db/pg_probackup
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ac017dd8da
pg_probackup/tests/retention.py
Grigory Smolkin b15c7f1587 [Issue #169] test coverage
2020-02-21 22:19:52 +03:00

2868 lines
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import os
import unittest
from datetime import datetime, timedelta
from .helpers.ptrack_helpers import ProbackupTest, ProbackupException
from time import sleep
from distutils.dir_util import copy_tree
module_name = 'retention'
class RetentionTest(ProbackupTest, unittest.TestCase):
# @unittest.skip("skip")
# @unittest.expectedFailure
def test_retention_redundancy_1(self):
"""purge backups using redundancy-based retention policy"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'])
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.slow_start()
self.set_config(
backup_dir, 'node', options=['--retention-redundancy=1'])
# Make backups to be purged
self.backup_node(backup_dir, 'node', node)
self.backup_node(backup_dir, 'node', node, backup_type="page")
# Make backups to be keeped
self.backup_node(backup_dir, 'node', node)
self.backup_node(backup_dir, 'node', node, backup_type="page")
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 4)
output_before = self.show_archive(backup_dir, 'node', tli=1)
# Purge backups
log = self.delete_expired(
backup_dir, 'node', options=['--expired', '--wal'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 2)
output_after = self.show_archive(backup_dir, 'node', tli=1)
self.assertEqual(
output_before['max-segno'],
output_after['max-segno'])
self.assertNotEqual(
output_before['min-segno'],
output_after['min-segno'])
# Check that WAL segments were deleted
min_wal = output_after['min-segno']
max_wal = output_after['max-segno']
for wal_name in os.listdir(os.path.join(backup_dir, 'wal', 'node')):
if not wal_name.endswith(".backup"):
if self.archive_compress:
wal_name = wal_name[-27:]
wal_name = wal_name[:-3]
else:
wal_name = wal_name[-24:]
self.assertTrue(wal_name >= min_wal)
self.assertTrue(wal_name <= max_wal)
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_retention_window_2(self):
"""purge backups using window-based retention policy"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'])
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.slow_start()
with open(
os.path.join(
backup_dir,
'backups',
'node',
"pg_probackup.conf"), "a") as conf:
conf.write("retention-redundancy = 1\n")
conf.write("retention-window = 1\n")
# Make backups to be purged
self.backup_node(backup_dir, 'node', node)
self.backup_node(backup_dir, 'node', node, backup_type="page")
# Make backup to be keeped
self.backup_node(backup_dir, 'node', node)
backups = os.path.join(backup_dir, 'backups', 'node')
days_delta = 5
for backup in os.listdir(backups):
if backup == 'pg_probackup.conf':
continue
with open(
os.path.join(
backups, backup, "backup.control"), "a") as conf:
conf.write("recovery_time='{:%Y-%m-%d %H:%M:%S}'\n".format(
datetime.now() - timedelta(days=days_delta)))
days_delta -= 1
# Make backup to be keeped
self.backup_node(backup_dir, 'node', node, backup_type="page")
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 4)
# Purge backups
self.delete_expired(backup_dir, 'node', options=['--expired'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 2)
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_retention_window_3(self):
"""purge all backups using window-based retention policy"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'])
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.slow_start()
# take FULL BACKUP
backup_id_1 = self.backup_node(backup_dir, 'node', node)
# Take second FULL BACKUP
backup_id_2 = self.backup_node(backup_dir, 'node', node)
# Take third FULL BACKUP
backup_id_3 = self.backup_node(backup_dir, 'node', node)
backups = os.path.join(backup_dir, 'backups', 'node')
for backup in os.listdir(backups):
if backup == 'pg_probackup.conf':
continue
with open(
os.path.join(
backups, backup, "backup.control"), "a") as conf:
conf.write("recovery_time='{:%Y-%m-%d %H:%M:%S}'\n".format(
datetime.now() - timedelta(days=3)))
# Purge backups
self.delete_expired(
backup_dir, 'node', options=['--retention-window=1', '--expired'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 0)
print(self.show_pb(
backup_dir, 'node', as_json=False, as_text=True))
# count wal files in ARCHIVE
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_retention_window_4(self):
"""purge all backups using window-based retention policy"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'])
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.slow_start()
# take FULL BACKUPs
backup_id_1 = self.backup_node(backup_dir, 'node', node)
backup_id_2 = self.backup_node(backup_dir, 'node', node)
backup_id_3 = self.backup_node(backup_dir, 'node', node)
backups = os.path.join(backup_dir, 'backups', 'node')
for backup in os.listdir(backups):
if backup == 'pg_probackup.conf':
continue
with open(
os.path.join(
backups, backup, "backup.control"), "a") as conf:
conf.write("recovery_time='{:%Y-%m-%d %H:%M:%S}'\n".format(
datetime.now() - timedelta(days=3)))
self.delete_pb(backup_dir, 'node', backup_id_2)
self.delete_pb(backup_dir, 'node', backup_id_3)
# Purge backups
self.delete_expired(
backup_dir, 'node',
options=['--retention-window=1', '--expired', '--wal'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 0)
print(self.show_pb(
backup_dir, 'node', as_json=False, as_text=True))
# count wal files in ARCHIVE
wals_dir = os.path.join(backup_dir, 'wal', 'node')
# n_wals = len(os.listdir(wals_dir))
# self.assertTrue(n_wals > 0)
# self.delete_expired(
# backup_dir, 'node',
# options=['--retention-window=1', '--expired', '--wal'])
# count again
n_wals = len(os.listdir(wals_dir))
self.assertTrue(n_wals == 0)
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_window_expire_interleaved_incremental_chains(self):
"""complicated case of interleaved backup chains"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'])
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.slow_start()
# take FULL BACKUPs
backup_id_a = self.backup_node(backup_dir, 'node', node)
backup_id_b = self.backup_node(backup_dir, 'node', node)
# Change FULLb backup status to ERROR
self.change_backup_status(backup_dir, 'node', backup_id_b, 'ERROR')
# FULLb ERROR
# FULLa OK
# Take PAGEa1 backup
page_id_a1 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
# Change FULLb backup status to OK
self.change_backup_status(backup_dir, 'node', backup_id_b, 'OK')
# Change PAGEa1 and FULLa to ERROR
self.change_backup_status(backup_dir, 'node', page_id_a1, 'ERROR')
self.change_backup_status(backup_dir, 'node', backup_id_a, 'ERROR')
# PAGEa1 ERROR
# FULLb OK
# FULLa ERROR
page_id_b1 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# PAGEb1 OK
# PAGEa1 ERROR
# FULLb OK
# FULLa ERROR
# Now we start to play with first generation of PAGE backups
# Change PAGEb1 and FULLb to ERROR
self.change_backup_status(backup_dir, 'node', page_id_b1, 'ERROR')
self.change_backup_status(backup_dir, 'node', backup_id_b, 'ERROR')
# Change PAGEa1 and FULLa to OK
self.change_backup_status(backup_dir, 'node', page_id_a1, 'OK')
self.change_backup_status(backup_dir, 'node', backup_id_a, 'OK')
# PAGEb1 ERROR
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
page_id_a2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# PAGEa2 OK
# PAGEb1 ERROR
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
# Change PAGEa2 and FULLa to ERROR
self.change_backup_status(backup_dir, 'node', page_id_a2, 'ERROR')
self.change_backup_status(backup_dir, 'node', backup_id_a, 'ERROR')
# Change PAGEb1 and FULLb to OK
self.change_backup_status(backup_dir, 'node', page_id_b1, 'OK')
self.change_backup_status(backup_dir, 'node', backup_id_b, 'OK')
# PAGEa2 ERROR
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa ERROR
page_id_b2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# Change PAGEa2 and FULla to OK
self.change_backup_status(backup_dir, 'node', page_id_a2, 'OK')
self.change_backup_status(backup_dir, 'node', backup_id_a, 'OK')
# PAGEb2 OK
# PAGEa2 OK
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa OK
# Purge backups
backups = os.path.join(backup_dir, 'backups', 'node')
