import os import unittest from .helpers.ptrack_helpers import ProbackupTest, ProbackupException from datetime import datetime, timedelta import subprocess, time module_name = 'page' class PageBackupTest(ProbackupTest, unittest.TestCase): # # @unittest.skip("skip") # # @unittest.expectedFailure # def test_page_check_archive_enabled(self): # """make node, take page backup without enabled archive, should result in error""" # 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="{0}/{1}/node".format(module_name, fname), # set_replication=True, # initdb_params=['--data-checksums'], # pg_options={'wal_level': 'replica', 'max_wal_senders': '2', 'checkpoint_timeout': '30s', 'ptrack_enable': 'on'} # ) # # self.init_pb(backup_dir) # self.add_instance(backup_dir, 'node', node) # node.start() # # try: # self.backup_node(backup_dir, 'node', node, backup_type='page', options=['--stream']) # # we should die here because exception is what we expect to happen # self.assertEqual(1, 0, "Expecting Error because archive_mode disabled.\n Output: {0} \n CMD: {1}".format( # repr(self.output), self.cmd)) # except ProbackupException as e: # self.assertIn('ERROR: Archiving must be enabled for PAGE backup\n', 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_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="{0}/{1}/node".format(module_name, fname), set_replication=True, initdb_params=['--data-checksums'], pg_options={'wal_level': 'replica', '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.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']) # 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.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)) node.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="{0}/{1}/node".format(module_name, fname), set_replication=True, initdb_params=['--data-checksums'], pg_options={'wal_level': 'replica', '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.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') #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') # 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"]), '\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(self.output), self.cmd)) node.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"]), '\n Unexpected Error Message: {0}\n CMD: {1}'.format(repr(self.output), self.cmd)) node.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="{0}/{1}/node".format(module_name, fname), set_replication=True, initdb_params=['--data-checksums'], pg_options={'wal_level': 'replica', 'max_wal_senders': '2', 'ptrack_enable': 'on', '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.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', '150', '-c', '2', '--no-vacuum']) pgbench.wait() node.safe_psql("postgres", "checkpoint") # 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', options=["--log-level-file=verbose"]) # GET PHYSICAL CONTENT FROM NODE pgdata = self.pgdata_content(node.data_dir) # RESTORE NODE restored_node = self.make_simple_node(base_dir="{0}/{1}/restored_node".format(module_name, fname)) 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 restored_node.append_conf("postgresql.auto.conf", "port = {0}".format(restored_node.port)) restored_node.start() while restored_node.safe_psql("postgres", "select pg_is_in_recovery()") == 't\n': time.sleep(1) 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)