import os import unittest from .helpers.ptrack_helpers import ProbackupTest, ProbackupException from testgres import QueryException from datetime import datetime, timedelta import subprocess import gzip import shutil module_name = 'page' class PageTest(ProbackupTest, unittest.TestCase): # @unittest.skip("skip") def test_basic_page_vacuum_truncate(self): """ make node, create table, take full backup, delete last 3 pages, vacuum relation, take page backup, take second page backup, restore last page backup and check data correctness """ 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={ 'checkpoint_timeout': '300s', 'autovacuum': 'off'}) node_restored = self.make_simple_node( base_dir=os.path.join(module_name, fname, 'node_restored')) self.init_pb(backup_dir) self.add_instance(backup_dir, 'node', node) self.set_archiving(backup_dir, 'node', node) node_restored.cleanup() node.slow_start() self.create_tblspace_in_node(node, 'somedata') node.safe_psql( "postgres", "create sequence t_seq; " "create table t_heap tablespace somedata as select i as id, " "md5(i::text) as text, " "md5(repeat(i::text,10))::tsvector as tsvector " "from generate_series(0,1024) i;") node.safe_psql( "postgres", "vacuum t_heap") self.backup_node(backup_dir, 'node', node) # TODO: make it dynamic node.safe_psql( "postgres", "delete from t_heap where ctid >= '(11,0)'") node.safe_psql( "postgres", "vacuum t_heap") self.backup_node( backup_dir, 'node', node, backup_type='page') self.backup_node( backup_dir, 'node', node, backup_type='page') if self.paranoia: pgdata = self.pgdata_content(node.data_dir) old_tablespace = self.get_tblspace_path(node, 'somedata') new_tablespace = self.get_tblspace_path(node_restored, 'somedata_new') self.restore_node( backup_dir, 'node', node_restored, options=[ "-j", "4", "-T", "{0}={1}".format(old_tablespace, new_tablespace)]) # Physical comparison if self.paranoia: pgdata_restored = self.pgdata_content(node_restored.data_dir) self.compare_pgdata(pgdata, pgdata_restored) self.set_auto_conf(node_restored, {'port': node_restored.port}) node_restored.slow_start() # Logical comparison result1 = node.safe_psql( "postgres", "select * from t_heap") result2 = node_restored.safe_psql( "postgres", "select * from t_heap") self.assertEqual(result1, result2) # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_page_vacuum_truncate_1(self): """ make node, create table, take full backup, delete all data, vacuum relation, take page backup, insert some data, take second page backup and check data correctness """ 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={'autovacuum': 'off'}) self.init_pb(backup_dir) self.add_instance(backup_dir, 'node', node) self.set_archiving(backup_dir, 'node', node) node.slow_start() node.safe_psql( "postgres", "create sequence t_seq; " "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(0,1024) i") node.safe_psql( "postgres", "vacuum t_heap") self.backup_node(backup_dir, 'node', node) node.safe_psql( "postgres", "delete from t_heap") node.safe_psql( "postgres", "vacuum t_heap") self.backup_node( backup_dir, 'node', node, backup_type='page') node.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(0,1) i") self.backup_node( backup_dir, 'node', node, backup_type='page') pgdata = self.pgdata_content(node.data_dir) node_restored = self.make_simple_node( base_dir=os.path.join(module_name, fname, 'node_restored')) node_restored.cleanup() self.restore_node(backup_dir, 'node', node_restored) # Physical comparison pgdata_restored = self.pgdata_content(node_restored.data_dir) self.compare_pgdata(pgdata, pgdata_restored) self.set_auto_conf(node_restored, {'port': node_restored.port}) node_restored.slow_start() # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_page_stream(self): """ make archive node, take full and page stream backups, restore them and check data correctness """ self.maxDiff = None 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={ 'checkpoint_timeout': '30s'} ) self.init_pb(backup_dir) self.add_instance(backup_dir, 'node', node) self.set_archiving(backup_dir, 