4.0 Changelog

4.0.28 Changelog

Security

SERVER-57727 Race conditions in x509_invalid.js

Sharding

SERVER-53335 Queries, updates, and deletes with non-"simple" collations may miss documents when using hashed sharding
SERVER-54064 Sessions on arbiters accumulate and cannot be cleared out
SERVER-55648 Mongos doesn't return top-level batch-write error in case of shutdown
SERVER-59929 Unexpected slower update/insert operation base of splitchunk and moveChunk
SERVER-60654 Backport the autoSplitVector logic to v4.0
SERVER-62065 Upgrade path from 3.6 to 4.0 can leave chunk entries without history on the shards

Replication

SERVER-56096 Invariant failure in ReplicationRecoveryImpl::recoverFromOplog

Aggregation

SERVER-44484 Changestream with updateLookup uasserts on updates from before collection was sharded
SERVER-59613 $range expression should return an error if it exceeds memory limit

Storage

SERVER-45953 Exempt oplog readers from acquiring read tickets

Internals

SERVER-40486 Remove Test Lifecycle code
SERVER-53726 Platform Support: Remove RHEL6 zSeries
SERVER-53728 Platform Support: Remove SLES12 zSeries
SERVER-56326 Add a round() method to the Decimal128 class
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-58192 Use more unique_ptrs in QueryPlannerAnalysis::analyzeSort()
SERVER-59120 Create unit tests for commitChunksMerge
SERVER-59191 SPIKE: git.get_project fails to clone
SERVER-59725 Remove push task from extra RHEL 6.2 variants
SERVER-59804 Using a separate branch for YCSB in system_perf.yml
SERVER-59874 Delete stats.js on the 4.0 branch.
SERVER-59887 Reduce the change_stream_shard_failover.js test flakiness
SERVER-60290 Update Windows external auth test distribution
SERVER-60344 Action plan on lagging setFCV replicas breaking tests
SERVER-60588 $multiply incorrectly throws an error in some cases in the classic engine
SERVER-60670 Use a separate branch instead of a specific commit for TPCC
SERVER-60671 Remove dagger
SERVER-60934 Increase RSM verbosity in the test change_stream_shard_failover.js
SERVER-60961 Add exclude tags to old branches not generating multiversion_exclude_tags.yml
SERVER-60971 Remove calls to BF suggestion service
SERVER-61152 Fix lint on 4.0 branch
SERVER-61530 Provide large distro option for split tasks on SSL Amazon Linux on 4.0
SERVER-61559 Remove jepsen_register_linearizableRead from 4.0 branch.
SERVER-61791 Pin pymongo
SERVER-62164 Remove several obsoleted build variants across all stable branches
WT-6568 Fix split generation use
WT-6926 Update WiredTiger source code to include 2021 copyright notices
WT-7065 Add check for WT_DHANDLE_DEAD to assertion
WT-7135 Additional checks to detect when writing corrupted metadata
WT-7437 Upgrade documentation to doxygen 1.8.17
WT-7871 Remove comment that is no longer true
WT-7874 Remove two other stale comments

4.0.27 Changelog

Sharding

SERVER-40170 Increase the default timeout for unit-tests which schedule work through NetworkTestEnv::launchAsync

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

Query

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

Storage

SERVER-40712 Clarify the behaviour of db.dropDatabase and the dropDatabase command

Build and Packaging

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

Internals

SERVER-53726 Platform Support: Remove RHEL6 zSeries
SERVER-53728 Platform Support: Remove SLES12 zSeries
SERVER-55649 Sharding messages being logged for non-sharded clusters
SERVER-56516 Fix undefined behaviour in parsing code for $slice projectional operator
SERVER-57642 Invariant Failure on src/mongo/db/query/plan_yield_policy.cpp 75 | Aborting
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-58283 Add a new versioning file to set MONGO_VERSION and MONGO_GIT_HASH
SERVER-58402 Increase timeout of shutdown command in shutdown_primary.js
SERVER-59055 Pin oauthlib == 3.1.0 in 4.0 branch
SERVER-59074 Do not acquire storage tickets just to set/wait on oplog visibility
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-59504 Fix formatting in network_test_env.h on v4.0

4.0.26 Changelog

Security

SERVER-56240 Turn on checkpointing for the keystore Data Store

Sharding

SERVER-48648 Return updated ShardVersion in _configsvrCommitChunkMerge to avoid blind metadata refresh
SERVER-48653 Return updated ShardVersion in _configsvrCommitChunkSplit to avoid blind metadata refresh
SERVER-56654 Do not use the collection distributed lock for chunk splits
SERVER-56779 Do not use the collection distributed lock for chunk merges
SERVER-56786 There are three routing info refreshes and two chunk scans on the mergeChunks path
SERVER-58109 The new '_configsvrMergeChunks' path is more expensive than the old one

