mirror of
https://github.com/postgrespro/pg_probackup.git
synced 2024-12-03 09:59:53 +02:00
1274 lines
43 KiB
Python
1274 lines
43 KiB
Python
# you need os for unittest to work
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import os
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from sys import exit, argv, version_info
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import subprocess
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import shutil
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import six
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import testgres
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import hashlib
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import re
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import pwd
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import select
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import psycopg2
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from time import sleep
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import re
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import json
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idx_ptrack = {
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't_heap': {
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'type': 'heap'
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},
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't_btree': {
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'type': 'btree',
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'column': 'text',
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'relation': 't_heap'
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},
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't_seq': {
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'type': 'seq',
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'column': 't_seq',
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'relation': 't_heap'
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},
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't_spgist': {
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'type': 'spgist',
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'column': 'text',
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'relation': 't_heap'
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},
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't_brin': {
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'type': 'brin',
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'column': 'text',
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'relation': 't_heap'
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},
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't_gist': {
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'type': 'gist',
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'column': 'tsvector',
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'relation': 't_heap'
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},
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't_gin': {
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'type': 'gin',
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'column': 'tsvector',
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'relation': 't_heap'
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},
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}
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archive_script = """
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#!/bin/bash
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count=$(ls {backup_dir}/test00* | wc -l)
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if [ $count -ge {count_limit} ]
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then
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exit 1
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else
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cp $1 {backup_dir}/wal/{node_name}/$2
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count=$((count+1))
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touch {backup_dir}/test00$count
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exit 0
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fi
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"""
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warning = """
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Wrong splint in show_pb
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Original Header:
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{header}
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Original Body:
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{body}
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Splitted Header
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{header_split}
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Splitted Body
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{body_split}
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"""
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def dir_files(base_dir):
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out_list = []
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for dir_name, subdir_list, file_list in os.walk(base_dir):
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if dir_name != base_dir:
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out_list.append(os.path.relpath(dir_name, base_dir))
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for fname in file_list:
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out_list.append(
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os.path.relpath(os.path.join(
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dir_name, fname), base_dir)
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)
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out_list.sort()
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return out_list
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def is_enterprise():
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# pg_config --help
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p = subprocess.Popen(
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[os.environ['PG_CONFIG'], '--help'],
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE
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)
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if b'postgrespro.ru' in p.communicate()[0]:
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return True
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else:
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return False
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class ProbackupException(Exception):
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def __init__(self, message, cmd):
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self.message = message
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self.cmd = cmd
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def __str__(self):
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return '\n ERROR: {0}\n CMD: {1}'.format(repr(self.message), self.cmd)
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def slow_start(self, replica=False):
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# wait for https://github.com/postgrespro/testgres/pull/50
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# self.poll_query_until(
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# "postgres",
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# "SELECT not pg_is_in_recovery()",
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# raise_operational_error=False)
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self.start()
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if not replica:
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while True:
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try:
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self.poll_query_until(
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"postgres",
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"SELECT not pg_is_in_recovery()")
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break
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except Exception as e:
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continue
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else:
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while True:
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try:
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self.poll_query_until(
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"postgres",
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"SELECT pg_is_in_recovery()")
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break
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except Exception as e:
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continue
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class ProbackupTest(object):
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# Class attributes
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enterprise = is_enterprise()
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def __init__(self, *args, **kwargs):
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super(ProbackupTest, self).__init__(*args, **kwargs)
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if '-v' in argv or '--verbose' in argv:
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self.verbose = True
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else:
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self.verbose = False
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self.test_env = os.environ.copy()
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envs_list = [
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"LANGUAGE",
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"LC_ALL",
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"PGCONNECT_TIMEOUT",
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"PGDATA",
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"PGDATABASE",
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"PGHOSTADDR",
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"PGREQUIRESSL",
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"PGSERVICE",
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"PGSSLMODE",
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"PGUSER",
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"PGPORT",
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"PGHOST"
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]
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for e in envs_list:
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try:
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del self.test_env[e]
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except:
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pass
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self.test_env["LC_MESSAGES"] = "C"
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self.test_env["LC_TIME"] = "C"
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self.paranoia = False
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if 'PG_PROBACKUP_PARANOIA' in self.test_env:
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if self.test_env['PG_PROBACKUP_PARANOIA'] == 'ON':
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self.paranoia = True
