4.4 Changelog

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4.4.14 Changelog

4.4.13 Changelog
4.4.12 Changelog
4.4.11 Changelog
4.4.10 Changelog
4.4.9 Changelog
4.4.8 Changelog
4.4.7 Changelog
4.4.6 Changelog
4.4.5 Changelog
4.4.4 Changelog
4.4.3 Changelog
4.4.2 Changelog
4.4.1 Changelog

4.4.14 Changelog

Sharding

SERVER-55429 Abort migration earlier when receiver is not cleaning overlapping ranges

TTL

SERVER-52724 Increment TTL passes server status metric after the TTL work has finished

Internals

SERVER-44847 Clean up explicit 'comment' fields name attached to distinct and count commands in IDL files
SERVER-56003 ninja + icecream with changing compilers doesn't regen run-icecc.sh
SERVER-57000 Fix handling of correlated pipeline with facet
SERVER-57037 Improve precision of operator counters
SERVER-57676 Wait for a checkpoint before releasing the "hangOplogCapMaintainerThread" in oplog_rollover.js
SERVER-58310 ThreadPoolTaskExecutor is memory unsafe when task cancellation occurs around the same time an exhaust network response is received
SERVER-59435 Fix a double free inside DocumentSource::optimizeAt()
SERVER-60412 Host memory limit check does not honor cgroups v2
SERVER-61769 Attempting to run an aggregation with $out or $merge in a transaction on a sharded cluster leaves idle cursors open
SERVER-62229 Fix invariant when applying index build entries while recoverFromOplogAsStandalone=true
SERVER-62242 $indexOfArray does not work with duplicate values in array
SERVER-63315 Count command only accepts a string comment but should accept any BSON type in 4.4
SERVER-63497 Fix icecream debugging
SERVER-63974 Pin version of itsdangerous python dependency
SERVER-64079 $search commands fail on 4.4 binary with FCV 4.2
SERVER-64202 [4.4] initial_sync_aborts_two_phase_index_builds_hide_index.js can fail if the primary can't see a majority of the replica set
SERVER-64304 Using --recoverFromOplogAsStandalone can result in index builds crashing the server
SERVER-64410 Investigate whether we need to sort on searchScore when storedSource is true in $search
SERVER-64554 abortIndexBuild oplog entry has no effect when run with --recoverFromOplogAsStandalone
SERVER-64757 Improve error messages when scons fails to generate-ninja on Windows
SERVER-64772 Don't finish index build before stepdown in index_killop_after_stepdown.js
SERVER-64983 Release Client lock before rolling back WT transaction in TransactionParticipant::_resetTransactionState
SERVER-65032 Pin python package BaseResponse for ocsp suite
SERVER-65421 Fix package test failures on RHEL 6/7
SERVER-65422 Fix package test failures on Ubuntu 16.04
SERVER-65690 [v4.4] Skip backup_restore_abort_and_start_index_build.js for single-phase index build variants
SERVER-65718 Fix mypy error
WT-8074 Panic in reconciliation if inserting content into the history fails
WT-8149 Updating metadata salvage csuite test to handle salvaging table metadata without salvaging file metadata
WT-8198 Switch the bulk load cursor to a scratch buffer
WT-8270 Updating the time window clear obsolete stage of reconciliation to correctly consider global visibility.
WT-8362 Remove or rewrite HS entries of a key when OOO tombstone is written to datastore
WT-8422 Clear the on-disk cell time window if it is obsolete
WT-8450 Report stats in hs_cleanup_stress, don't validate them
WT-8598 Avoid checkpoint cleanup always on shutdown
WT-8649 WT_SESSION methods cannot release scratch buffers unless reset or closing
WT-8708 Fix timestamp usage error in test/checkpoint
WT-8743 Configure hs_cleanup configuration to stress the cache less
WT-8753 Add tombstone when rolling back in-memory, prepared, reconciled updates
WT-8799 Disable documentation update on mongodb-5.0
WT-8824 Disable code coverage measurement on mongodb-4.4
WT-8874 Disable compatibility tests on mongodb-5.0
WT-8879 Set the OOO flag when the selected tombstone is globally visible
WT-8894 Find the path to the mongod executable for many-collection-test
WT-8909 Disable cpp test search_near_01 on 4.4
WT-8924 Don't check against on disk time window if there is an insert list when checking for conflicts in row-store

4.4.13 Changelog

Sharding

SERVER-26755 Collection chunk loading is aborted entirely if fetching all the chunks takes more than 30 seconds
SERVER-62065 Upgrade path from 3.6 to 4.0 can leave chunk entries without history on the shards
SERVER-62171 Add logs to output of runConcurrentMoveChunk in sharding_statistics_server_status.js
SERVER-62906 Add a check in the createCollection/shardCollection path verifying the collection name length

Replication

SERVER-48059 concurrency_replication_for_backup_restore's WaitForReplication hook should ignore shutdown errors due to quiesce mode

Query

SERVER-40691 $nin:[[],...] queries are not indexed
SERVER-59754 Incorrect logging of queryHash/planCacheKey for operations that share the same $lookup shape
SERVER-62147 Exhaust query using the OP_QUERY protocol is broken when more than one getMore batch is required

Storage

SERVER-55483 Add a new startup parameter that skips verifying the table log settings