for backup in os.listdir(backups):
if backup not in [page_id_a2, page_id_b2, 'pg_probackup.conf']:
with open(
os.path.join(
backups, backup, "backup.control"), "a") as conf:
conf.write("recovery_time='{:%Y-%m-%d %H:%M:%S}'\n".format(
datetime.now() - timedelta(days=3)))
self.delete_expired(
backup_dir, 'node',
options=['--retention-window=1', '--expired'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 6)
print(self.show_pb(
backup_dir, 'node', as_json=False, as_text=True))
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_redundancy_expire_interleaved_incremental_chains(self):
"""complicated case of interleaved backup chains"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'])
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.slow_start()
# take FULL BACKUPs
backup_id_a = self.backup_node(backup_dir, 'node', node)
backup_id_b = self.backup_node(backup_dir, 'node', node)
# Change FULL B backup status to ERROR
self.change_backup_status(backup_dir, 'node', backup_id_b, 'ERROR')
# FULLb ERROR
# FULLa OK
# Take PAGEa1 backup
page_id_a1 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
# Change FULLb backup status to OK
self.change_backup_status(backup_dir, 'node', backup_id_b, 'OK')
# Change PAGEa1 and FULLa backup status to ERROR
self.change_backup_status(backup_dir, 'node', page_id_a1, 'ERROR')
self.change_backup_status(backup_dir, 'node', backup_id_a, 'ERROR')
# PAGEa1 ERROR
# FULLb OK
# FULLa ERROR
page_id_b1 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# PAGEb1 OK
# PAGEa1 ERROR
# FULLb OK
# FULLa ERROR
# Now we start to play with first generation of PAGE backups
# Change PAGEb1 status to ERROR
self.change_backup_status(backup_dir, 'node', page_id_b1, 'ERROR')
self.change_backup_status(backup_dir, 'node', backup_id_b, 'ERROR')
# Change PAGEa1 status to OK
self.change_backup_status(backup_dir, 'node', page_id_a1, 'OK')
self.change_backup_status(backup_dir, 'node', backup_id_a, 'OK')
# PAGEb1 ERROR
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
page_id_a2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# PAGEa2 OK
# PAGEb1 ERROR
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
# Change PAGEa2 and FULLa status to ERROR
self.change_backup_status(backup_dir, 'node', page_id_a2, 'ERROR')
self.change_backup_status(backup_dir, 'node', backup_id_a, 'ERROR')
# Change PAGEb1 and FULLb status to OK
self.change_backup_status(backup_dir, 'node', page_id_b1, 'OK')
self.change_backup_status(backup_dir, 'node', backup_id_b, 'OK')
# PAGEa2 ERROR
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa ERROR
page_id_b2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# Change PAGEa2 and FULLa status to OK
self.change_backup_status(backup_dir, 'node', page_id_a2, 'OK')
self.change_backup_status(backup_dir, 'node', backup_id_a, 'OK')
# PAGEb2 OK
# PAGEa2 OK
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa OK
self.delete_expired(
backup_dir, 'node',
options=['--retention-redundancy=1', '--expired'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 3)
print(self.show_pb(
backup_dir, 'node', as_json=False, as_text=True))
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_window_merge_interleaved_incremental_chains(self):
"""complicated case of interleaved backup chains"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'])
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.slow_start()
# Take FULL BACKUPs
backup_id_a = self.backup_node(backup_dir, 'node', node)
backup_id_b = self.backup_node(backup_dir, 'node', node)
# Change FULLb backup status to ERROR
self.change_backup_status(backup_dir, 'node', backup_id_b, 'ERROR')
# FULLb ERROR
# FULLa OK
# Take PAGEa1 backup
page_id_a1 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
# Change FULLb to OK
self.change_backup_status(backup_dir, 'node', backup_id_b, 'OK')
# Change PAGEa1 backup status to ERROR
self.change_backup_status(backup_dir, 'node', page_id_a1, 'ERROR')
# PAGEa1 ERROR
# FULLb OK
# FULLa OK
page_id_b1 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# PAGEb1 OK
# PAGEa1 ERROR
# FULLb OK
# FULLa OK
# Now we start to play with first generation of PAGE backups
# Change PAGEb1 and FULLb to ERROR
self.change_backup_status(backup_dir, 'node', page_id_b1, 'ERROR')
self.change_backup_status(backup_dir, 'node', backup_id_b, 'ERROR')
# Change PAGEa1 to OK
self.change_backup_status(backup_dir, 'node', page_id_a1, 'OK')
# PAGEb1 ERROR
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
page_id_a2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# PAGEa2 OK
# PAGEb1 ERROR
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
# Change PAGEa2 and FULLa to ERROR
self.change_backup_status(backup_dir, 'node', page_id_a2, 'ERROR')
self.change_backup_status(backup_dir, 'node', backup_id_a, 'ERROR')
# Change PAGEb1 and FULLb to OK
self.change_backup_status(backup_dir, 'node', page_id_b1, 'OK')
self.change_backup_status(backup_dir, 'node', backup_id_b, 'OK')
# PAGEa2 ERROR
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa ERROR
page_id_b2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# Change PAGEa2 and FULLa to OK
self.change_backup_status(backup_dir, 'node', page_id_a2, 'OK')
self.change_backup_status(backup_dir, 'node', backup_id_a, 'OK')
# PAGEb2 OK
# PAGEa2 OK
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa OK
# Purge backups
backups = os.path.join(backup_dir, 'backups', 'node')
for backup in os.listdir(backups):
if backup not in [page_id_a2, page_id_b2, 'pg_probackup.conf']:
with open(
os.path.join(
backups, backup, "backup.control"), "a") as conf:
conf.write("recovery_time='{:%Y-%m-%d %H:%M:%S}'\n".format(
datetime.now() - timedelta(days=3)))
output = self.delete_expired(
backup_dir, 'node',
options=['--retention-window=1', '--expired', '--merge-expired'])
self.assertIn(
"Merge incremental chain between full backup {0} and backup {1}".format(
backup_id_a, page_id_a2),
output)
self.assertIn(
"Rename merged full backup {0} to {1}".format(
backup_id_a, page_id_a2), output)
self.assertIn(
"Merge incremental chain between full backup {0} and backup {1}".format(
backup_id_b, page_id_b2),
output)
self.assertIn(
"Rename merged full backup {0} to {1}".format(
backup_id_b, page_id_b2), output)
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 2)
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_window_merge_interleaved_incremental_chains_1(self):
"""
PAGEb3
PAGEb2
PAGEb1
PAGEa1
FULLb
FULLa
"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'],
pg_options={'autovacuum':'off'})
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.slow_start()
node.pgbench_init(scale=3)
# Take FULL BACKUPs
backup_id_a = self.backup_node(backup_dir, 'node', node)
pgbench = node.pgbench(options=['-t', '10', '-c', '2'])
pgbench.wait()
backup_id_b = self.backup_node(backup_dir, 'node', node)
pgbench = node.pgbench(options=['-t', '10', '-c', '2'])
pgbench.wait()
# Change FULL B backup status to ERROR
self.change_backup_status(backup_dir, 'node', backup_id_b, 'ERROR')
page_id_a1 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
pgdata_a1 = self.pgdata_content(node.data_dir)
pgbench = node.pgbench(options=['-t', '10', '-c', '2'])
pgbench.wait()
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
# Change FULL B backup status to OK
self.change_backup_status(backup_dir, 'node', backup_id_b, 'OK')
# Change PAGEa1 backup status to ERROR
self.change_backup_status(backup_dir, 'node', page_id_a1, 'ERROR')
# PAGEa1 ERROR
# FULLb OK
# FULLa OK
page_id_b1 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
pgbench = node.pgbench(options=['-t', '10', '-c', '2'])
pgbench.wait()
page_id_b2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
pgbench = node.pgbench(options=['-t', '10', '-c', '2'])
pgbench.wait()
page_id_b3 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
pgdata_b3 = self.pgdata_content(node.data_dir)
pgbench = node.pgbench(options=['-t', '10', '-c', '2'])
pgbench.wait()
# PAGEb3 OK
# PAGEb2 OK
# PAGEb1 OK
# PAGEa1 ERROR
# FULLb OK
# FULLa OK
# Change PAGEa1 backup status to ERROR
self.change_backup_status(backup_dir, 'node', page_id_a1, 'OK')
# PAGEb3 OK
# PAGEb2 OK
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa OK
