mirror of
https://github.com/postgrespro/pg_probackup.git
synced 2024-12-01 09:51:43 +02:00
131 lines
6.1 KiB
Python
131 lines
6.1 KiB
Python
import os
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import unittest
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from .helpers.ptrack_helpers import ProbackupTest, idx_ptrack
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module_name = 'ptrack_truncate'
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class SimpleTest(ProbackupTest, unittest.TestCase):
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# @unittest.skip("skip")
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# @unittest.expectedFailure
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def test_ptrack_truncate(self):
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fname = self.id().split('.')[3]
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node = self.make_simple_node(base_dir="{0}/{1}/node".format(module_name, fname),
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set_replication=True,
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initdb_params=['--data-checksums'],
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pg_options={'ptrack_enable': 'on', 'wal_level': 'replica', 'max_wal_senders': '2'})
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backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
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self.init_pb(backup_dir)
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self.add_instance(backup_dir, 'node', node)
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node.start()
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self.create_tblspace_in_node(node, 'somedata')
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# Create table and indexes
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node.safe_psql(
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"postgres",
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"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(0,256) i")
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for i in idx_ptrack:
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if idx_ptrack[i]['type'] != 'heap' and idx_ptrack[i]['type'] != 'seq':
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node.safe_psql("postgres", "create index {0} on {1} using {2}({3}) tablespace somedata".format(
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i, idx_ptrack[i]['relation'], idx_ptrack[i]['type'], idx_ptrack[i]['column']))
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node.safe_psql('postgres', 'truncate t_heap')
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node.safe_psql('postgres', 'checkpoint')
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for i in idx_ptrack:
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# get fork size and calculate it in pages
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idx_ptrack[i]['old_size'] = self.get_fork_size(node, i)
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# get path to heap and index files
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idx_ptrack[i]['path'] = self.get_fork_path(node, i)
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# calculate md5sums for every page of this fork
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idx_ptrack[i]['old_pages'] = self.get_md5_per_page_for_fork(
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idx_ptrack[i]['path'], idx_ptrack[i]['old_size'])
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# Make full backup to clean every ptrack
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self.backup_node(backup_dir, 'node', node, options=['-j10', '--stream'])
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for i in idx_ptrack:
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idx_ptrack[i]['ptrack'] = self.get_ptrack_bits_per_page_for_fork(
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node, idx_ptrack[i]['path'], [idx_ptrack[i]['old_size']])
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self.check_ptrack_clean(idx_ptrack[i], idx_ptrack[i]['old_size'])
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# Clean after yourself
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self.del_test_dir(module_name, fname)
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# @unittest.skip("skip")
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def test_ptrack_truncate_replica(self):
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fname = self.id().split('.')[3]
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master = self.make_simple_node(base_dir="{0}/{1}/master".format(module_name, fname),
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set_replication=True,
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initdb_params=['--data-checksums'],
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pg_options={'ptrack_enable': 'on', 'wal_level': 'replica', 'max_wal_senders': '2'})
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backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
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self.init_pb(backup_dir)
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self.add_instance(backup_dir, 'master', master)
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master.start()
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self.backup_node(backup_dir, 'master', master, options=['--stream'])
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replica = self.make_simple_node(base_dir="{0}/{1}/replica".format(module_name, fname))
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replica.cleanup()
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self.restore_node(backup_dir, 'master', replica)
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self.add_instance(backup_dir, 'replica', replica)
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self.set_replica(master, replica, 'replica', synchronous=True)
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self.set_archiving(backup_dir, 'replica', replica, replica=True)
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replica.start()
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# Create table and indexes
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master.safe_psql(
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"postgres",
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"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(0,256) i")
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for i in idx_ptrack:
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if idx_ptrack[i]['type'] != 'heap' and idx_ptrack[i]['type'] != 'seq':
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master.safe_psql("postgres", "create index {0} on {1} using {2}({3}) tablespace somedata".format(
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i, idx_ptrack[i]['relation'], idx_ptrack[i]['type'], idx_ptrack[i]['column']))
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replica.safe_psql('postgres', 'truncate t_heap')
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replica.safe_psql('postgres', 'checkpoint')
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for i in idx_ptrack:
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# get fork size and calculate it in pages
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idx_ptrack[i]['old_size'] = self.get_fork_size(replica, i)
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# get path to heap and index files
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idx_ptrack[i]['path'] = self.get_fork_path(replica, i)
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# calculate md5sums for every page of this fork
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idx_ptrack[i]['old_pages'] = self.get_md5_per_page_for_fork(
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idx_ptrack[i]['path'], idx_ptrack[i]['old_size'])
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# Make full backup to clean every ptrack
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self.backup_node(backup_dir, 'replica', replica, options=['-j10', '--stream'])
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for i in idx_ptrack:
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idx_ptrack[i]['ptrack'] = self.get_ptrack_bits_per_page_for_fork(
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replica, idx_ptrack[i]['path'], [idx_ptrack[i]['old_size']])
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self.check_ptrack_clean(idx_ptrack[i], idx_ptrack[i]['old_size'])
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# Delete some rows, vacuum it and make checkpoint
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master.safe_psql('postgres', 'delete from t_heap where id%2 = 1')
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master.safe_psql('postgres', 'vacuum t_heap')
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master.safe_psql('postgres', 'checkpoint')
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for i in idx_ptrack:
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# get new size of heap and indexes and calculate it in pages
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idx_ptrack[i]['new_size'] = self.get_fork_size(replica, i)
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# update path to heap and index files in case they`ve changed
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idx_ptrack[i]['path'] = self.get_fork_path(replica, i)
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# calculate new md5sums for pages
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idx_ptrack[i]['new_pages'] = self.get_md5_per_page_for_fork(
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idx_ptrack[i]['path'], idx_ptrack[i]['new_size'])
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# get ptrack for every idx
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idx_ptrack[i]['ptrack'] = self.get_ptrack_bits_per_page_for_fork(
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replica, idx_ptrack[i]['path'], [idx_ptrack[i]['old_size'], idx_ptrack[i]['new_size']])
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# compare pages and check ptrack sanity
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self.check_ptrack_sanity(idx_ptrack[i])
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# Clean after yourself
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self.del_test_dir(module_name, fname)
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