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self.archive_compress = False
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if 'ARCHIVE_COMPRESSION' in self.test_env:
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if self.test_env['ARCHIVE_COMPRESSION'] == 'ON':
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self.archive_compress = True
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try:
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testgres.configure_testgres(
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cache_initdb=False,
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cached_initdb_dir=False,
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cache_pg_config=False,
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node_cleanup_full=False)
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except:
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pass
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self.helpers_path = os.path.dirname(os.path.realpath(__file__))
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self.dir_path = os.path.abspath(
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os.path.join(self.helpers_path, os.pardir)
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)
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self.tmp_path = os.path.abspath(
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os.path.join(self.dir_path, 'tmp_dirs')
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)
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try:
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os.makedirs(os.path.join(self.dir_path, 'tmp_dirs'))
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except:
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pass
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self.user = self.get_username()
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self.probackup_path = None
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if "PGPROBACKUPBIN" in self.test_env:
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if (
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os.path.isfile(self.test_env["PGPROBACKUPBIN"]) and
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os.access(self.test_env["PGPROBACKUPBIN"], os.X_OK)
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):
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self.probackup_path = self.test_env["PGPROBACKUPBIN"]
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else:
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if self.verbose:
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print('PGPROBINDIR is not an executable file')
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if not self.probackup_path:
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self.probackup_path = os.path.abspath(os.path.join(
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self.dir_path, "../pg_probackup"))
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def make_simple_node(
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self,
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base_dir=None,
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set_replication=False,
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initdb_params=[],
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pg_options={}):
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real_base_dir = os.path.join(self.tmp_path, base_dir)
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shutil.rmtree(real_base_dir, ignore_errors=True)
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os.makedirs(real_base_dir)
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node = testgres.get_new_node('test', base_dir=real_base_dir)
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# bound method slow_start() to 'node' class instance
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node.slow_start = slow_start.__get__(node)
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node.should_rm_dirs = True
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node.init(
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initdb_params=initdb_params, allow_streaming=set_replication)
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# Sane default parameters
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node.append_conf("postgresql.auto.conf", "max_connections = 100")
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node.append_conf("postgresql.auto.conf", "shared_buffers = 10MB")
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node.append_conf("postgresql.auto.conf", "fsync = on")
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node.append_conf("postgresql.auto.conf", "wal_level = logical")
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node.append_conf("postgresql.auto.conf", "hot_standby = 'off'")
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node.append_conf(
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"postgresql.auto.conf", "log_line_prefix = '%t [%p]: [%l-1] '")
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node.append_conf("postgresql.auto.conf", "log_statement = none")
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node.append_conf("postgresql.auto.conf", "log_duration = on")
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node.append_conf(
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"postgresql.auto.conf", "log_min_duration_statement = 0")
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node.append_conf("postgresql.auto.conf", "log_connections = on")
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node.append_conf("postgresql.auto.conf", "log_disconnections = on")
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# Apply given parameters
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for key, value in six.iteritems(pg_options):
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node.append_conf("postgresql.auto.conf", "%s = %s" % (key, value))
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# Allow replication in pg_hba.conf
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if set_replication:
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node.append_conf(
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"pg_hba.conf",
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"local replication all trust\n")
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node.append_conf(
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"postgresql.auto.conf",
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"max_wal_senders = 10")
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return node
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def create_tblspace_in_node(self, node, tblspc_name, tblspc_path=None, cfs=False):
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res = node.execute(
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"postgres",
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"select exists"
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" (select 1 from pg_tablespace where spcname = '{0}')".format(
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tblspc_name)
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)
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# Check that tablespace with name 'tblspc_name' do not exists already
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self.assertFalse(
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res[0][0],
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'Tablespace "{0}" already exists'.format(tblspc_name)
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)
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if not tblspc_path:
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tblspc_path = os.path.join(
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node.base_dir, '{0}'.format(tblspc_name))
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cmd = "CREATE TABLESPACE {0} LOCATION '{1}'".format(
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tblspc_name, tblspc_path)
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if cfs:
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cmd += " with (compression=true)"
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if not os.path.exists(tblspc_path):
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os.makedirs(tblspc_path)
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res = node.safe_psql("postgres", cmd)
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# Check that tablespace was successfully created
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# self.assertEqual(
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# res[0], 0,
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# 'Failed to create tablespace with cmd: {0}'.format(cmd))
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def get_tblspace_path(self, node, tblspc_name):
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return os.path.join(node.base_dir, tblspc_name)
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def get_fork_size(self, node, fork_name):
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return node.execute(
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"postgres",
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"select pg_relation_size('{0}')/8192".format(fork_name))[0][0]
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def get_fork_path(self, node, fork_name):
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return os.path.join(
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node.base_dir, 'data', node.execute(
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"postgres",
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"select pg_relation_filepath('{0}')".format(
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fork_name))[0][0]
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)
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def get_md5_per_page_for_fork(self, file, size_in_pages):
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pages_per_segment = {}
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md5_per_page = {}
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nsegments = size_in_pages/131072
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if size_in_pages % 131072 != 0:
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nsegments = nsegments + 1
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size = size_in_pages
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for segment_number in range(nsegments):
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if size - 131072 > 0:
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pages_per_segment[segment_number] = 131072
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else:
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pages_per_segment[segment_number] = size
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size = size - 131072
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for segment_number in range(nsegments):
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offset = 0
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if segment_number == 0:
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file_desc = os.open(file, os.O_RDONLY)
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start_page = 0
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end_page = pages_per_segment[segment_number]
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else:
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file_desc = os.open(
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file+".{0}".format(segment_number), os.O_RDONLY
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)
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start_page = max(md5_per_page)+1
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end_page = end_page + pages_per_segment[segment_number]
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for page in range(start_page, end_page):
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md5_per_page[page] = hashlib.md5(
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os.read(file_desc, 8192)).hexdigest()
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offset += 8192
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os.lseek(file_desc, offset, 0)
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os.close(file_desc)
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return md5_per_page
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def get_ptrack_bits_per_page_for_fork(self, node, file, size=[]):
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if self.get_pgpro_edition(node) == 'enterprise':
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header_size = 48
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else:
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header_size = 24
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ptrack_bits_for_fork = []
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page_body_size = 8192-header_size
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byte_size = os.path.getsize(file + '_ptrack')
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npages = byte_size/8192
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if byte_size % 8192 != 0:
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print('Ptrack page is not 8k aligned')
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sys.exit(1)
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file = os.open(file + '_ptrack', os.O_RDONLY)
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for page in range(npages):
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offset = 8192*page+header_size
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os.lseek(file, offset, 0)
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lots_of_bytes = os.read(file, page_body_size)
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byte_list = [
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lots_of_bytes[i:i+1] for i in range(len(lots_of_bytes))
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]
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for byte in byte_list:
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# byte_inverted = bin(int(byte, base=16))[2:][::-1]
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# bits = (byte >> x) & 1 for x in range(7, -1, -1)
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byte_inverted = bin(ord(byte))[2:].rjust(8, '0')[::-1]
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for bit in byte_inverted:
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# if len(ptrack_bits_for_fork) < size:
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ptrack_bits_for_fork.append(int(bit))
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os.close(file)
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return ptrack_bits_for_fork
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def check_ptrack_sanity(self, idx_dict):
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success = True
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if idx_dict['new_size'] > idx_dict['old_size']:
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size = idx_dict['new_size']
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else:
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size = idx_dict['old_size']
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for PageNum in range(size):
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if PageNum not in idx_dict['old_pages']:
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# Page was not present before, meaning that relation got bigger
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# Ptrack should be equal to 1
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if idx_dict['ptrack'][PageNum] != 1:
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if self.verbose:
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print(
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'Page Number {0} of type {1} was added,'
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' but ptrack value is {2}. THIS IS BAD'.format(
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PageNum, idx_dict['type'],
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idx_dict['ptrack'][PageNum])
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)
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# print(idx_dict)
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success = False
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continue
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if PageNum not in idx_dict['new_pages']:
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# Page is not present now, meaning that relation got smaller
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# Ptrack should be equal to 0,
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# We are not freaking out about false positive stuff
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if idx_dict['ptrack'][PageNum] != 0:
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if self.verbose:
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print(
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'Page Number {0} of type {1} was deleted,'
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' but ptrack value is {2}'.format(
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PageNum, idx_dict['type'],
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idx_dict['ptrack'][PageNum])
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)
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continue
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# Ok, all pages in new_pages that do not have
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# corresponding page in old_pages are been dealt with.
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# We can now safely proceed to comparing old and new pages
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if idx_dict['new_pages'][
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PageNum] != idx_dict['old_pages'][PageNum]:
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# Page has been changed,
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# meaning that ptrack should be equal to 1
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if idx_dict['ptrack'][PageNum] != 1:
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if self.verbose:
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print(
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'Page Number {0} of type {1} was changed,'
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' but ptrack value is {2}. THIS IS BAD'.format(
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PageNum, idx_dict['type'],
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idx_dict['ptrack'][PageNum])
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)
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print(
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"\n Old checksumm: {0}\n"
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" New checksumm: {1}".format(
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idx_dict['old_pages'][PageNum],
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idx_dict['new_pages'][PageNum])
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)
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|
|
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if PageNum == 0 and idx_dict['type'] == 'spgist':
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if self.verbose:
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print(
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'SPGIST is a special snowflake, so don`t '
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'fret about losing ptrack for blknum 0'
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)
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continue
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success = False
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else:
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# Page has not been changed,
|
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# meaning that ptrack should be equal to 0
|
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if idx_dict['ptrack'][PageNum] != 0:
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if self.verbose:
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print(
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'Page Number {0} of type {1} was not changed,'
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' but ptrack value is {2}'.format(
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PageNum, idx_dict['type'],
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idx_dict['ptrack'][PageNum]
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)
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)
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|
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self.assertTrue(
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success, 'Ptrack does not correspond to state'
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' of its own pages.\n Gory Details: \n{0}'.format(
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idx_dict['type'], idx_dict
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)
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)
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def check_ptrack_recovery(self, idx_dict):
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size = idx_dict['size']
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for PageNum in range(size):
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if idx_dict['ptrack'][PageNum] != 1:
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self.assertTrue(
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False,
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'Recovery for Page Number {0} of Type {1}'
|
|
' was conducted, but ptrack value is {2}.'
|
|
' THIS IS BAD\n IDX_DICT: {3}'.format(
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PageNum, idx_dict['type'],
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idx_dict['ptrack'][PageNum],
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idx_dict
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)
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)
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|
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def check_ptrack_clean(self, idx_dict, size):
|
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for PageNum in range(size):
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if idx_dict['ptrack'][PageNum] != 0:
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self.assertTrue(
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False,
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'Ptrack for Page Number {0} of Type {1}'
|
|
' should be clean, but ptrack value is {2}.'