# Purge backups
backups = os.path.join(backup_dir, 'backups', 'node')
for backup in os.listdir(backups):
if backup in [page_id_a1, page_id_b3, 'pg_probackup.conf']:
continue
with open(
os.path.join(
backups, backup, "backup.control"), "a") as conf:
conf.write("recovery_time='{:%Y-%m-%d %H:%M:%S}'\n".format(
datetime.now() - timedelta(days=3)))
output = self.delete_expired(
backup_dir, 'node',
options=['--retention-window=1', '--expired', '--merge-expired'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 2)
self.assertEqual(
self.show_pb(backup_dir, 'node')[1]['id'],
page_id_b3)
self.assertEqual(
self.show_pb(backup_dir, 'node')[0]['id'],
page_id_a1)
self.assertEqual(
self.show_pb(backup_dir, 'node')[1]['backup-mode'],
'FULL')
self.assertEqual(
self.show_pb(backup_dir, 'node')[0]['backup-mode'],
'FULL')
node.cleanup()
# Data correctness of PAGEa3
self.restore_node(backup_dir, 'node', node, backup_id=page_id_a1)
pgdata_restored_a1 = self.pgdata_content(node.data_dir)
self.compare_pgdata(pgdata_a1, pgdata_restored_a1)
node.cleanup()
# Data correctness of PAGEb3
self.restore_node(backup_dir, 'node', node, backup_id=page_id_b3)
pgdata_restored_b3 = self.pgdata_content(node.data_dir)
self.compare_pgdata(pgdata_b3, pgdata_restored_b3)
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_basic_window_merge_multiple_descendants(self):
"""
PAGEb3
| PAGEa3
-----------------------------retention window
PAGEb2 /
| PAGEa2 / should be deleted
PAGEb1 \ /
| PAGEa1
FULLb |
FULLa
"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'],
pg_options={'autovacuum': 'off'})
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.slow_start()
node.pgbench_init(scale=3)
# Take FULL BACKUPs
backup_id_a = self.backup_node(backup_dir, 'node', node)
# pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
# pgbench.wait()
backup_id_b = self.backup_node(backup_dir, 'node', node)
# pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
# pgbench.wait()
# Change FULLb backup status to ERROR
self.change_backup_status(backup_dir, 'node', backup_id_b, 'ERROR')
page_id_a1 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
# pgbench.wait()
# Change FULLb to OK
self.change_backup_status(backup_dir, 'node', backup_id_b, 'OK')
# Change PAGEa1 to ERROR
self.change_backup_status(backup_dir, 'node', page_id_a1, 'ERROR')
# PAGEa1 ERROR
# FULLb OK
# FULLa OK
page_id_b1 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# PAGEb1 OK
# PAGEa1 ERROR
# FULLb OK
# FULLa OK
# pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
# pgbench.wait()
# Change PAGEa1 to OK
self.change_backup_status(backup_dir, 'node', page_id_a1, 'OK')
# Change PAGEb1 and FULLb to ERROR
self.change_backup_status(backup_dir, 'node', page_id_b1, 'ERROR')
self.change_backup_status(backup_dir, 'node', backup_id_b, 'ERROR')
# PAGEb1 ERROR
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
page_id_a2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
# pgbench.wait()
# PAGEa2 OK
# PAGEb1 ERROR
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
# Change PAGEb1 and FULLb to OK
self.change_backup_status(backup_dir, 'node', page_id_b1, 'OK')
self.change_backup_status(backup_dir, 'node', backup_id_b, 'OK')
# Change PAGEa2 and FULLa to ERROR
self.change_backup_status(backup_dir, 'node', page_id_a2, 'ERROR')
self.change_backup_status(backup_dir, 'node', backup_id_a, 'ERROR')
# PAGEa2 ERROR
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa ERROR
page_id_b2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
# pgbench.wait()
# PAGEb2 OK
# PAGEa2 ERROR
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa ERROR
# Change PAGEb2 and PAGEb1 to ERROR
self.change_backup_status(backup_dir, 'node', page_id_b2, 'ERROR')
self.change_backup_status(backup_dir, 'node', page_id_b1, 'ERROR')
# and FULL stuff
self.change_backup_status(backup_dir, 'node', backup_id_a, 'OK')
self.change_backup_status(backup_dir, 'node', backup_id_b, 'ERROR')
# PAGEb2 ERROR
# PAGEa2 ERROR
# PAGEb1 ERROR
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
page_id_a3 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
# pgbench.wait()
# PAGEa3 OK
# PAGEb2 ERROR
# PAGEa2 ERROR
# PAGEb1 ERROR
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
# Change PAGEa3 to ERROR
self.change_backup_status(backup_dir, 'node', page_id_a3, 'ERROR')
# Change PAGEb2, PAGEb1 and FULLb to OK
self.change_backup_status(backup_dir, 'node', page_id_b2, 'OK')
self.change_backup_status(backup_dir, 'node', page_id_b1, 'OK')
self.change_backup_status(backup_dir, 'node', backup_id_b, 'OK')
page_id_b3 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# PAGEb3 OK
# PAGEa3 ERROR
# PAGEb2 OK
# PAGEa2 ERROR
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa OK
# Change PAGEa3, PAGEa2 and PAGEb1 status to OK
self.change_backup_status(backup_dir, 'node', page_id_a3, 'OK')
self.change_backup_status(backup_dir, 'node', page_id_a2, 'OK')
self.change_backup_status(backup_dir, 'node', page_id_b1, 'OK')
# PAGEb3 OK
# PAGEa3 OK
# PAGEb2 OK
# PAGEa2 OK
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa OK
# Check that page_id_a3 and page_id_a2 are both direct descendants of page_id_a1
self.assertEqual(
self.show_pb(
backup_dir, 'node', backup_id=page_id_a3)['parent-backup-id'],
page_id_a1)
self.assertEqual(
self.show_pb(
backup_dir, 'node', backup_id=page_id_a2)['parent-backup-id'],
page_id_a1)
# Purge backups
backups = os.path.join(backup_dir, 'backups', 'node')
for backup in os.listdir(backups):
if backup in [page_id_a3, page_id_b3, 'pg_probackup.conf']:
continue
with open(
os.path.join(
backups, backup, "backup.control"), "a") as conf:
conf.write("recovery_time='{:%Y-%m-%d %H:%M:%S}'\n".format(
datetime.now() - timedelta(days=3)))
output = self.delete_expired(
backup_dir, 'node',
options=[
'--retention-window=1', '--delete-expired',
'--merge-expired', '--log-level-console=log'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 2)
# Merging chain A
self.assertIn(
"Merge incremental chain between full backup {0} and backup {1}".format(
backup_id_a, page_id_a3),
output)
self.assertIn(
"INFO: Rename merged full backup {0} to {1}".format(
backup_id_a, page_id_a3), output)
# self.assertIn(
# "WARNING: Backup {0} has multiple valid descendants. "
# "Automatic merge is not possible.".format(
# page_id_a1), output)
self.assertIn(
"LOG: Consider backup {0} for purge".format(
page_id_a2), output)
# Merge chain B
self.assertIn(
"Merge incremental chain between full backup {0} and backup {1}".format(
backup_id_b, page_id_b3),
output)
self.assertIn(
"INFO: Rename merged full backup {0} to {1}".format(
backup_id_b, page_id_b3), output)
self.assertIn(
"Delete: {0}".format(page_id_a2), output)
self.assertEqual(
self.show_pb(backup_dir, 'node')[1]['id'],
page_id_b3)
self.assertEqual(
self.show_pb(backup_dir, 'node')[0]['id'],
page_id_a3)
self.assertEqual(
self.show_pb(backup_dir, 'node')[1]['backup-mode'],
'FULL')
self.assertEqual(
self.show_pb(backup_dir, 'node')[0]['backup-mode'],
'FULL')
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_basic_window_merge_multiple_descendants_1(self):
"""
PAGEb3
| PAGEa3
-----------------------------retention window
PAGEb2 /
| PAGEa2 /
PAGEb1 \ /
| PAGEa1
FULLb |
FULLa
"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'],
pg_options={'autovacuum': 'off'})
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.slow_start()
node.pgbench_init(scale=3)
# Take FULL BACKUPs
backup_id_a = self.backup_node(backup_dir, 'node', node)
# pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
# pgbench.wait()
backup_id_b = self.backup_node(backup_dir, 'node', node)
# pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
# pgbench.wait()
# Change FULLb backup status to ERROR
self.change_backup_status(backup_dir, 'node', backup_id_b, 'ERROR')
page_id_a1 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
# pgbench.wait()
# Change FULLb to OK
self.change_backup_status(backup_dir, 'node', backup_id_b, 'OK')
# Change PAGEa1 to ERROR
self.change_backup_status(backup_dir, 'node', page_id_a1, 'ERROR')
# PAGEa1 ERROR
# FULLb OK
# FULLa OK
page_id_b1 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# PAGEb1 OK
