Import wiredtiger: 187983a50c696eb217a780bb6b29e4bd3433c13b from branch mongodb-4.4

ref: 7e595e4a3a..187983a50c
for: 4.4.0-rc0

WT-3821       Python test case fails due to pinned timestamp warning
WT-4458       Only sweep btree handles that have been evicted from cache
WT-4671       Remove Limbo pages
WT-4674       Instantiate birthmark records using in-memory metadata
WT-4676       Search LAS for the history and compare to in-memory update
WT-4677       Re-initialize prepared updates
WT-4678       Write the test workload for relevant history in cache
WT-4681       Check if expired content is being swept from lookaside
WT-4683       Reverse the modifies when writing to LAS
WT-4685       Add new statistics for relevant history in cache
WT-4868       Aggregate btree write gen from leaf pages in salvage
WT-4954       Document duplicate backup cursors
WT-5001       Migrate Jenkins “wiredtiger-test-format-stress-sanitizer-ppc” job to Evergreen
WT-5045       Add more statistics tracking where checkpoint spends time
WT-5052       Enhance lookaside search functionality to handle WT_MODIFY records
WT-5058       Stop initializing a page with updates from lookaside
WT-5066       Extend test_las06 to support column store.
WT-5072       Modify __wt_rec_upd_select() to pull an update from lookaside
WT-5073       Review update chain traversals
WT-5089       test_las02.py fails: Unable to locate the correct record
WT-5092       Modify lookaside schema to add timestamp and transaction id to the key
WT-5098       Modify __wt_update_alloc() to accept NULL WT_ITEM values
WT-5141       Handle multiple modifies for the same key on lookaside eviction
WT-5146       Returning wrong record value for variable length columnar table
WT-5158       Remove assertion in __wt_find_lookaside_upd for cursor comparison
WT-5167       Fixing the missing pieces of page instantiation from las
WT-5186       Handle reading of LAS modifies on top of a birthmark record
WT-5191       Avoid LAS sweep server remove records that don't have disk image with proper version
WT-5203       lookaside history should no longer be preferentially evicted
WT-5212       Backup data validation tests
WT-5214       Verify potential incremental failures
WT-5215       Stress testing of incremental backup
WT-5222       Make checkpoint always choose skew newest
WT-5225       Create persistent file for History store
WT-5227       Enable python test cursor04 on relevant history feature branch
WT-5228       Several tests fail with incorrect or missing record after reconciliation changes
WT-5233       Prepared update not visible in las06
WT-5236       Enhance workgen to support draft lookaside stress workload
WT-5246       Update WiredTiger backup documentation
WT-5253       Add History store file to checkpoint target list.
WT-5254       Add aggregate timestamp info to the WT_REF.
WT-5256       Fix relevant history build after develop merged brought LIMBO reference
WT-5264       Add a delete record for every insert record into the WT history store to represent stop time pair
WT-5267       Enable storing start/stop time pair for each record in the history store
WT-5271       Remove WT_PAGE_LOOKASIDE structure.
WT-5279       Disable failing tests in the preferred way
WT-5280       Write all other versions to history store during checkpoint.
WT-5281       Assert that we're no longer writing tombstones to the history store
WT-5283       Eviction to create disk image with newest committed version.
WT-5284       Test to check eviction is writing the newest version to data store
WT-5286       Enable the data format to store time pair
WT-5289       Remove the code that does garbage collection from sweep server
WT-5290       Add new verbose flag and verbose logs for checkpoint garbage collection
WT-5291       Additional statistics for checkpoint garbage collection
WT-5292       Test the garbage collection by checkpoint
WT-5295       Disable remaining failing tests in durable history branch
WT-5298       Add a condition to verify the timestamp of a page during checkpoint of history store
WT-5300       Traverse the history store internal page for obsolete child pages by checkpoint
WT-5302       Begin writing validity window for new data format
WT-5303       Update checkpoint statistics for the new history store file.
WT-5308       Remove WT --enable-page-version-ts build configuration option
WT-5317       Eviction writes uncommitted metadata changes to disk
WT-5320       Save update restore to reuse lookaside eviction.