'node', node) node.slow_start() # FULL BACKUP node.safe_psql( "postgres", "create table t_heap as select i as id, md5(i::text) as text, " "md5(i::text)::tsvector as tsvector " "from generate_series(0,100) i") full_result = node.execute("postgres", "SELECT * FROM t_heap") full_backup_id = self.backup_node( backup_dir, 'node', node, backup_type='full', options=['--stream']) # PAGE BACKUP node.safe_psql( "postgres", "insert into t_heap select i as id, md5(i::text) as text, " "md5(i::text)::tsvector as tsvector " "from generate_series(100,200) i") page_result = node.execute("postgres", "SELECT * FROM t_heap") page_backup_id = self.backup_node( backup_dir, 'node', node, backup_type='page', options=['--stream', '-j', '4']) if self.paranoia: pgdata = self.pgdata_content(node.data_dir) # Drop Node node.cleanup() # Check full backup self.assertIn( "INFO: Restore of backup {0} completed.".format(full_backup_id), self.restore_node( backup_dir, 'node', node, backup_id=full_backup_id, options=["-j", "4"]), '\n Unexpected Error Message: {0}\n' ' CMD: {1}'.format(repr(self.output), self.cmd)) node.slow_start() full_result_new = node.execute("postgres", "SELECT * FROM t_heap") self.assertEqual(full_result, full_result_new) node.cleanup() # Check page backup self.assertIn( "INFO: Restore of backup {0} completed.".format(page_backup_id), self.restore_node( backup_dir, 'node', node, backup_id=page_backup_id, options=["-j", "4"]), '\n Unexpected Error Message: {0}\n' ' CMD: {1}'.format(repr(self.output), self.cmd)) # GET RESTORED PGDATA AND COMPARE if self.paranoia: pgdata_restored = self.pgdata_content(node.data_dir) self.compare_pgdata(pgdata, pgdata_restored) node.slow_start() page_result_new = node.execute("postgres", "SELECT * FROM t_heap") self.assertEqual(page_result, page_result_new) node.cleanup() # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_page_archive(self): """ make archive node, take full and page archive backups, restore them and check data correctness """ self.maxDiff = None 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={ 'checkpoint_timeout': '30s'} ) self.init_pb(backup_dir) self.add_instance(backup_dir, 'node', node) self.set_archiving(backup_dir, 'node', node) node.slow_start() # FULL BACKUP node.safe_psql( "postgres", "create table t_heap as select i as id, md5(i::text) as text, " "md5(i::text)::tsvector as tsvector from generate_series(0,100) i") full_result = node.execute("postgres", "SELECT * FROM t_heap") full_backup_id = self.backup_node( backup_dir, 'node', node, backup_type='full') # PAGE BACKUP node.safe_psql( "postgres", "insert into t_heap select i as id, " "md5(i::text) as text, md5(i::text)::tsvector as tsvector " "from generate_series(100, 200) i") page_result = node.execute("postgres", "SELECT * FROM t_heap") page_backup_id = self.backup_node( backup_dir, 'node', node, backup_type='page', options=["-j", "4"]) if self.paranoia: pgdata = self.pgdata_content(node.data_dir) # Drop Node node.cleanup() # Restore and check full backup self.assertIn("INFO: Restore of backup {0} completed.".format( full_backup_id), self.restore_node( backup_dir, 'node', node, backup_id=full_backup_id, options=[ "-j", "4", "--immediate", "--recovery-target-action=promote"]), '\n Unexpected Error Message: {0}\n CMD: {1}'.format( repr(self.output), self.cmd)) node.slow_start() full_result_new = node.execute("postgres", "SELECT * FROM t_heap") self.assertEqual(full_result, full_result_new) node.cleanup() # Restore and check page backup self.assertIn( "INFO: Restore of backup {0} completed.".format(page_backup_id), self.restore_node( backup_dir, 'node', node, backup_id=page_backup_id, options=[ "-j", "4", "--immediate", "--recovery-target-action=promote"]), '\n Unexpected Error Message: {0}\n CMD: {1}'.format( repr(self.output), self.cmd)) # GET RESTORED PGDATA AND COMPARE if self.paranoia: pgdata_restored = self.pgdata_content(node.data_dir) self.compare_pgdata(pgdata, pgdata_restored) node.slow_start() page_result_new = node.execute("postgres", "SELECT * FROM