# PAGEa1 ERROR
# FULLb OK
# FULLa OK
# pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
# pgbench.wait()
# Change PAGEa1 to OK
self.change_backup_status(backup_dir, 'node', page_id_a1, 'OK')
# Change PAGEb1 and FULLb to ERROR
self.change_backup_status(backup_dir, 'node', page_id_b1, 'ERROR')
self.change_backup_status(backup_dir, 'node', backup_id_b, 'ERROR')
# PAGEb1 ERROR
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
page_id_a2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
# pgbench.wait()
# PAGEa2 OK
# PAGEb1 ERROR
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
# Change PAGEb1 and FULLb to OK
self.change_backup_status(backup_dir, 'node', page_id_b1, 'OK')
self.change_backup_status(backup_dir, 'node', backup_id_b, 'OK')
# Change PAGEa2 and FULLa to ERROR
self.change_backup_status(backup_dir, 'node', page_id_a2, 'ERROR')
self.change_backup_status(backup_dir, 'node', backup_id_a, 'ERROR')
# PAGEa2 ERROR
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa ERROR
page_id_b2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
# pgbench.wait()
# PAGEb2 OK
# PAGEa2 ERROR
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa ERROR
# Change PAGEb2 and PAGEb1 to ERROR
self.change_backup_status(backup_dir, 'node', page_id_b2, 'ERROR')
self.change_backup_status(backup_dir, 'node', page_id_b1, 'ERROR')
# and FULL stuff
self.change_backup_status(backup_dir, 'node', backup_id_a, 'OK')
self.change_backup_status(backup_dir, 'node', backup_id_b, 'ERROR')
# PAGEb2 ERROR
# PAGEa2 ERROR
# PAGEb1 ERROR
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
page_id_a3 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
# pgbench.wait()
# PAGEa3 OK
# PAGEb2 ERROR
# PAGEa2 ERROR
# PAGEb1 ERROR
# PAGEa1 OK
# FULLb ERROR
# FULLa OK
# Change PAGEa3 to ERROR
self.change_backup_status(backup_dir, 'node', page_id_a3, 'ERROR')
# Change PAGEb2, PAGEb1 and FULLb to OK
self.change_backup_status(backup_dir, 'node', page_id_b2, 'OK')
self.change_backup_status(backup_dir, 'node', page_id_b1, 'OK')
self.change_backup_status(backup_dir, 'node', backup_id_b, 'OK')
page_id_b3 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# PAGEb3 OK
# PAGEa3 ERROR
# PAGEb2 OK
# PAGEa2 ERROR
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa OK
# Change PAGEa3, PAGEa2 and PAGEb1 status to OK
self.change_backup_status(backup_dir, 'node', page_id_a3, 'OK')
self.change_backup_status(backup_dir, 'node', page_id_a2, 'OK')
self.change_backup_status(backup_dir, 'node', page_id_b1, 'OK')
# PAGEb3 OK
# PAGEa3 OK
# PAGEb2 OK
# PAGEa2 OK
# PAGEb1 OK
# PAGEa1 OK
# FULLb OK
# FULLa OK
# Check that page_id_a3 and page_id_a2 are both direct descendants of page_id_a1
self.assertEqual(
self.show_pb(
backup_dir, 'node', backup_id=page_id_a3)['parent-backup-id'],
page_id_a1)
self.assertEqual(
self.show_pb(
backup_dir, 'node', backup_id=page_id_a2)['parent-backup-id'],
page_id_a1)
# Purge backups
backups = os.path.join(backup_dir, 'backups', 'node')
for backup in os.listdir(backups):
if backup in [page_id_a3, page_id_b3, 'pg_probackup.conf']:
continue
with open(
os.path.join(
backups, backup, "backup.control"), "a") as conf:
conf.write("recovery_time='{:%Y-%m-%d %H:%M:%S}'\n".format(
datetime.now() - timedelta(days=3)))
output = self.delete_expired(
backup_dir, 'node',
options=[
'--retention-window=1',
'--merge-expired', '--log-level-console=log'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 3)
# Merging chain A
self.assertIn(
"Merge incremental chain between full backup {0} and backup {1}".format(
backup_id_a, page_id_a3),
output)
self.assertIn(
"INFO: Rename merged full backup {0} to {1}".format(
backup_id_a, page_id_a3), output)
# self.assertIn(
# "WARNING: Backup {0} has multiple valid descendants. "
# "Automatic merge is not possible.".format(
# page_id_a1), output)
# Merge chain B
self.assertIn(
"Merge incremental chain between full backup {0} and backup {1}".format(
backup_id_b, page_id_b3), output)
self.assertIn(
"INFO: Rename merged full backup {0} to {1}".format(
backup_id_b, page_id_b3), output)
self.assertEqual(
self.show_pb(backup_dir, 'node')[2]['id'],
page_id_b3)
self.assertEqual(
self.show_pb(backup_dir, 'node')[1]['id'],
page_id_a3)
self.assertEqual(
self.show_pb(backup_dir, 'node')[0]['id'],
page_id_a2)
self.assertEqual(
self.show_pb(backup_dir, 'node')[2]['backup-mode'],
'FULL')
self.assertEqual(
self.show_pb(backup_dir, 'node')[1]['backup-mode'],
'FULL')
self.assertEqual(
self.show_pb(backup_dir, 'node')[0]['backup-mode'],
'PAGE')
output = self.delete_expired(
backup_dir, 'node',
options=[
'--retention-window=1',
'--delete-expired', '--log-level-console=log'])
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_window_chains(self):
"""
PAGE
-------window
PAGE
PAGE
FULL
PAGE
PAGE
FULL
"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'],
pg_options={'autovacuum': 'off'})
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.slow_start()
node.pgbench_init(scale=3)
# Chain A
backup_id_a = self.backup_node(backup_dir, 'node', node)
page_id_a1 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
page_id_a2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# Chain B
backup_id_b = self.backup_node(backup_dir, 'node', node)
pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
pgbench.wait()
page_id_b1 = self.backup_node(
backup_dir, 'node', node, backup_type='delta')
pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
pgbench.wait()
page_id_b2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
pgbench.wait()
page_id_b3 = self.backup_node(
backup_dir, 'node', node, backup_type='delta')
pgdata = self.pgdata_content(node.data_dir)
# Purge backups
backups = os.path.join(backup_dir, 'backups', 'node')
for backup in os.listdir(backups):
if backup in [page_id_b3, 'pg_probackup.conf']:
continue
with open(
os.path.join(
backups, backup, "backup.control"), "a") as conf:
conf.write("recovery_time='{:%Y-%m-%d %H:%M:%S}'\n".format(
datetime.now() - timedelta(days=3)))
output = self.delete_expired(
backup_dir, 'node',
options=[
'--retention-window=1', '--expired',
'--merge-expired', '--log-level-console=log'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 1)
node.cleanup()
self.restore_node(backup_dir, 'node', node)
pgdata_restored = self.pgdata_content(node.data_dir)
self.compare_pgdata(pgdata, pgdata_restored)
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_window_chains_1(self):
"""
PAGE
-------window
PAGE
PAGE
FULL
PAGE
PAGE
FULL
"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'])
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.slow_start()
node.pgbench_init(scale=3)
# Chain A
backup_id_a = self.backup_node(backup_dir, 'node', node)
page_id_a1 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
page_id_a2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# Chain B
backup_id_b = self.backup_node(backup_dir, 'node', node)
page_id_b1 = self.backup_node(
backup_dir, 'node', node, backup_type='delta')
page_id_b2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
page_id_b3 = self.backup_node(
backup_dir, 'node', node, backup_type='delta')
pgdata = self.pgdata_content(node.data_dir)
# Purge backups
backups = os.path.join(backup_dir, 'backups', 'node')
for backup in os.listdir(backups):
if backup in [page_id_b3, 'pg_probackup.conf']:
continue
with open(
os.path.join(
backups, backup, "backup.control"), "a") as conf:
conf.write("recovery_time='{:%Y-%m-%d %H:%M:%S}'\n".format(
datetime.now() - timedelta(days=3)))
output = self.delete_expired(
backup_dir, 'node',
options=[
'--retention-window=1',
'--merge-expired', '--log-level-console=log'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 4)
self.assertIn(
"There are no backups to delete by retention policy",
output)
self.assertIn(
"Retention merging finished",
output)
output = self.delete_expired(
backup_dir, 'node',
options=[
'--retention-window=1',
'--expired', '--log-level-console=log'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 1)
self.assertIn(
"There are no backups to merge by retention policy",
output)
self.assertIn(
"Purging finished",
output)
# Clean after yourself
self.del_test_dir(module_name, fname)
@unittest.skip("skip")
def test_window_error_backups(self):
"""
PAGE ERROR
-------window
PAGE ERROR
PAGE ERROR
PAGE ERROR
FULL ERROR
FULL
-------redundancy