WT-5321       Update the stats and counters that represent lookaside inserts according to durable history
WT-5328       Evict obsolete history store page
WT-5333       Fix search not found issue due to skipped birthmark and rework txn_read
WT-5335       Read the start and stop time pairs back from cell when we reconstruct it on update chain
WT-5341       Clang sanitiser was triggered by checkpoint writing to the history store change
WT-5343       Show history store in the wt list
WT-5345       Show aggregated timestamp information for internal pages and leaf pages
WT-5347       Add ability for wt util to print historical versions of a key
WT-5353       Verify data continuity between history and data store
WT-5354       Verify history store key is not missing from the data store
WT-5355       Add the ability to dump a given btree as of a timestamp
WT-5361       Fix selecting aborted txn to write to disk
WT-5369       Don't use transaction ids from a page with a previous startup generation
WT-5385       Use WT_UPDATE_HISTORY_STORE to avoid repeatedly inserting updates to lookaside
WT-5386       Re-enable test_inmem01
WT-5388       Fix write squash statistic caused by change in reverse delta
WT-5392       Fall out of in-memory obsolete history page eviction
WT-5414       Change the usage from durable timestamp to commit timestamp during eviction.
WT-5416       Make sure that rollback to stable works on all objects in WT
WT-5417       Skip the clean pages of each tree with aggregated stop timestamp is less than stable timestamp
WT-5419       Create a TOMBSTONE update to represent the on-disk value state
WT-5420       Reconcile should consider TOMBSTONE update to replace or remove the on-disk value
WT-5421       Search the history store to find the value that can be replaced the on-disk value
WT-5422       Remove the history updates for reconciled data pages
WT-5423       Convert a history store modified value into a full update
WT-5424       Add statistics for rollback to stable operations
WT-5425       Add a new verbose flag to print the rollback to stable operation
WT-5426       Ensure rollback to stable is executed from recovery
WT-5427       Implement tests for rollback to stable
WT-5431       Merge develop branch to durable history branch
WT-5434       Remove develop-timestamp and add test for 4.0 and 4.2 pair to compatibility_test_for_mongodb_releases.sh after merge durable history to develop
WT-5441       Fix known visibility issues
WT-5446       Fix not writing to lookaside
WT-5448       Reconciliation wrongly overwrites the cell with default time pairs
WT-5451       Update reverse modify logic to always insert a modify into the history store
WT-5453       Fix cell packing for globally visible values.
WT-5454       Rename cache_overflow configuration option.
WT-5455       Fix test_hs03.py
WT-5457       single block reconciliation with saved updates can leak blocks
WT-5461       Search should not return onpage value if nothing is found by transaction read
WT-5462       Rebalance the Evergreen Python test buckets
WT-5464       Open reading history cursors on the user session
WT-5467       Make history store cursor part of each session, get rid of the cursor pool
WT-5469       Support mixing timestamped and non-timestamped updates
WT-5476       Continue writing tombstones when the tombstone is globally visable.
WT-5478       Insert records directly into history store without a txn
WT-5482       Increment cache usage when appending on-disk value to update list
WT-5484       Check visibility before saving updates for in memory reconciliation
WT-5489       page-read can race with threads locking in-memory page structures
WT-5491       Add an option to wt verify to confirm that no data exists after the stable timestamp
WT-5493       Re-enabling test_bug008
WT-5495       WT-5495 For column store, check the on-page value and history store even if the key is in the insert list
WT-5496       upd should be reset to NULL if all upd on the chain are not visible in txn read
WT-5500       Implement new history store format
WT-5501       Do not use default session to create a history store cursor when configuring
WT-5502       Re-add changes reverted by merge commit
WT-5503       We can only free updates inserted into history store after a full update.
WT-5508       Some of the txnids not cleared after restart
WT-5509       Infinite loop when reading from history store at early specific timestamp in test_util01
WT-5510       Fix test_hs01.py, test_hs06.py (test_hs_prepare_reads)
WT-5513       Don't consider TOMBSTONE/Stop time pair for history store reads
WT-5515       Enable test_hs06
WT-5516       Backup starts with base_write_gen 1
WT-5518       Split-parent code can race with other threads when checking the WT_REF.state
WT-5519       Apply version from datastore after finding a modify when possible.
