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
|
#!/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.
#
# test_txn18.py
# Transactions: test recovery settings
#
import fnmatch, os, shutil, time
from suite_subprocess import suite_subprocess
import wiredtiger, wttest
from wtscenario import make_scenarios
class test_txn18(wttest.WiredTigerTestCase, suite_subprocess):
t1 = 'table:test_txn18'
conn_config = 'log=(archive=false,enabled,file_max=100K),' + \
'transaction_sync=(method=dsync,enabled)'
conn_recerror = conn_config + ',log=(recover=error)'
conn_recon = conn_config + ',log=(recover=on)'
format_values = [
('integer-row', dict(key_format='i', value_format='i')),
('column', dict(key_format='r', value_format='i')),
('column-fix', dict(key_format='r', value_format='8t')),
]
scenarios = make_scenarios(format_values)
def mkvalue(self, i):
if self.value_format == '8t':
return i % 256
return i
def simulate_crash(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)
def test_recovery(self):
''' Run the recovery settings '''
# Here's the strategy:
# - Create a table (t1).
# - Insert data into t1.
# - Simulate a crash.
# - Make recovery run with recovery=error
# and make sure it detects an error since recovery is needed
# - Make recovery run with recovery=on.
# - Do a clean shutdown and restart with recovery=error
# and make sure is successful.
#
# If we aren't tracking file IDs properly, it's possible that
# we'd end up apply the log records for t2 to table t1.
create_params = 'key_format={},value_format={}'.format(self.key_format, self.value_format)
self.session.create(self.t1, create_params)
#
# Since we're logging, we need to flush out the meta-data file
# from the create.
self.session.checkpoint()
c = self.session.open_cursor(self.t1, None, None)
for i in range(1, 10001):
c[i] = self.mkvalue(i + 1)
c.close()
olddir = "."
newdir = "RESTART"
errdir = "ERROR"
self.simulate_crash(olddir, errdir)
self.simulate_crash(olddir, newdir)
# close the original connection
self.close_conn()
# Trying to open the error directory with recover=error should return an error.
msg = '/recovery must be run/'
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.wiredtiger_open(errdir, self.conn_recerror), msg)
# If recover=error is run on the directory and returns an error,
# make sure when we subsequently open with recover=on it properly
# recovers all the data.
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.wiredtiger_open(newdir, self.conn_recerror), msg)
# Opening with recover=on should succeed.
self.conn = self.wiredtiger_open(newdir, self.conn_recon)
# Make sure the data we added originally is there
self.session = self.setUpSessionOpen(self.conn)
c = self.session.open_cursor(self.t1, None, None)
i = 1
for key, value in c:
self.assertEqual(i, key)
self.assertEqual(self.mkvalue(i+1), value)
i += 1
self.assertEqual(i, 10001)
c.close()
self.close_conn()
# Reopening with recover=error after a clean shutdown should succeed.
self.conn = self.wiredtiger_open(newdir, self.conn_recerror)
if __name__ == '__main__':
wttest.run()
|