|
|
'\n THIS IS BAD\n IDX_DICT: {3}'.format(
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PageNum,
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idx_dict['type'],
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idx_dict['ptrack'][PageNum],
|
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idx_dict
|
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)
|
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)
|
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|
|
def run_pb(self, command, async=False, gdb=False):
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try:
|
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self.cmd = [' '.join(map(str, [self.probackup_path] + command))]
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|
if self.verbose:
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print(self.cmd)
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if gdb:
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|
return GDBobj([self.probackup_path] + command, self.verbose)
|
|
if async:
|
|
return subprocess.Popen(
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self.cmd,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
env=self.test_env
|
|
)
|
|
else:
|
|
self.output = subprocess.check_output(
|
|
[self.probackup_path] + command,
|
|
stderr=subprocess.STDOUT,
|
|
env=self.test_env
|
|
).decode("utf-8")
|
|
if command[0] == 'backup':
|
|
# return backup ID
|
|
for line in self.output.splitlines():
|
|
if 'INFO: Backup' and 'completed' in line:
|
|
return line.split()[2]
|
|
else:
|
|
return self.output
|
|
except subprocess.CalledProcessError as e:
|
|
raise ProbackupException(e.output.decode("utf-8"), self.cmd)
|
|
|
|
def run_binary(self, command, async=False):
|
|
if self.verbose:
|
|
print([' '.join(map(str, command))])
|
|
try:
|
|
if async:
|
|
return subprocess.Popen(
|
|
command,
|
|
stdin=subprocess.PIPE,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
env=self.test_env
|
|
)
|
|
else:
|
|
self.output = subprocess.check_output(
|
|
command,
|
|
stderr=subprocess.STDOUT,
|
|
env=self.test_env
|
|
).decode("utf-8")
|
|
return self.output
|
|
except subprocess.CalledProcessError as e:
|
|
raise ProbackupException(e.output.decode("utf-8"), command)
|
|
|
|
def init_pb(self, backup_dir):
|
|
|
|
shutil.rmtree(backup_dir, ignore_errors=True)
|
|
return self.run_pb([
|
|
"init",
|
|
"-B", backup_dir
|
|
])
|
|
|
|
def add_instance(self, backup_dir, instance, node):
|
|
|
|
return self.run_pb([
|
|
"add-instance",
|
|
"--instance={0}".format(instance),
|
|
"-B", backup_dir,
|
|
"-D", node.data_dir
|
|
])
|
|
|
|
def del_instance(self, backup_dir, instance):
|
|
|
|
return self.run_pb([
|
|
"del-instance",
|
|
"--instance={0}".format(instance),
|
|
"-B", backup_dir
|
|
])
|
|
|
|
def clean_pb(self, backup_dir):
|
|
shutil.rmtree(backup_dir, ignore_errors=True)
|
|
|
|
def backup_node(
|
|
self, backup_dir, instance, node, data_dir=False,
|
|
backup_type="full", options=[], async=False, gdb=False
|
|
):
|
|
if not node and not data_dir:
|
|
print('You must provide ether node or data_dir for backup')
|
|
exit(1)
|
|
|
|
if node:
|
|
pgdata = node.data_dir
|
|
|
|
if data_dir:
|
|
pgdata = data_dir
|
|
|
|
cmd_list = [
|
|
"backup",
|
|
"-B", backup_dir,
|
|
# "-D", pgdata,
|
|
"-p", "%i" % node.port,
|
|
"-d", "postgres",
|
|
"--instance={0}".format(instance)
|
|
]
|
|
if backup_type:
|
|
cmd_list += ["-b", backup_type]
|
|
|
|
return self.run_pb(cmd_list + options, async, gdb)
|
|
|
|
def restore_node(
|
|
self, backup_dir, instance, node=False,
|
|
data_dir=None, backup_id=None, options=[]
|
|
):
|
|
if data_dir is None:
|
|
data_dir = node.data_dir
|
|
|
|
cmd_list = [
|
|
"restore",
|
|
"-B", backup_dir,
|
|
"-D", data_dir,
|
|
"--instance={0}".format(instance)
|
|
]
|
|
if backup_id:
|
|
cmd_list += ["-i", backup_id]
|
|
|
|
return self.run_pb(cmd_list + options)
|
|
|
|
def show_pb(
|
|
self, backup_dir, instance=None, backup_id=None,
|
|
options=[], as_text=False, as_json=True
|
|
):
|
|
|
|
backup_list = []
|
|
specific_record = {}
|
|
cmd_list = [
|
|
"show",
|
|
"-B", backup_dir,
|
|
]
|
|
if instance:
|
|
cmd_list += ["--instance={0}".format(instance)]
|
|
|
|
if backup_id:
|
|
cmd_list += ["-i", backup_id]
|
|
|
|
if as_json:
|
|
cmd_list += ["--format=json"]
|
|
|
|
if as_text:
|
|
# You should print it when calling as_text=true
|
|
return self.run_pb(cmd_list + options)
|
|
|
|
# get show result as list of lines
|
|
if as_json:
|
|
data = json.loads(self.run_pb(cmd_list + options))
|
|
# print(data)
|
|
for instance_data in data:
|
|
# find specific instance if requested
|