Internals

SERVER-48068 assert.soon() with hang analyzer enabled inside a try/finally can lead to an invariant failure in ProgramRegistry
SERVER-48328 Remove index key generation error whitelist
SERVER-48367 envp may be unreliable in global initializers
SERVER-49882 Log status in the catch block in JSThread::run()
SERVER-53239 fix race in shared future unit test
SERVER-57037 Improve precision of operator counters
SERVER-57312 Pin transitive Python dependencies and use the pinned file for installation in Evergreen
SERVER-57662 Wait for config.system.sessions collection to exist on the config server before refreshing logical session cache
SERVER-59375 Should collect summary statistics about transient faults
SERVER-59779 Call asCluster() before replSetFreeze in ReplSetTest
SERVER-60392 Fix timing in priority_takeover_two_nodes_equal_priority test.
SERVER-61315 Ldap health check executor should support aborted tasks
SERVER-61662 SCons configure checks should always run with verbosity
SERVER-61837 [v4.4] Ensure waiting for majority write concern after index creation in the destination shard of a migration on empty collections
SERVER-61977 Concurrent rollback and stepUp can cause a node to fetch from a timestamp before lastApplied once it has stepped down.
SERVER-62085 Use more bits for hashedMultikeyMetadataPaths in validation
SERVER-62336 Tolerate SnapshotTooOld errors in dbCheck testing
SERVER-62368 Range deleter must honor rangeDeleterBatchDelayMS
SERVER-62380 Wait for majority commit point to be advanced on each node before starting rollback test in rollback_set_fcv.js
SERVER-62465 After intensities are updated, the resulting health check should run with the new values of intensities set.
SERVER-62511 Race in dbcheck_no_history_on_secondary.js
SERVER-62513 RunDBCheckInBackground should retry on Interrupt errors
SERVER-62514 dbcheck_write_concern.js should prevent primary from stepping down
SERVER-62668 Synchronize access to ImpersonatedUserMetadata in OperationContext.
SERVER-62678 Migrate LDAP health checker to use permanent OpenLDAP & AD servers
SERVER-62706 dbcheck.js: handle replica sets with mixed debug/release members
SERVER-62824 Fix op_msg_fuzzer initialization order on v4.4
SERVER-62875 [v4.4] Archive data files for the multi_stmt_txn_jscore_passthrough_with_migration suite
SERVER-62928 Increase interval between LDAP checks in health observer tests
SERVER-62948 Ensure FTDC collectors don't have a read timestamp
SERVER-63057 /usr/bin/dig LDAP observer test relies upon is flaky
SERVER-63097 stepdown_race_with_transaction.js should use the "uses_transactions" tag.
SERVER-63141 Difference in $lookup/$redact/$let behaviour with pipeline optimization
SERVER-63197 Pin microbenchmarks genny version
SERVER-63203 Chunk splitter never splits if more than 8192 split points are found
SERVER-63234 Better logging to explain LDAP health check flakiness
SERVER-63422 Fix build failure for op_msg_fuzzer test on v4.4
SERVER-63505 Ensure arbiter recognizes primary node in rollback_views.js
WT-8004 Create a read order for the architecture guide
WT-8320 Select updates restored from history store irrespective of visibility
WT-8424 Use consistent toolchain in little-endian
WT-8477 Enforce the use of Pymongo 3.12.2 in our Evergreen tests
WT-8605 Disable the perf tests for non-develop branches in Evergreen

4.4.12 Changelog

Sharding

SERVER-61637 Review range deleter batching policy

Internals

SERVER-53239 fix race in shared future unit test
SERVER-58152 Create Feature flag for Remove Faulty Mongos From Cluster Topology
SERVER-58153 Enable Feature flag for Remove Faulty Mongos From Cluster Topology
SERVER-59356 Create dummy FaultManager singleton, FaultStatus enum and dummy unit test
SERVER-59357 Create dummy Fault class and dummy unit test for it
SERVER-59358 Create FaultFacet interface, mock implementation and unit test running mock that imitates a failure
SERVER-59360 Create HealthObserver interface, mock implementation and unit test invoking the periodic check with mocked failure
SERVER-59361 Implement periodic health check thread pool
SERVER-59362 Setup Fault Manager State Machine
SERVER-59364 Should move to the OK state after performing a successful round of health checks when in the StartupCheck state
SERVER-59365 Should not transition to OK state if initial health checks are not completed successfully
SERVER-59366 Progress monitor for periodic health check
SERVER-59367 Should create in-memory Fault instance when entering the TransientFault state
SERVER-59368 The system should properly handle a health checker being turned on/off
SERVER-59370 Should Transition to ActiveFault state when in the TransientFault state for kActiveFaultDuration
SERVER-59382 Enforce non-critical facets not entering ActiveFault state
SERVER-59386 Should provide the ability to perform periodic LDAP health checks
SERVER-59394 Setup integration test simulating ldap failure scenario
SERVER-59397 implement randomization for health check periods
SERVER-59496 Fault class should be a container of active fault facets
SERVER-59522 HealthCheckStatus should track fault status and lifetime
SERVER-59567 Periodic check should invoke observers, simulate HealthObserver Mock failure
SERVER-59608 Coverity analysis defect 120502: Parse warning
SERVER-59912 Initial no-op scaffolding of the Ldap health checker
SERVER-60079 Common health observer code to incorporate generic patterns from Ldap observer
SERVER-60084 Fix clang related compile failure in Enterprise Ldap
SERVER-60316 FaultManager should start with periodic checks disabled
SERVER-60587 Implement FaultFacet
SERVER-60944 Change interface for updateWithSuppliedFacet and update
SERVER-61220 Integration test for Progress monitor
SERVER-61368 FaultManager test suite should use real thread pool
SERVER-61438 Fix race in health_observer_test.cpp
SERVER-61529 Ldap tests should wait for connection reaper to be terminated
SERVER-61871 use tassert for state machine programmer errors
SERVER-61872 Fix thread pool starvation in FaultManager
SERVER-61873 LDAP health observer runtime params
SERVER-61914 add fault facet details to FaultImpl::toBSON
SERVER-61921 Link failure in noSSL mode in FaultManager
SERVER-61930 Individual health observers should return an error if a timeout period elapses when doing a single health check
SERVER-61956 fix data race when accessing the state machine's state
SERVER-62037 Fix replica set definition in the system perf yaml file for linux-1-node-15gbwtcache
SERVER-62084 Serializer for FaultFacetType is broken
SERVER-62096 /proc/<id>/smaps is not available
SERVER-62098 Guard healthCheckContexts with mutex in fault_manager.cpp
SERVER-62174 FaultManager to support dynamic configuration of health check intervals
SERVER-62188 Shutdown race with use after free in DeadlineFuture
SERVER-62197 Remove extra state mutex lock.
SERVER-62202 Log ID 5936504 should contain observer type as string
SERVER-62203 change the thread name "Health checks progress monitor" to "FaultManagerProgressMonitor"
SERVER-62204 do not schedule health check if observer is not enabled
SERVER-62226 Disable dbcheck_no_history_on_secondary.js on EFT
SERVER-62280 Premature transition to ok during initial checks in fault_state_machine_test.cpp
SERVER-62291 Find replacement for skipValidatingExitCode in the 4.4 backport of the health monitor
SERVER-62312 Enable feature flag in 4.4 backport and other housekeeping
SERVER-62371 Syntax error on rare code path in ldap_mongos_health_checking.js
SERVER-62373 LDAP health check integration test should assert stats
SERVER-62555 Ldap integration test should crash the server

