Import wiredtiger: d9ec69f9111b036ee0b19b47368e15bff8d4818d from branch mongodb-4.2

ref: 617a81369c..d9ec69f911
for: 4.1.11

WT-4278       Clarify in docs that schema operations are not transactional
WT-4309       Increase the maximum expected LAS test reads
WT-4352       Resolve birthmarks during eviction in more cases
WT-4582       Respect prepared updates in lookaside
WT-4642       Store transaction IDs durably
WT-4670       Remove support for WiredTiger LevelDB APIs
WT-4688       Fix test and docs for correct log cursor usage
WT-4690       Make sure eviction does not split during checkpoints
WT-4697       Python3: change workgen to work with Python3
WT-4706       Add a statistic to track the lookaside table size
WT-4723       Restructure the reconciliation code
WT-4725       Python3: change miscellaneous scripts to run under Python3
WT-4726       Python3: set up pull request tester to run with Python3
WT-4728       Remove the stop timestamp from the WT_UPDATE structure
WT-4738       Tighten rules around use of timestamps
WT-4745       Update upgrading documentation before 3.2.0 WiredTiger release
WT-4746       Document that transactions without timestamps clear history
WT-4749       Fix error message formatting (possible SEGV) for prepare_transaction
WT-4751       Change __wt_timestamp_to_string() to return a pointer to simplify verbose
WT-4752       WiredTiger autoconfig check for the compiler incorrectly quoted
WT-4753       Strip the timing_stress configuration options from the base configuration
WT-4754       Change the checkpoint code to not require a list order
WT-4755       Switch to a better timestamp and transaction ID ordering convention
WT-4756       Fix comment in python integer encoder
WT-4759       Save a copy when an old overflow value is discarded
WT-4764       Avoid choosing a transaction frequency of 0 in test/format

1 files changed, 1 insertions, 0 deletions

diff --git a/src/third_party/wiredtiger/test/suite/test_timestamp16.py b/src/third_party/wiredtiger/test/suite/test_timestamp16.py
index 375150e4673..bef116d62a9 100644
--- a/src/third_party/wiredtiger/test/suite/test_timestamp16.py
+++ b/src/third_party/wiredtiger/test/suite/test_timestamp16.py
@@ -42,6 +42,7 @@ def timestamp_str(t):
 class test_timestamp16(wttest.WiredTigerTestCase, suite_subprocess):
     tablename = 'test_timestamp16'
     uri = 'table:' + tablename
+    session_config = 'isolation=snapshot'
 
     def test_read_timestamp_cleared(self):
         # Ensure that the read timestamp doesn't move our checkpoint.