1 files changed, 116 insertions, 0 deletions
diff --git a/src/third_party/wiredtiger/test/suite/test_rollback_to_stable21.py b/src/third_party/wiredtiger/test/suite/test_rollback_to_stable21.py
new file mode 100644
index 00000000000..1e898523c39
--- /dev/null
+++ b/src/third_party/wiredtiger/test/suite/test_rollback_to_stable21.py
@@ -0,0 +1,116 @@
+#!/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.
+
+from wiredtiger import stat
+from wtscenario import make_scenarios
+from helper import simulate_crash_restart
+from wtdataset import SimpleDataSet
+from test_rollback_to_stable01 import test_rollback_to_stable_base
+
+def timestamp_str(t):
+    return '%x' % t
+
+# test_rollback_to_stable21.py
+# Test rollback to stable when an out of order prepared transaction is written to disk
+class test_rollback_to_stable21(test_rollback_to_stable_base):
+    key_format_values = [
+        ('column', dict(key_format='r')),
+        ('integer_row', dict(key_format='i')),
+    ]
+
+    scenarios = make_scenarios(key_format_values)
+
+    def conn_config(self):
+        config = 'cache_size=250MB,statistics=(all),statistics_log=(json,on_close,wait=1)'
+        return config
+
+    def test_rollback_to_stable(self):
+        nrows = 1000
+
+        # Prepare transactions for column store table is not yet supported.
+        if self.key_format == 'r':
+            self.skipTest('Prepare transactions for column store table is not yet supported')
+
+        # Create a table without logging.
+        uri = "table:rollback_to_stable21"
+        ds = SimpleDataSet(
+            self, uri, 0, key_format=self.key_format, value_format="S", config='log=(enabled=false)')
+        ds.populate()
+
+        # Pin oldest and stable timestamps to 10.
+        self.conn.set_timestamp('oldest_timestamp=' + timestamp_str(10) +
+            ',stable_timestamp=' + timestamp_str(10))
+
+        valuea = 'a' * 400
+        valueb = 'b' * 400
+
+        cursor = self.session.open_cursor(uri)
+        self.session.begin_transaction()
+        for i in range(1, nrows + 1):
+            cursor[i] = valuea
+
+        self.session.commit_transaction('commit_timestamp=' + timestamp_str(30))
+
+        self.session.begin_transaction()
+        for i in range(1, nrows + 1):
+            cursor[i] = valueb
+
+        cursor.reset()
+        cursor.close()
+        self.session.prepare_transaction('prepare_timestamp=' + timestamp_str(20))
+
+        s = self.conn.open_session()
+        s.begin_transaction('ignore_prepare = true')
+        # Configure debug behavior on a cursor to evict the page positioned on when the reset API is used.
+        evict_cursor = s.open_cursor(uri, None, "debug=(release_evict)")
+
+        for i in range(1, nrows + 1):
+            evict_cursor.set_key(i)
+            self.assertEquals(evict_cursor.search(), 0)
+            self.assertEqual(evict_cursor.get_value(), valuea)
+            evict_cursor.reset()
+
+        s.rollback_transaction()
+        self.conn.set_timestamp('stable_timestamp=' + timestamp_str(40))
+        s.checkpoint()
+
+        # Rollback the prepared transaction
+        self.session.rollback_transaction()
+
+        # Simulate a server crash and restart.
+        self.pr("restart")
+        simulate_crash_restart(self, ".", "RESTART")
+        self.pr("restart complete")
+
+        self.check(valuea, uri, nrows, 40)
+
+        stat_cursor = self.session.open_cursor('statistics:', None, None)
+        hs_removed = stat_cursor[stat.conn.txn_rts_hs_removed][2]
+        stat_cursor.close()
+
+        self.assertGreater(hs_removed, 0)