|
if instance and instance_data['instance'] != instance:
|
|
continue
|
|
|
|
for backup in reversed(instance_data['backups']):
|
|
# find specific backup if requested
|
|
if backup_id:
|
|
if backup['id'] == backup_id:
|
|
return backup
|
|
else:
|
|
backup_list.append(backup)
|
|
return backup_list
|
|
else:
|
|
show_splitted = self.run_pb(cmd_list + options).splitlines()
|
|
if instance is not None and backup_id is None:
|
|
# cut header(ID, Mode, etc) from show as single string
|
|
header = show_splitted[1:2][0]
|
|
# cut backup records from show as single list
|
|
# with string for every backup record
|
|
body = show_splitted[3:]
|
|
# inverse list so oldest record come first
|
|
body = body[::-1]
|
|
# split string in list with string for every header element
|
|
header_split = re.split(" +", header)
|
|
# Remove empty items
|
|
for i in header_split:
|
|
if i == '':
|
|
header_split.remove(i)
|
|
continue
|
|
header_split = [
|
|
header_element.rstrip() for header_element in header_split
|
|
]
|
|
for backup_record in body:
|
|
backup_record = backup_record.rstrip()
|
|
# split list with str for every backup record element
|
|
backup_record_split = re.split(" +", backup_record)
|
|
# Remove empty items
|
|
for i in backup_record_split:
|
|
if i == '':
|
|
backup_record_split.remove(i)
|
|
if len(header_split) != len(backup_record_split):
|
|
print(warning.format(
|
|
header=header, body=body,
|
|
header_split=header_split,
|
|
body_split=backup_record_split)
|
|
)
|
|
exit(1)
|
|
new_dict = dict(zip(header_split, backup_record_split))
|
|
backup_list.append(new_dict)
|
|
return backup_list
|
|
else:
|
|
# cut out empty lines and lines started with #
|
|
# and other garbage then reconstruct it as dictionary
|
|
# print show_splitted
|
|
sanitized_show = [item for item in show_splitted if item]
|
|
sanitized_show = [
|
|
item for item in sanitized_show if not item.startswith('#')
|
|
]
|
|
# print sanitized_show
|
|
for line in sanitized_show:
|
|
name, var = line.partition(" = ")[::2]
|
|
var = var.strip('"')
|
|
var = var.strip("'")
|
|
specific_record[name.strip()] = var
|
|
return specific_record
|
|
|
|
def validate_pb(
|
|
self, backup_dir, instance=None,
|
|
backup_id=None, options=[]
|
|
):
|
|
|
|
cmd_list = [
|
|
"validate",
|
|
"-B", backup_dir
|
|
]
|
|
if instance:
|
|
cmd_list += ["--instance={0}".format(instance)]
|
|
if backup_id:
|
|
cmd_list += ["-i", backup_id]
|
|
|
|
return self.run_pb(cmd_list + options)
|
|
|
|
def delete_pb(self, backup_dir, instance, backup_id=None, options=[]):
|
|
cmd_list = [
|
|
"delete",
|
|
"-B", backup_dir
|
|
]
|
|
|
|
cmd_list += ["--instance={0}".format(instance)]
|
|
if backup_id:
|
|
cmd_list += ["-i", backup_id]
|
|
|
|
return self.run_pb(cmd_list + options)
|
|
|
|
def delete_expired(self, backup_dir, instance, options=[]):
|
|
cmd_list = [
|
|
"delete", "--expired", "--wal",
|
|
"-B", backup_dir,
|
|
"--instance={0}".format(instance)
|
|
]
|
|
return self.run_pb(cmd_list + options)
|
|
|
|
def show_config(self, backup_dir, instance):
|
|
out_dict = {}
|
|
cmd_list = [
|
|
"show-config",
|
|
"-B", backup_dir,
|
|
"--instance={0}".format(instance)
|
|
]
|
|
res = self.run_pb(cmd_list).splitlines()
|
|
for line in res:
|
|
if not line.startswith('#'):
|
|
name, var = line.partition(" = ")[::2]
|
|
out_dict[name] = var
|
|
return out_dict
|
|
|
|
def get_recovery_conf(self, node):
|
|
out_dict = {}
|
|
with open(
|
|
os.path.join(node.data_dir, "recovery.conf"), "r"
|
|
) as recovery_conf:
|
|
for line in recovery_conf:
|
|
try:
|
|
key, value = line.split("=")
|
|
except:
|
|
continue
|
|
out_dict[key.strip()] = value.strip(" '").replace("'\n", "")
|
|
return out_dict
|
|
|
|
def set_archiving(
|
|
self, backup_dir, instance, node, replica=False, overwrite=False):
|
|
|
|
if replica:
|
|
archive_mode = 'always'
|
|
node.append_conf('postgresql.auto.conf', 'hot_standby = on')
|
|
else:
|
|
archive_mode = 'on'
|
|
|
|
# node.append_conf(
|
|
# "postgresql.auto.conf",
|
|
# "wal_level = archive"
|
|
# )
|
|
node.append_conf(
|
|
"postgresql.auto.conf",
|
|
"archive_mode = {0}".format(archive_mode)
|
|
)
|
|
archive_command = "{0} archive-push -B {1} --instance={2} ".format(
|
|
self.probackup_path, backup_dir, instance)
|
|
|
|
if os.name == 'posix':
|
|
if self.archive_compress:
|
|
archive_command = archive_command + "--compress "
|
|
|
|
if overwrite:
|
|
archive_command = archive_command + "--overwrite "
|
|
|
|
archive_command = archive_command + "--wal-file-path %p --wal-file-name %f"
|
|
|
|
node.append_conf(
|
|
"postgresql.auto.conf",
|
|
"archive_command = '{0}'".format(
|
|
archive_command))
