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mongodb-master
ref: 46826fd9aa..6fb2e8db72
for: 5.3.0
WT-8807 Remove unused imports from Python tests
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mongodb-5.0
ref: b7739a6515..b1d217df46
for: 4.9.0
WT-6926 Update WiredTiger source code to include 2021 copyright notices
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mongodb-5.0
ref: cd4ff7ac9c..ec9b039349
for: 4.9.0
WT-4310 Add option to not abort in diagnostic builds on data corruption
WT-4833 Drop support for Python2
WT-6822 Use the correct python for all tests, and set up env for the split stress test
WT-6826 Disable python tests related to UTF decoding for OSX.
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mongodb-4.6
ref: c801f052df..1124e23db6
for: 4.5.1
WT-6027 Fix docs spelling errors and warnings
WT-6478 Cursor cache statistics not getting incremented
WT-6507 Exit cache eviction worker after our operation has timed out
WT-6544 Onpage value not appended to the tombstone restored from the data or history store
WT-6585 Panic if updates that are older than the updates in history store are inserted to history store
WT-6591 Stop checkpoint thread before closing connection in Python tests
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mongodb-4.4
ref: 94c6c16014..d74cb1a913
for: 4.3.4
WT-5372 Skip known errors for long-running format stress sanitizer tasks
WT-5383 Update WiredTiger source code to include 2020 copyright notices
WT-5398 Adding more correctness tasks into rhel80 Evergreen build variant
WT-5526 Remove visibility check in __wt_value_return_upd
WT-5536 Add zstd as a builtin compressor for WiredTiger Python package
WT-5538 Change format to ignore Evergreen timestamps in configuration files
WT-5553 Return error if primary cursor is not an incremental source
WT-5554 Account for logpath when retrieving file size in incremental backup
WT-5557 Fix the wrong page type returned when checking on-page cell
WT-5564 Buffer not extended properly when incremental bitstring grows
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mongodb-4.2
ref: 1768d66613..9416282c42
for: 4.1.11
WT-4317 Read checksum error in test_wt4156_metadata_salvage
WT-4579 Track the newest durable timestamp for each page
WT-4585 Add WT_WITH_HOTBACKUP_LOCK macro
WT-4598 Enable the assertion that the durable_timestamp is newer than or equals the commit timestamp.
WT-4640 Remove round_to_oldest in favour of roundup_timestamps
WT-4695 Python3: allow most tests to run with Python3 with small changes
WT-4696 Python3: change dist scripts to run under Python3
WT-4698 Python3: fix modify related tests
WT-4699 Python3: fix test_jsondump02.py
WT-4700 Python3: run with same source as Python2
WT-4703 Extend test/checkpoint to do removes and online checking
WT-4704 Add statistic tracking oldest active read timestamp
WT-4705 column-store no longer needs to handle WT_COL page offsets of 0
WT-4707 Failure in verifying cells with copied values
WT-4708 Coverity reported copy-paste error in WiredTiger error message
WT-4711 Python formatting errors reported while running "s_all"
WT-4714 Use the durable timestamp to determine if a page should stay dirty
WT-4724 Syntax error in wtperf_ckpt.sh when running 'dash' as default shell
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mongodb-4.2
ref: 86012f8e40..fa402fef19
for: 4.1.7
WT-4444 Extend cursor operation tracking statistics
WT-4483 Improve caching of small updates to large values
WT-4505 Add ability to manage when prepared transactions appear in checkpoints
WT-4518 Give applications a chance to handle panic before API panic returns
WT-4522 Update WiredTiger copyrights to 2019
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mongodb-4.2
ref: 63b8cf2e0b..45fd19bcb1
for: 4.1.3
WT-3879 Disallow checkpoint from evicting metadata pages
WT-4090 Low priority reads
WT-4119 Avoid restarts updating / removing during a column store scan
WT-4131 Rename lookaside to cache overflow
WT-4154 Surface the oldest read timestamp
WT-4156 Add new wiredtiger_salvage top level API
WT-4177 Backup cursor open should force a log file switch
WT-4218 Change eviction to evict prepared updates
WT-4231 Fix ctags index of functions with attributes
WT-4246 Change transaction update list to support indirect references
WT-4259 Restore ref to the previous state rather than MEM when eviction fails
WT-4261 Test salvage of out-of-sync metadata/turtle files
WT-4267 fixed-length column store operations can corrupt data
WT-4268 Random abort should wait until record files exist before starting timer
WT-4270 Add an operation field to know where threads hang
WT-4272 Increase startup timeout to 30 seconds for slow I/O systems
WT-4274 Fix memory leak in wt4156_metadata_salvage test
WT-4277 Make truncate in column stores more efficient
WT-4281 Shorten runtime of Python test suite
WT-4282 Don't transition pages from limbo to mem unless required
WT-4283 Restore WT_ERROR and use a corrupt flag
WT-4284 Print a verbose message in recovery on error too
WT-4285 Fix wt4156_metadata_salvage Coverity/lint complaints
WT-4286 Column store should skip end-of-table checks if there's an exact match
WT-4288 Don't let return value of closing conn overwrite WT_TRY_SALVAGE
WT-4289 Update WT_DATA_CORRUPTION to WT_TRY_SALVAGE in test_txn19.py
WT-4291 Fix test_txn19.py error detection
WT-4292 Add call to testutil_cleanup to avoid memory leak
WT-4300 Setting the update timestamp can overwrite the WT_REF.addr field
WT-4301 WT_CURSOR.reserve operations can leak memory when committed
WT-4305 Add a gating variable for long running prepare support
WT-4306 Fix mode if metadata pages need eviction
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mongodb-3.8
ref: 1a29eac4dc..9e50448231
for: 3.7.1
WT-2705 High throughput cache bound many threaded workloads can experience long latencies
WT-3725 Add statistics to locks around timestamp structures
WT-3750 Fast-path fs_directory_list of a single file.