"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'])
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.slow_start()
# Take FULL BACKUPs
backup_id_a1 = self.backup_node(backup_dir, 'node', node)
gdb = self.backup_node(
backup_dir, 'node', node, backup_type='page', gdb=True)
page_id_a3 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# Change FULLb backup status to ERROR
self.change_backup_status(backup_dir, 'node', backup_id_b, 'ERROR')
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_window_error_backups_1(self):
"""
DELTA
PAGE ERROR
FULL
-------window
"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'])
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.slow_start()
# Take FULL BACKUP
full_id = self.backup_node(backup_dir, 'node', node)
# Take PAGE BACKUP
gdb = self.backup_node(
backup_dir, 'node', node, backup_type='page', gdb=True)
gdb.set_breakpoint('pg_stop_backup')
gdb.run_until_break()
gdb.remove_all_breakpoints()
gdb._execute('signal SIGINT')
gdb.continue_execution_until_error()
page_id = self.show_pb(backup_dir, 'node')[1]['id']
# Take DELTA backup
delta_id = self.backup_node(
backup_dir, 'node', node, backup_type='delta',
options=['--retention-window=2', '--delete-expired'])
# Take FULL BACKUP
full2_id = self.backup_node(backup_dir, 'node', node)
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 4)
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_window_error_backups_2(self):
"""
DELTA
PAGE ERROR
FULL
-------window
"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'])
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.slow_start()
# Take FULL BACKUP
full_id = self.backup_node(backup_dir, 'node', node)
# Take PAGE BACKUP
gdb = self.backup_node(
backup_dir, 'node', node, backup_type='page', gdb=True)
gdb.set_breakpoint('pg_stop_backup')
gdb.run_until_break()
gdb._execute('signal SIGKILL')
gdb.continue_execution_until_error()
page_id = self.show_pb(backup_dir, 'node')[1]['id']
if self.get_version(node) < 90600:
node.safe_psql(
'postgres',
'SELECT pg_catalog.pg_stop_backup()')
# Take DELTA backup
delta_id = self.backup_node(
backup_dir, 'node', node, backup_type='delta',
options=['--retention-window=2', '--delete-expired'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 3)
# Clean after yourself
# self.del_test_dir(module_name, fname)
def test_retention_redundancy_overlapping_chains(self):
""""""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'])
if self.get_version(node) < 90600:
self.del_test_dir(module_name, fname)
return unittest.skip('Skipped because ptrack support is disabled')
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.slow_start()
self.set_config(
backup_dir, 'node', options=['--retention-redundancy=1'])
# Make backups to be purged
self.backup_node(backup_dir, 'node', node)
self.backup_node(backup_dir, 'node', node, backup_type="page")
# Make backups to be keeped
gdb = self.backup_node(backup_dir, 'node', node, gdb=True)
gdb.set_breakpoint('backup_files')
gdb.run_until_break()
sleep(1)
self.backup_node(backup_dir, 'node', node, backup_type="page")
gdb.remove_all_breakpoints()
gdb.continue_execution_until_exit()
self.backup_node(backup_dir, 'node', node, backup_type="page")
# Purge backups
log = self.delete_expired(
backup_dir, 'node', options=['--expired', '--wal'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 2)
self.validate_pb(backup_dir, 'node')
# Clean after yourself
self.del_test_dir(module_name, fname)
def test_retention_redundancy_overlapping_chains(self):
""""""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'])
if self.get_version(node) < 90600:
self.del_test_dir(module_name, fname)
return unittest.skip('Skipped because ptrack support is disabled')
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.slow_start()
self.set_config(
backup_dir, 'node', options=['--retention-redundancy=1'])
# Make backups to be purged
self.backup_node(backup_dir, 'node', node)
self.backup_node(backup_dir, 'node', node, backup_type="page")
# Make backups to be keeped
gdb = self.backup_node(backup_dir, 'node', node, gdb=True)
gdb.set_breakpoint('backup_files')
gdb.run_until_break()
sleep(1)
self.backup_node(backup_dir, 'node', node, backup_type="page")
gdb.remove_all_breakpoints()
gdb.continue_execution_until_exit()
self.backup_node(backup_dir, 'node', node, backup_type="page")
# Purge backups
log = self.delete_expired(
backup_dir, 'node', options=['--expired', '--wal'])
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 2)
self.validate_pb(backup_dir, 'node')
# Clean after yourself
self.del_test_dir(module_name, fname)
def test_wal_purge_victim(self):
"""
https://github.com/postgrespro/pg_probackup/issues/103
"""
fname = self.id().split('.')[3]
node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
initdb_params=['--data-checksums'])
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.slow_start()
# Make ERROR incremental backup
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 1 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))
page_id = self.show_pb(backup_dir, 'node')[0]['id']
sleep(1)
# Make FULL backup
full_id = self.backup_node(backup_dir, 'node', node, options=['--delete-wal'])
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 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(
"INFO: Backup {0} WAL segments are valid".format(full_id),
e.message)
self.assertIn(
"WARNING: Backup {0} has missing parent 0".format(page_id),
e.message)
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.skip("skip")
def test_failed_merge_redundancy_retention(self):
"""
Check that retention purge works correctly with MERGING backups
"""
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()
# FULL1 backup
full_id = self.backup_node(backup_dir, 'node', node)
# DELTA BACKUP
delta_id = self.backup_node(
backup_dir, 'node', node, backup_type='delta')
# DELTA BACKUP
self.backup_node(
backup_dir, 'node', node, backup_type='delta')
# DELTA BACKUP
self.backup_node(
backup_dir, 'node', node, backup_type='delta')
# FULL2 backup
self.backup_node(backup_dir, 'node', node)
# DELTA BACKUP
self.backup_node(
backup_dir, 'node', node, backup_type='delta')
# DELTA BACKUP
self.backup_node(
backup_dir, 'node', node, backup_type='delta')
# FULL3 backup
self.backup_node(backup_dir, 'node', node)
# DELTA BACKUP
self.backup_node(
backup_dir, 'node', node, backup_type='delta')
# DELTA BACKUP
self.backup_node(
backup_dir, 'node', node, backup_type='delta')
self.set_config(
backup_dir, 'node', options=['--retention-redundancy=2'])
self.set_config(
backup_dir, 'node', options=['--retention-window=2'])
# create pair of MERGING backup as a result of failed merge
gdb = self.merge_backup(
backup_dir, 'node', delta_id, gdb=True)
gdb.set_breakpoint('backup_non_data_file')
gdb.run_until_break()
gdb.continue_execution_until_break(2)
gdb._execute('signal SIGKILL')
# "expire" first full backup
backups = os.path.join(backup_dir, 'backups', 'node')
with open(
os.path.join(
backups, full_id, "backup.control"), "a") as conf:
conf.write("recovery_time='{:%Y-%m-%d %H:%M:%S}'\n".format(
datetime.now() - timedelta(days=3)))
# run retention merge
self.delete_expired(
backup_dir, 'node', options=['--delete-expired'])
self.assertEqual(
'MERGING',
self.show_pb(backup_dir, 'node', full_id)['status'],
'Backup STATUS should be "MERGING"')
self.assertEqual(
'MERGING',
self.show_pb(backup_dir, 'node', delta_id)['status'],
'Backup STATUS should be "MERGING"')
self.assertEqual(len(self.show_pb(backup_dir, 'node')), 10)
# Clean after yourself
self.del_test_dir(module_name, fname)
# @unittest.expectedFailure
@unittest.skip("skip")
def test_wal_depth(self):
"""
ARCHIVE replica:
t6 |---------------------->
t5 | |------>
| |
t4 | |----|------>
| |
t3 | |--B1--|/|--B2-|/|-B3-->
| |
t2 |--A1-----|--A2--->
t1 ---------Y1--Y2-|
ARCHIVE master:
t1 -Z1--Z2-->
"""
fname = self.id().split('.')[3]
backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
master = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'master'),
set_replication=True,
initdb_params=['--data-checksums'],
pg_options={
'archive_timeout': '30s',
'checkpoint_timeout': '30s',
'autovacuum': 'off'})
self.init_pb(backup_dir)
self.add_instance(backup_dir, 'master', master)
