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
|
#
# 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.
import os, shutil
from helper import simulate_crash_restart
import wiredtiger, wttest
from wiredtiger import stat
from wtdataset import SimpleDataSet
from wtscenario import make_scenarios
def timestamp_str(t):
return '%x' % t
# test_rollback_to_stable16.py
# Test that rollback to stable removes updates present on disk for column store.
class test_rollback_to_stable16(wttest.WiredTigerTestCase):
session_config = 'isolation=snapshot'
key_format_values = [
('column', dict(key_format='r')),
('integer_row', dict(key_format='i')),
]
value_format_values = [
# Fixed length
#FIXME: WT-7304 Fixed length column store failing on rollback on disk values
# ('fixed', dict(value_format='8t')),
# Variable length
('variable', dict(value_format='S')),
]
in_memory_values = [
('no_inmem', dict(in_memory=False)),
('inmem', dict(in_memory=True))
]
scenarios = make_scenarios(key_format_values, value_format_values, in_memory_values)
def conn_config(self):
config = 'cache_size=200MB,statistics=(all)'
if self.in_memory:
config += ',in_memory=true'
else:
config += ',in_memory=false'
return config
def insert_update_data(self, uri, value, start_row, nrows, timestamp):
cursor = self.session.open_cursor(uri)
for i in range(start_row, start_row + nrows):
self.session.begin_transaction()
if self.value_format == 'S':
cursor[i] = value + str(i)
else:
cursor[i] = value
self.session.commit_transaction('commit_timestamp=' + timestamp_str(timestamp))
cursor.close()
def check(self, check_value, uri, nrows, start_row, read_ts):
session = self.session
if read_ts == 0:
session.begin_transaction()
else:
session.begin_transaction('read_timestamp=' + timestamp_str(read_ts))
cursor = session.open_cursor(uri)
count = 0
for i in range(start_row, start_row + nrows):
cursor.set_key(i)
ret = cursor.search()
if check_value is None:
if ret != wiredtiger.WT_NOTFOUND:
self.assertTrue(ret == wiredtiger.WT_NOTFOUND)
else:
if self.value_format == 'S':
self.assertEqual(cursor.get_value(), check_value + str(count + start_row))
else:
self.assertEqual(cursor.get_value(), check_value)
count += 1
session.commit_transaction()
if check_value is None:
self.assertEqual(count, 0)
else:
self.assertEqual(count, nrows)
cursor.close()
def test_rollback_to_stable16(self):
# Create a table.
uri = "table:rollback_to_stable16"
nrows = 200
start_row = 1
ts = [2,5,7,9]
if self.value_format == 'S':
values = ["aaaa", "bbbb", "cccc", "dddd"]
else:
values = [0x01, 0x02, 0x03, 0x04]
create_params = 'log=(enabled=false),key_format={},value_format={}'.format(self.key_format, self.value_format)
self.session.create(uri, create_params)
# Pin oldest and stable to timestamp 1.
self.conn.set_timestamp('oldest_timestamp=' + timestamp_str(1) +
',stable_timestamp=' + timestamp_str(1))
for i in range(len(values)):
self.insert_update_data(uri, values[i], start_row, nrows, ts[i])
start_row += nrows
self.conn.set_timestamp('stable_timestamp=' + timestamp_str(5))
if not self.in_memory:
# Checkpoint to ensure that all the updates are flushed to disk.
self.session.checkpoint()
# Rollback to stable done as part of recovery.
simulate_crash_restart(self,".", "RESTART")
else:
# Manually call rollback_to_stable for in memory keys/values.
self.conn.rollback_to_stable()
self.check(values[0], uri, nrows, 1, 2)
self.check(values[1], uri, nrows, 201, 5)
self.check(None, uri, nrows, 401, 7)
self.check(None, uri, nrows, 601, 9)
stat_cursor = self.session.open_cursor('statistics:', None, None)
upd_aborted = stat_cursor[stat.conn.txn_rts_upd_aborted][2]
keys_removed = stat_cursor[stat.conn.txn_rts_keys_removed][2]
stat_cursor.close()
self.assertGreaterEqual(upd_aborted + keys_removed, (nrows*2) - 2)
self.session.close()
if __name__ == '__main__':
wttest.run()
|