Replication

SERVER-44316 Log message in InitialSyncer for setting begin applying timestamp is incorrect
SERVER-55465 Fix Invariant upon failed request for a vote from the current primary in the election dry-run of catchup takeover
SERVER-56054 Change minThreads value for replication writer thread pool to 0

Query

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

Aggregation

SERVER-41741 Improve robustness of change_streams_shell_helper_resume_token.js

Build and Packaging

SERVER-50568 Platform Support: Remove Ubuntu18.04 zSeries from 5.0
SERVER-54729 MongoDB Enterprise Debian/Ubuntu packages should depend on libsasl2-modules and libsasl2-modules-gssapi-mit

Internals

SERVER-40590 Delete KeyedExecutor
SERVER-53643 Startup can see old version of featureCompatibilityVersion document
SERVER-53726 Platform Support: Remove RHEL6 zSeries
SERVER-53728 Platform Support: Remove SLES12 zSeries
SERVER-55119 Create startup warning indicating that X.509 certificates without SANs are deprecated
SERVER-55649 Sharding messages being logged for non-sharded clusters
SERVER-56307 The chunk migration "convergence algorithm" is very primitive
SERVER-56452 Self anchor in PooledLDAPConnection::setup's callback
SERVER-56501 Add op counters for legacy op codes (OP_QUERY, OP_INSERT, etc.)
SERVER-56516 Fix undefined behaviour in parsing code for $slice projectional operator
SERVER-57053 Rewriting $nor with a $text predicate to $not is invalid
SERVER-57057 Reduce routing info refreshes on the mergeChunks path
SERVER-57064 Log create index and dropIndex(es) on mongos
SERVER-57145 Invariant failure at OCSPManager::requestStatus
SERVER-57157 assert serverStatus command works in getBinVersion() jstest helper
SERVER-57275 Update kmip_server.py to be more verbose
SERVER-57328 Make ReplsetTest.upgradeSet() tolerant of reelections
SERVER-57330 Update perf yaml configs for perf and sys-perf to use perf.send
SERVER-57454 Chunk donor propagates NotMaster error from recipient back to MigrationManager making it to believe donor is not primary
SERVER-57497 store_retryable_find_and_modify_images_in_side_collection.js should account for a later clustertime in retried findAndModify responses
SERVER-57564 Increase system timeout duration to >2 hours to allow fio to copy over all files
SERVER-57691 [4.0 only] Return early in TxnResources if not in WUOW
SERVER-57798 Direct user to MongoDB Compass download page when failing to install MongoDB Compass due to a connection issue using ./install_compass
SERVER-57897 Add readPrefMode option to benchRun find/findOne ops
SERVER-57954 Update TPC-C version in sys-perf.yml
SERVER-58118 Spammy logging when RSM is refreshing all hosts
SERVER-58191 [Migrate Protocol] Allow delete_during_migrate.js to tolerate chunk migration failures due to timeout in catchup phase in slow variants.
SERVER-58248 Fix error code when checking if FeatureCompatibilityVersion is majority-committed
SERVER-58283 Add a new versioning file to set MONGO_VERSION and MONGO_GIT_HASH
SERVER-58313 Fix package test failure caused by SERVER-55460 backport to v4.2 and v4.0

4.0.25 Changelog

Sharding

SERVER-40293 change_stream.js removal test should do an unordered check on the change stream
SERVER-47699 Change yield type used by range deleter from YIELD_MANUAL to YIELD_AUTO
SERVER-56515 Chunk merge doesn't consider the incrementChunkMajorVersionOnChunkSplits parameter
SERVER-57009 Additional debugging information in case of crash during FCV change
SERVER-57055 delete_during_migrate.js is consistently failing in test suites with Code Coverage enabled
SERVER-57102 Fixing invariants on ShardServerCatalogCacheLoader to consider different terms

Write Operations

SERVER-38909 Permit empty update modifiers, treating as a no-op rather than an error

Build and Packaging

SERVER-54057 Mongodb-org-server el8 package has dependency on python2
SERVER-54386 mongodb 3.6.22 install fails if systemctl daemon is not running
SERVER-55460 Fix RPM packaging and testing for SLES 12

