import os import unittest from .helpers.ptrack_helpers import ProbackupTest, ProbackupException, idx_ptrack from datetime import datetime, timedelta import subprocess module_name = 'compression' class CompressionTest(ProbackupTest, unittest.TestCase): # @unittest.skip("skip") # @unittest.expectedFailure def test_compression_stream_zlib(self): """ make archive node, make full and page stream backups, check data correctness in restored instance """ 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_senders': '2', 'checkpoint_timeout': '30s', 'ptrack_enable': 'on'} ) 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(repeat(i::text,10))::tsvector as tsvector " "from generate_series(0,256) 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', '--compress-algorithm=zlib']) # PAGE BACKUP 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(256,512) 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', '--compress-algorithm=zlib']) # PTRACK BACKUP 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(512,768) i") ptrack_result = node.execute("postgres", "SELECT * FROM t_heap") ptrack_backup_id = self.backup_node( backup_dir, 'node', node, backup_type='ptrack', options=['--stream', '--compress-algorithm=zlib']) # 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 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)) node.slow_start() page_result_new = node.execute("postgres", "SELECT * FROM t_heap") self.assertEqual(page_result, page_result_new) node.cleanup() # Check ptrack backup self.assertIn( "INFO: Restore of backup {0} completed.".format(ptrack_backup_id), self.restore_node( backup_dir, 'node', node, backup_id=ptrack_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() ptrack_result_new = node.execute("postgres", "SELECT * FROM t_heap") self.assertEqual(ptrack_result, ptrack_result_new) node.cleanup() # Clean after yourself self.del_test_dir(module_name, fname) def test_compression_archive_zlib(self): """ make archive node, make full and page backups, check data correctness in restored instance """ 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', 'ptrack_enable': 'on'} ) 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', options=["--compress-algorithm=zlib"]) # 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(0,2) i") page_result = node.execute("postgres", "SELECT * FROM t_heap") page_backup_id = self.backup_node( backup_dir, 'node', node, backup_type='page', options=["--compress-algorithm=zlib"]) # PTRACK 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(0,3) i") ptrack_result = node.execute("postgres", "SELECT * FROM t_heap") ptrack_backup_id = self.backup_node( backup_dir, 'node', node, backup_type='ptrack', options=['--compress-algorithm=zlib']) # 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 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)) node.slow_start() page_result_new = node.execute("postgres", "SELECT * FROM t_heap") self.assertEqual(page_result, page_result_new) node.cleanup() # Check ptrack backup self.assertIn( "INFO: Restore of backup {0} completed.".format(ptrack_backup_id), self.restore_node( backup_dir, 'node', node, backup_id=ptrack_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() ptrack_result_new = node.execute("postgres", "SELECT * FROM t_heap") self.assertEqual(ptrack_result, ptrack_result_new) node.cleanup() # Clean after yourself self.del_test_dir(module_name, fname) def test_compression_stream_pglz(self): """ make archive node, make full and page stream backups, check data correctness in restored instance """ 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_senders': '2', 'checkpoint_timeout': '30s', 'ptrack_enable': 'on'} ) 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(repeat(i::text,10))::tsvector as tsvector " "from generate_series(0,256) 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', '--compress-algorithm=pglz']) # PAGE BACKUP 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(256,512) 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', '--compress-algorithm=pglz']) # PTRACK BACKUP 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(512,768) i") ptrack_result = node.execute("postgres", "SELECT * FROM t_heap") ptrack_backup_id = self.backup_node( backup_dir, 'node', node, backup_type='ptrack', options=['--stream', '--compress-algorithm=pglz']) # 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 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)) node.slow_start() page_result_new = node.execute("postgres", "SELECT * FROM t_heap") self.assertEqual(page_result, page_result_new) node.cleanup() # Check ptrack backup self.assertIn( "INFO: Restore of backup {0} completed.".format(ptrack_backup_id), self.restore_node( backup_dir, 'node', node, backup_id=ptrack_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() ptrack_result_new = node.execute("postgres", "SELECT * FROM t_heap") self.assertEqual(ptrack_result, ptrack_result_new) node.cleanup() # Clean after yourself self.del_test_dir(module_name, fname) def test_compression_archive_pglz(self): """ make archive node, make full and page backups, check data correctness in restored instance """ 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_senders': '2', 'checkpoint_timeout': '30s', 'ptrack_enable': 'on'} ) 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=['--compress-algorithm=pglz']) # 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=['--compress-algorithm=pglz']) # PTRACK 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(200,300) i") ptrack_result = node.execute("postgres", "SELECT * FROM t_heap") ptrack_backup_id = self.backup_node( backup_dir, 'node', node, backup_type='ptrack', options=['--compress-algorithm=pglz']) # 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 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)) node.slow_start() page_result_new = node.execute("postgres", "SELECT * FROM t_heap") self.assertEqual(page_result, page_result_new) node.cleanup() # Check ptrack backup self.assertIn( "INFO: Restore of backup {0} completed.".format(ptrack_backup_id), self.restore_node( backup_dir, 'node', node, backup_id=ptrack_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() ptrack_result_new = node.execute("postgres", "SELECT * FROM t_heap") self.assertEqual(ptrack_result, ptrack_result_new) node.cleanup() # Clean after yourself self.del_test_dir(module_name, fname) def test_compression_wrong_algorithm(self): """ make archive node, make full and page backups, check data correctness in restored instance """ 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_senders': '2', 'checkpoint_timeout': '30s', 'ptrack_enable': 'on'} ) self.init_pb(backup_dir) self.add_instance(backup_dir, 'node', node) self.set_archiving(backup_dir, 'node', node) node.slow_start() try: self.backup_node( backup_dir, 'node', node, backup_type='full', options=['--compress-algorithm=bla-blah']) # we should die here because exception is what we expect to happen self.assertEqual( 1, 0, "Expecting Error because compress-algorithm is invalid.\n " "Output: {0} \n CMD: {1}".format( repr(self.output), self.cmd)) except ProbackupException as e: self.assertEqual( e.message, 'ERROR: invalid compress algorithm value "bla-blah"\n', '\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_uncompressable_pages(self): """ make archive node, create table with uncompressable toast pages, take backup with compression, make sure that page was not compressed, restore 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']) self.init_pb(backup_dir) self.add_instance(backup_dir, 'node', node) self.set_archiving(backup_dir, 'node', node) node.slow_start() # Full self.backup_node( backup_dir, 'node', node, options=[ '--compress-algorithm=zlib', '--compress-level=0']) node.pgbench_init(scale=3) self.backup_node( backup_dir, 'node', node, backup_type='delta', options=[ '--compress-algorithm=zlib', '--compress-level=0']) pgdata = self.pgdata_content(node.data_dir) node.cleanup() self.restore_node(backup_dir, 'node', node) # Physical comparison if self.paranoia: pgdata_restored = self.pgdata_content(node.data_dir) self.compare_pgdata(pgdata, pgdata_restored) node.slow_start() # Clean after yourself self.del_test_dir(module_name, fname)