WT-3768 Lookaside optimization: birthmarks
WT-3769 Fix a bug in reverse cursor walks with particular delete patterns and prefix compression enabled
WT-3779 Add support for string formats with WT_CURSOR::modify
WT-3800 test_wt2834_join_bloom_fix hang
WT-3806 Make sure rdtsc values move forward in time
WT-3807 clang static analysis updates
WT-3810 wt_rdtsc calibration needs to be longer and verify validity
WT-3812 debugging page output should handle complex key/value items.
WT-3816 Enable prefix compression on the lookaside table
WT-3819 clang static analysis improvements
WT-3820 Add a WT_SESSION.breakpoint method for Python debugging.
WT-3822 Update WiredTiger copyrights to 2018
WT-3824 tsc_nsec_ratio can compute to zero and cause divide by zero bug
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mongodb-3.8
ref: 596a3c7c01..1a29eac4dc
for: 3.7.1
WT-3079 Make sure eviction visits all trees
WT-3133 Detect or track long latency operations
WT-3295 Allow LSM to merge into custom data sources
WT-3587 Remove HAVE_VERBOSE conditional compilation
WT-3654 Fix warning in Windows build on evergreen
WT-3716 Restore the WT_VERB_TEMPORARY verbose flag.
WT-3720 flags macros cast flags to unsigned values, hiding warnings.
WT-3732 Handle adding WT indices while cursors on the table are open
WT-3734 Fix undefined behavior in verbose output
WT-3738 Review internal session allocation accounting
WT-3753 Building on Windows --enable-java
WT-3772 Hot backup causes uncontrolled growth of WiredTigerPreplog files
WT-3774 Enhance Python lookaside testing to cover cursor modify
WT-3776 Cursor remove operation unpins page too early
WT-3780 Improve error messages on invalid WT_CURSOR::modify usage
WT-3783 Fix transaction isolation to use the correct enum
WT-3786 Transactions with timestamps should read their writes
WT-3787 test_compact02 failed as compaction halted due to eviction pressure
WT-3790 Switch statistics to rdtsc from epoch calls
WT-3793 WiredTiger page debug dump functions should unpack integer keys
WT-3794 Coverity 1383547 and lint
WT-3795 lint cleanups for the op-tracking software, reduce record write size.
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mongodb-3.6
ref: 78109ca3fe..7aaeaaa054
for: 3.5.9
SERVER-28820 Recovery failed: WT_NOTFOUND: item not found
SERVER-28835 Fix a memory leak in WiredTiger on error when creating thread group
WT-2972 Add interface allowing partial updates to existing values
WT-3041 Failure of test_perf01 on PPC
WT-3063 Reserve records for read-modify-write
WT-3076 Add a general-purpose epoch manager
WT-3123 Thread group holding lock across thread join
WT-3142 Add a workload generator application
WT-3158 Fix structure layout on Windows.
WT-3160 Improve eviction of internal pages from idle trees
WT-3197 aarch64 CRC32C support fails to compile on non-linux ARM platforms
WT-3219 Make the clang-analyzer job fail when lint is introduced
WT-3222 Review and enhance log statistics
WT-3245 Avoid hangs on shutdown when a utility thread encounters an error
WT-3247 Test should exit instead of abort to avoid a core dump
WT-3248 Performance degradation in workload with large overflow items
WT-3253 txn07 test problem
WT-3258 Improve visibility into thread wait time due to pages exceeding memory_page_max
WT-3261 add a checkpoint epoch to avoid draining the eviction queue
WT-3262 Schema operations shouldn't wait for cache
WT-3263 Allow archive on restart/recovery if clean shutdown
WT-3264 Permanent change to disable logging should eventually remove all logs
WT-3265 Verify hits assertion in eviction when transiting handle to exclusive mode
WT-3266 Thread group deadlock
WT-3267 Upgrade copyright notices from 2016 to 2017.