4.4.11 Changelog

Platform Support

Starting in MongoDB 4.4.11 the following platforms are no longer supported:

Enterprise Edition

Ubuntu 18.04 PPC64LE

Community Edition

RHEL-72-s390x

Sharding

SERVER-45149 replSetStepDown command in txn_two_phase_commit_failover.js should not timeout
SERVER-51329 Unexpected non-retryable error when shutting down a mongos server
SERVER-53335 Queries, updates, and deletes with non-"simple" collations may miss documents when using hashed sharding
SERVER-54623 Decrease number of jobs in causal consistency passthrough suites
SERVER-55382 Ignore error from retryable write being converted to transaction and that transaction failing in random_moveChunk_update_shard_key.js
SERVER-55392 Add a timestamp field to config.rangeDeletions
SERVER-55412 Mirrored reads should propagate the shard version field
SERVER-56226 [v4.4] Introduce 'permitMigrations' field on config.collections entry to prevent chunk migrations from committing
SERVER-56227 Add user-facing command to set allowMigrations to false for a sharded collection
SERVER-59890 Exclude migration_coordinator_shutdown_in_critical_section.js test from the config stepdown suite
SERVER-60552 Separate test for non-existing collection in metadata_manager_test
SERVER-60652 Backport the autoSplitVector logic to v4.4
SERVER-60682 TransactionCoordinator may block acquiring WiredTiger write ticket to persist its decision, prolonging transactions being in the prepared state
SERVER-60738 Update metadata manager tests for non-existing collections
SERVER-60804 Remove shard version checks from cursor_valid_after_shard_stepdown
SERVER-61461 update_shard_key_doc_moves_shards.js fails due to spurious refreshes from secondaries
SERVER-61628 Do not reschedule range deletion task when numDeleted < numDocsToRemovePerBatch
SERVER-61689 ActiveMigrationsRegistry::lock method doesn't properly handle its exceptions
SERVER-61816 cancel_coordinate_txn_commit_with_tickets_exhausted.js can hang forever due to race condition between transaction reaper and transaction coordinator

Replication

SERVER-54909 In replSetGetStatus, report last durable and last applied operation wall times for all members
SERVER-55376 Reconfig can roll back committed writes in PSA sets
SERVER-60946 Race condition in replsetprio1.js when initiating replset with nodes having different priorities

Query

SERVER-57588 Inconsistent query results when an array position is indexed whose value is an array
SERVER-60586 out_max_time_ms.js does not correctly enable "maxTimeNeverTimeOut" failpoint leading to spurious test failure

Aggregation

SERVER-59613 $range expression should error if it exceeds memory limit
SERVER-59924 Error executing aggregate with $out with "available" read concern on sharded clusters

Storage

SERVER-30846 Run dbCheck as background workload in FSM tests
SERVER-45953 Exempt oplog readers from acquiring read tickets
SERVER-48293 remove inactive index builds from config.system.indexBuilds