self.set_archiving(backup_dir, 'master', master)
master.slow_start()
# FULL
master.safe_psql(
"postgres",
"create table t_heap as select i as id, md5(i::text) as text, "
"md5(repeat(i::text,10))::tsvector as tsvector "
"from generate_series(0,10000) i")
self.backup_node(backup_dir, 'master', master)
# PAGE
master.safe_psql(
"postgres",
"insert into t_heap select i as id, md5(i::text) as text, "
"md5(repeat(i::text,10))::tsvector as tsvector "
"from generate_series(10000,20000) i")
self.backup_node(
backup_dir, 'master', master, backup_type='page')
replica = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'replica'))
replica.cleanup()
self.restore_node(backup_dir, 'master', replica)
self.set_replica(master, replica)
self.add_instance(backup_dir, 'replica', replica)
self.set_archiving(backup_dir, 'replica', replica, replica=True)
copy_tree(
os.path.join(backup_dir, 'wal', 'master'),
os.path.join(backup_dir, 'wal', 'replica'))
# Check data correctness on replica
replica.slow_start(replica=True)
# FULL backup replica
Y1 = self.backup_node(
backup_dir, 'replica', replica,
options=['--stream', '--archive-timeout=60s'])
master.pgbench_init(scale=5)
# PAGE backup replica
Y2 = self.backup_node(
backup_dir, 'replica', replica,
backup_type='page', options=['--stream', '--archive-timeout=60s'])
# create timeline t2
replica.promote()
# do checkpoint to increment timeline ID in pg_control
replica.safe_psql(
'postgres',
'CHECKPOINT')
# FULL backup replica
A1 = self.backup_node(
backup_dir, 'replica', replica)
replica.pgbench_init(scale=5)
replica.safe_psql(
'postgres',
"CREATE TABLE t1 (a text)")
target_xid = None
with replica.connect("postgres") as con:
res = con.execute(
"INSERT INTO t1 VALUES ('inserted') RETURNING (xmin)")
con.commit()
target_xid = res[0][0]
# DELTA backup replica
A2 = self.backup_node(
backup_dir, 'replica', replica, backup_type='delta')
# create timeline t3
replica.cleanup()
self.restore_node(
backup_dir, 'replica', replica,
options=[
'--recovery-target-xid={0}'.format(target_xid),
'--recovery-target-timeline=2',
'--recovery-target-action=promote'])
replica.slow_start()
B1 = self.backup_node(
backup_dir, 'replica', replica)
replica.pgbench_init(scale=2)
B2 = self.backup_node(
backup_dir, 'replica', replica, backup_type='page')
replica.pgbench_init(scale=2)
target_xid = None
with replica.connect("postgres") as con:
res = con.execute(
"INSERT INTO t1 VALUES ('inserted') RETURNING (xmin)")
con.commit()
target_xid = res[0][0]
B3 = self.backup_node(
backup_dir, 'replica', replica, backup_type='page')
replica.pgbench_init(scale=2)
# create timeline t4
replica.cleanup()
self.restore_node(
backup_dir, 'replica', replica,
options=[
'--recovery-target-xid={0}'.format(target_xid),
'--recovery-target-timeline=3',
'--recovery-target-action=promote'])
replica.slow_start()
replica.safe_psql(
'postgres',
'CREATE TABLE '
't2 as select i, '
'repeat(md5(i::text),5006056) as fat_attr '
'from generate_series(0,6) i')
target_xid = None
with replica.connect("postgres") as con:
res = con.execute(
"INSERT INTO t1 VALUES ('inserted') RETURNING (xmin)")
con.commit()
target_xid = res[0][0]
replica.safe_psql(
'postgres',
'CREATE TABLE '
't3 as select i, '
'repeat(md5(i::text),5006056) as fat_attr '
'from generate_series(0,10) i')
# create timeline t5
replica.cleanup()
self.restore_node(
backup_dir, 'replica', replica,
options=[
'--recovery-target-xid={0}'.format(target_xid),
'--recovery-target-timeline=4',
'--recovery-target-action=promote'])
replica.slow_start()
replica.safe_psql(
'postgres',
'CREATE TABLE '
't4 as select i, '
'repeat(md5(i::text),5006056) as fat_attr '
'from generate_series(0,6) i')
# create timeline t6
replica.cleanup()
self.restore_node(
backup_dir, 'replica', replica, backup_id=A1,
options=[
'--recovery-target=immediate',
'--recovery-target-action=promote'])
replica.slow_start()
replica.pgbench_init(scale=2)
show = self.show_archive(backup_dir, as_text=True)
show = self.show_archive(backup_dir)
for instance in show:
if instance['instance'] == 'replica':
replica_timelines = instance['timelines']
if instance['instance'] == 'master':
master_timelines = instance['timelines']
# check that all timelines are ok
for timeline in replica_timelines:
self.assertTrue(timeline['status'], 'OK')
# check that all timelines are ok
for timeline in master_timelines:
self.assertTrue(timeline['status'], 'OK')
# create holes in t3
wals_dir = os.path.join(backup_dir, 'wal', 'replica')
wals = [
f for f in os.listdir(wals_dir) if os.path.isfile(os.path.join(wals_dir, f))
and not f.endswith('.backup') and not f.endswith('.history') and f.startswith('00000003')
]
wals.sort()
# check that t3 is ok
self.show_archive(backup_dir)
file = os.path.join(backup_dir, 'wal', 'replica', '000000030000000000000017')
if self.archive_compress:
file = file + '.gz'
os.remove(file)
file = os.path.join(backup_dir, 'wal', 'replica', '000000030000000000000012')
if self.archive_compress:
file = file + '.gz'
os.remove(file)
file = os.path.join(backup_dir, 'wal', 'replica', '000000030000000000000013')
if self.archive_compress:
file = file + '.gz'
os.remove(file)
# check that t3 is not OK
show = self.show_archive(backup_dir)
show = self.show_archive(backup_dir)
for instance in show:
if instance['instance'] == 'replica':
replica_timelines = instance['timelines']
# sanity
for timeline in replica_timelines:
if timeline['tli'] == 1:
timeline_1 = timeline
continue
if timeline['tli'] == 2:
timeline_2 = timeline
continue
if timeline['tli'] == 3:
timeline_3 = timeline
continue
if timeline['tli'] == 4:
timeline_4 = timeline
continue
if timeline['tli'] == 5:
timeline_5 = timeline
continue
if timeline['tli'] == 6:
timeline_6 = timeline
continue
self.assertEqual(timeline_6['status'], "OK")
self.assertEqual(timeline_5['status'], "OK")
self.assertEqual(timeline_4['status'], "OK")
self.assertEqual(timeline_3['status'], "DEGRADED")
self.assertEqual(timeline_2['status'], "OK")
self.assertEqual(timeline_1['status'], "OK")
self.assertEqual(len(timeline_3['lost-segments']), 2)
self.assertEqual(timeline_3['lost-segments'][0]['begin-segno'], '0000000000000012')
self.assertEqual(timeline_3['lost-segments'][0]['end-segno'], '0000000000000013')
self.assertEqual(timeline_3['lost-segments'][1]['begin-segno'], '0000000000000017')
self.assertEqual(timeline_3['lost-segments'][1]['end-segno'], '0000000000000017')
self.assertEqual(len(timeline_6['backups']), 0)
self.assertEqual(len(timeline_5['backups']), 0)
self.assertEqual(len(timeline_4['backups']), 0)
self.assertEqual(len(timeline_3['backups']), 3)
self.assertEqual(len(timeline_2['backups']), 2)
self.assertEqual(len(timeline_1['backups']), 2)
# check closest backup correctness
self.assertEqual(timeline_6['closest-backup-id'], A1)
self.assertEqual(timeline_5['closest-backup-id'], B2)
self.assertEqual(timeline_4['closest-backup-id'], B2)
self.assertEqual(timeline_3['closest-backup-id'], A1)
self.assertEqual(timeline_2['closest-backup-id'], Y2)
# check parent tli correctness
self.assertEqual(timeline_6['parent-tli'], 2)
self.assertEqual(timeline_5['parent-tli'], 4)
self.assertEqual(timeline_4['parent-tli'], 3)
self.assertEqual(timeline_3['parent-tli'], 2)
self.assertEqual(timeline_2['parent-tli'], 1)
self.assertEqual(timeline_1['parent-tli'], 0)
output = self.delete_pb(
backup_dir, 'replica',
options=['--delete-wal', '--log-level-console=verbose'])
self.validate_pb(backup_dir, 'node')
self.del_test_dir(module_name, fname)
def test_wal_depth_1(self):
"""
|-------------B5----------> WAL timeline3
|-----|-------------------------> WAL timeline2
B1 B2---| B3 B4-------B6-----> WAL timeline1
wal-depth=2
"""
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'],
pg_options={
'archive_timeout': '30s',
'checkpoint_timeout': '30s',
'autovacuum': 'off'})
self.init_pb(backup_dir)
self.add_instance(backup_dir, 'node', node)
self.set_archiving(backup_dir, 'node', node)
self.set_config(backup_dir, 'node', options=['--archive-timeout=60s'])
node.slow_start()
# FULL
node.pgbench_init(scale=1)
B1 = self.backup_node(backup_dir, 'node', node)
# PAGE
node.pgbench_init(scale=1)
B2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# generate_some more data
node.pgbench_init(scale=1)
