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#!/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.
import wiredtiger, wttest
from wtdataset import SimpleDataSet, ComplexDataSet
from wtscenario import make_scenarios
# test_rollback_to_stable30.py
# Test RTS fails with active transactions and the subsequent transaction resolution succeeds.
class test_rollback_to_stable30(wttest.WiredTigerTestCase):
scenarios = make_scenarios([
('table-f', dict(keyfmt='r', valfmt='8t', dataset=SimpleDataSet)),
('table-r', dict(keyfmt='r', valfmt='S', dataset=SimpleDataSet)),
('table-S', dict(keyfmt='S', valfmt='S', dataset=SimpleDataSet)),
('table-r-complex', dict(keyfmt='r', valfmt=None, dataset=ComplexDataSet)),
('table-S-complex', dict(keyfmt='S', valfmt=None, dataset=ComplexDataSet)),
])
def prepare_resolve(self, resolve):
ds = self.dataset(self, "table:rts30", 10, key_format=self.keyfmt, value_format=self.valfmt)
ds.populate()
# Pin oldest and stable timestamps to 1.
self.conn.set_timestamp(
'oldest_timestamp=' + self.timestamp_str(1) +
',stable_timestamp=' + self.timestamp_str(1))
# Write some data and prepare it.
cursor = self.session.open_cursor(ds.uri)
self.session.begin_transaction()
# Modify a row.
cursor[ds.key(5)] = ds.value(20)
# Prepare at timestamp 10.
self.session.prepare_transaction('prepare_timestamp=' + self.timestamp_str(10))
# Roll back to stable should fail because there's an active transaction.
msg = '/rollback_to_stable.*active/'
if wiredtiger.diagnostic_build():
with self.expectedStdoutPattern('transaction state dump'):
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.conn.rollback_to_stable(), msg)
else:
self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
lambda:self.conn.rollback_to_stable(), msg)
# Set commit, durable timestamps to 20.
self.session.timestamp_transaction(
'commit_timestamp=' + self.timestamp_str(20) +
',durable_timestamp=' + self.timestamp_str(20))
# Commit or abort the prepared transaction.
resolve()
def test_rts_prepare_commit(self):
self.prepare_resolve(self.session.commit_transaction)
def test_rts_prepare_rollback(self):
self.prepare_resolve(self.session.rollback_transaction)
if __name__ == '__main__':
wttest.run()
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