WT-5522       Remove update free logic in hs_insert_updates.
WT-5523       Inserting history store needs to handle modify based on a tombstone
WT-5525       Free up 3B in the WT_REF structure
WT-5529       Improve usage of upd in txn.i
WT-5540       Call cursor disable bulk insert on first insert to history store.
WT-5541       Use snapshot isolation whenever we use history store cursors in verification
WT-5542       History store not using the on disk value as the base value for modify when key boundary crossed
WT-5547       Disable all the skipped rollback to stable tests for column store types
WT-5549       Fix the recovery rollback to stable and enable the passing tests for both row and variable columnar types
WT-5551       Fix the history store insert statistics
WT-5552       Checkpoint reconciliation and page splits free the WT_REF.addr field without locking
WT-5555       Update base write gen to the maximum write gen we have seen in recover
WT-5556       Verify of a file should verify its history store content too
WT-5558       Use durable timestamp from the update instead of start
WT-5563       Transactions ID are getting wiped which causes errors in WT Verify
WT-5565       Core dump is generated  when running test_random_abort or test_random_direcio run on durable history branch
WT-5566       Update rollback to stable tests to use new statistics
WT-5567       Fix an assert in txn_read always be true
WT-5569       Update WiredTiger source code to include 2020 copyright notices for durable history
WT-5570       Refactor the __upd_alloc_tombstone() according to the new use in durable history
WT-5574       Rolling back a prepared transaction with `cursor_copy` results in a use-after-free
WT-5575       Fix the test_durable_ts01 test to expect older data after recovery
WT-5576       Temporarily add lookaside score stat and cache_overflow config option
WT-5579       Fix Evergreen memory sanitizer test failure
WT-5581       Address sanitizer test failure running bloom filter testing
WT-5582       Long unit testing sweeping cursors failing
WT-5583       Applying operations in recovery encounters unexpected operation type
WT-5587       Limit how many checkpoints are dropped by a subsequent checkpoint
WT-5589       force_stop on duplicate cursor open not returning error
WT-5590       Fix spellings so s_string passes
WT-5593       test/format assertion failure addr->size != 0
WT-5595       test/format data mismatch errors
WT-5596       Increase format stress testing scope.
WT-5597       Fix the history store file access during recovery
WT-5598       __verify_timestamp_to_pretty_string uses local buffer which is freed before access
WT-5602       Rollback transaction core dumped with  upd->start_ts >= unpack->stop_ts
WT-5603       test/format assertion failure while discarding in-memory page
WT-5605       Update test checkpoint to no longer use checkpoint cursors
WT-5607       Successful 'verify -h' calls are returning not found
WT-5610       Fix assertion for reconciling fixed length column store
WT-5611       Don't write updates with different commit and durable timestamps to data store
WT-5612       Remove history store values for non-timestamp tables
WT-5613       Remove birthmark update type
WT-5615       Coverity: Read of uninitialised value
WT-5618       Skip timestamp range overlap check if start timestamp is zero
WT-5620       Skip the history store TOMBSTONE only for rollback to stable operation
WT-5624       Incremental unit test should use offset/length ranges
WT-5625       corruption detected during validation - root page's aggregated timestamp incorrect
WT-5626       Remove assert which checks for newer updates in the history store
WT-5628       rollback_to_stable failed with no such file
WT-5631       Recovery rollback to stable for timestamped logged tables
WT-5632       Don't write stop_ts of 1 for non-timestamped delete
WT-5633       Fix another assertion for reconciling fixed length column store
WT-5636       prefix compression is slow in the history-store access pattern
WT-5638       Ignore checking visibility of history store updates as they are implicitly committed
WT-5640       test_wt2323_join_visibility fail when processing consecutive tombstones in __wt_hs_insert_updates
WT-5641       Clear history store content when deleting a key due to a globally visible tombstone
WT-5644       Appending onpage value to an aborted update triggers an assert
WT-5647       replace the WT_REF structure's WT_REF_READING state with a flag
WT-5648       Add a leaf or internal page type flag to the WT_REF structure
WT-5649       Refactor WT_REF locking, review all WT_REF.addr reads for locking issues
WT-5650       Fix a race condition between reading the WT_PAGE.modify field and the page being dirtied.