|
|
# elif os.name == 'nt':
|
|
# node.append_conf(
|
|
# "postgresql.auto.conf",
|
|
# "archive_command = 'copy %p {0}\\%f'".format(archive_dir)
|
|
# )
|
|
|
|
def set_replica(
|
|
self, master, replica,
|
|
replica_name='replica',
|
|
synchronous=False
|
|
):
|
|
replica.append_conf(
|
|
"postgresql.auto.conf", "port = {0}".format(replica.port))
|
|
replica.append_conf('postgresql.auto.conf', 'hot_standby = on')
|
|
replica.append_conf('recovery.conf', "standby_mode = 'on'")
|
|
replica.append_conf(
|
|
"recovery.conf",
|
|
"primary_conninfo = 'user={0} port={1} application_name={2}"
|
|
" sslmode=prefer sslcompression=1'".format(
|
|
self.user, master.port, replica_name)
|
|
)
|
|
if synchronous:
|
|
master.append_conf(
|
|
"postgresql.auto.conf",
|
|
"synchronous_standby_names='{0}'".format(replica_name)
|
|
)
|
|
master.append_conf(
|
|
'postgresql.auto.conf',
|
|
"synchronous_commit='remote_apply'"
|
|
)
|
|
master.reload()
|
|
|
|
def wrong_wal_clean(self, node, wal_size):
|
|
wals_dir = os.path.join(self.backup_dir(node), "wal")
|
|
wals = [
|
|
f for f in os.listdir(wals_dir) if os.path.isfile(
|
|
os.path.join(wals_dir, f))
|
|
]
|
|
wals.sort()
|
|
file_path = os.path.join(wals_dir, wals[-1])
|
|
if os.path.getsize(file_path) != wal_size:
|
|
os.remove(file_path)
|
|
|
|
def guc_wal_segment_size(self, node):
|
|
var = node.execute(
|
|
"postgres",
|
|
"select setting from pg_settings where name = 'wal_segment_size'"
|
|
)
|
|
return int(var[0][0]) * self.guc_wal_block_size(node)
|
|
|
|
def guc_wal_block_size(self, node):
|
|
var = node.execute(
|
|
"postgres",
|
|
"select setting from pg_settings where name = 'wal_block_size'"
|
|
)
|
|
return int(var[0][0])
|
|
|
|
def get_pgpro_edition(self, node):
|
|
if node.execute(
|
|
"postgres",
|
|
"select exists (select 1 from"
|
|
" pg_proc where proname = 'pgpro_edition')"
|
|
)[0][0]:
|
|
var = node.execute("postgres", "select pgpro_edition()")
|
|
return str(var[0][0])
|
|
else:
|
|
return False
|
|
|
|
def get_username(self):
|
|
""" Returns current user name """
|
|
return pwd.getpwuid(os.getuid())[0]
|
|
|
|
def version_to_num(self, version):
|
|
if not version:
|
|
return 0
|
|
parts = version.split(".")
|
|
while len(parts) < 3:
|
|
parts.append("0")
|
|
num = 0
|
|
for part in parts:
|
|
num = num * 100 + int(re.sub("[^\d]", "", part))
|
|
return num
|
|
|
|
def switch_wal_segment(self, node):
|
|
""" Execute pg_switch_wal/xlog() in given node"""
|
|
if self.version_to_num(
|
|
node.safe_psql("postgres", "show server_version")
|
|
) >= self.version_to_num('10.0'):
|
|
node.safe_psql("postgres", "select pg_switch_wal()")
|
|
else:
|
|
node.safe_psql("postgres", "select pg_switch_xlog()")
|
|
sleep(1)
|
|
|
|
def get_version(self, node):
|
|
return self.version_to_num(
|
|
testgres.get_pg_config()["VERSION"].split(" ")[1])
|
|
|
|
def get_bin_path(self, binary):
|
|
return testgres.get_bin_path(binary)
|
|
|
|
def del_test_dir(self, module_name, fname):
|
|
""" Del testdir and optimistically try to del module dir"""
|
|
try:
|
|
testgres.clean_all()
|
|
except:
|
|
pass
|
|
|
|
shutil.rmtree(
|
|
os.path.join(
|
|
self.tmp_path,
|
|
module_name,
|
|
fname
|
|
),
|
|
ignore_errors=True
|
|
)
|
|
try:
|
|
os.rmdir(os.path.join(self.tmp_path, module_name))
|
|
except:
|
|
pass
|
|
|
|
def pgdata_content(self, directory, ignore_ptrack=True):
|
|
""" return dict with directory content. "
|
|
" TAKE IT AFTER CHECKPOINT or BACKUP"""
|
|
dirs_to_ignore = [
|
|
'pg_xlog', 'pg_wal', 'pg_log',
|
|
'pg_stat_tmp', 'pg_subtrans', 'pg_notify'
|
|
]
|
|
files_to_ignore = [
|
|
'postmaster.pid', 'postmaster.opts',
|
|
'pg_internal.init', 'postgresql.auto.conf',
|
|
'backup_label', 'tablespace_map', 'recovery.conf',
|
|
'ptrack_control', 'ptrack_init', 'pg_control'
|
|
]
|
|
# suffixes_to_ignore = (
|
|
# '_ptrack'
|
|
# )
|
|
directory_dict = {}
|
|
directory_dict['pgdata'] = directory
|
|
directory_dict['files'] = {}
|
|
for root, dirs, files in os.walk(directory, followlinks=True):
|
|
dirs[:] = [d for d in dirs if d not in dirs_to_ignore]
|
|
for file in files:
|
|
if (
|
|
file in files_to_ignore or
|
|
(ignore_ptrack and file.endswith('_ptrack'))
|
|
):
|
|
continue
|
|
|
|
file_fullpath = os.path.join(root, file)
|
|
file_relpath = os.path.relpath(file_fullpath, directory)
|
|
directory_dict['files'][file_relpath] = {'is_datafile': False}
|
|
directory_dict['files'][file_relpath]['md5'] = hashlib.md5(
|
|
open(file_fullpath, 'rb').read()).hexdigest()
|
|
|
|
if file.isdigit():
|
|
directory_dict['files'][file_relpath]['is_datafile'] = True
|
|
size_in_pages = os.path.getsize(file_fullpath)/8192
