1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
#!/usr/bin/env python
#
# Public Domain 2014-present MongoDB, Inc.
# Public Domain 2008-2014 WiredTiger, Inc.
#
# This is free and unencumbered software released into the public domain.
#
# Anyone is free to copy, modify, publish, use, compile, sell, or
# distribute this software, either in source code form or as a compiled
# binary, for any purpose, commercial or non-commercial, and by any
# means.
#
# In jurisdictions that recognize copyright laws, the author or authors
# of this software dedicate any and all copyright interest in the
# software to the public domain. We make this dedication for the benefit
# of the public at large and to the detriment of our heirs and
# successors. We intend this dedication to be an overt act of
# relinquishment in perpetuity of all present and future rights to this
# software under copyright law.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
import wiredtiger, wttest
import os, shutil
from helper import compare_files, simulate_crash_restart
from wtbackup import backup_base
from wtdataset import simple_key
from wtscenario import make_scenarios
# test_backup13.py
# Test cursor backup with a block-based incremental cursor and force_stop.
class test_backup13(backup_base):
conn_config='cache_size=1G,log=(enabled,file_max=100K)'
dir='backup.dir' # Backup directory name
logmax="100K"
uri="table:test"
scenarios = make_scenarios([
('default', dict(sess_cfg='')),
('read-committed', dict(sess_cfg='isolation=read-committed')),
('read-uncommitted', dict(sess_cfg='isolation=read-uncommitted')),
('snapshot', dict(sess_cfg='isolation=snapshot')),
])
pfx = 'test_backup'
# Set the key and value big enough that we modify a few blocks.
bigkey = 'Key' * 100
bigval = 'Value' * 100
nops = 1000
def session_config(self):
return self.sess_cfg
def add_data_and_check(self):
if self.sess_cfg == 'isolation=read-committed' or self.sess_cfg == 'isolation=read-uncommitted':
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda: self.add_data(self.uri, self.bigkey, self.bigval, True),
"/not supported in read-committed or read-uncommitted transactions/")
else:
self.add_data(self.uri, self.bigkey, self.bigval, True)
def test_backup13(self):
self.session.create(self.uri, "key_format=S,value_format=S")
self.add_data_and_check()
os.mkdir(self.dir)
# Add more data while the backup cursor is open.
self.add_data_and_check()
# Open up the backup cursor. This causes a new log file to be created.
# That log file is not part of the list returned. This is a full backup
# primary cursor with incremental configured.
config = 'incremental=(enabled,granularity=1M,this_id="ID1")'
bkup_c = self.session.open_cursor('backup:', None, config)
# Now make a full backup and track the files.
all_files = self.take_full_backup(self.dir, bkup_c)
bkup_c.close()
# Add more data.
self.add_data_and_check()
# Now do an incremental backup with id 2.
(bkup_files, _) = self.take_incr_backup(self.dir, 2)
all_set = set(all_files)
bkup_set = set(bkup_files)
rem_files = list(all_set - bkup_set)
for l in rem_files:
self.pr('Remove file: ' + self.dir + '/' + l)
os.remove(self.dir + '/' + l)
# After the full backup, open and recover the backup database.
backup_conn = self.wiredtiger_open(self.dir)
backup_conn.close()
# Do a force stop to release resources and reset the system.
config = 'incremental=(force_stop=true)'
bkup_c = self.session.open_cursor('backup:', None, config)
bkup_c.close()
# Make sure after a force stop we cannot access old backup info.
config = 'incremental=(src_id="ID1",this_id="ID3")'
self.assertRaises(wiredtiger.WiredTigerError,
lambda: self.session.open_cursor('backup:', None, config))
# Make sure after a crash we cannot access old backup info.
simulate_crash_restart(self, ".", "RESTART")
self.assertRaises(wiredtiger.WiredTigerError,
lambda: self.session.open_cursor('backup:', None, config))
self.reopen_conn()
# Make sure after a restart we cannot access old backup info.
self.assertRaises(wiredtiger.WiredTigerError,
lambda: self.session.open_cursor('backup:', None, config))
if __name__ == '__main__':
wttest.run()
|