Operations

SERVER-28953 Capture df (disk full) statistics in FTDC

Internals

SERVER-34597 shardedcluster.py does not wait correctly on shards initialization
SERVER-46521 Extend mirrored reads generation tests
SERVER-46533 CmdUpdate should persist underlying BSON
SERVER-48673 Worker thread may exhaust command retries when using passConnectionCache=true in concurrency stepdown suites
SERVER-49028 initial_sync_aborts_two_phase_index_builds.js can fail if the primary can't see a majority of the replica set
SERVER-51087 Add testing utility for creating an empty sharded collection with the specified bounds
SERVER-55395 4.0.23 does not build with gcc 10
SERVER-56602 Track usage of match expressions in serverStatus
SERVER-56801 Update placeholder links for the reconfig check in PSA sets
SERVER-56887 setIndexCommitQuorum command returns {ok: 1} when run against a mongos on a non-existent index build
SERVER-56919 Add validation for memberIndex to reconfigToPSASet() shell helper
SERVER-57284 Wait for config commitment in reconfig_for_psa_set_shell.js
SERVER-57289 redact should not convert BSONArray into BSONObj
SERVER-57605 Expose Decimal128 equality comparison helper to shell
SERVER-58119 single_node_set_new_hostname.js needs to call replSetReconfig with an assert.soonNoExcept
SERVER-58385 recovery oplog application updates multikey info on wrong collection
SERVER-58406 Enable debug logging when the TestingProctor is enabled
SERVER-58412 Changing settings.chainingEnabled in replica set configuration should affect change in sync sources
SERVER-58636 Initial syncing node can miss final oplog entry when calculating stopTimestamp against a secondary sync source
SERVER-58888 $unionWith explain with mode "executionStats" does not account for stages which are pushed down
SERVER-59108 Resolve race with transaction operation not killed after step down
SERVER-59191 SPIKE: git.get_project fails to clone
SERVER-59226 Deadlock when stepping down with a profile session marked as uninterruptible
SERVER-59329 Make sure that withTemporaryOperationContext throw an error if the node is no longer a primary
SERVER-59409 Race between reconfig replication and stepup can cause RSM to be stuck in reporting ReplicaSetNoPrimary
SERVER-59459 mongodb fails to build with glibc-2.34
SERVER-59672 Fix stopping replication in step_down_during_draining3.js
SERVER-59858 Add observability for tasks scheduled on the reactor thread
SERVER-59879 Adjust maxTimeMS value to allow for slower execution in the parallel test suite
SERVER-60096 Add rollbackHangCommonPointBeforeReplCommitPoint failpoint to RVR
SERVER-60218 Improve $group stage
SERVER-60310 OCSP response validation should not consider statuses of irrelevant certificates
SERVER-60326 Windows Server fails to start when X509 certificate has empty subject name
SERVER-60456 LDAPBindOptions go out of scope during heavily delayed binds on Windows
SERVER-60511 getPinnedOplog return value should always be std::min compared with the pinned timestamp
SERVER-60520 Default 'enableSearchMeta' to true (v4.4)
SERVER-60550 migration_util function may miss some response errors when submitting remote commands through sendToRecipient()
SERVER-60582 [v4.4] initiate_emrc_false.js needs to wait for the initial checkpoint
SERVER-60588 $multiply incorrectly throws an error in some cases in the classic engine
SERVER-60606 Race condition during initial sync when index builds start in data cloning phase
SERVER-60670 use a separate branch instead of a specific commit for TPCC
SERVER-60671 Remove dagger
SERVER-60685 TransactionCoordinator may interrupt locally executing update with non-Interruption error category, leading to server crash
SERVER-60756 Add additional logging for failed updates in multi_statement_transaction_atomicity_isolation.js
SERVER-60788 merge_causes_infinite_loop.js attempts to expose a problem that no longer exists
SERVER-60809 Add ability to not idLookup after $search
SERVER-60877 Correct inadvertent copy of MutableOplogEntry on replLogUpdate
SERVER-60928 [4.4] Latest 4.2 mongos cannot startup with a sharded collection having compound hashed shard key
SERVER-60948 Insert document in new collection in migration_id_index.js to await successful index build on secondary
SERVER-60971 Remove calls to BF suggestion service
SERVER-61164 Accept error code 48 (Inappropriate authentication) as a valid response for LDAP liveness check
SERVER-61427 Unique index builds can cause a loss of availability during commit due to checking many false duplicates
SERVER-61466 Port the RSM { electionId, setVersion } ordering to scanning RSM
SERVER-61479 Increase the number of retries to connect to a replica set following a stepdown
SERVER-61550 Modify auto_workload_path in perf.yml to be relative to cwd
SERVER-61681 Wait for replSetGetStatus to update in replSetGetStatus_member_wall_times.js
SERVER-61690 Adjust stored fields protocol for atlas search
SERVER-61738 Revive dbCheck.js and make it deterministic
SERVER-61743 The -fno-builtin-memcmp flag shouldn't be applied except on x86_64 platforms
SERVER-61748 dbCheck should not hold a strong database lock during batches
SERVER-61754 dbCheck should not hold a strong collection lock during batches
SERVER-61757 Add a dbCheck command option to customize the batch size
SERVER-61791 pin pymongo
SERVER-61846 Prevent redact from throwing BSONObjectTooLarge
SERVER-61852 dbCheck should tryLock the collection with backoff
SERVER-61862 Expose $_internalReadAtClusterTime command in v4.4
SERVER-61877 Remove catalog consistency verification from dbCheck
SERVER-61955 Expose dbCheck as a generally available command
SERVER-62022 Reduce dbCheck info logging in production, log start and stop
SERVER-62023 Improve dbCheck observability
SERVER-62041 Add a maximum batch execution time to dbCheck
SERVER-62164 Remove several obsoleted build variants across all stable branches
SERVER-62210 Fix dbCheck progress meter handling of dropped and recreated collections
SERVER-62212 Support writeConcern for dbCheck
WT-5009 Migrate remaining wiredtiger-perf-lsm tests to Evergreen
WT-5743 Rewrite cells when the transaction ids are cleared for VLCS
WT-5939 Fix naming conflict resulting in "cannot remove directory" error in test_config06 (OSX only)
WT-6077 Add new stats to track compact progress
WT-7250 Fix the test to perform explicit eviction instead of relying on low cache size
WT-7494 Add Python test to trigger update restore eviction during recovery
WT-7885 Ensure WiredTiger testing uses tcmalloc where possible
WT-8026 Run PPC/zSeries/macOS mainline builds less frequently in Evergreen
WT-8067 Fix the code that ensures to insert the newest history store value as full update
WT-8116 Fix issues related to inheritance in the cpp testing framework
WT-8147 Detect invalid syntax in cppsuite configs
WT-8168 Fix unused variables in search near cpp tests
WT-8199 Make s_all accept Python PEP8 compliant line breaks
WT-8203 Fix the layering violation in accessing the page
WT-8204 Fix possible race condition in "wt7989_compact_checkpoint" CSuite test
WT-8214 Only publish the docs from the WiredTiger develop Evergreen project
WT-8225 Fix data race in zstd get context
WT-8226 Fix largest_key failed to consider prepared update
WT-8395 Inconsistent data after upgrade from 4.4.3 and 4.4.4 to 4.4.8+ and 5.0.2+
WT-8534 Allow retrieving checkpoint snapshot for backup restore recovery
WT-8576 Enable logging in test checkpoint