WT-5651       Fix the RTS assert to consider error scenarios of search
WT-5654       Add version information to the history store key format
WT-5658       Fix heap-use-after-free in parent split code
WT-5665       Data mismatch bug when running new version of test_checkpoint with timestamps
WT-5666       Deleting a chunk of the namespace changes the WT_REF type
WT-5667       Remove usage of checkpoint cursor in test/format
WT-5668       Prepare support with durable history: implement data format changes
WT-5678       Fix infinite looping behaviour in history store cursor positioning
WT-5680       segfault when dereferencing NULL addr while reconciling
WT-5682       Ensure that we can't apply modifies on top of tombstones
WT-5684       overflow values must be discarded when there is no update for a key
WT-5685       Set aspell dictionary to en_US
WT-5688       Memory leak detected during page overflow read
WT-5689       reduce work required for the cursor-pinned test.
WT-5690       Rollback to stable assertion failure regarding update visibility
WT-5692       Revert a test change to fix a Python hang
WT-5695       Fixed incremental backup example to use O_CREAT in the backup range case
WT-5696       test_timestamp_abort fails with data mismatch
WT-5698       Disabling bulk cursor changes broke a Jenkins compile
WT-5699       Refactor incremental backup RANGE code
WT-5700       Add smoke test script for incremental backup stress test
WT-5701       If an out-of-order update masks an on-disk value, don't append it
WT-5704       Incremental backup smoke test core dumped
WT-5706       Fix csuite-incr-backup-test calculation of value sizes
WT-5707       Reduce the test load for checkpoint stress test
WT-5712       Ensure WT command line utility treats history store consistently
WT-5713       Fix failures so test_durable_rollback_stable.py can be enabled
WT-5719       Incremental backup metadata should quote the ID string
WT-5722       Incremental backup should do a name check on identifiers
WT-5745       Don't copy a value into tombstones
WT-5747       Cope with updates out of timestamp order
WT-5753       Fix divide by zero error in test/csuite/test_incr_backup
WT-5756       heap-use-after-free in __wt_row_modify
WT-5762       Make test_hs10 more robust
WT-5767       Fix search_near invocations for history store
WT-5771       make-check-msan-test failed with use-of-uninitialized-value error on RHEL 8.0
WT-5774       Move stress test tasks into a separate build variant
WT-5775       Fix leak of updates from history store
WT-5777       Add statistic for tracking history store deletions due to key removal
WT-5780       Fix timestamp_index_build.js in noPassthrough suite.
WT-5781       Fix basic.js in parallel suite
WT-5786       Detect if a file is too small to read a descriptor block
WT-5792       Dump and verify can't see the history store
WT-5795       Disable assertion that inserts to the history store are unique
WT-5798       Check that the history store file exists before performing rollback to stable
WT-5799       Dont assume we have ordered timestamps when doing rec append original value
WT-5800       Temporarily disable history store verify
WT-5806       Perform rollback to stable on a clean shutdown
WT-5809       Invariant failure: stable timestamp does not equal appliedThrough timestamp
WT-5820       Change format.sh to forcibly quit if a test runs out of disk space.
WT-5822       Don't evict metadata updates from a running checkpoint
WT-5827       Enable test_schema_abort
WT-5830       Enable two c tests in evergreen

1 files changed, 2 insertions, 0 deletions

diff --git a/src/third_party/wiredtiger/src/docs/spell.ok b/src/third_party/wiredtiger/src/docs/spell.ok
index 1f93969ca69..95fb2756f7c 100644
--- a/src/third_party/wiredtiger/src/docs/spell.ok
+++ b/src/third_party/wiredtiger/src/docs/spell.ok
@@ -283,6 +283,7 @@ hugepage
 icount
 ie
 iflag
+incr
 indices
 init
 insn
@@ -428,6 +429,7 @@ putValue
 putValueString
 py
 qnx
+qqq
 rVv
 rdbms
 rdlock