Internals

SERVER-37125 Powercycle should ignore a process reference if it no longer exists
SERVER-38811 TCP_KEEPINTVL should be 1 second
SERVER-43617 Add metrics on the mongos to indicate the number of shards targeted for the commands (find, aggregate, etc)
SERVER-45153 Ignore metrics temp files in FTDCFileManager
SERVER-47509 resmoke accepts multiple "mongodSetParameters" options but only uses the last one
SERVER-48636 Increase assertEventDoesNotWakeCursor getMore timeout in only_wake_getmore_for_relevant_changes.js
SERVER-48890 allow $addFields with empty document and have it be a no-op
SERVER-51465 Update package tests after compass installer update
SERVER-52610 Verify installation prefix is added to correct location in the RPM
SERVER-52833 Capped collections can contain too many documents after replication recovery
SERVER-53726 Platform Support: Remove RHEL6 zSeries
SERVER-53728 Platform Support: Remove SLES12 zSeries
SERVER-55019 install_compass does not run on all supported platforms
SERVER-56164 All performance projects use the master DSI branch
SERVER-56217 PoolForHost::_maxInUse is init to <int>::max and cannot be changed, and when connections are maxed DBConnectionPool::get() always throws
SERVER-56361 Better FTDC diagnostics of RSM, including server-side isMaster handling
SERVER-56371 Upgrade timelib to 2021.06
SERVER-56373 [RRFaM] When writing FaM images to txn table, write oplog entries with needsRetryImage
SERVER-56374 [RRFaM] Have update path write to config.image_collection
SERVER-56375 [RRFaM] Have delete path write to config.transactions
SERVER-56376 [RRFaM] Add jstest that exercises both retryable FaM behaviors
SERVER-56489 New pass-through test with random hello server-side delays
SERVER-56563 [RRFaM] Forge noop image oplog entries for chunk migration
SERVER-56668 Create config.image_collection when setting FCV to 4.0 on primary
SERVER-56713 [RRFaM] Avoid creating images while in initial sync
SERVER-56795 Changes from SERVER-53274 were unintentionally reverted
SERVER-56819 $indexOfCP returns incorrect result when searching for empty string inside empty string with non-zero start index (classic execution engine only)
SERVER-56854 Provide the ability for RSM requests to timeout and mark the server as failed
SERVER-57015 [RRFaM] Writing to the image collection must be in an UnreplicatedWriteBlock
SERVER-57044 [v4.0] Add jstest that changing the FCV will disable new retryable findAndModify format even if storeFindAndModifyImagesInSideCollection=true
SERVER-57172 Do json.send before DSI post_run
SERVER-57173 Write invalidated image for retryable findAndModify when secondaries apply operations earlier than minValid
SERVER-57356 Better logging around failed chunk migration

4.0.24 Changelog

Replication

SERVER-49187 Make ReplSetTest .stepUp() robust to election failures.
SERVER-50049 assert.soonNoExcept() should not access TestData.traceExceptions for non-resmoke tests.
SERVER-51163 Mark nodes returning InvalidReplicaSetConfig in heartbeats as down
SERVER-53666 curSecondary in rollback test fixture not guaranteed to be in SECONDARY state after restart
SERVER-54708 Rollback test fixture only ensures sync source's lastApplied > rollback node's lastApplied if both emrc=false and inMemory

Query

SERVER-36926 Undefined behavior from signed overflow in cursor manager, can result in mongos invariant failure
SERVER-50073 Error message when creating a mixed hashed/not hashed index does not state the problem
SERVER-54710 Large number of $or clauses can create profiling entry exceeding max BSON size, causing the query to fail when it should not

Operations

SERVER-54770 Add /proc/meminfo MemAvailable to FTDC

Build and Packaging

SERVER-54031 errorcodes.py doesn't check embedded C++ code in Python scripts
SERVER-54255 Update RHEL 7 AMI for package testing

Internals

SERVER-5722 Support a 'sort' field in ops array for JS Benchmarking Harness
SERVER-35649 Nodes removed due to isSelf failure should re-attempt to find themselves
SERVER-43847 Make ReplSetTest's stepUp function resilient to slow machines
SERVER-44132 DataBuilder move assignment computes size incorrectly
SERVER-45836 Provide more LDAP details (like server IP) at default log level
SERVER-47030 Fix date_time_support code to not produce exceptions
SERVER-48910 Do not consider keystore.metadata as a keystore on <= 4.0
SERVER-52953 $geoNear does not always match coordinate given to 'near' when maxDistance is set to 0
SERVER-53566 Investigate and reproduce "opCtx != nullptr && _opCtx == nullptr" invariant
SERVER-53612 StepDown hangs until timeout if all nodes are caught up but none is immediately electable
SERVER-53831 Force SpiderMonkey to garbage collect in ReplSetTest.checkOplogs
SERVER-53992 Remove calls to detect-outliers from performance tasks
SERVER-54136 Make the authenticate command respect enforceUserClusterSeparation
SERVER-54139 Remove CURL share support from HTTP curl client
SERVER-55189 Call awaitReplication() before returning from syncFrom() in rslib.js
SERVER-55395 4.0.23 does not build with gcc 10
WT-4296 Add aggressive mode to sweep server
WT-4614 Trigger sweep immediately to reclaim space after a table drop
WT-6309 Add support for start/stop arguments to wt printlog command
WT-6430 Move WT_CONN_SERVER flags into their own field
WT-7026 Atomically read and set ref->addr in case of race
WT-7028 Sweep thread shouldn't lock during checkpoint gathering handles
WT-7104 Redact user data from printlog output

4.0.23 Changelog

Sharding

SERVER-50305 ARS::next() does not respect OperationContext deadline
SERVER-53274 The force-write of the history field to all chunks on FCV upgrade from 3.6 to 4.0 is unnecessary