WT-3268 Failure to close cursor can get wiredtiger stuck in a cursor-close loop
WT-3269 Miscellaneous cleanup changes
WT-3271 Eviction tuning stuck in a loop
WT-3275 stress test sanitizer failure
WT-3278 log the row-store cursor key instead of page key
WT-3281 stress test sanitizer failure
WT-3282 Stuck in conn cache pool destroy join
WT-3284 tree-walk restart bug
WT-3287 review WiredTiger internal panic checks
WT-3288 fix error codes for event_handler to be consistent in file operations
WT-3292 review/cleanup full-barrier calls in WiredTiger
WT-3293 Make internal symbols externally visible
WT-3296 LAS table fixes/improvements
WT-3297 support the gcc/clang -fvisibility=hidden flag
WT-3300 Coverity 1374542: Dereference after null check
WT-3302 Failure to create cache pool manager thread results in crash when destroying cache pool
WT-3303 Deadlock during first access to lookaside table
WT-3307 FI testing: segfault in python test test_bug013 when fault introduced reading turtle file
WT-3312 encryption btree configuration test
WT-3313 Replace calls to the deprecated LZ4_compress function
WT-3314 clarify error handling
WT-3327 Checkpoints can hang if time runs backward
WT-3331 Test format aborted due to time rollback
WT-3333 Make it possible to store 0 bytes into a 'u' format via Python
WT-3334 static test suite's BaseDataSet class has 'u' value format bugs
WT-3339 The CURSOR_UPDATE_API_CALL macro will dump core on a NULL btree handle
WT-3342 Create a new WiredTiger 2.9.2 release
WT-3343 WiredTiger database close can attempt unlock of a lock that's not held.
WT-3345 Improve rwlock scaling
WT-3348 Lint, Windows warnings.
WT-3351 Recovery assertion failure: old_lognum < lognum
WT-3354 Coverity issues 1375904-1375907
WT-3356 rwlock assertion failure on PPC
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mongodb-3.4
ref: ef9a7983ea..74430da40c
for: 3.4.0
SERVER-26753 Minor speed regression (13%) and 'choppy' performance in 3.4 vs 3.2
WT-2415 Add option for join cursors to return false positives
WT-2945 Occasional hang running reconfigure fuzz test
WT-2947 test suite populate functions need refactoring
WT-2953 Test format failure - stuck cache with 1/42MB dirty
WT-2961 Add a version drop-down to the web version of the docs
WT-2964 WTPERF parallel-pop-btree hung in populate phase
WT-2968 backup cursor opens every file
WT-2971 Add documentation for raw compression to the WT docs
WT-2975 Reduce the memory allocated for statistics
WT-2991 Coverity issue 1365198
WT-2998 Add error messages to error returns that might be confusing.
WT-2999 Memory leak in join WT_CURSOR with custom extractor
WT-3001 WT_EXTENSION_API references are named inconsistently.
WT-3003 log generation should not auto generate the record and op types
WT-3005 Add top-level .gitignore file.
WT-3007 Remove duplicated word in comment
WT-3008 Run wtperf stress testing against all maintained branches
WT-3009 Test format hung/aborted with small cache (sub 10mB)
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branch mongodb-3.4
ref: d8fb874..a9e9696
for: 3.3.11
SERVER-24971 Excessive memory held by sessions when application threads do evictions
WT-1162 Add latency to Jenkins wtperf tests and plots
WT-2026 Maximum pages size at eviction too large
WT-2239 Make sure LSM cursors read up to date dsk_gen, it was racing with compact
WT-2353 Failure to create async threads as part of a wiredtiger_open call will cause a hang
WT-2380 Make scripts fail if code doesn't match style
WT-2486 Update make check so that it runs faster
WT-2578 remove write barriers from the TAILQ_INSERT_XXX macros
WT-2648 cache-line alignment for new ports
WT-2665 Limit allocator fragmentation in WiredTiger
WT-2693 Check open_cursor error paths for consistent handling
WT-2708 split child-update race with reconciliation/eviction
WT-2711 Change statistics log configuration options
WT-2728 Don't re-read log file headers during log_flush
WT-2729 Focus eviction walks in largest trees
WT-2730 cursor next/prev can return the wrong key/value pair when crossing a page boundary
WT-2731 Raw compression can create pages that are larger than expected
WT-2732 Coverity analysis defect 99665: Redundant test
WT-2737 Scrub dirty pages rather than evicting them
WT-2738 Remove the ability to change the default checkpoint name
WT-2739 pluggable file systems documentation cleanups
WT-2743 Thread count statistics always report 0
WT-2744 partial line even with line buffering set
WT-2746 track checkpoint I/O separately from eviction I/O
WT-2751 column-store statistics incorrectly calculates the number of entries
WT-2752 Fixes to zipfian wtperf workload config
WT-2755 flexelint configuration treats size_t as 4B type
WT-2756 Upgrade the autoconf archive package to check for swig 3.0
WT-2757 Column tables behave differently when column names are provided
WT-2759 Releasing the hot-backup lock doesn't require the schema lock.