t_heap") self.assertEqual(page_result, page_result_new) node.cleanup() # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_page_multiple_segments(self): """ Make node, create table with multiple segments, write some data to it, check page and data correctness """ 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={ 'fsync': 'off', 'shared_buffers': '1GB', 'maintenance_work_mem': '1GB', 'autovacuum': 'off', 'full_page_writes': 'off'}) self.init_pb(backup_dir) self.add_instance(backup_dir, 'node', node) self.set_archiving(backup_dir, 'node', node) node.slow_start() self.create_tblspace_in_node(node, 'somedata') # CREATE TABLE node.pgbench_init(scale=100, options=['--tablespace=somedata']) # FULL BACKUP self.backup_node(backup_dir, 'node', node) # PGBENCH STUFF pgbench = node.pgbench(options=['-T', '50', '-c', '1', '--no-vacuum']) pgbench.wait() # GET LOGICAL CONTENT FROM NODE result = node.safe_psql("postgres", "select * from pgbench_accounts") # PAGE BACKUP self.backup_node(backup_dir, 'node', node, backup_type='page') # GET PHYSICAL CONTENT FROM NODE pgdata = self.pgdata_content(node.data_dir) # RESTORE NODE restored_node = self.make_simple_node( base_dir=os.path.join(module_name, fname, 'restored_node')) restored_node.cleanup() tblspc_path = self.get_tblspace_path(node, 'somedata') tblspc_path_new = self.get_tblspace_path( restored_node, 'somedata_restored') self.restore_node( backup_dir, 'node', restored_node, options=[ "-j", "4", "-T", "{0}={1}".format(tblspc_path, tblspc_path_new)]) # GET PHYSICAL CONTENT FROM NODE_RESTORED pgdata_restored = self.pgdata_content(restored_node.data_dir) # START RESTORED NODE self.set_auto_conf(restored_node, {'port': restored_node.port}) restored_node.slow_start() result_new = restored_node.safe_psql( "postgres", "select * from pgbench_accounts") # COMPARE RESTORED FILES self.assertEqual(result, result_new, 'data is lost') if self.paranoia: self.compare_pgdata(pgdata, pgdata_restored) # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_page_delete(self): """ Make node, create tablespace with table, take full backup, delete everything from table, vacuum table, take page backup, restore page backup, compare . """ 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={ 'checkpoint_timeout': '30s', 'autovacuum': 'off' } ) self.init_pb(backup_dir) self.add_instance(backup_dir, 'node', node) self.set_archiving(backup_dir, 'node', node) node.slow_start() self.create_tblspace_in_node(node, 'somedata') # FULL backup self.backup_node(backup_dir, 'node', node) node.safe_psql( "postgres", "create table t_heap tablespace somedata as select i as id," " md5(i::text) as text, md5(i::text)::tsvector as tsvector" " from generate_series(0,100) i") node.safe_psql( "postgres", "delete from t_heap") node.safe_psql( "postgres", "vacuum t_heap") # PAGE BACKUP self.backup_node( backup_dir, 'node', node, backup_type='page') if self.paranoia: pgdata = self.pgdata_content(node.data_dir) # RESTORE node_restored = self.make_simple_node( base_dir=os.path.join(module_name, fname, 'node_restored')) node_restored.cleanup() self.restore_node( backup_dir, 'node', node_restored, options=[ "-j", "4", "-T", "{0}={1}".format( self.get_tblspace_path(node, 'somedata'), self.get_tblspace_path(node_restored, 'somedata')) ] ) # GET RESTORED PGDATA AND COMPARE if self.paranoia: pgdata_restored = self.pgdata_content(node_restored.data_dir) self.compare_pgdata(pgdata, pgdata_restored) # START RESTORED NODE self.set_auto_conf(node_restored, {'port': node_restored.port}) node_restored.slow_start() # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_page_delete_1(self): """ Make node, create tablespace with table, take full backup, delete everything from table, vacuum table, take page backup, restore page backup, compare . """ 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={ 'checkpoint_timeout': '30s', 'autovacuum': 'off' } ) self.init_pb(backup_dir) self.add_instance(backup_dir, 'node', node) self.set_archiving(backup_dir, 'node', node) node.slow_start() self.create_tblspace_in_node(node, 