4.4.10 Changelog

Security

SERVER-50050 Build with --ssl=off fails

Sharding

SERVER-53332 Change ShardRegistry::_connStringLookup to store connection strings as std::strings
SERVER-54064 Sessions on arbiters accumulate and cannot be cleared out
SERVER-55975 The core/find_and_modify.js test is not suitable to run in the stepdown suites
SERVER-59160 Disable balancer in test_stacked_migration_cleanup.js
SERVER-59769 Balancer conflicts with chunk migration tests
SERVER-59916 T{1, 2}Starts{First, Second}AndWins In WriteConflictHelpers Does Not Synchronize Committing Of Failed Transaction
SERVER-60142 Shard can migrate on top of orphans after filtering metadata was cleared
SERVER-60419 Make CleanUpForMigrateIn deterministic

Replication

SERVER-50241 PeriodicShardedIndexConsistencyChecker should skip dropped collections
SERVER-55376 Reconfig can roll back committed writes in PSA sets
SERVER-58988 Avoid sync source selection cycle during primary catchup.
SERVER-60153 More INFO level logs during election

Query

SERVER-51806 bulk key insertion phase of index build holds IX lock without yielding
SERVER-54791 Excessive file descriptor usage during index build with external sort
SERVER-57321 $mod match expression incorrectly handles NaN, Infinity and large values

Aggregation

SERVER-49214 Add $toHashedIndexKey expression

Operations

SERVER-53242 Always log collmod command

Internals

SERVER-34597 shardedcluster.py does not wait correctly on shards initialization
SERVER-46147 Update repair to fix multikey errors without performing an index rebuild
SERVER-49340 Add repair mode to validate for startup --repair
SERVER-52850 Remove assertion from initial_sync_nodes_maintain_and_gossip_commit_point.js
SERVER-53448 Make ftdc_mirrored_reads.js resilient to slow machines
SERVER-54825 Use 'toArray()' in addition to array access after 'find()' in rslib.js
SERVER-55904 Consolidate getFirstOplogEntry and getLeastRecentOp helpers
SERVER-56326 Add a round() method to the Decimal128 class
SERVER-56416 mongod --version returns with extraneous log line on M1 laptops
SERVER-56919 Add validation for memberIndex to reconfigToPSASet() shell helper
SERVER-57284 Wait for config commitment in reconfig_for_psa_set_shell.js
SERVER-57605 Expose Decimal128 equality comparison helper to shell
SERVER-57938 Skip polygon validation for stored GeoJSON when query has $geoIntersect and a 2dsphere index
SERVER-58047 $toHashedIndexKey expression doesn't add any dependencies
SERVER-58104 config.system.sessions collection can end up with invalid chunks if it is dropped and re-sharded with a shard key other than _id
SERVER-58122 Replace searching logs for invariant failure with failpoint usage in resync_majority_member.js
SERVER-58139 Avoid leaking state from NetworkInterfaceTest::CancelLocally
SERVER-58148 mirrored_reads.js assertion does not consider mirrored read failure
SERVER-58183 _applyPrepareTransaction does not ensure prepareConflictBehavior is kIgnoreConflictAcceptWrites on retry attempts
SERVER-58203 improve $unionWith stage
SERVER-58583 Query analysis for mongocryptd does not handle expressive projections in find
SERVER-58777 Inserts and updates disagree on whether an empty subdocument is a level of nesting
SERVER-58780 [v4.4] Ensure that _shouldSetStableTimestamp gets restored to true if replSetInitiate fails
SERVER-59010 Fix SSL off build, OCSPManager shouldn't be used when ssl = off
SERVER-59074 Do not acquire storage tickets just to set/wait on oplog visibility
SERVER-59120 Create unit tests for commitChunksMerge
SERVER-59143 hard fail if "--ninja" tool option is used with ninja module in place
SERVER-59190 IndexAccessMethod can be destructed during index build bulk load yield
SERVER-59294 Check action type for oidReset
SERVER-59299 Improve $match stage
SERVER-59425 Ninja fails to install archive targets locally
SERVER-59456 Start the LDAPReaper threadpool
SERVER-59476 validate_commit_message does not allow wiredtiger imports to be reverted
SERVER-59651 replsettest runCommandWithRetry should handle slow configs
SERVER-59725 Remove push task from extra RHEL 6.2 variants
SERVER-59804 Using a separate branch for YCSB in system_perf.yml
SERVER-59866 Stop FCV from waiting for majority when currentCommittedSnapshot is dropped
SERVER-59867 Split horizon mappings in ReplSetConfig/MemberConfig should be serialized deterministically
SERVER-59876 Large delays in returning from libcrypto.so while establishing egress connections
SERVER-60025 queue document crashes the server due to producing invalid runtime object
SERVER-60062 Fix duplicate uuid and server description deep copy found in topology description clone
SERVER-60085 Cap number of fallback test suites at number of tests in suite
SERVER-60290 Update Windows external auth test distro
SERVER-60299 Backport PCRE bugfix for Bugzilla #2613
SERVER-60406 $searchMeta fails on unsharded collection in sharded cluster when there are no search results