Replication

SERVER-52744 rollback node's lastApplied > sync source's lastApplied in rollback_after_enabling_majority_reads.js
SERVER-53345 Excuse arbiter_new_hostname.js from multiversion tests
SERVER-53459 rollback_all_op_types.js should ensure sync source's lastApplied > rollback node's lastApplied
SERVER-53609 lastCommittedTransaction section causes frequent schema changes that limit FTDC retention

Query

SERVER-40361 Reduce memory footprint of plan cache entries
SERVER-47869 Add diagnostic logging to ClusterCursorManager

Storage

SERVER-46876 During the eviction pressure, we should quit the compact operation instead of crashing the process
SERVER-52950 recoverOplogAsStandalone mode must not start oplog truncater thread

Operations

SERVER-54074 [v4.0] Log start and end of changes to table log settings

Internals

SERVER-43904 When stepping down, step up doesn't filter out frozen nodes
SERVER-46686 Explain does not respect maxTimeMS
SERVER-46740 establishCursors() must always drain the AsyncRequestsSender::_baton
SERVER-52879 Periodic operation latency spikes every 5 minutes due to closing idle cached WT sessions
SERVER-53234 jstests/core/profile2.js fails when background operations are run against test database
SERVER-54091 Update assertion messages for dbhash check run by resmoke.py
SERVER-54134 Ignore newer mongo versions on older branches of setup_multiversion_mongodb.py

4.0.22 Changelog

Sharding

SERVER-36739 Use the mongos_manual_intervention_action hook in concurrency stepdown suites
SERVER-41192 Add a metric for the size of the SessionCatalog under logicalSessionRecordCache
SERVER-42632 Disable pinger threads that reach out to config server to make integration tests pass
SERVER-46393 Always check client last operation time when computing operationTime to append to the response
SERVER-48679 flushRoutingTableCacheUpdates should block on critical section with kWrite, not kRead
SERVER-51808 invariant failure: readConcern level != Available
SERVER-51885 Blacklist balancing_sessions_collection.js from sharding_csrs_continuous_config_stepdown
SERVER-52955 KeysCollectionClientDirect should check if majority read concern is supported by storage engine

Replication

SERVER-33747 Arbiter tries to start data replication if cannot find itself in config after restart
SERVER-50116 Forbid oplog writes when replication is enabled
SERVER-51262 Rename skipCheckingForNotMasterInCommandDispatch to skipCheckingForHelloInCommandDispatch
SERVER-51598 Add new test suites that test transaction expiration logic
SERVER-51887 "InvalidNamespace" in oplog tests on 4.0 branch
SERVER-52560 oplog_writes_only_permitted_on_standalone.js must wait for insert to be in stable checkpoint
SERVER-52680 Removed node on startup stuck in STARTUP2 after being re-added into the replica set
SERVER-53026 Secondary cannot restart replication

Query

SERVER-32960 $mod has inconsistent rounding/truncation behavior

Aggregation

SERVER-48523 Unconditionally check the first entry in the oplog when attempting to resume a change stream

Storage

SERVER-51858 Investigate queryable issue on 4.0.20
SERVER-52902 Remove assertion !haveJournalFiles() at dur_journal.cpp:265

Operations

SERVER-46729 Make Windows shell soft-fail for unavailable OCSP responder
SERVER-51757 Collect /proc/vmstat numa_pages_migrated statistics in FTDC

Build and Packaging

SERVER-52891 Run PPC builds less frequently

Internals

SERVER-45624 Pre-split and distribute chunks of sessions collection
SERVER-45992 InMemory engine startupwarnings confusing
SERVER-48742 Log whenever profiler settings are changed via setProfilingLevel
SERVER-49165 endSessions command in Client.Disconnect causes an authorization failure for an unauthed connection on a host that requires authentication
SERVER-50123 Record number of physical cores on all platforms
SERVER-50267 Set output limit for 'rawMongoProgramOutput()'
SERVER-50365 Stuck with long-running transactions that can't be timed out
SERVER-50445 Return the value as double when NumberLong subtraction overflows in ExpressionSubtract
SERVER-50605 Add {logMessage: "msg"} test-only command
SERVER-51303 Lookup stage followed by $match on type uses wrong field in matching condition
SERVER-51607 Upgrade Twisted dependency to at least twisted-19.7.0
SERVER-51902 Check if storage engine supports Recover to Stable Timestamp rather than if eMRC=false in sync_tail.cpp
SERVER-52646 Validate and possibly fix edge cases in regex rewrite rules for userToDNMapping
SERVER-52654 new signing keys not generated by the monitoring-keys-for-HMAC thread
SERVER-52806 deb install files assume systemd
SERVER-52969 Disable Powercyle on non-master branches
SERVER-53233 Fix change_streams_update_lookup_shard_metadata_missing.js [4.2, 4.0]
SERVER-53348 Pin PyOpenSSL
WT-6507 Exit cache eviction worker after our operation has timed out
WT-6602 Allow operation timeout ms to be passed to commit and rollback
WT-6666 Start op timer when we configure it in rollback and commit