'somedata') node.safe_psql( "postgres", "create table t_heap tablespace somedata as select i as id," " md5(i::text) as text, md5(i::text)::tsvector as tsvector" " from generate_series(0,100) i" ) # FULL backup self.backup_node(backup_dir, 'node', node) node.safe_psql( "postgres", "delete from t_heap" ) node.safe_psql( "postgres", "vacuum t_heap" ) # PAGE BACKUP self.backup_node( backup_dir, 'node', node, backup_type='page') if self.paranoia: pgdata = self.pgdata_content(node.data_dir) # RESTORE node_restored = self.make_simple_node( base_dir=os.path.join(module_name, fname, 'node_restored') ) node_restored.cleanup() self.restore_node( backup_dir, 'node', node_restored, options=[ "-j", "4", "-T", "{0}={1}".format( self.get_tblspace_path(node, 'somedata'), self.get_tblspace_path(node_restored, 'somedata')) ] ) # GET RESTORED PGDATA AND COMPARE if self.paranoia: pgdata_restored = self.pgdata_content(node_restored.data_dir) self.compare_pgdata(pgdata, pgdata_restored) # START RESTORED NODE self.set_auto_conf(node_restored, {'port': node_restored.port}) node_restored.slow_start() # Clean after yourself self.del_test_dir(module_name, fname) def test_parallel_pagemap(self): """ Test for parallel WAL segments reading, during which pagemap is built """ fname = self.id().split('.')[3] backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup') # Initialize instance and backup directory node = self.make_simple_node( base_dir=os.path.join(module_name, fname, 'node'), initdb_params=['--data-checksums'], pg_options={ "hot_standby": "on" } ) node_restored = self.make_simple_node( base_dir=os.path.join(module_name, fname, 'node_restored'), ) self.init_pb(backup_dir) self.add_instance(backup_dir, 'node', node) node_restored.cleanup() self.set_archiving(backup_dir, 'node', node) node.slow_start() # Do full backup 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") # Fill instance with data and make several WAL segments ... with node.connect() as conn: conn.execute("create table test (id int)") for x in range(0, 8): conn.execute( "insert into test select i from generate_series(1,100) s(i)") conn.commit() self.switch_wal_segment(conn) count1 = conn.execute("select count(*) from test") # ... and do page backup with parallel pagemap self.backup_node( backup_dir, 'node', node, backup_type="page", options=["-j", "4"]) show_backup = self.show_pb(backup_dir, 'node')[1] self.assertEqual(show_backup['status'], "OK") self.assertEqual(show_backup['backup-mode'], "PAGE") if self.paranoia: pgdata = self.pgdata_content(node.data_dir) # Restore it self.restore_node(backup_dir, 'node', node_restored) # Physical comparison if self.paranoia: pgdata_restored = self.pgdata_content(node_restored.data_dir) self.compare_pgdata(pgdata, pgdata_restored) self.set_auto_conf(node_restored, {'port': node_restored.port}) node_restored.slow_start() # Check restored node count2 = node_restored.execute("postgres", "select count(*) from test") self.assertEqual(count1, count2) # Clean after yourself node.cleanup() node_restored.cleanup() self.del_test_dir(module_name, fname) def test_parallel_pagemap_1(self): """ Test for parallel WAL segments reading, during which pagemap is built """ fname = self.id().split('.')[3] backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup') # Initialize instance and backup directory node = self.make_simple_node( base_dir=os.path.join(module_name, fname, 'node'), initdb_params=['--data-checksums'], pg_options={} ) self.init_pb(backup_dir) self.add_instance(backup_dir, 'node', node) self.set_archiving(backup_dir, 'node', node) node.slow_start() # Do full backup 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") # Fill instance with data and make several WAL segments ... node.pgbench_init(scale=10) # do page backup in single thread page_id = self.backup_node( backup_dir, 'node', node, backup_type="page") self.delete_pb(backup_dir, 'node', page_id) # ... and do page backup with parallel pagemap self.backup_node( backup_dir, 'node', node, backup_type="page", options=["-j", "4"]) show_backup = self.show_pb(backup_dir, 