WT-5270 Create wtperf script for evergreen
WT-6193 Re-enable VLCS testing in format-test
WT-6669 Enable VLCS coverage and checkpoint tests in evergreen
WT-6900 Write "schema" subpage for Architecture Guide
WT-6903 Write "dhandle/btree" subpage for Architecture Guide
WT-6907 Write "snapshots" subpage for Architecture Guide
WT-6909 Eviction architecture guide
WT-6913 file system and os interface architecture guide
WT-7169 Commit ts should not be lesser than the last durable ts in test_timestamp22.py
WT-7294 Re-enable VLCS evergreen endianness tests
WT-7392 Added evicted flag to dhandle for use by session sweep
WT-7601 Fix typo in operation tracking documentation
WT-7695 Dump entire tree when key out-of-order found in __cursor_key_order_check_row
WT-7745 Add macro to identify uris for btree objects
WT-7757 Skip obsolete leaf pages without having to read them
WT-7844 Add tiered_abort stress test for tiered storage.
WT-7902 Retry the alter command after a system wide checkpoint
WT-7914 Update the documentation only when required
WT-7942 Release timestamp lock in test/format when all_durable timestamp is not found
WT-7949 Change local store cache and bucket directories to be relative to WT_HOME
WT-7957 Tiered storage should look in local system for objects
WT-7959 Skipped_pages is less than expected_pages_skipped in test_cursor17
WT-7980 Create interface to "log:" cursor which switches log files before returning them
WT-7987 Create Unit Test to check compact does not rewrite overflow items
WT-7989 Compact quits when running at the same time as a system checkpoint
WT-7992 Provide API to return the last key in a table regardless of visibility
WT-7993 If gathering handles and not in aggressive eviction mode, have eviction sleep to let checkpoint grab a contentious spinlock.
WT-8001 Fix Inconsistent API behaviour when setting global oldest and stable timestamps
WT-8007 Update script to correctly generate new test for the CPP test suite framework
WT-8011 Add format support for randomly choosing RS or VLCS
WT-8017 Re-enable VLCS format stress testing in evergreen.
WT-8019 VLCS snapshot-isolation search mismatch
WT-8022 Verify WT_CURSOR.modify return values in format test program
WT-8023 Use global transaction information to assess if a session has active transaction
WT-8024 Add link text to cross-references in Arch Guide
WT-8034 Use the PR branch when docs are compiled in PR testing
WT-8035 Handle prefix enabled lexicographical comparisons for string key formats
WT-8036 Added connection panic flag in two assert statements in wt_evict_thread_run and _wt_evict_thread_stop.
WT-8039 Add a new flag for API check instead of clearing prepared flag which may incorrectly force a roll back
WT-8041 Rollback to stable unpacks values repeatedly
WT-8042 Create an evergreen job to run test/checkpoint variation
WT-8043 Tidy the "ripcip" argument into the visibility code
WT-8044 Prefix enabled search near only returns matching keys
WT-8048 Remove split_8 timing stress configuration
WT-8055 Fix issue when compact quits when running at the same time as a checkpoint
WT-8057 Add a test to verify that changing compact is not resulting in data loss
WT-8059 Add a check in salvage when no overflow items are found
WT-8068 Improve __rollback_row_modify control flow
WT-8069 Coverity analysis defect 120706: Redundant test
WT-8070 Remove discrepancy between prefix_key and prefix_search
WT-8075 Coverity analysis defect 120712: 'Constant' variable guards dead code
WT-8077 Mark the page dirty once the prepared updates are resolved
WT-8078 Implement tiered storage local retention caching
WT-8079 Add breakpoint to verify error macros, clean up API processing
WT-8081 Fix tiered hook functions to provide default for config string
WT-8086 Create cpp test for prefix search near entries
WT-8092 Prefix early exit when keys are present in the insert list
WT-8094 Fix use after free in csv extractor
WT-8101 Enable diagnostic mode for the CPP tests in evergreen
WT-8103 Skip a dhandle if it isn't a btree
WT-8104 Fix memory leaks noted by ASAN
WT-8108 Use temporary files and rename in local store
WT-8112 Skip null check, per coverity
WT-8113 Remove dead code, per coverity
WT-8115 Define macros only when necessary in cpp files
WT-8119 Add targeted compact testing to the existing testing framework
WT-8121 Create a long running stress test which inserts a large amount of data over a long period
WT-8125 Update hs_cleanup cppsuite test to use the new thread_context logic
WT-8126 Mark btree as dirty only if not newly created when instantiating a deleted row-store leaf page
WT-8146 Stop the tracking component when a CPP test ends
WT-8148 Fix comment typo in util_verify.c
WT-8161 Reduce verbosity of CMake Evergreen smoke
WT-8162 Refactor uses of SMOKE arg in 'define_c_test' helper
WT-8164 Disable rollback_to_stable10 python test on Windows
WT-8171 Implement a C style test in the CPP testing framework
WT-8193 Wrong corner case in VLCS rollback-to-stable