|
|
directory_dict['files'][file_relpath][
|
|
'md5_per_page'] = self.get_md5_per_page_for_fork(
|
|
file_fullpath, size_in_pages
|
|
)
|
|
|
|
return directory_dict
|
|
|
|
def compare_pgdata(self, original_pgdata, restored_pgdata):
|
|
""" return dict with directory content. DO IT BEFORE RECOVERY"""
|
|
fail = False
|
|
error_message = 'Restored PGDATA is not equal to original!\n'
|
|
for file in restored_pgdata['files']:
|
|
# File is present in RESTORED PGDATA
|
|
# but not present in ORIGINAL
|
|
# only backup_label is allowed
|
|
if file not in original_pgdata['files']:
|
|
fail = True
|
|
error_message += '\nFile is not present'
|
|
error_message += ' in original PGDATA: {0}\n'.format(
|
|
os.path.join(restored_pgdata['pgdata'], file))
|
|
|
|
for file in original_pgdata['files']:
|
|
if file in restored_pgdata['files']:
|
|
|
|
if (
|
|
original_pgdata['files'][file]['md5'] !=
|
|
restored_pgdata['files'][file]['md5']
|
|
):
|
|
fail = True
|
|
error_message += (
|
|
'\nFile Checksumm mismatch.\n'
|
|
'File_old: {0}\nChecksumm_old: {1}\n'
|
|
'File_new: {2}\nChecksumm_new: {3}\n').format(
|
|
os.path.join(original_pgdata['pgdata'], file),
|
|
original_pgdata['files'][file]['md5'],
|
|
os.path.join(restored_pgdata['pgdata'], file),
|
|
restored_pgdata['files'][file]['md5']
|
|
)
|
|
|
|
if original_pgdata['files'][file]['is_datafile']:
|
|
for page in original_pgdata['files'][file]['md5_per_page']:
|
|
if page not in restored_pgdata['files'][file]['md5_per_page']:
|
|
error_message += (
|
|
'\n Page {0} dissappeared.\n '
|
|
'File: {1}\n').format(
|
|
page,
|
|
os.path.join(
|
|
restored_pgdata['pgdata'],
|
|
file
|
|
)
|
|
)
|
|
continue
|
|
|
|
if original_pgdata['files'][file][
|
|
'md5_per_page'][page] != restored_pgdata[
|
|
'files'][file]['md5_per_page'][page]:
|
|
error_message += (
|
|
'\n Page checksumm mismatch: {0}\n '
|
|
' PAGE Checksumm_old: {1}\n '
|
|
' PAGE Checksumm_new: {2}\n '
|
|
' File: {3}\n'
|
|
).format(
|
|
page,
|
|
original_pgdata['files'][file][
|
|
'md5_per_page'][page],
|
|
restored_pgdata['files'][file][
|
|
'md5_per_page'][page],
|
|
os.path.join(
|
|
restored_pgdata['pgdata'], file)
|
|
)
|
|
for page in restored_pgdata['files'][file]['md5_per_page']:
|
|
if page not in original_pgdata['files'][file]['md5_per_page']:
|
|
error_message += '\n Extra page {0}\n File: {1}\n'.format(
|
|
page,
|
|
os.path.join(
|
|
restored_pgdata['pgdata'], file))
|
|
|
|
else:
|
|
error_message += (
|
|
'\nFile dissappearance.\n '
|
|
'File: {0}\n').format(
|
|
os.path.join(restored_pgdata['pgdata'], file)
|
|
)
|
|
fail = True
|
|
self.assertFalse(fail, error_message)
|
|
|
|
def get_async_connect(self, database=None, host=None, port=5432):
|
|
if not database:
|
|
database = 'postgres'
|
|
if not host:
|
|
host = '127.0.0.1'
|
|
|
|
return psycopg2.connect(
|
|
database="postgres",
|
|
host='127.0.0.1',
|
|
port=port,
|
|
async=True
|
|
)
|
|
|
|
def wait(self, connection):
|
|
while True:
|
|
state = connection.poll()
|
|
if state == psycopg2.extensions.POLL_OK:
|
|
break
|
|
elif state == psycopg2.extensions.POLL_WRITE:
|
|
select.select([], [connection.fileno()], [])
|
|
elif state == psycopg2.extensions.POLL_READ:
|
|
select.select([connection.fileno()], [], [])
|
|
else:
|
|
raise psycopg2.OperationalError("poll() returned %s" % state)
|
|
|
|
def gdb_attach(self, pid):
|
|
return GDBobj([str(pid)], self.verbose, attach=True)
|
|
|
|
|
|
class GdbException(Exception):
|
|
def __init__(self, message=False):
|
|
self.message = message
|
|
|
|
def __str__(self):
|
|
return '\n ERROR: {0}\n'.format(repr(self.message))
|
|
|
|
|
|
class GDBobj(ProbackupTest):
|
|
def __init__(self, cmd, verbose, attach=False):
|
|
self.verbose = verbose
|
|
|
|
# Check gdb presense
|
|
try:
|
|
gdb_version, _ = subprocess.Popen(
|
|
["gdb", "--version"],
|
|
stdout=subprocess.PIPE
|
|
).communicate()
|
|
except OSError:
|
|
raise GdbException("Couldn't find gdb on the path")
|
|
|
|
self.base_cmd = [
|
|
'gdb',
|
|
'--interpreter',
|
|
'mi2',
|
|
]
|
|
|
|
if attach:
|
|
self.cmd = self.base_cmd + ['--pid'] + cmd
|
|
else:
|
|
self.cmd = self.base_cmd + ['--args'] + cmd
|
|
|
|
# Get version
|
|
gdb_version_number = re.search(
|
|
b"^GNU gdb [^\d]*(\d+)\.(\d)",
|
|
gdb_version)
|
|
self.major_version = int(gdb_version_number.group(1))
|
|
self.minor_version = int(gdb_version_number.group(2))
|
|
|
|
if self.verbose:
|
|
print([' '.join(map(str, self.cmd))])
|
|
|
|
self.proc = subprocess.Popen(
|
|
self.cmd,
|
|
stdin=subprocess.PIPE,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.STDOUT,
|
|
bufsize=0,
|
|
universal_newlines=True
|
|
)