'node')[1] self.assertEqual(show_backup['status'], "OK") self.assertEqual(show_backup['backup-mode'], "PAGE") # Drop node and restore it node.cleanup() self.restore_node(backup_dir, 'node', node) node.slow_start() # Clean after yourself node.cleanup() self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_page_backup_with_lost_wal_segment(self): """ make node with archiving make archive backup, then generate some wals with pgbench, delete latest archived wal segment run page backup, expecting error because of missing wal segment make sure that backup status is 'ERROR' """ fname = self.id().split('.')[3] node = self.make_simple_node( base_dir=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.backup_node(backup_dir, 'node', node) # make some wals node.pgbench_init(scale=3) # delete last wal segment wals_dir = os.path.join(backup_dir, 'wal', 'node') wals = [f for f in os.listdir(wals_dir) if os.path.isfile(os.path.join( wals_dir, f)) and not f.endswith('.backup') and not f.endswith('.part')] wals = map(str, wals) file = os.path.join(wals_dir, max(wals)) os.remove(file) if self.archive_compress: file = file[:-3] # Single-thread PAGE backup try: self.backup_node( backup_dir, 'node', node, backup_type='page') self.assertEqual( 1, 0, "Expecting Error because of wal segment disappearance.\n " "Output: {0} \n CMD: {1}".format( self.output, self.cmd)) except ProbackupException as e: self.assertTrue( 'INFO: Wait for WAL segment' in e.message and 'to be archived' in e.message and 'Could not read WAL record at' in e.message and 'is absent' in e.message, '\n Unexpected Error Message: {0}\n CMD: {1}'.format( repr(e.message), self.cmd)) self.assertEqual( 'ERROR', self.show_pb(backup_dir, 'node')[1]['status'], 'Backup {0} should have STATUS "ERROR"') # Multi-thread PAGE backup try: self.backup_node( backup_dir, 'node', node, backup_type='page', options=["-j", "4"]) self.assertEqual( 1, 0, "Expecting Error because of wal segment disappearance.\n " "Output: {0} \n CMD: {1}".format( self.output, self.cmd)) except ProbackupException as e: self.assertTrue( 'INFO: Wait for WAL segment' in e.message and 'to be archived' in e.message and 'Could not read WAL record at' in e.message and 'is absent' in e.message, '\n Unexpected Error Message: {0}\n CMD: {1}'.format( repr(e.message), self.cmd)) self.assertEqual( 'ERROR', self.show_pb(backup_dir, 'node')[2]['status'], 'Backup {0} should have STATUS "ERROR"') # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_page_backup_with_corrupted_wal_segment(self): """ make node with archiving make archive backup, then generate some wals with pgbench, corrupt latest archived wal segment run page backup, expecting error because of missing wal segment make sure that backup status is 'ERROR' """ fname = self.id().split('.')[3] node = self.make_simple_node( base_dir=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.backup_node(backup_dir, 'node', node) # make some wals node.pgbench_init(scale=10) # delete last wal segment wals_dir = os.path.join(backup_dir, 'wal', 'node') wals = [f for f in os.listdir(wals_dir) if os.path.isfile(os.path.join( wals_dir, f)) and not f.endswith('.backup')] wals = map(str, wals) # file = os.path.join(wals_dir, max(wals)) if self.archive_compress: original_file = os.path.join(wals_dir, '000000010000000000000004.gz') tmp_file = os.path.join(backup_dir, '000000010000000000000004') with gzip.open(original_file, 'rb') as f_in, open(tmp_file, 'wb') as f_out: shutil.copyfileobj(f_in, f_out) # drop healthy file os.remove(original_file) file = tmp_file else: file = os.path.join(wals_dir, '000000010000000000000004') # corrupt file print(file) with open(file, "rb+", 0) as f: f.seek(42) f.write(b"blah") f.flush() f.close if self.archive_compress: # compress corrupted file and replace with it old file with open(file, 'rb') as f_in, gzip.open(original_file, 'wb', compresslevel=1) as f_out: shutil.copyfileobj(f_in, f_out) file = os.path.join(wals_dir, '000000010000000000000004.gz') #if self.archive_compress: # file = file[:-3] # Single-thread PAGE backup try: self.backup_node( backup_dir, 'node', node, backup_type='page') self.assertEqual( 1, 0, "Expecting Error because of wal segment disappearance.