import os import unittest from .helpers.ptrack_helpers import ProbackupTest, ProbackupException from datetime import datetime, timedelta from testgres import QueryException import subprocess import time from threading import Thread module_name = 'delta' class DeltaTest(ProbackupTest, unittest.TestCase): # @unittest.skip("skip") def test_basic_delta_vacuum_truncate(self): """ make node, create table, take full backup, delete last 3 pages, vacuum relation, take delta backup, take second delta backup, restore latest delta 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'}) 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() 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, options=['--stream']) 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='delta') self.backup_node( backup_dir, 'node', node, backup_type='delta') pgdata = self.pgdata_content(node.data_dir) 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, [node, node_restored]) # @unittest.skip("skip") def test_delta_vacuum_truncate_1(self): """ make node, create table, take full backup, delete last 3 pages, vacuum relation, take delta backup, take second delta backup, restore latest delta 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' } ) 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) 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='delta' ) self.backup_node( backup_dir, 'node', node, backup_type='delta' ) 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=[ "-T", "{0}={1}".format( old_tablespace, new_tablespace)] ) # 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_delta_vacuum_truncate_2(self): """ make node, create table, take full backup, delete last 3 pages, vacuum relation, take delta backup, take second delta backup, restore latest delta 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' } ) 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() node.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(0,10100000) i;" ) filepath = node.safe_psql( "postgres", "select pg_relation_filepath('t_heap')" ).decode('utf-8').rstrip() self.backup_node(backup_dir, 'node', node) print(os.path.join(node.data_dir, filepath + '.1')) os.unlink(os.path.join(node.data_dir, filepath + '.1')) self.backup_node( backup_dir, 'node', node, backup_type='delta') self.backup_node( backup_dir, 'node', node, backup_type='delta') pgdata = self.pgdata_content(node.data_dir) 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_delta_stream(self): """ make archive node, take full and delta stream backups, restore them 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': '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']) # delta 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") delta_result = node.execute("postgres", "SELECT * FROM t_heap") delta_backup_id = self.backup_node( backup_dir, 'node', node, backup_type='delta', options=['--stream']) # 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", "--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() # Check delta backup self.assertIn( "INFO: Restore of backup {0} completed.".format(delta_backup_id), self.restore_node( backup_dir, 'node', node, backup_id=delta_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() delta_result_new = node.execute("postgres", "SELECT * FROM t_heap") self.assertEqual(delta_result, delta_result_new) node.cleanup() # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_delta_archive(self): """ make archive node, take full and delta 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']) 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(0,1) i") full_result = node.execute("postgres", "SELECT * FROM t_heap") full_backup_id = self.backup_node( backup_dir, 'node', node, backup_type='full') # delta 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(0,2) i") delta_result = node.execute("postgres", "SELECT * FROM t_heap") delta_backup_id = self.backup_node( backup_dir, 'node', node, backup_type='delta') # 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 delta backup self.assertIn( "INFO: Restore of backup {0} completed.".format(delta_backup_id), self.restore_node( backup_dir, 'node', node, backup_id=delta_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() delta_result_new = node.execute("postgres", "SELECT * FROM t_heap") self.assertEqual(delta_result, delta_result_new) node.cleanup() # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_delta_multiple_segments(self): """ Make node, create table with multiple segments, write some data to it, check delta 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', '--no-vacuum']) # FULL BACKUP self.backup_node(backup_dir, 'node', node, options=['--stream']) # PGBENCH STUFF pgbench = node.pgbench(options=['-T', '50', '-c', '1', '--no-vacuum']) pgbench.wait() node.safe_psql("postgres", "checkpoint") # GET LOGICAL CONTENT FROM NODE result = node.safe_psql("postgres", "select * from pgbench_accounts") # delta BACKUP self.backup_node( backup_dir, 'node', node, backup_type='delta', options=['--stream']) # 