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
|
#!/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_TAGS]
# checkpoint:metadata
# [END_TAGS]
from helper import copy_wiredtiger_home
import wiredtiger, wttest
from wtdataset import SimpleDataSet
from wtscenario import make_scenarios
from wiredtiger import stat
# test_checkpoint_snapshot01.py
# Checkpoint snapshot - Create multiple sessions which creates snapshots and
# checkpoint to save the snapshot details in metadata file.
#
class test_checkpoint_snapshot01(wttest.WiredTigerTestCase):
uri = "table:test_checkpoint_snapshot01"
conn_config = 'cache_size=50MB'
format_values = [
('column-fix', dict(key_format='r', value_format='8t')),
('column', dict(key_format='r', value_format='u')),
('row_string', dict(key_format='S', value_format='u')),
]
scenarios = make_scenarios(format_values)
nsessions = 5
nkeys = 40
nrows = 100
def test_checkpoint_snapshot(self):
# Create a table.
ds = SimpleDataSet(self, self.uri, self.nrows, \
key_format=self.key_format, value_format=self.value_format)
ds.populate()
if self.value_format == '8t':
value = 86
else:
value = b"aaaaa" * 100
sessions = [0] * self.nsessions
cursors = [0] * self.nsessions
for j in range (0, self.nsessions):
sessions[j] = self.conn.open_session()
cursors[j] = sessions[j].open_cursor(self.uri)
sessions[j].begin_transaction()
start = (j * self.nkeys)
end = start + self.nkeys
for i in range(start, end):
cursors[j].set_key(ds.key(self.nrows + i))
cursors[j].set_value(value)
self.assertEquals(cursors[j].insert(),0)
session_p2 = self.conn.open_session()
session_p2.checkpoint()
#Simulate a crash by copying to a new directory(RESTART).
copy_wiredtiger_home(self, ".", "RESTART")
# Open the new directory.
self.conn = self.setUpConnectionOpen("RESTART")
self.session = self.setUpSessionOpen(self.conn)
if __name__ == '__main__':
wttest.run()
|