4.0.21 Changelog

Security

SERVER-45803 mongodecrypt needs a ServiceContext
SERVER-45938 Allow matching O/OU/DC in client x509 cert if clusterMode:keyFile
SERVER-47733 SymmetricEncryptorWindows shouldn't pad when update is called
SERVER-50463 Make PooledLDAPConnection::refresh take self-ownership

Sharding

SERVER-47616 Improve error when logical sessions cannot have more than one user authenticated on a single connection

Replication

SERVER-48518 Rollback via refetch (EMRC = false) can make readers to see the rolled back data even after the rollback node catches up to primary.
SERVER-48928 Allow primary-elect to complete drain mode even if it is stepping down unconditionally
SERVER-49986 Convert isMaster command to hello and add aliases
SERVER-49987 Rename response fields if “hello” is sent on mongod
SERVER-49988 Rename response fields if "hello" is sent on mongos
SERVER-49989 Add db.hello() shell helper
SERVER-49990 Alias setSlaveOk() and getSlaveOk() shell helpers
SERVER-49991 Alias printSlaveReplicationInfo() shell helper
SERVER-50607 Must hold mutex when calling _checkForShutdownAndConvertStatus_inlock
SERVER-50626 Race in read_concern_majority_getmore_secondaries.js
SERVER-50631 [v4.0] Ban rollback_after_disabling_majority_reads.js with --nojournal and MMAPv1
SERVER-50640 listCommands should return "isMaster" alias in addition to "hello" command name
SERVER-50747 Increase no-op interval in change_streams_update_lookup_shard_metadata_missing.js
SERVER-50963 rollback_via_refetch_anomaly.js fails on inMemory storage engine

Query

SERVER-18341 Matcher returns false positives in comparison predicates with MinKey/MaxKey
SERVER-35921 Index scan uses incorrect bounds for MinKey and MaxKey
SERVER-39392 Invariant in PlanStage::dispose always evaluates as true
SERVER-45233 Indexed inequalities to arrays return incorrect results
SERVER-50291 Add query knob to enumerate $or children in a different order
SERVER-51083 Problem with regex index bounds
SERVER-51120 Find queries with SORT_MERGE incorrectly sort the results when the collation is specified

Aggregation

SERVER-40317 $facet execution has no limit on how much memory it can consume

Storage

SERVER-50915 [v4.0] fsyncLock must not take a stable checkpoint when majority read concern is off

Operations

SERVER-26726 Check number of arguments for createIndex() and throw error if more than two arguments

Build and Packaging

SERVER-46342 DEB installs of MDB do not issue systemctl daemon-reload on install
SERVER-47138 MSI installer produces incorrect config file
SERVER-50078 Compile bypass applied when it should not have

Internals

SERVER-15902 use signal handling stack via sigaltstack to improve behavior on stack overflow
SERVER-41872 PlanEnumerator AndAssignment::choices ordering not stable and is relevant to set of plans generated
SERVER-43233 Add ability to request only specific attribute(s) for the LDAP groups
SERVER-43973 jsTestName() should return a unique name for each thread in the parallel suite
SERVER-45202 Improve Command alias infrastructure
SERVER-47883 Newly-elected primaries do not wait for single-phase background index builds to complete before accepting writes
SERVER-48410 Signed integer overflow fix for datetime library
SERVER-48709 signing key generator thread on config server not waken up as expected
SERVER-49054 Server MSI should install Compass instead of Compass Community
SERVER-49352 4.0 does not build with python 3.8
SERVER-49786 Freeze DSI and Genny for non-master perf projects
SERVER-50180 Fix User lifetime management in AuthorizationManager::acquireUserForSessionRefresh
SERVER-50183 Copy _awaitPrimaryAppliedSurpassesRollbackApplied function from RollbackTest to RollbackTestDeluxe
SERVER-50216 Adjust sys-perf frequencies
SERVER-50736 Make OpenSSL explicitly accept SNIs presented in ClientHello
SERVER-50818 Coverity analysis defect 114987: Wrapper object use after free
SERVER-51106 Make the isMaster command a derived class of hello
SERVER-51608 [4.0] backport implicitly_retry_on_background_op_in_progress.js
SERVER-51802 Add requires_majority_read_concern tag to decrypt_tool.js on v4.0
TOOLS-2589 [v4.0] sslAllowInvalidHostnames bypass ssl/tls server certification validation entirely
WT-6421 Avoid parsing metadata checkpoint for clean files
WT-6559 Use the session id from the new session to determine statistics bucket
WT-6598 Add new API allowing changing dhandle hash bucket size

