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mirror of https://github.com/postgrespro/pg_probackup.git synced 2024-12-11 11:41:33 +02:00
pg_probackup/tests/ptrack_vacuum_bits_visibility.py
2017-07-12 17:28:28 +03:00

68 lines
3.0 KiB
Python

import os
import unittest
from .helpers.ptrack_helpers import ProbackupTest, idx_ptrack
module_name = 'ptrack_vacuum_bits_visibility'
class SimpleTest(ProbackupTest, unittest.TestCase):
# @unittest.skip("skip")
# @unittest.expectedFailure
def test_ptrack_vacuum_bits_visibility(self):
fname = self.id().split('.')[3]
node = self.make_simple_node(base_dir="{0}/{1}/node".format(module_name, fname),
set_replication=True,
initdb_params=['--data-checksums'],
pg_options={'ptrack_enable': 'on', 'wal_level': 'replica', 'max_wal_senders': '2'})
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.start()
self.create_tblspace_in_node(node, 'somedata')
# Create table and indexes
res = 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(0,256) i")
for i in idx_ptrack:
if idx_ptrack[i]['type'] != 'heap' and idx_ptrack[i]['type'] != 'seq':
node.safe_psql("postgres", "create index {0} on {1} using {2}({3}) tablespace somedata".format(
i, idx_ptrack[i]['relation'], idx_ptrack[i]['type'], idx_ptrack[i]['column']))
node.safe_psql('postgres', 'checkpoint')
for i in idx_ptrack:
# get size of heap and indexes. size calculated in pages
idx_ptrack[i]['old_size'] = self.get_fork_size(node, i)
# get path to heap and index files
idx_ptrack[i]['path'] = self.get_fork_path(node, i)
# calculate md5sums of pages
idx_ptrack[i]['old_pages'] = self.get_md5_per_page_for_fork(
idx_ptrack[i]['path'], idx_ptrack[i]['old_size'])
self.backup_node(backup_dir, 'node', node, options=['-j100', '--stream'])
node.safe_psql('postgres', 'vacuum t_heap')
node.safe_psql('postgres', 'checkpoint')
for i in idx_ptrack:
# get new size of heap and indexes. size calculated in pages
idx_ptrack[i]['new_size'] = self.get_fork_size(node, i)
# update path to heap and index files in case they`ve changed
idx_ptrack[i]['path'] = self.get_fork_path(node, i)
# calculate new md5sums for pages
idx_ptrack[i]['new_pages'] = self.get_md5_per_page_for_fork(
idx_ptrack[i]['path'], idx_ptrack[i]['new_size'])
# get ptrack for every idx
idx_ptrack[i]['ptrack'] = self.get_ptrack_bits_per_page_for_fork(
node, idx_ptrack[i]['path'], [idx_ptrack[i]['old_size'], idx_ptrack[i]['new_size']])
# compare pages and check ptrack sanity
self.check_ptrack_sanity(idx_ptrack[i])
# Clean after yourself
self.del_test_dir(module_name, fname)