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pg_probackup/tests/pgpro589.py

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import os
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import unittest
from .helpers.ptrack_helpers import ProbackupTest, ProbackupException, idx_ptrack
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from datetime import datetime, timedelta
import subprocess
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module_name = 'pgpro589'
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class ArchiveCheck(ProbackupTest, unittest.TestCase):
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def test_pgpro589(self):
"""
https://jira.postgrespro.ru/browse/PGPRO-589
make node without archive support, make backup which should fail
check that backup status equal to ERROR
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check that no files where copied to backup catalogue
"""
fname = self.id().split('.')[3]
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node = self.make_simple_node(
base_dir=os.path.join(module_name, fname, 'node'),
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initdb_params=['--data-checksums'])
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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)
self.add_instance(backup_dir, 'node', node)
self.set_archiving(backup_dir, 'node', node)
# make erroneous archive_command
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self.set_auto_conf(node, {'archive_command': 'exit 0'})
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node.slow_start()
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node.pgbench_init(scale=5)
pgbench = node.pgbench(
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
options=["-c", "4", "-T", "10"]
)
pgbench.wait()
pgbench.stdout.close()
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path = node.safe_psql(
"postgres",
"select pg_relation_filepath('pgbench_accounts')").rstrip().decode(
"utf-8")
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try:
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self.backup_node(
backup_dir, 'node', node,
options=['--archive-timeout=10'])
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# we should die here because exception is what we expect to happen
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self.assertEqual(
1, 0,
"Expecting Error because of missing archive wal "
"segment with start_lsn.\n Output: {0} \n CMD: {1}".format(
repr(self.output), self.cmd))
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except ProbackupException as e:
self.assertTrue(
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'INFO: Wait for WAL segment' in e.message and
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'ERROR: WAL segment' in e.message and
'could not be archived in 10 seconds' in e.message,
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'\n Unexpected Error Message: {0}\n CMD: {1}'.format(
repr(e.message), self.cmd))
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backup_id = self.show_pb(backup_dir, 'node')[0]['id']
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self.assertEqual(
'ERROR', self.show_pb(backup_dir, 'node', backup_id)['status'],
'Backup should have ERROR status')
file = os.path.join(
backup_dir, 'backups', 'node',
backup_id, 'database', path)
self.assertFalse(
os.path.isfile(file),
"\n Start LSN was not found in archive but datafiles where "
"copied to backup catalogue.\n For example: {0}\n "
"It is not optimal".format(file))
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# Clean after yourself
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self.del_test_dir(module_name, fname)