4.0.20 Changelog

Sharding

SERVER-40441 Arbiter nodes log error messages when try to create session collection or check if it exists
SERVER-44115 Exclude jstests/core/autocomplete.js from sharded jscore tests
SERVER-47799 AsyncRequestsSender should update replica set monitor in between retries for InterruptedAtShutdown
SERVER-48491 Add requires_document_locking tag to sessions_collection_reaping.js
SERVER-48674 Check if replication is enabled before checking if the node is an arbiter in LogicalSessionCacheImpl
SERVER-48926 Fix remaining sharding tests that incorrectly set votes to 0 on shard secondaries
SERVER-49233 Introduce a flag to toggle the logic for bumping collection's major version during split

Replication

SERVER-37390 RollbackTestFixture doesn't need to wait for a new primary if it didn't shut down the current primary
SERVER-42004 localhost{1,2,3}.js tests should wait for a primary to be elected before shutting down the test
SERVER-45610 Some reads work while system is RECOVERING
SERVER-46897 REMOVED node may never send heartbeat to fetch newest config
SERVER-47849 Add more logging to shutdownTask
SERVER-48276 ReplSet Free Monitoring URLs inconsistent
SERVER-48967 Prevent replicated writes on empty namespaces on secondaries
SERVER-50039 Timing error in dbadmin.js test

Query

SERVER-47223 geoNear/$geoNear does not apply index hints
SERVER-48993 explodeForSort can produce incorrect query plan
SERVER-49527 recoverFromOplogAsStandalone does not relax index constraints

Storage

SERVER-43097 Improve log messaging when index builds get foregrounded because of startup recovery
SERVER-47694 fix multikey. again
SERVER-48453 Lazily initialize a record store's auto incrementing counter on deletes
SERVER-48695 setAppliedThrough must set orderedCommit=false on the recovery unit
SERVER-49449 index_restart_secondary.js is not compatible with storage engines without support for persistence

Operations

SERVER-44051 getShardDistribution() does not report "Collection XYZ is not sharded" on dropped but previously sharded collections
SERVER-48244 Shell should not hard-code the allowed explain levels and let the server reject it instead

Build and Packaging

SERVER-42042 Warn or fail early on dynamic builds with toolchain compiler and tcmalloc
SERVER-46927 Clarify dependencies for release-related tasks
SERVER-48329 Adjust naming of action_type.h on either master or all stable branches
SERVER-48640 Update RHEL 6.2 AMI for package tests
SERVER-48659 Update SLES 12 AMI for package tests
SERVER-48681 Update Debian 8.1 AMI for package tests
SERVER-49925 Dynamic builders should not combine the mongodbtoolchain with tcmalloc
SERVER-50124 Pin lazy-object-proxy python module

Internals

SERVER-33229 Overload startParallelShell in auto_retry_on_network_error.js to connect after loading the auto_retry_on_network_error.js override
SERVER-36454 Upgrade ASIO
SERVER-37993 Upgrade asio to eed287d46c14310f0daf4ff19b0297917143723
SERVER-41600 IndexCatalog::refreshEntry should invalidate the index from the CollectionInfoCache
SERVER-42908 Add ErrorCodes to retryable errors to match drivers
SERVER-46758 setFCV can be interrupted before an FCV change is majority committed and rollback the FCV without running the setFCV server logic
SERVER-47930 Ubuntu 20.04 - ldap_authz_authn.js fails to load test certificate
SERVER-48032 Update references of community mailing-lists to MongoDB Developer Community Forums
SERVER-48107 Retry replSetStepDown in rollback_test.js
SERVER-48514 Separate testing 'called' and 'successful' fields for serverStatus election metrics
SERVER-48569 Add ConflictingOperationInProgress as acceptable error code to stepDown in validateCollectionsCallback
SERVER-48657 Use evergreen module to control signal processing in perf projects
SERVER-49007 Roundtrip registration id in metrics response in mock_http_server.py
SERVER-49071 Make ldap_fastest_host_selection.js tolerate missing LDAP servers in statistics
SERVER-49142 Validate correct field name in RoleName::parseFromBSON()
SERVER-49335 publish_packages should use barque API key
SERVER-49404 Enforce additional checks in $arrayToObject
WT-5242 Minimize checkpoints pinned during backup
WT-6118 Fix missing checkpoint in backup
WT-6141 Disable checkpoint deletion during backup

4.0.19 Changelog

Sharding

SERVER-37929 ShardRegistry in config servers can keep invalid entries after it rolls back until next reload
SERVER-39498 ShardRegistry reload inside onReplicationRollback can get stuck
SERVER-42862 Prevent shard refreshes in mergeChunks command from joining earlier refreshes
SERVER-45910 Router might target wrong shard on write operation for unsharded collection
SERVER-46487 The mongos routing for scatter/gather ops can have unbounded latency
SERVER-46942 State information can be leaked if server closes too quickly on network_interface_tl
SERVER-47436 Make shards validate shardKey in dataSize command
SERVER-47745 Make chunk query in ShardingCatalogManager compatible with chunks created in 3.4
SERVER-47913 Redact sharding messages in split chunk and distributed lock acquisition
SERVER-47999 balance_repl.js should ensure writes have replicated before attempting to read them from a secondary

