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
|
#!/usr/bin/env python
#
# Public Domain 2014-2016 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
from wtdataset import SimpleDataSet
from helper import copy_wiredtiger_home
# test_bug014.py
# JIRA WT-2115: fast-delete pages can be incorrectly lost due to a crash.
class test_bug014(wttest.WiredTigerTestCase):
def test_bug014(self):
# Populate a table with 1000 keys on small pages.
uri = 'table:test_bug014'
ds = SimpleDataSet(self, uri, 1000,
config='allocation_size=512,leaf_page_max=512')
ds.populate()
# Reopen it so we can fast-delete pages.
self.reopen_conn()
# Truncate a chunk of the key/value pairs inside a transaction.
self.session.begin_transaction(None)
start = self.session.open_cursor(uri, None)
start.set_key(ds.key(250))
end = self.session.open_cursor(uri, None)
end.set_key(ds.key(500))
self.session.truncate(None, start, end, None)
start.close()
end.close()
# With the truncation uncommitted, checkpoint the database.
ckpt_session = self.conn.open_session()
ckpt_session.checkpoint(None)
ckpt_session.close()
# Simulate a crash by copying to a new directory.
copy_wiredtiger_home(".", "RESTART")
# Open the new directory.
conn = self.setUpConnectionOpen("RESTART")
session = self.setUpSessionOpen(conn)
cursor = session.open_cursor(uri)
# Confirm all of the records are there.
for i in range(1, 1001):
cursor.set_key(ds.key(i))
self.assertEqual(cursor.search(), 0)
conn.close()
if __name__ == '__main__':
wttest.run()
|