4.4.9 Changelog

Security

SERVER-57716 Partial certificate chain in PEM causes validation failure in OCSP

Replication

SERVER-34938 Secondary slowdown or hang due to content pinned in cache by single oplog batch
SERVER-36263 Bypassing operation validation in applyOps should require special privilege
SERVER-44316 Log message in InitialSyncer for setting begin applying timestamp is incorrect
SERVER-59212 Make sure node stepped down before waiting for catchup takeover in catchup_takeover_with_higher_config.js
SERVER-59478 Move serverStatus command before taking RSTL in catchup_takeover_with_higher_config.js

Query

SERVER-57178 add regression test for multikey compound index

Storage

SERVER-56877 insert operations may fail to set index to multikey after aborted multikey catalog update

Build and Packaging

WT-7830 Migrate the python setup scripts to use cmake

Internals

SERVER-49435 uassert in NetworkInterfaceTL::setTimer can cause server to crash if connection future not immediately ready
SERVER-53069 Disable death tests on address and memory sanitizer variants
SERVER-53479 Wait for mirrored operations in mirror_reads.js
SERVER-53849 Move away from getLog in timestamped_reads_wait_for_prepare_oplog_visibility.js
SERVER-55589 replSetMaintenance command does not take the RSTL
SERVER-56580 Promote build-tools=next to stable
SERVER-57262 Allow nodes to vote for candidates with higher config
SERVER-57268 add multikey query to validate_multikey_restart.js
SERVER-57360 Log additional debug info for the "invariant (_requests.empty());" in ~LockerImpl
SERVER-57630 Enable SSL_OP_NO_RENEGOTIATION on Ubuntu 18.04 when running against OpenSSL 1.1.1
SERVER-57752 Test terminating mongod during a clean shutdown checkpoint
SERVER-57893 Make rsm_horizon_change.js resilient to network failures
SERVER-58051 Mongod.exe does not release file handles on rotated logs on windows 10
SERVER-58169 Log timestamps info on hitting invariants around stable timestamp calculation
SERVER-58184 Checkpoint thread causes assertions when raced with recovering prepared transactions on startup
SERVER-58280 initial sync hangs on hiding dropped index when index builds are active
SERVER-58402 Increase timeout of shutdown command in shutdown_primary.js
SERVER-58581 Add SEARCH_META variable that populates from mongot
SERVER-58582 Create $documents stage and implement collectionless unionWith
SERVER-58588 Implement $searchMeta stage
SERVER-58594 ReplicationCoordinatorImpl::handleHeartbeatResponse_forTest doesn't use _mutex when reading _rsConfig
SERVER-58676 Ban pipelines that set SEARCH_META variable in sharded collections
SERVER-58813 Robustify jstests/multiversion/hashed_index_bad_keys_cleanup.js
SERVER-58886 Allow 'vars' result to be returned from a sharded search query but fail on SEARCH_META access
SERVER-59135 Make mongocryptd targets in MSIs depend on libsasl2
SERVER-59188 Coverity analysis defect 120391: Uninitialized scalar field
SERVER-59197 Delete fam image entries when the corresponding session documents are deleted
SERVER-59242 update to snmp 5.9.1
SERVER-59262 Remove burn_in_tests tasks from storeFindAndModifyImagesInSideCollection build variants
SERVER-59414 Retry curator setup in powercycle on older branches
SERVER-59469 Add missing space in burn_in_tags list of variants
SERVER-59573 Add setParameter which can be used to restore inactive cursor timeout in sessions
WT-6755 Documentation: populate developer glossary
WT-6902 Metadata subpage for Architecture Guide
WT-6910 Write "history store" subpage for Architecture Guide
WT-6911 Write "block manager" subpage for Architecture Guide
WT-6914 Write "database files" subpage for Architecture Guide
WT-6915 Write "log files" subpage for Architecture Guide
WT-7006 Write Connection subpage for Architecture Guide
WT-7007 Backup architecture guide page
WT-7198 Fix test_backup15 failure with backup mismatch
WT-7352 Fix test_hs01 conflict between concurrent operations in cursor modify
WT-7363 Add support for dumping history store output in hex format
WT-7521 Remove excess ckplist invalidations
WT-7592 Remove log_flush("sync=background") support
WT-7599 Update the CONFIG file based on the release that is about to run for compatibility tests
WT-7663 Change local store extension to allow only readonly FS operations
WT-7673 Investigate and fix manydbs test failure on Windows
WT-7703 Fix timeout in test_checkpoint_snapshot04
WT-7718 Rename 'build_cmake'
WT-7732 Add a timeout configuration for flush_tier
WT-7758 Force evict a page when the update chain is too long
WT-7787 Don't read pages for checkpoint cleanup when the cache is in aggressive mode
WT-7789 Change tiered python tests to fail without extension library
WT-7817 Make tiered storage address cookies backward compatible
WT-7838 Ability for ordered timestamp assertion to do more than a log message
WT-7842 Remove explicit ulimit -n call in many-collection-test
WT-7860 Improve code coverage reporting
WT-7864 Add support to run.py for running lists/ranges of scenarios in a test
WT-7865 Disable timeout assert while waiting for eviction to quiesce prior to RTS and test
WT-7866 Update cache_hs_insert limits in cppsuite-hs-cleanup-stress
WT-7870 Fix measurement of cyclomatic code complexity
WT-7871 Remove comment that is no longer true
WT-7874 Remove two other stale comments
WT-7876 Update rollback to stable test to use correct boolean values and update statistic checking logic
WT-7880 Fix history store record issue when the update following the prepared update is in history store
WT-7882 Fix discrepancy for wiredtiger.in on mongodb-4.4 branch
WT-7883 Remove incorrect wt_free statement
WT-7889 Find/replace existing uses of WT with WiredTiger in reference guide
WT-7890 Fix CMake syntax error in config_lib
WT-7891 Remove doc typos
WT-7893 Remove ignored message from wiredtiger_open in test_encrypt08
WT-7895 Fix arch-data-file.dox documentation build failure
WT-7897 Enable verbose logging for test_backup15 to aid debugging
WT-7900 Fix insertion of new records in test format for column-store
WT-7901 test suite cleanup
WT-7905 Fix incorrect builtin behaviour for builds in CMake
WT-7907 Add dependencies to swig module definition in CMake build
WT-7908 Make variable-length column store work again with the static tests
WT-7909 Create a new method to check for running user transactions before starting rollback-to-stable operation
WT-7918 Support setting a prepare timestamp at current read timestamp
WT-7928 VLCS checkpoint and additional test suite improvements
WT-7931 Evicting modifies using the evict cursor in test_multiple_older_readers_with_multiple_mixed_mode() to ensure that eviction happens.
WT-7934 Upload perf results from many-collection test to Altas
WT-7935 Add arm64 implementation of rdtsc equivalent instruction
WT-7936 Update the format.sh script to run recovery tests
WT-7937 Fix s_docs to use sh, not bash syntax
WT-7938 Fix rollback-to-stable memory leak on error
WT-7940 Update mongod path for many-coll test
WT-7941 Add an Evergreen task to test abort/recovery using test/format
WT-7943 Do not assert timestamps when rolling back a prepared transactions
WT-7945 Move rollback handling to the operation layer in the cppsuite.
WT-7947 Allow CMake to take in a specific Python version
WT-7952 Minor docs build fixes
WT-7953 Teach s_string to not look inside getopt option lists.
WT-7955 Copy format.sh and CONFIG.stress to the test/format build directory with CMake
WT-7956 RTS to skip deleted or stable RLE cells
WT-7961 Sometimes lag oldest timestamp in timestamp_abort.
WT-7964 Fix rollback to stable incorrectly not rolling back updates at snap_max
WT-7965 Update connection base write generation number at the end of recovery checkpoint
WT-7968 In timestamp_abort skip setting timestamps when all_durable moves backwards
WT-7970 Set the stable timestamp before starting the checkpointer and clock threads
WT-7974 More column-store fixes and tests
WT-7984 Fix a bug that could cause a checkpoint to omit a page of data
WT-7994 Add docs compile task to PR testing
WT-7995 Fix the global visibility that it cannot go beyond checkpoint visibility
WT-7996 More column-store C testing
WT-7998 Minor fixes on Cache subpage of Architecture Guide
WT-7999 Fix the assert to handle an update in the middle with max stop timestamp
WT-8005 Fix a prepare commit bug that could leave the history store entry unresolved
WT-8006 sync/checkpoint cleanup code isn't appropriate for VLCS