Replication

SERVER-46195 Secondary in rollback_after_enabling_majority_reads.js goes into rollback before validate command
SERVER-47558 Revert SERVER-38356 on 4.0
SERVER-47613 Invariant in processReplSetRequestVotes
SERVER-47695 Write commands run by threads that can survive rollback can fail operationTime invariant in ServiceEntryPoint
SERVER-48276 ReplSet Free Monitoring URLs inconsistent
SERVER-48374 Pass in array for awaitReplication() in rollback_after_enabling_majority_reads.js

Query

SERVER-40805 Indicate the reason for replanning in the log file
SERVER-47209 change_streams_update_lookup_shard_metadata_missing.js should handle the node the change stream cursor was established on going through rollback
SERVER-47773 geoNear invariant on mongos
SERVER-47994 Fix for numerical overflow in GeoHash

Write Operations

SERVER-47233 WriteOp can be left in pending state, leading to erroneous NoProgressMade write error from mongos

Aggregation

SERVER-44689 Add serverStatus counter for each use of an aggregation stage in a user's request

Storage

SERVER-46398 Suggest explicit dbpath when starting mongod on macOS and the default dbpath isn't found
SERVER-46699 Report the oplog visibility timestamp in FTDC

Operations

SERVER-45295 Make sure that LDAP logs always contain context on AuthZN operation

Internals

SERVER-39241 Plan scoring incorrectly applies noFetchBonus bonus to all plans when no projection is provided
SERVER-42525 Single-node replica sets shouldn't wait for electable caught up secondaries during shutdown
SERVER-43889 Distinguish between a retryable write and a transaction when failing a command
SERVER-45334 Service Name not respected in MSI Installer
SERVER-45367 When the Range Deleter is waiting for the open cursors, list these cursors in the logs.
SERVER-45508 Invariant failure in getFieldsWithStringBounds with descending point ranges
SERVER-46633 Windows TLS implementation may declare hostname mismatch on unrelated error
SERVER-46758 setFCV can be interrupted before an FCV change is majority committed and rollback the FCV without running the setFCV server logic
SERVER-47063 Upgrade static OpenSSL to 1.1.1e
SERVER-47071 CheckReplOplogs can fail to detect a mismatch
SERVER-47187 Add startup warning when SeIncreaseWorkingSetPrivilege not present
SERVER-47256 Update listed maintainer for repo package files
SERVER-47373 Improve handling of empty TLS packets
SERVER-47634 Make metric tests in stepup.js more robust
SERVER-47686 Upgrade static OpenSSL to 1.1.1g
SERVER-47765 4.0 Only: Make variables declared above DocumentSourceGraphLookup available within
SERVER-47798 Audit isMaster response validation for mongod and mongos
SERVER-48269 Fix rlp tests in 4.0

4.0.18 Changelog

Security

SERVER-46834 Use monotonic time in UserCacheInvalidator
SERVER-47113 LDAP connection pool acquisition state should own host list

Sharding

SERVER-29153 Make sure replica set nodes agree on which node is primary before doing writes in ShardingTest initialization
SERVER-44463 insertConfigDocumentsAsRetryableWrite() incorrectly calculates BSON array overhead
SERVER-45119 CollectionShardingState::getCurrentShardVersionIfKnown returns collection version instead of shard version
SERVER-46307 database_versioning_safe_secondary_reads.js should not set "votes: 0" on the shard secondaries

Replication

SERVER-33627 Initial syncer needs to handle exception

Query

SERVER-32903 Ambiguous field name error should be ignored during initial sync

Operations

SERVER-34199 "timing" section of serverStatus can have large impact on ftdc retention
SERVER-41117 Blacklist autocomplete.js from parallel testing
SERVER-44892 getShardDistribution should use $collStats agg stage instead of collStats command
SERVER-46024 Collect /proc/vmstat swap statistics in FTDC

Build and Packaging

SERVER-46983 Upload repobuilding packages to correct URL
SERVER-46996 all push/publish_packages tasks should run on small hosts

Internals

SERVER-30739 config_server_checks.js should assert if initial replSetConfig fails
SERVER-36467 continuous stepdown overrides should maintain parameters
SERVER-37148 Remove mr_shard_version.js and mr_during_migrate.js in favor of MR FSM test
SERVER-38119 Windows dump file naming does not account for dots in directory names
SERVER-42278 Log SockAddrs produced during LDAP connection establishment with manually derived sizes
SERVER-43763 Figure out if global LDAP synchronization can be disabled when libldap is built with OpenSSL.
SERVER-45050 Change Windows Kerberos client to use default credentials when no password is specified
SERVER-45156 SockAddr constructor should take sockaddr, not sockaddr_storage
SERVER-45867 Use latest version of signal processing
SERVER-46754 Use new repobuilder service
SERVER-46766 Teardown clusters after every perf run
SERVER-46851 Decrease the number of jobs in logical session cache tests
SERVER-46899 Fix tcmallocReleaseRate parameter in 4.0 and 3.6
SERVER-47080 Enable verbose logging for LDAP tests
SERVER-47114 Make ldapproxy.py use IOCP on Windows
WT-5119 Birthmark records can be read as normal updates if reads race with checkpoints
WT-5376 WT_UPDATE.type field can race with visibility checks when returning key/value pairs

