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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
#!/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_timestamp11.py
# Timestamps: test that mixing transactions with and without timestamps behaves as expected.
#
from suite_subprocess import suite_subprocess
import wttest
from wtscenario import make_scenarios
class test_timestamp11(wttest.WiredTigerTestCase, suite_subprocess):
format_values = [
('string-row', dict(key_format='S', value_format='S')),
('column', dict(key_format='r', value_format='S')),
('column-fix', dict(key_format='r', value_format='8t')),
]
scenarios = make_scenarios(format_values)
def test_timestamp_range(self):
base = 'timestamp11'
uri = 'file:' + base
format = 'key_format={},value_format={}'.format(self.key_format, self.value_format)
self.session.create(uri, format)
if self.key_format == 'r':
key = 1
key2 = 2
else:
key = 'key'
key2 = 'key2'
if self.value_format == '8t':
value2 = 200
value5 = 50
valueNOTS = 111
else:
value2 = 'value2'
value5 = 'value5'
valueNOTS = 'valueNOTS'
# Test that mixing transactions with and without timestamps behaves as expected.
# Insert two data items at timestamp 2
c = self.session.open_cursor(uri)
self.session.begin_transaction()
self.session.timestamp_transaction('commit_timestamp=' + self.timestamp_str(2))
c[key] = value2
c[key2] = value2
self.session.commit_transaction()
c.close()
# Modify one key without a timestamp and modify the other with a later timestamp.
c = self.session.open_cursor(uri)
self.session.begin_transaction()
self.session.timestamp_transaction('commit_timestamp=' + self.timestamp_str(5))
c[key] = value5
self.session.commit_transaction()
c.close()
c = self.session.open_cursor(uri)
self.session.begin_transaction('no_timestamp=true')
c[key2] = valueNOTS
self.session.commit_transaction()
c.close()
#
# Set the stable timestamp and then roll back to it. The first key
# should roll back to the original value and the second key should
# remain at the non-timestamped value. Also the non-timestamped value
# stays regardless of rollbacks or reading at a timestamp.
#
stable_ts = self.timestamp_str(2)
self.conn.set_timestamp('stable_timestamp=' + stable_ts)
self.session.checkpoint()
self.conn.rollback_to_stable()
c = self.session.open_cursor(uri)
self.session.begin_transaction()
self.assertEquals(c[key], value2)
self.assertEquals(c[key2], valueNOTS)
self.session.commit_transaction()
c.close()
c = self.session.open_cursor(uri)
self.session.begin_transaction('read_timestamp=' + stable_ts)
self.assertEquals(c[key], value2)
self.assertEquals(c[key2], valueNOTS)
self.session.commit_transaction()
c.close()
#
# Repeat but swapping the keys using or not using timestamps.
#
c = self.session.open_cursor(uri)
self.session.begin_transaction()
self.session.timestamp_transaction('commit_timestamp=' + self.timestamp_str(5))
c[key2] = value5
self.session.commit_transaction()
c.close()
c = self.session.open_cursor(uri)
self.session.begin_transaction('no_timestamp=true')
c[key] = valueNOTS
self.session.commit_transaction()
c.close()
# Read with each timestamp and without any timestamp.
#
# Without a timestamp. We should see the latest value for each.
c = self.session.open_cursor(uri)
self.session.begin_transaction()
self.assertEquals(c[key], valueNOTS)
self.assertEquals(c[key2], value5)
self.session.commit_transaction()
c.close()
# With timestamp 2. Both non-timestamped values override the original
# value at timestamp 2.
c = self.session.open_cursor(uri)
self.session.begin_transaction('read_timestamp=' + stable_ts)
self.assertEquals(c[key], valueNOTS)
self.assertEquals(c[key2], valueNOTS)
self.session.commit_transaction()
c.close()
# With timestamp 5. We rolled back the first one and never re-inserted
# one at that timestamp and inserted without a timestamp. For the second
# we inserted at timestamp 5 after the non-timestamped insert.
c = self.session.open_cursor(uri)
self.session.begin_transaction('read_timestamp=' + self.timestamp_str(5))
self.assertEquals(c[key], valueNOTS)
self.assertEquals(c[key2], value5)
self.session.commit_transaction()
c.close()
if __name__ == '__main__':
wttest.run()
|