\n " "Output: {0} \n CMD: {1}".format( self.output, self.cmd)) except ProbackupException as e: self.assertTrue( 'INFO: Wait for WAL segment' in e.message and 'to be archived' in e.message and 'Could not read WAL record at' in e.message and 'Possible WAL corruption. Error has occured during reading WAL segment' in e.message, '\n Unexpected Error Message: {0}\n CMD: {1}'.format( repr(e.message), self.cmd)) self.assertEqual( 'ERROR', self.show_pb(backup_dir, 'node')[1]['status'], 'Backup {0} should have STATUS "ERROR"') # Multi-thread PAGE backup try: self.backup_node( backup_dir, 'node', node, backup_type='page', options=["-j", "4"]) self.assertEqual( 1, 0, "Expecting Error because of wal segment disappearance.\n " "Output: {0} \n CMD: {1}".format( self.output, self.cmd)) except ProbackupException as e: self.assertTrue( 'INFO: Wait for WAL segment' in e.message and 'to be archived' in e.message and 'Could not read WAL record at' in e.message and 'Possible WAL corruption. Error has occured during reading WAL segment "{0}"'.format( file) in e.message, '\n Unexpected Error Message: {0}\n CMD: {1}'.format( repr(e.message), self.cmd)) self.assertEqual( 'ERROR', self.show_pb(backup_dir, 'node')[2]['status'], 'Backup {0} should have STATUS "ERROR"') # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_page_backup_with_alien_wal_segment(self): """ make two nodes with archiving take archive full backup from both nodes, generate some wals with pgbench on both nodes, move latest archived wal segment from second node to first node`s archive run page backup on first node expecting error because of alien wal segment make sure that backup status is 'ERROR' """ fname = self.id().split('.')[3] node = self.make_simple_node( base_dir=os.path.join(module_name, fname, 'node'), set_replication=True, initdb_params=['--data-checksums']) alien_node = self.make_simple_node( base_dir=os.path.join(module_name, fname, 'alien_node'), set_replication=True, 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.add_instance(backup_dir, 'alien_node', alien_node) self.set_archiving(backup_dir, 'alien_node', alien_node) alien_node.slow_start() self.backup_node( backup_dir, 'node', node, options=['--stream']) self.backup_node( backup_dir, 'alien_node', alien_node, options=['--stream']) # make some wals node.safe_psql( "postgres", "create sequence t_seq; " "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(0,1000) i;") alien_node.safe_psql( "postgres", "create database alien") alien_node.safe_psql( "alien", "create sequence t_seq; " "create table t_heap_alien as select i as id, " "md5(i::text) as text, " "md5(repeat(i::text,10))::tsvector as tsvector " "from generate_series(0,100000) i;") # copy latest wal segment wals_dir = os.path.join(backup_dir, 'wal', 'alien_node') wals = [f for f in os.listdir(wals_dir) if os.path.isfile(os.path.join( wals_dir, f)) and not f.endswith('.backup')] wals = map(str, wals) filename = max(wals) file = os.path.join(wals_dir, filename) file_destination = os.path.join( os.path.join(backup_dir, 'wal', 'node'), filename) # file = os.path.join(wals_dir, '000000010000000000000004') print(file) print(file_destination) os.remove(file_destination) os.rename(file, file_destination) # Single-thread PAGE backup try: self.backup_node( backup_dir, 'node', node, backup_type='page') self.assertEqual( 1, 0, "Expecting Error because of alien wal segment.\n " "Output: {0} \n CMD: {1}".format( self.output, self.cmd)) except ProbackupException as e: self.assertTrue( 'INFO: Wait for WAL segment' in e.message and 'to be archived' in e.message and 'Could not read WAL record at' in e.message and 'Possible WAL corruption. Error has occured during reading WAL segment' in e.message, '\n Unexpected Error Message: {0}\n CMD: {1}'.format( repr(e.message), self.cmd)) self.assertEqual( 'ERROR', self.show_pb(backup_dir, 'node')[1]['status'], 'Backup {0} should have STATUS "ERROR"') # Multi-thread PAGE backup try: self.backup_node( backup_dir, 'node', node, backup_type='page', options=["-j", "4"]) self.assertEqual( 1, 0, "Expecting Error because of alien wal segment.