target_xid = node.safe_psql(
"postgres",
"select txid_current()").rstrip()
node.pgbench_init(scale=1)
B3 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
node.pgbench_init(scale=1)
B4 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# Timeline 2
node_restored = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node_restored'))
node_restored.cleanup()
output = self.restore_node(
backup_dir, 'node', node_restored,
options=[
'--recovery-target-xid={0}'.format(target_xid),
'--recovery-target-action=promote'])
self.assertIn(
'Restore of backup {0} completed'.format(B2),
output)
self.set_auto_conf(node_restored, options={'port': node_restored.port})
node_restored.slow_start()
node_restored.pgbench_init(scale=1)
target_xid = node_restored.safe_psql(
"postgres",
"select txid_current()").rstrip()
node_restored.pgbench_init(scale=2)
# Timeline 3
node_restored.cleanup()
output = self.restore_node(
backup_dir, 'node', node_restored,
options=[
'--recovery-target-xid={0}'.format(target_xid),
'--recovery-target-timeline=2',
'--recovery-target-action=promote'])
self.assertIn(
'Restore of backup {0} completed'.format(B2),
output)
self.set_auto_conf(node_restored, options={'port': node_restored.port})
node_restored.slow_start()
node_restored.pgbench_init(scale=1)
B5 = self.backup_node(
backup_dir, 'node', node_restored, data_dir=node_restored.data_dir)
node.pgbench_init(scale=1)
B6 = self.backup_node(backup_dir, 'node', node)
lsn = self.show_archive(backup_dir, 'node', tli=2)['switchpoint']
self.validate_pb(
backup_dir, 'node', backup_id=B2,
options=['--recovery-target-lsn={0}'.format(lsn)])
self.validate_pb(backup_dir, 'node')
self.del_test_dir(module_name, fname)
def test_wal_purge(self):
"""
-------------------------------------> tli5
---------------------------B6--------> tli4
S2`---------------> tli3
S1`------------S2---B4-------B5--> tli2
B1---S1-------------B2--------B3------> tli1
B* - backups
S* - switchpoints
Expected result:
TLI5 will be purged entirely
B6--------> tli4
S2`---------------> tli3
S1`------------S2---B4-------B5--> tli2
B1---S1-------------B2--------B3------> tli1
wal-depth=2
"""
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_config(backup_dir, 'node', options=['--archive-timeout=60s'])
node.slow_start()
# STREAM FULL
stream_id = self.backup_node(
backup_dir, 'node', node, options=['--stream'])
node.stop()
self.set_archiving(backup_dir, 'node', node)
node.slow_start()
# FULL
B1 = self.backup_node(backup_dir, 'node', node)
node.pgbench_init(scale=1)
target_xid = node.safe_psql(
"postgres",
"select txid_current()").rstrip()
node.pgbench_init(scale=5)
# B2 FULL on TLI1
B2 = self.backup_node(backup_dir, 'node', node)
node.pgbench_init(scale=4)
B3 = self.backup_node(backup_dir, 'node', node)
node.pgbench_init(scale=4)
# TLI 2
node_tli2 = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node_tli2'))
node_tli2.cleanup()
output = self.restore_node(
backup_dir, 'node', node_tli2,
options=[
'--recovery-target-xid={0}'.format(target_xid),
'--recovery-target-timeline=1'.format(target_xid),
'--recovery-target-action=promote'])
self.assertIn(
'INFO: Restore of backup {0} completed'.format(B1),
output)
self.set_auto_conf(node_tli2, options={'port': node_tli2.port})
node_tli2.slow_start()
node_tli2.pgbench_init(scale=4)
target_xid = node_tli2.safe_psql(
"postgres",
"select txid_current()").rstrip()
node_tli2.pgbench_init(scale=1)
B4 = self.backup_node(
backup_dir, 'node', node_tli2, data_dir=node_tli2.data_dir)
node_tli2.pgbench_init(scale=3)
B5 = self.backup_node(
backup_dir, 'node', node_tli2, data_dir=node_tli2.data_dir)
node_tli2.pgbench_init(scale=1)
node_tli2.cleanup()
# TLI3
node_tli3 = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node_tli3'))
node_tli3.cleanup()
# Note, that successful validation here is a happy coincidence
output = self.restore_node(
backup_dir, 'node', node_tli3,
options=[
'--recovery-target-xid={0}'.format(target_xid),
'--recovery-target-timeline=2',
'--recovery-target-action=promote'])
self.assertIn(
'INFO: Restore of backup {0} completed'.format(B1),
output)
self.set_auto_conf(node_tli3, options={'port': node_tli3.port})
node_tli3.slow_start()
node_tli3.pgbench_init(scale=5)
node_tli3.cleanup()
# TLI4
node_tli4 = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node_tli4'))
node_tli4.cleanup()
self.restore_node(
backup_dir, 'node', node_tli4, backup_id=stream_id,
options=[
'--recovery-target=immediate',
'--recovery-target-action=promote'])
self.set_auto_conf(node_tli4, options={'port': node_tli4.port})
self.set_archiving(backup_dir, 'node', node_tli4)
node_tli4.slow_start()
node_tli4.pgbench_init(scale=5)
B6 = self.backup_node(
backup_dir, 'node', node_tli4, data_dir=node_tli4.data_dir)
node_tli4.pgbench_init(scale=5)
node_tli4.cleanup()
# TLI5
node_tli5 = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node_tli5'))
node_tli5.cleanup()
self.restore_node(
backup_dir, 'node', node_tli5, backup_id=stream_id,
options=[
'--recovery-target=immediate',
'--recovery-target-action=promote'])
self.set_auto_conf(node_tli5, options={'port': node_tli5.port})
self.set_archiving(backup_dir, 'node', node_tli5)
node_tli5.slow_start()
node_tli5.pgbench_init(scale=10)
# delete '.history' file of TLI4
os.remove(os.path.join(backup_dir, 'wal', 'node', '00000004.history'))
# delete '.history' file of TLI5
os.remove(os.path.join(backup_dir, 'wal', 'node', '00000005.history'))
output = self.delete_pb(
backup_dir, 'node',
options=[
'--delete-wal', '--dry-run',
'--log-level-console=verbose'])
self.assertIn(
'INFO: On timeline 4 WAL segments between 000000040000000000000002 '
'and 000000040000000000000006 can be removed',
output)
self.assertIn(
'INFO: On timeline 5 all files can be removed',
output)
show_tli1_before = self.show_archive(backup_dir, 'node', tli=1)
show_tli2_before = self.show_archive(backup_dir, 'node', tli=2)
show_tli3_before = self.show_archive(backup_dir, 'node', tli=3)
show_tli4_before = self.show_archive(backup_dir, 'node', tli=4)
show_tli5_before = self.show_archive(backup_dir, 'node', tli=5)
self.assertTrue(show_tli1_before)
self.assertTrue(show_tli2_before)
self.assertTrue(show_tli3_before)
self.assertTrue(show_tli4_before)
self.assertTrue(show_tli5_before)
output = self.delete_pb(
backup_dir, 'node',
options=['--delete-wal', '--log-level-console=verbose'])
self.assertIn(
'INFO: On timeline 4 WAL segments between 000000040000000000000002 '
'and 000000040000000000000006 will be removed',
output)
self.assertIn(
'INFO: On timeline 5 all files will be removed',
output)
show_tli1_after = self.show_archive(backup_dir, 'node', tli=1)
show_tli2_after = self.show_archive(backup_dir, 'node', tli=2)
show_tli3_after = self.show_archive(backup_dir, 'node', tli=3)
show_tli4_after = self.show_archive(backup_dir, 'node', tli=4)
show_tli5_after = self.show_archive(backup_dir, 'node', tli=5)
self.assertEqual(show_tli1_before, show_tli1_after)
self.assertEqual(show_tli2_before, show_tli2_after)
self.assertEqual(show_tli3_before, show_tli3_after)
self.assertNotEqual(show_tli4_before, show_tli4_after)
self.assertNotEqual(show_tli5_before, show_tli5_after)
self.assertEqual(
show_tli4_before['min-segno'],
'000000040000000000000002')
self.assertEqual(
show_tli4_after['min-segno'],
'000000040000000000000006')
self.assertFalse(show_tli5_after)
self.validate_pb(backup_dir, 'node')
self.del_test_dir(module_name, fname)
def test_wal_depth_2(self):
"""
-------------------------------------> tli5
---------------------------B6--------> tli4
S2`---------------> tli3
S1`------------S2---B4-------B5--> tli2
B1---S1-------------B2--------B3------> tli1
B* - backups
S* - switchpoints
wal-depth=2
Expected result:
TLI5 will be purged entirely
B6--------> tli4
S2`---------------> tli3
S1`------------S2 B4-------B5--> tli2
B1---S1 B2--------B3------> tli1
wal-depth=2
"""
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_config(backup_dir, 'node', options=['--archive-timeout=60s'])
node.slow_start()
# STREAM FULL
stream_id = self.backup_node(
backup_dir, 'node', node, options=['--stream'])
node.stop()
self.set_archiving(backup_dir, 'node', node)
node.slow_start()
# FULL
B1 = self.backup_node(backup_dir, 'node', node)
node.pgbench_init(scale=1)