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_delta_vacuum_full(self): """ make node, make full and delta stream backups, restore them 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']) node_restored = self.make_simple_node( base_dir=os.path.join(module_name, fname, 'node_restored')) node_restored.cleanup() self.init_pb(backup_dir) self.add_instance(backup_dir, 'node', node) node.slow_start() self.create_tblspace_in_node(node, 'somedata') self.backup_node(backup_dir, 'node', node, options=['--stream']) node.safe_psql( "postgres", "create table t_heap tablespace somedata as select i" " as id from generate_series(0,1000000) i" ) pg_connect = node.connect("postgres", autocommit=True) gdb = self.gdb_attach(pg_connect.pid) gdb.set_breakpoint('reform_and_rewrite_tuple') gdb.continue_execution_until_running() process = Thread( target=pg_connect.execute, args=["VACUUM FULL t_heap"]) process.start() while not gdb.stopped_in_breakpoint: sleep(1) gdb.continue_execution_until_break(20) self.backup_node( backup_dir, 'node', node, backup_type='delta', options=['--stream']) if self.paranoia: pgdata = self.pgdata_content(node.data_dir) gdb.remove_all_breakpoints() gdb._execute('detach') process.join() 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() # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_create_db(self): """ Make node, take full backup, create database db1, take delta backup, restore database and check it presense """ 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', 'autovacuum': 'off' } ) self.init_pb(backup_dir) self.add_instance(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") node.safe_psql("postgres", "SELECT * FROM t_heap") self.backup_node( backup_dir, 'node', node, options=["--stream"]) # 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(0,100) i") # DELTA BACKUP backup_id = self.backup_node( backup_dir, 'node', node, backup_type='delta', options=["--stream"] ) 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", "--immediate", "--recovery-target-action=promote"]) # 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() # DROP DATABASE DB1 node.safe_psql( "postgres", "drop database db1") # SECOND DELTA BACKUP backup_id = self.backup_node( backup_dir, 'node', node, backup_type='delta', options=["--stream"] ) if self.paranoia: pgdata = self.pgdata_content(node.data_dir) # RESTORE SECOND DELTA BACKUP node_restored.cleanup() self.restore_node( backup_dir, 'node', node_restored, backup_id=backup_id, options=[ "-j", "4", "--immediate", "--recovery-target-action=promote"] ) # 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() 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") def test_exists_in_previous_backup(self): """ Make node, take full backup, create table, take page backup, take delta backup, check that file is no fully copied to delta backup """ 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") node.safe_psql("postgres", "SELECT * FROM t_heap") filepath = node.safe_psql( "postgres", "SELECT pg_relation_filepath('t_heap')").decode('utf-8').rstrip() self.backup_node( backup_dir, 'node', node, options=["--stream"]) # PAGE BACKUP backup_id = self.backup_node( backup_dir, 'node', node, backup_type='page' ) fullpath = os.path.join( backup_dir, 'backups', 'node', backup_id, 'database', filepath) self.assertFalse(os.path.exists(fullpath)) # if self.paranoia: # pgdata_page = self.pgdata_content( # os.path.join( # backup_dir, 'backups', # 'node', backup_id, 'database')) # DELTA BACKUP backup_id = self.backup_node( backup_dir, 'node', node, backup_type='delta', options=["--stream"] ) # if self.paranoia: # pgdata_delta = self.pgdata_content( # os.path.join( # backup_dir, 'backups', # 'node', backup_id, 'database')) # self.compare_pgdata( # pgdata_page, pgdata_delta) fullpath = os.path.join( backup_dir, 'backups', 'node', backup_id, 'database', filepath) self.assertFalse(os.path.exists(fullpath)) 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", "--immediate", "--recovery-target-action=promote"]) # 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() # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_alter_table_set_tablespace_delta(self): """ Make node, create tablespace with table, take full backup, alter tablespace location, take delta backup, restore database. """ 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) node.slow_start() # FULL BACKUP 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, options=["--stream"]) # ALTER TABLESPACE self.create_tblspace_in_node(node, 'somedata_new') node.safe_psql( "postgres", "alter table t_heap set tablespace somedata_new") # DELTA BACKUP result = node.safe_psql( "postgres", "select * from t_heap") self.backup_node( backup_dir, 'node', node, backup_type='delta', options=["--stream"]) 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') ), "-T", "{0}={1}".format( self.get_tblspace_path(node, 'somedata_new'), self.get_tblspace_path(node_restored, 'somedata_new') ) ] ) # 