\n " "Output: {0} \n CMD: {1}".format( self.output, self.cmd)) except ProbackupException as e: self.assertIn('INFO: Wait for WAL segment', e.message) self.assertIn('to be archived', e.message) self.assertIn('Could not read WAL record at', e.message) self.assertIn('WAL file is from different database system: ' 'WAL file database system identifier is', e.message) self.assertIn('pg_control database system identifier is', e.message) self.assertIn('Possible WAL corruption. Error has occured ' 'during reading WAL segment', e.message) self.assertEqual( 'ERROR', self.show_pb(backup_dir, 'node')[2]['status'], 'Backup {0} should have STATUS "ERROR"') # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_multithread_page_backup_with_toast(self): """ make node, create toast, do multithread PAGE backup """ 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.backup_node(backup_dir, 'node', node) # make some wals node.safe_psql( "postgres", "create table t3 as select i, " "repeat(md5(i::text),5006056) as fat_attr " "from generate_series(0,70) i") # Multi-thread PAGE backup self.backup_node( backup_dir, 'node', node, backup_type='page', options=["-j", "4"]) # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_page_create_db(self): """ Make node, take full backup, create database db1, take page backup, restore database and check it presense """ self.maxDiff = None 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={ 'max_wal_size': '10GB', 'checkpoint_timeout': '5min', 'autovacuum': 'off' } ) self.init_pb(backup_dir) self.add_instance(backup_dir, 'node', node) self.set_archiving(backup_dir, 'node', node) node.slow_start() # FULL BACKUP node.safe_psql( "postgres", "create table t_heap as select i as id, md5(i::text) as text, " "md5(i::text)::tsvector as tsvector from generate_series(0,100) i") self.backup_node( backup_dir, 'node', node) # CREATE DATABASE DB1 node.safe_psql("postgres", "create database db1") node.safe_psql( "db1", "create table t_heap as select i as id, md5(i::text) as text, " "md5(i::text)::tsvector as tsvector from generate_series(0,1000) i") # PAGE BACKUP backup_id = self.backup_node(backup_dir, 'node', node, backup_type='page') if self.paranoia: pgdata = self.pgdata_content(node.data_dir) # RESTORE node_restored = self.make_simple_node( base_dir=os.path.join(module_name, fname, 'node_restored')) node_restored.cleanup() self.restore_node( backup_dir, 'node', node_restored, backup_id=backup_id, options=["-j", "4"]) # COMPARE PHYSICAL CONTENT if self.paranoia: pgdata_restored = self.pgdata_content(node_restored.data_dir) self.compare_pgdata(pgdata, pgdata_restored) # START RESTORED NODE self.set_auto_conf(node_restored, {'port': node_restored.port}) node_restored.slow_start() node_restored.safe_psql('db1', 'select 1') node_restored.cleanup() # DROP DATABASE DB1 node.safe_psql( "postgres", "drop database db1") # SECOND PAGE BACKUP backup_id = self.backup_node( backup_dir, 'node', node, backup_type='page') if self.paranoia: pgdata = self.pgdata_content(node.data_dir) # RESTORE SECOND PAGE BACKUP self.restore_node( backup_dir, 'node', node_restored, backup_id=backup_id, options=["-j", "4"] ) # COMPARE PHYSICAL CONTENT if self.paranoia: pgdata_restored = self.pgdata_content( node_restored.data_dir, ignore_ptrack=False) self.compare_pgdata(pgdata, pgdata_restored) # START RESTORED NODE self.set_auto_conf(node_restored, {'port': node_restored.port}) node_restored.slow_start() try: node_restored.safe_psql('db1', 'select 1') # we should die here because exception is what we expect to happen self.assertEqual( 1, 0, "Expecting Error because we are connecting to deleted database" "\n Output: {0} \n CMD: {1}".format( repr(self.output), self.cmd) ) except QueryException as e: self.assertTrue( 'FATAL: database "db1" does not exist' in e.message, '\n Unexpected Error Message: {0}\n CMD: {1}'.format( repr(e.message), self.cmd) ) # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") # @unittest.expectedFailure def test_multi_timeline_page(self): """ Check that backup in PAGE mode choose parent backup correctly: t12 /---P--> ... t3 /----> t2 /----> t1 -F-----D-> P must have F as parent """ 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={'autovacuum': 'off'}) 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=50) full_id = self.backup_node(backup_dir, 'node', node) pgbench = node.pgbench(options=['-T', '20', '-c', '1', '--no-vacuum']) pgbench.wait() self.backup_node(backup_dir, 'node', node, backup_type='delta') node.cleanup() self.restore_node( backup_dir, 'node', node, backup_id=full_id, options=[ '--recovery-target=immediate', '--recovery-target-action=promote']) node.slow_start() pgbench = node.pgbench(options=['-T', '20', '-c', '1', '--no-vacuum']) pgbench.wait() # create timelines for i in range(2, 12): node.cleanup() self.restore_node( backup_dir, 'node', node, backup_id=full_id, options=['--recovery-target-timeline={0}'.format(i)]) node.slow_start() pgbench = node.pgbench(options=['-T', '3', '-c', '1', '--no-vacuum']) pgbench.wait() page_id = self.backup_node( backup_dir, 'node', node, backup_type='page', options=['--log-level-file=VERBOSE']) pgdata = self.pgdata_content(node.data_dir) node.cleanup() self.restore_node(backup_dir, 'node', node) pgdata_restored = self.pgdata_content(node.data_dir) self.compare_pgdata(pgdata, pgdata_restored) show = self.show_archive(backup_dir) timelines = show[0]['timelines'] # self.assertEqual() self.assertEqual( self.show_pb(backup_dir, 'node', page_id)['parent-backup-id'], full_id) # Clean after yourself self.del_test_dir(module_name, fname) @unittest.skip("skip") # @unittest.expectedFailure def test_page_pg_resetxlog(self): fname = self.id().split('.')[3] node = self.make_simple_node( base_dir=os.path.join(module_name, fname, 'node'), set_replication=True, initdb_params=['--data-checksums'], pg_options={ 'autovacuum': 'off', 'shared_buffers': '512MB', 'max_wal_size': '3GB'}) 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() # Create table node.safe_psql( "postgres", "create extension bloom; create sequence t_seq; " "create table t_heap " "as select nextval('t_seq')::int as id, md5(i::text) as text, " "md5(repeat(i::text,10))::tsvector as tsvector " # "from generate_series(0,25600) i") "from generate_series(0,2560) i") self.backup_node(backup_dir, 'node', node) node.safe_psql( 'postgres', "update t_heap set id = nextval('t_seq'), text = md5(text), " "tsvector = md5(repeat(tsvector::text, 10))::tsvector") self.switch_wal_segment(node) # kill the bastard if self.verbose: print('Killing postmaster. Losing Ptrack changes') node.stop(['-m', 'immediate', '-D', node.data_dir]) # now smack it with sledgehammer if node.major_version >= 10: pg_resetxlog_path = self.get_bin_path('pg_resetwal') wal_dir = 'pg_wal' else: pg_resetxlog_path = self.get_bin_path('pg_resetxlog') wal_dir = 'pg_xlog' self.run_binary( [ pg_resetxlog_path, '-D', node.data_dir, '-o 42', '-f' ], asynchronous=False) if not node.status(): node.slow_start() else: print("Die! Die! Why won't you die?... Why won't you die?") exit(1) # take ptrack backup # self.backup_node( # backup_dir, 'node', node, # backup_type='page', options=['--stream']) 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 instance was brutalized by pg_resetxlog" "\n Output: {0} \n CMD: {1}".format( repr(self.output), self.cmd) ) except ProbackupException as e: self.assertIn( 'Insert error message', e.message, '\n Unexpected Error Message: {0}\n' ' CMD: {1}'.format(repr(e.message), self.cmd)) # pgdata = self.pgdata_content(node.data_dir) # # node_restored = self.make_simple_node( # base_dir=os.path.join(module_name, fname, 'node_restored')) # node_restored.cleanup() # # self.restore_node( # backup_dir, 'node', node_restored) # # pgdata_restored = self.pgdata_content(node_restored.data_dir) # self.compare_pgdata(pgdata, pgdata_restored) # Clean after yourself self.del_test_dir(module_name, fname)