target_xid = node.safe_psql(
"postgres",
"select txid_current()").rstrip()
node.pgbench_init(scale=5)
# B2 FULL on TLI1
B2 = self.backup_node(backup_dir, 'node', node)
node.pgbench_init(scale=4)
B3 = self.backup_node(backup_dir, 'node', node)
node.pgbench_init(scale=4)
# TLI 2
node_tli2 = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node_tli2'))
node_tli2.cleanup()
output = self.restore_node(
backup_dir, 'node', node_tli2,
options=[
'--recovery-target-xid={0}'.format(target_xid),
'--recovery-target-timeline=1'.format(target_xid),
'--recovery-target-action=promote'])
self.assertIn(
'INFO: Restore of backup {0} completed'.format(B1),
output)
self.set_auto_conf(node_tli2, options={'port': node_tli2.port})
node_tli2.slow_start()
node_tli2.pgbench_init(scale=4)
target_xid = node_tli2.safe_psql(
"postgres",
"select txid_current()").rstrip()
node_tli2.pgbench_init(scale=1)
B4 = self.backup_node(
backup_dir, 'node', node_tli2, data_dir=node_tli2.data_dir)
node_tli2.pgbench_init(scale=3)
B5 = self.backup_node(
backup_dir, 'node', node_tli2, data_dir=node_tli2.data_dir)
node_tli2.pgbench_init(scale=1)
node_tli2.cleanup()
# TLI3
node_tli3 = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node_tli3'))
node_tli3.cleanup()
# Note, that successful validation here is a happy coincidence
output = self.restore_node(
backup_dir, 'node', node_tli3,
options=[
'--recovery-target-xid={0}'.format(target_xid),
'--recovery-target-timeline=2',
'--recovery-target-action=promote'])
self.assertIn(
'INFO: Restore of backup {0} completed'.format(B1),
output)
self.set_auto_conf(node_tli3, options={'port': node_tli3.port})
node_tli3.slow_start()
node_tli3.pgbench_init(scale=5)
node_tli3.cleanup()
# TLI4
node_tli4 = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node_tli4'))
node_tli4.cleanup()
self.restore_node(
backup_dir, 'node', node_tli4, backup_id=stream_id,
options=[
'--recovery-target=immediate',
'--recovery-target-action=promote'])
self.set_auto_conf(node_tli4, options={'port': node_tli4.port})
self.set_archiving(backup_dir, 'node', node_tli4)
node_tli4.slow_start()
node_tli4.pgbench_init(scale=5)
B6 = self.backup_node(
backup_dir, 'node', node_tli4, data_dir=node_tli4.data_dir)
node_tli4.pgbench_init(scale=5)
node_tli4.cleanup()
# TLI5
node_tli5 = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node_tli5'))
node_tli5.cleanup()
self.restore_node(
backup_dir, 'node', node_tli5, backup_id=stream_id,
options=[
'--recovery-target=immediate',
'--recovery-target-action=promote'])
self.set_auto_conf(node_tli5, options={'port': node_tli5.port})
self.set_archiving(backup_dir, 'node', node_tli5)
node_tli5.slow_start()
node_tli5.pgbench_init(scale=10)
# delete '.history' file of TLI4
os.remove(os.path.join(backup_dir, 'wal', 'node', '00000004.history'))
# delete '.history' file of TLI5
os.remove(os.path.join(backup_dir, 'wal', 'node', '00000005.history'))
output = self.delete_pb(
backup_dir, 'node',
options=[
'--delete-wal', '--dry-run',
'--wal-depth=2', '--log-level-console=verbose'])
start_lsn_B2 = self.show_pb(backup_dir, 'node', B2)['start-lsn']
self.assertIn(
'On timeline 1 WAL is protected from purge at {0}'.format(start_lsn_B2),
output)
self.assertIn(
'LOG: Archive backup {0} to stay consistent protect from '
'purge WAL interval between 000000010000000000000004 '
'and 000000010000000000000004 on timeline 1'.format(B1), output)
start_lsn_B4 = self.show_pb(backup_dir, 'node', B4)['start-lsn']
self.assertIn(
'On timeline 2 WAL is protected from purge at {0}'.format(start_lsn_B4),
output)
self.assertIn(
'LOG: Timeline 3 to stay reachable from timeline 1 protect '
'from purge WAL interval between 000000020000000000000005 and '
'000000020000000000000008 on timeline 2', output)
self.assertIn(
'LOG: Timeline 3 to stay reachable from timeline 1 protect '
'from purge WAL interval between 000000010000000000000004 and '
'000000010000000000000005 on timeline 1', output)
show_tli1_before = self.show_archive(backup_dir, 'node', tli=1)
show_tli2_before = self.show_archive(backup_dir, 'node', tli=2)
show_tli3_before = self.show_archive(backup_dir, 'node', tli=3)
show_tli4_before = self.show_archive(backup_dir, 'node', tli=4)
show_tli5_before = self.show_archive(backup_dir, 'node', tli=5)
self.assertTrue(show_tli1_before)
self.assertTrue(show_tli2_before)
self.assertTrue(show_tli3_before)
self.assertTrue(show_tli4_before)
self.assertTrue(show_tli5_before)
sleep(5)
output = self.delete_pb(
backup_dir, 'node',
options=['--delete-wal', '--wal-depth=2', '--log-level-console=verbose'])
# print(output)
show_tli1_after = self.show_archive(backup_dir, 'node', tli=1)
show_tli2_after = self.show_archive(backup_dir, 'node', tli=2)
show_tli3_after = self.show_archive(backup_dir, 'node', tli=3)
show_tli4_after = self.show_archive(backup_dir, 'node', tli=4)
show_tli5_after = self.show_archive(backup_dir, 'node', tli=5)
self.assertNotEqual(show_tli1_before, show_tli1_after)
self.assertNotEqual(show_tli2_before, show_tli2_after)
self.assertEqual(show_tli3_before, show_tli3_after)
self.assertNotEqual(show_tli4_before, show_tli4_after)
self.assertNotEqual(show_tli5_before, show_tli5_after)
self.assertEqual(
show_tli4_before['min-segno'],
'000000040000000000000002')
self.assertEqual(
show_tli4_after['min-segno'],
'000000040000000000000006')
self.assertFalse(show_tli5_after)
self.assertTrue(show_tli1_after['lost-segments'])
self.assertTrue(show_tli2_after['lost-segments'])
self.assertFalse(show_tli3_after['lost-segments'])
self.assertFalse(show_tli4_after['lost-segments'])
self.assertFalse(show_tli5_after)
self.assertEqual(len(show_tli1_after['lost-segments']), 1)
self.assertEqual(len(show_tli2_after['lost-segments']), 1)
self.assertEqual(
show_tli1_after['lost-segments'][0]['begin-segno'],
'000000010000000000000006')
self.assertEqual(
show_tli1_after['lost-segments'][0]['end-segno'],
'000000010000000000000009')
self.assertEqual(
show_tli2_after['lost-segments'][0]['begin-segno'],
'000000020000000000000009')
self.assertEqual(
show_tli2_after['lost-segments'][0]['end-segno'],
'000000020000000000000009')
self.validate_pb(backup_dir, 'node')
self.del_test_dir(module_name, fname)
def test_basic_wal_depth(self):
"""
B1---B1----B3-----B4----B5------> tli1
Expected result with wal-depth=1:
B1 B1 B3 B4 B5------> tli1
wal-depth=1
"""
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_config(backup_dir, 'node', options=['--archive-timeout=60s'])
self.set_archiving(backup_dir, 'node', node)
node.slow_start()
# FULL
node.pgbench_init(scale=1)
B1 = self.backup_node(backup_dir, 'node', node)
# B2
pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
pgbench.wait()
B2 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# B3
pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
pgbench.wait()
B3 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# B4
pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
pgbench.wait()
B4 = self.backup_node(
backup_dir, 'node', node, backup_type='page')
# B5
pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
pgbench.wait()
B5 = self.backup_node(
backup_dir, 'node', node, backup_type='page',
options=['--wal-depth=1', '--delete-wal'])
pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
pgbench.wait()
target_xid = node.safe_psql(
"postgres",
"select txid_current()").rstrip()
self.switch_wal_segment(node)
pgbench = node.pgbench(options=['-T', '10', '-c', '2'])
pgbench.wait()
tli1 = self.show_archive(backup_dir, 'node', tli=1)
# check that there are 4 lost_segments intervals
self.assertEqual(len(tli1['lost-segments']), 4)
output = self.validate_pb(
backup_dir, 'node', B5,
options=['--recovery-target-xid={0}'.format(target_xid)])
print(output)
self.assertIn(
'INFO: Backup validation completed successfully on time',
output)
self.assertIn(
'xid {0} and LSN'.format(target_xid),
output)
for backup_id in [B1, B2, B3, B4]:
try:
self.validate_pb(
backup_dir, 'node', backup_id,
options=['--recovery-target-xid={0}'.format(target_xid)])
# 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: Not enough WAL records to xid {0}".format(target_xid),
e.message)
self.validate_pb(backup_dir, 'node')
self.del_test_dir(module_name, fname)
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