diff options
Diffstat (limited to 'src/third_party/wiredtiger/test/suite/test_rollback_to_stable03.py')
-rwxr-xr-x | src/third_party/wiredtiger/test/suite/test_rollback_to_stable03.py | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/third_party/wiredtiger/test/suite/test_rollback_to_stable03.py b/src/third_party/wiredtiger/test/suite/test_rollback_to_stable03.py new file mode 100755 index 00000000000..88bed706e7b --- /dev/null +++ b/src/third_party/wiredtiger/test/suite/test_rollback_to_stable03.py @@ -0,0 +1,127 @@ +#!/usr/bin/env python +# +# Public Domain 2014-2020 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 time +from helper import copy_wiredtiger_home +import unittest, wiredtiger, wttest +from wtdataset import SimpleDataSet +from wiredtiger import stat +from wtscenario import make_scenarios +from test_rollback_to_stable01 import test_rollback_to_stable_base + +def timestamp_str(t): + return '%x' % t + +# test_rollback_to_stable03.py +# Test that rollback to stable clears the history store updates from reconciled pages. +class test_rollback_to_stable01(test_rollback_to_stable_base): + session_config = 'isolation=snapshot' + + in_memory_values = [ + ('no_inmem', dict(in_memory=False)), + ('inmem', dict(in_memory=True)) + ] + + prepare_values = [ + ('no_prepare', dict(prepare=False)), + ('prepare', dict(prepare=True)) + ] + + scenarios = make_scenarios(in_memory_values, prepare_values) + + def conn_config(self): + config = 'cache_size=4GB,statistics=(all)' + if self.in_memory: + config += ',in_memory=true' + else: + config += ',log=(enabled),in_memory=false' + return config + + def test_rollback_to_stable(self): + nrows = 1000 + + # Create a table without logging. + uri = "table:rollback_to_stable03" + ds = SimpleDataSet( + self, uri, 0, key_format="i", value_format="S", config='log=(enabled=false)') + ds.populate() + + # Pin oldest and stable to timestamp 1. + self.conn.set_timestamp('oldest_timestamp=' + timestamp_str(1) + + ',stable_timestamp=' + timestamp_str(1)) + + valuea = "aaaaa" * 100 + valueb = "bbbbb" * 100 + valuec = "ccccc" * 100 + self.large_updates(uri, valuea, ds, nrows, 10) + # Check that all updates are seen. + self.check(valuea, uri, nrows, 10) + + self.large_updates(uri, valueb, ds, nrows, 20) + # Check that all updates are seen. + self.check(valueb, uri, nrows, 20) + + self.large_updates(uri, valuec, ds, nrows, 30) + # Check that all updates are seen. + self.check(valuec, uri, nrows, 30) + + # Pin stable to timestamp 30 if prepare otherwise 20. + if self.prepare: + self.conn.set_timestamp('stable_timestamp=' + timestamp_str(30)) + else: + self.conn.set_timestamp('stable_timestamp=' + timestamp_str(20)) + # Checkpoint to ensure that all the updates are flushed to disk. + if not self.in_memory: + self.session.checkpoint() + + self.conn.rollback_to_stable() + # Check that the old updates are only seen even with the update timestamp. + self.check(valueb, uri, nrows, 20) + self.check(valuea, uri, nrows, 10) + + stat_cursor = self.session.open_cursor('statistics:', None, None) + calls = stat_cursor[stat.conn.txn_rts][2] + hs_removed = stat_cursor[stat.conn.txn_rts_hs_removed][2] + keys_removed = stat_cursor[stat.conn.txn_rts_keys_removed][2] + keys_restored = stat_cursor[stat.conn.txn_rts_keys_restored][2] + pages_visited = stat_cursor[stat.conn.txn_rts_pages_visited][2] + upd_aborted = stat_cursor[stat.conn.txn_rts_upd_aborted][2] + stat_cursor.close() + + self.assertEqual(calls, 1) + self.assertEqual(keys_removed, 0) + self.assertEqual(keys_restored, 0) + if self.in_memory or self.prepare: + self.assertEqual(hs_removed, 0) + else: + self.assertEqual(hs_removed, nrows) + self.assertEqual(upd_aborted, nrows) + self.assertGreater(pages_visited, 0) + +if __name__ == '__main__': + wttest.run() |