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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
#!/usr/bin/env python
#
# Public Domain 2014-2020 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
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 simulate_crash_restart(self, olddir, newdir):
''' Simulate a crash from olddir and restart in newdir. '''
# with the connection still open, copy files to new directory.
shutil.rmtree(newdir, ignore_errors=True)
os.mkdir(newdir)
for fname in os.listdir(olddir):
fullname = os.path.join(olddir, fname)
# Skip lock file on Windows since it is locked.
if os.path.isfile(fullname) and \
"WiredTiger.lock" not in fullname and \
"Tmplog" not in fullname and \
"Preplog" not in fullname:
shutil.copy(fullname, newdir)
# close the original connection and open to new directory.
self.close_conn()
self.conn = self.setUpConnectionOpen(newdir)
self.session = self.setUpSessionOpen(self.conn)
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.
self.simulate_crash_restart(".", "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()
|