4.4.8 Changelog

Security

SERVER-57727 Race conditions in x509_invalid.js

Sharding

SERVER-6036 Disable cursor timeout for cursors that belong to a session
SERVER-52906 moveChunk after failed migration that rolled back cloning indexes can hang indefinitely due to missing shard key index
SERVER-57850 Increase timeout when waiting for migration on authCommands.js

Replication

SERVER-37904 Allow a node to override the cluster chaining (enabled/disabled) setting
SERVER-58164 When group insert fails, the error type is not printed in logs.
SERVER-58258 Wait for initial sync to clear state before asserting 'replSetGetStatus' reply has no 'initialSync' field

Query

SERVER-58127 Fix benchRun() memory leak for parsing benchRun() args under exception

Storage

SERVER-49714 Oplog visibility thread may read from unowned memory when multiple oplog collections present
SERVER-50287 drop_index.js fails when run in passthrough suite with stepdown

Build and Packaging

SERVER-54729 MongoDB Enterprise Debian/Ubuntu packages should depend on libsasl2-modules and libsasl2-modules-gssapi-mit

Internals

SERVER-56424 improve index build invariant message for system error ENOSPC "28: No space left on device"
SERVER-56620 Nodes should explicitly clear arbiter durableOpTimeAndWalltime
SERVER-57642 Invariant Failure on src/mongo/db/query/plan_yield_policy.cpp 75 | Aborting
SERVER-57650 Make MigrationChunkClonerSource interruptible when waiting response to recipient commands
SERVER-57798 Direct user to MongoDB Compass download page when failing to install MongoDB Compass due to a connection issue using ./install_compass
SERVER-57983 Integer overflow for $range in Classic Engine
SERVER-58187 Improve Connection Reaper and MongoLDAP performance
SERVER-58191 [Migrate Protocol] Allow delete_during_migrate.js to tolerate chunk migration failures due to timeout in catchup phase in slow variants.
SERVER-58283 Add a new versioning file to set MONGO_VERSION and MONGO_GIT_HASH
SERVER-58936 Unique index constraints may not be enforced
WT-6280 Fail eviction if out of order handling races with checkpoint
WT-6729 Quiesce eviction prior running rollback to stable's active transaction check
WT-6782 test_prepare_hs02 WT_ROLLBACK failure: conflict between concurrent operations
WT-7231 Add CMake build and tests into Evergreen
WT-7279 Allow multiple terminate calls for storage source extension
WT-7343 Write a script that executes many-collection-test.py
WT-7383 Add framework for new hs_cleanup test and refactor workload generator and database operation
WT-7473 Resolve "TODO: tiered" comments in code
WT-7507 Update salvage for a history store and timestamp world
WT-7520 Add start and stop values to automatic flag generation code
WT-7524 Refactor functions to obtain checkpoint list; Clear delete on skipping checkpoints
WT-7539 Add a configuration option that allows the user to specify debug modes.
WT-7543 Pass in the correct test name when constructing the default config path
WT-7553 Loosen the restrictions around evicting fast-truncate pages to avoid cache-stuck failures
WT-7556 Fix test_rollback_to_stable10 failure cache_hs_ondisk is 0
WT-7583 Coverity analysis defect 114074: Logically dead code (rework)
WT-7585 Fix cyclomatic-complexity test failure
WT-7589 Fix reopening connection after a flush_tier in tiered tests
WT-7603 Sort statistics to fix JSON output
WT-7605 Drop support for million-collection-test
WT-7609 Report on time taken to start and shutdown the database in many-coll-test
WT-7616 Create a pass or fail test based on many collection workgen workload
WT-7619 Add a new optimization to skip pages in cursor traversal when all entries on the page are deleted
WT-7626 We only ensure update restore eviction happened in test debug mode09
WT-7628 Return an error message when supplied invalid command line args in the test framework
WT-7

4.4 Changelog.css-134mg1q{-webkit-align-self:center;-ms-flex-item-align:center;align-self:center;padding:0 10px;visibility:hidden;}.css-6vrlzm{border-radius:0!important;display:initial!important;margin:initial!important;}.css-1l4s55v{margin-top:-175px;position:absolute;padding-bottom:2px;}

4.4.14 Changelog

Sharding

TTL

Internals

4.4.13 Changelog

Sharding

Replication

Query

Storage

Internals

4.4.12 Changelog

Sharding

Internals

4.4.11 Changelog

Platform Support

Enterprise Edition

Community Edition

Sharding

Replication

Query

Aggregation

Storage

Operations

Internals

4.4.10 Changelog

Security

Sharding

Replication

Query

Aggregation

Operations

Internals

4.4.9 Changelog

Security

Replication

Query

Storage

Build and Packaging

Internals

4.4.8 Changelog

Security

Sharding

Replication

Query

Storage

Build and Packaging

Internals

4.4 Changelog