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() result_new = node_restored.safe_psql( "postgres", "select * from t_heap") self.assertEqual(result, result_new, 'lost some data after restore') # Clean after yourself self.del_test_dir(module_name, fname) # @unittest.skip("skip") def test_alter_database_set_tablespace_delta(self): """ Make node, take full backup, create database, take delta backup, alter database tablespace location, take delta backup restore last delta backup. """ 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) node.slow_start() self.create_tblspace_in_node(node, 'somedata') # FULL backup self.backup_node(backup_dir, 'node', node, options=["--stream"]) # CREATE DATABASE DB1 node.safe_psql( "postgres", "create database db1 tablespace = 'somedata'") 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(0,100) i") # DELTA BACKUP self.backup_node( backup_dir, 'node', node, backup_type='delta', options=["--stream"] ) # ALTER TABLESPACE self.create_tblspace_in_node(node, 'somedata_new') node.safe_psql( "postgres", "alter database db1 set tablespace somedata_new" ) # DELTA BACKUP self.backup_node( backup_dir, 'node', node, backup_type='delta', options=["--stream"] ) 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') ), "-T", "{0}={1}".format( self.get_tblspace_path(node, 'somedata_new'), self.get_tblspace_path(node_restored, 'somedata_new') ) ] ) # 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_delta_delete(self): """ Make node, create tablespace with table, take full backup, alter tablespace location, take delta backup, restore database. """ 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, options=["--stream"]) 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" ) # DELTA BACKUP self.backup_node( backup_dir, 'node', node, backup_type='delta', options=["--stream"] ) 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_delta_nullified_heap_page_backup(self): """ make node, take full backup, nullify some heap block, take delta backup, restore, physically compare pgdata`s """ 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=1) file_path = node.safe_psql( "postgres", "select pg_relation_filepath('pgbench_accounts')").decode('utf-8').rstrip() node.safe_psql( "postgres", "CHECKPOINT") self.backup_node( backup_dir, 'node', node) # Nullify some block in PostgreSQL file = os.path.join(node.data_dir, file_path).replace("\\", "/") if os.name == 'nt': file = file.replace("\\", "/") with open(file, 'r+b', 0) as f: f.seek(8192) f.write(b"\x00"*8192) f.flush() f.close self.backup_node( backup_dir, 'node', node, backup_type='delta', options=["--log-level-file=verbose"]) if self.paranoia: pgdata = self.pgdata_content(node.data_dir) if not self.remote: log_file_path = os.path.join(backup_dir, "log", "pg_probackup.log") with open(log_file_path) as f: content = f.read() self.assertIn( 'VERBOSE: File: "{0}" blknum 1, empty page'.format(file), content) self.assertNotIn( "Skipping blknum 1 in file: {0}".format(file), content) # Restore DELTA backup 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) if self.paranoia: 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) def test_delta_backup_from_past(self): """ make node, take FULL stream backup, take DELTA stream backup, restore FULL backup, try to take second DELTA stream backup """ 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']) backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup') self.init_pb(backup_dir) self.add_instance(backup_dir, 'node', node) node.slow_start() backup_id = self.backup_node( backup_dir, 'node', node, options=['--stream']) node.pgbench_init(scale=3) # First DELTA self.backup_node( backup_dir, 'node', node, backup_type='delta', options=['--stream']) # Restore FULL backup node.cleanup() self.restore_node(backup_dir, 'node', node, backup_id=backup_id) node.slow_start() # Second DELTA backup try: self.backup_node( backup_dir, 'node', node, backup_type='delta', options=['--stream']) # we should die here because exception is what we expect to happen self.assertEqual( 1, 0, "Expecting Error because we are backing up an instance from the past" "\n Output: {0} \n CMD: {1}".format( repr(self.output), self.cmd)) except ProbackupException as e: self.assertTrue( 'ERROR: Current START LSN ' in e.message and 'is lower than START LSN ' in e.message and 'of previous backup ' in e.message and 'It may indicate that we are trying ' 'to backup PostgreSQL instance from the past' 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_delta_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) 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, options=['--stream']) node.safe_psql( 'postgres', "update t_heap set id = nextval('t_seq'), text = md5(text), " "tsvector = md5(repeat(tsvector::text, 10))::tsvector") # 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='delta', options=['--stream']) try: self.backup_node( backup_dir, 'node', node, backup_type='delta', options=['--stream']) # 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)