node', node)
node.start()
self.backup_node(
backup_dir, 'node', node, backup_type="full",
options=["-j", "4", "--stream"])
self.assertEqual(self.show_pb(backup_dir, 'node')[0]['status'], "OK")
self.backup_node(
backup_dir, 'node', node,
backup_type="ptrack", options=["-j", "4", "--stream"])
self.assertEqual(self.show_pb(backup_dir, 'node')[1]['status'], "OK")
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_page_corruption_heal_via_ptrack_1(self):
"""make node, corrupt some page, check that backup failed"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir="{0}/{1}/node".format(module_name, fname),
set_replication=True,
initdb_params=['--data-checksums'],
pg_options={'wal_level': 'replica', 'max_wal_senders': '2'}
)
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
self.init_pb(backup_dir)
self.add_instance(backup_dir, 'node', node)
node.start()
self.backup_node(
backup_dir, 'node', node,
backup_type="full", options=["-j", "4", "--stream"])
node.safe_psql(
"postgres",
"create table t_heap as select 1 as id, md5(i::text) as text, "
"md5(repeat(i::text,10))::tsvector as tsvector "
"from generate_series(0,1000) i")
node.safe_psql(
"postgres",
"CHECKPOINT;")
heap_path = node.safe_psql(
"postgres",
"select pg_relation_filepath('t_heap')").rstrip()
with open(os.path.join(node.data_dir, heap_path), "rb+", 0) as f:
f.seek(9000)
f.write(b"bla")
f.flush()
f.close
self.backup_node(
backup_dir, 'node', node, backup_type="full",
options=["-j", "4", "--stream", "--log-level-file=verbose"])
# open log file and check
with open(os.path.join(backup_dir, 'log', 'pg_probackup.log')) as f:
log_content = f.read()
self.assertIn('block 1, try to fetch via SQL', log_content)
self.assertIn('SELECT pg_catalog.pg_ptrack_get_block', log_content)
f.close
self.assertTrue(
self.show_pb(backup_dir, 'node')[1]['status'] == 'OK',
"Backup Status should be OK")
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_page_corruption_heal_via_ptrack_2(self):
"""make node, corrupt some page, check that backup failed"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir="{0}/{1}/node".format(module_name, fname),
set_replication=True,
initdb_params=['--data-checksums'],
pg_options={'wal_level': 'replica', 'max_wal_senders': '2'}
)
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
self.init_pb(backup_dir)
self.add_instance(backup_dir, 'node', node)
node.start()
self.backup_node(
backup_dir, 'node', node, backup_type="full",
options=["-j", "4", "--stream"])
node.safe_psql(
"postgres",
"create table t_heap as select 1 as id, md5(i::text) as text, "
"md5(repeat(i::text,10))::tsvector as tsvector "
"from generate_series(0,1000) i")
node.safe_psql(
"postgres",
"CHECKPOINT;")
heap_path = node.safe_psql(
"postgres",
"select pg_relation_filepath('t_heap')").rstrip()
node.stop()
with open(os.path.join(node.data_dir, heap_path), "rb+", 0) as f:
f.seek(9000)
f.write(b"bla")
f.flush()
f.close
node.start()
try:
self.backup_node(
backup_dir, 'node', node,
backup_type="full", options=["-j", "4", "--stream"])
# we should die here because exception is what we expect to happen
self.assertEqual(
1, 0,
"Expecting Error because of page "
"corruption in PostgreSQL instance.\n"
" Output: {0} \n CMD: {1}".format(
repr(self.output), self.cmd))
except ProbackupException as e:
self.assertTrue(
"WARNING: File" in e.message and
"blknum" in e.message and
"have wrong checksum" in e.message and
"try to fetch via SQL" in e.message and
"WARNING: page verification failed, "
"calculated checksum" in e.message and
"ERROR: query failed: "
"ERROR: invalid page in block" in e.message and
"query was: SELECT pg_catalog.pg_ptrack_get_block_2" in e.message,
"\n Unexpected Error Message: {0}\n CMD: {1}".format(
repr(e.message), self.cmd))
self.assertTrue(
self.show_pb(backup_dir, 'node')[1]['status'] == 'ERROR',
"Backup Status should be ERROR")
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_tablespace_in_pgdata_pgpro_1376(self):
"""PGPRO-1376 """
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir="{0}/{1}/node".format(module_name, fname),
set_replication=True,
initdb_params=['--data-checksums'],
pg_options={'wal_level': 'replica', 'max_wal_senders': '2'}
)
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
self.init_pb(backup_dir)
self.add_instance(backup_dir, 'node', node)
node.start()
self.create_tblspace_in_node(
node, 'tblspace1',
tblspc_path=(
os.path.join(
node.data_dir, 'somedirectory', '100500'))
)
self.create_tblspace_in_node(
node, 'tblspace2',
tblspc_path=(os.path.join(node.data_dir))
)
node.safe_psql(
"postgres",
"create table t_heap1 tablespace tblspace1 as select 1 as id, "
"md5(i::text) as text, "
"md5(repeat(i::text,10))::tsvector as tsvector "
"from generate_series(0,1000) i")
node.safe_psql(
"postgres",
"create table t_heap2 tablespace tblspace2 as select 1 as id, "
"md5(i::text) as text, "
"md5(repeat(i::text,10))::tsvector as tsvector "
"from generate_series(0,1000) i")
try:
self.backup_node(
backup_dir, 'node', node, backup_type="full",
options=["-j", "4", "--stream"])
# we should die here because exception is what we expect to happen
self.assertEqual(
1, 0,
"Expecting Error because of too many levels "
"of symbolic linking\n"
" Output: {0} \n CMD: {1}".format(
repr(self.output), self.cmd))
except ProbackupException as e:
self.assertTrue(
'Too many levels of symbolic links' in e.message,
"\n Unexpected Error Message: {0}\n CMD: {1}".format(
repr(e.message), self.cmd))
node.safe_psql(
"postgres",
"drop table t_heap2")
node.safe_psql(
"postgres",
"drop tablespace tblspace2")
self.backup_node(
backup_dir, 'node', node, backup_type="full",
options=["-j", "4", "--stream"])
pgdata = self.pgdata_content(node.data_dir)
relfilenode = node.safe_psql(
"postgres",
"select 't_heap1'::regclass::oid"
).rstrip()
list = []
for root, dirs, files in os.walk(backup_dir):
for file in files:
if file == relfilenode:
path = os.path.join(root, file)
list = list + [path]
# We expect that relfilenode occures only once
if len(list) > 1:
message = ""
for string in list:
message = message + string + "\n"
self.assertEqual(
1, 0,
"Following file copied twice by backup:\n {0}".format(
message)
)
node.cleanup()
self.restore_node(
backup_dir, 'node', node, options=["-j", "4"])
if self.paranoia:
pgdata_restored = self.pgdata_content(node.data_dir)
self.compare_pgdata(pgdata, pgdata_restored)
# Clean after yourself
self.del_test_dir(module_name, fname)