WT-2760 Fix a bug in backup related to directory sync. Change the filesystem API to make durable the default
WT-2762 wtstats tool fails if checkpoint runs
WT-2763 Unit test test_intpack failing on OSX
WT-2764 Optimize checkpoints to reduce throughput disruption
WT-2765 wt dump: indices need to be shown in the dump output
WT-2767 test suite needs way to run an individual scenario
WT-2769 Update documentation to reflect correct limits of memory_page_max
WT-2770 Add statistics tracking schema operations
WT-2772 Investigate log performance testing weirdness
WT-2773 search_near in indexes does not find exact matches
WT-2774 minor cleanups/improvements
WT-2778 Python test suite: make scenario initialization consistent
WT-2779 Raw compression created unexpectedly large pages on disk
WT-2781 Enhance bulk cursor option with an option to return immediately on contention
WT-2782 Missing a fs_directory_list_free in ex_file_system.c
WT-2785 Scrub dirty pages rather than evicting them: single-page reconciliation
WT-2791 Enhance OS X Evergreen unit test
WT-2793 wtperf config improvements
WT-2796 Memory leak in reconciliation uncovered by stress testing
WT-2798 Crash vulnerability with nojournal after create during checkpoint
WT-2800 Illegal file format in test/format on PPC
WT-2801 Crash vulnerability from eviction of metadata during checkpoint
WT-2802 Transaction commit causes heap-use-after free
WT-2803 Add verbose functionality to WT Evergreen tests
WT-2804 Don't read values in a tree without a snapshot
WT-2805 Infinite recursion if error streams fail
WT-2806 wtperf allocation size off-by-one
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branch mongodb-3.4
ref: 44463c5..7fea169
WT-2355 Fix minor scratch buffer usage in logging.
WT-2348 xargs -P isn't portable
WT-2347 Java: schema format edge cases
WT-2344 OS X compiler warning
WT-2342 Enhance wtperf to support background create and drop operations
WT-2340 Add logging guarantee assertions, whitespace
WT-2339 format post-rebalance verify failure (stress run #11586)
WT-2338 Disable using pre-allocated log files when backup cursor is open
WT-2335 NULL pointer crash in config_check_search with invalid configuration string
WT-2333 Add a flag so drop doesn't block
WT-2332 Bug in logging write-no-sync mode
WT-2331 Checking of search() result for reference cursors before join()
WT-2328 schema drop does direct unlink, it should use a block manager interface.
WT-2326 Change WTPERF to use new memory allocation functions instead of the standard
WT-2321 WT-2321: race between eviction and worker threads on the eviction queue
WT-2320 Only check copyright when cutting releases
WT-2316 stress test failure: WT_CURSOR.prev out-of-order returns
WT-2314 page-swap error handling is inconsistent
WT-2313 sweep-server: conn_dhandle.c, 610: dhandle != conn->cache->evict_file_next
WT-2312 re-creating a deleted column-store page can corrupt the in-memory tree
WT-2308 custom extractor for ref_cursors in join cursor
WT-2305 Fix coverity scan issues on 23/12/2015
WT-2296 New log algorithm needs improving for sync/flush settings
WT-2295 WT_SESSION.create does a full-scan of the main table
WT-2287 WT_SESSION.rebalance
WT-2275 broken DB after application crash
WT-2267 Improve wtperf throttling implementation to provide steady load
WT-2247 variable-length column-store in-memory page splits
WT-2242 WiredTiger treats dead trees the same as other trees in eviction
WT-2142 Connection cleanup in Python tests
WT-2073 metadata cleanups
WT-1801 Add a directory sync after rollback of a WT_SESSION::rename operation
WT-1517 schema format edge cases
SERVER-22064 Coverity analysis defect 77699: Unchecked return value
SERVER-21619 sys-perf: WT crash during core_workloads_WT execution
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