|
|
self.gdb_pid = self.proc.pid
|
|
|
|
# discard data from pipe,
|
|
# is there a way to do it a less derpy way?
|
|
while True:
|
|
line = self.proc.stdout.readline()
|
|
|
|
if 'No such process' in line:
|
|
raise GdbException(line)
|
|
|
|
if not line.startswith('(gdb)'):
|
|
pass
|
|
else:
|
|
break
|
|
|
|
def set_breakpoint(self, location):
|
|
result = self._execute('break ' + location)
|
|
for line in result:
|
|
if line.startswith('~"Breakpoint'):
|
|
return
|
|
|
|
elif line.startswith('^error') or line.startswith('(gdb)'):
|
|
break
|
|
|
|
elif line.startswith('&"break'):
|
|
pass
|
|
|
|
elif line.startswith('&"Function'):
|
|
raise GdbException(line)
|
|
|
|
elif line.startswith('&"No line'):
|
|
raise GdbException(line)
|
|
|
|
elif line.startswith('~"Make breakpoint pending on future shared'):
|
|
raise GdbException(line)
|
|
|
|
raise GdbException(
|
|
'Failed to set breakpoint.\n Output:\n {0}'.format(result)
|
|
)
|
|
|
|
def run_until_break(self):
|
|
result = self._execute('run', False)
|
|
for line in result:
|
|
if line.startswith('*stopped,reason="breakpoint-hit"'):
|
|
return
|
|
raise GdbException(
|
|
'Failed to run until breakpoint.\n'
|
|
)
|
|
|
|
def continue_execution_until_running(self):
|
|
result = self._execute('continue')
|
|
|
|
running = False
|
|
for line in result:
|
|
if line.startswith('*running'):
|
|
running = True
|
|
break
|
|
if line.startswith('*stopped,reason="breakpoint-hit"'):
|
|
running = False
|
|
continue
|
|
if line.startswith('*stopped,reason="exited-normally"'):
|
|
running = False
|
|
continue
|
|
return running
|
|
|
|
def continue_execution_until_exit(self):
|
|
result = self._execute('continue', False)
|
|
|
|
for line in result:
|
|
if line.startswith('*running'):
|
|
continue
|
|
if line.startswith('*stopped,reason="breakpoint-hit"'):
|
|
continue
|
|
if (
|
|
line.startswith('*stopped,reason="exited-normally"') or
|
|
line == '*stopped\n'
|
|
):
|
|
return
|
|
raise GdbException(
|
|
'Failed to continue execution until exit.\n'
|
|
)
|
|
|
|
def continue_execution_until_break(self, ignore_count=0):
|
|
if ignore_count > 0:
|
|
result = self._execute(
|
|
'continue ' + str(ignore_count),
|
|
False
|
|
)
|
|
else:
|
|
result = self._execute('continue', False)
|
|
|
|
running = False
|
|
for line in result:
|
|
if line.startswith('*running'):
|
|
running = True
|
|
if line.startswith('*stopped,reason="breakpoint-hit"'):
|
|
return 'breakpoint-hit'
|
|
if line.startswith('*stopped,reason="exited-normally"'):
|
|
return 'exited-normally'
|
|
if running:
|
|
return 'running'
|
|
|
|
def stopped_in_breakpoint(self):
|
|
output = []
|
|
while True:
|
|
line = self.proc.stdout.readline()
|
|
output += [line]
|
|
if self.verbose:
|
|
print(line)
|
|
if line.startswith('*stopped,reason="breakpoint-hit"'):
|
|
return True
|
|
return False
|
|
|
|
# use for breakpoint, run, continue
|
|
def _execute(self, cmd, running=True):
|
|
output = []
|
|
self.proc.stdin.flush()
|
|
self.proc.stdin.write(cmd + '\n')
|
|
self.proc.stdin.flush()
|
|
|
|
while True:
|
|
line = self.proc.stdout.readline()
|
|
output += [line]
|
|
if self.verbose:
|
|
print(repr(line))
|
|
if line == '^done\n' or line.startswith('*stopped'):
|
|
break
|
|
if running and line.startswith('*running'):
|
|
break
|
|
return output
|