4.0.17 Changelog

Sharding

SERVER-44598 Shards do not treat the IGNORED version as "intended sharded"
SERVER-45273 Remove the mongos version check in allow_partial_results.js and return_partial_shards_down.js
SERVER-45599 Backport the changes to CollectionShardingState done as part of SERVER-32198 to 4.0
SERVER-45770 Add to information contained in logfile about "moveChunk.to"
SERVER-46001 Move checkShardingIndex outside shardCollection's read critical section on the primary shard
SERVER-46466 Race with findAndModify retryable write and session migration

Replication

SERVER-34768 Rollback can fail if run against a lagged node that catches up
SERVER-35050 Don't abort collection clone due to negative document count
SERVER-35437 Wait for secondary state after stepdown command in multi_rs.js
SERVER-39112 Primary drain mode can be unnecessarily slow
SERVER-39495 Shard key is omitted from update and remove oplog entries with multi:true
SERVER-42219 Oplog buffer not always empty when primary exits drain mode
SERVER-43867 Work around unrecoverability of rollback via refetch in tests
SERVER-45178 Rollback via refetch can cause rollback to happen successfully w/o updating the rollback id.
SERVER-45493 temporarily disable failing assertion in election_candidate_and_participant_metrics.js
SERVER-45840 Blacklist tests that run emptycapped from replica_sets_kill_secondaries_jscore_passthrough
SERVER-46050 Use getLastAppliedOpTime rather than getHeartbeatAppliedOpTime for checking primary's position
SERVER-46238 Race between commitTransaction and transaction expiration leads to invariant

Query

SERVER-45363 Issue with mongodb text indexes and weights when using wildcard specifier

Aggregation

SERVER-45418 DocumentSourceCursor batching memory accounting does not account for empty documents, leads to unbounded memory use for count-like aggregates

Internals

SERVER-40014 System-Perf: Default is_patch expansion to false
SERVER-44325 Add polyfill for certificate chain verification
SERVER-44435 Allow x509 authorization to be selectively enabled based on the CA
SERVER-44853 MSI Should skip install MongoD service dialog when mongod is not selected to be installed
SERVER-45766 Remove "requires" from the server yaml
SERVER-46082 Use bin/analysis.py for performance projects
SERVER-46126 LDAP proxy and mongod startup race in ldap_insuffcient_access_rights.js
SERVER-46174 Free peer certificate in SSL_get0_verified_chain polyfill
SERVER-46365 getMore command before rs.initiate() can trip invariant
SERVER-46630 RemoveSaver writes GCM tag to incorrect file position
WT-5150 LAS sweep is not removing the entries that are no longer required
WT-5192 Don't allow checkpoints to evict without a snapshot
WT-5263 Prepared updates written to the lookaside file are not always read as needed
WT-5395 Fix a bug in the read lock implementation when there is a lot of contention
WT-5587 Limit how many checkpoints are dropped by a subsequent checkpoint

4.0.16 Changelog

Sharding

SERVER-44103 clear_jumbo.js should wait for balancer to be on mode: full for more than one round
SERVER-44130 Flip order of assert.lte arguments in logical_time_metadata.js

Replication

SERVER-45758 Add sleep to TimeInactiveMicrosShouldBeSetUponUnstashAndStash in session_test
SERVER-45761 Use same clock for test and working code in session_test [v4.0]

Query

SERVER-44658 Add correct tags for noPassthrough/max_time_ms.js
SERVER-45279 GranularityRounder can get stuck in loop when rounding infinity

Storage

SERVER-38794 CollectionOptions can be lost in createCollection if a write conflict exception is thrown
SERVER-45289 Conditional jump or move depends on uninitialised value(s) in validate_adaptor.cpp

Build and Packaging

SERVER-45713 Run rhel7 push and publish tasks on large rhel70 distro
SERVER-45732 Filter flags from net-snmp-config invocation more aggressively

Internals

SERVER-40047 Test for blocking queue should not test for non-guaranteed condition
SERVER-42573 Only warn about readConcernMajority enabled in primary-secondary-arbiter configuration
SERVER-45486 Add information to debug index key count mismatch issue in 'hashed_index_bad_keys_cleanup.js'
SERVER-45831 [4.0] Performance regression processing large aggregation commands

4.0.15 Changelog

Security

SERVER-45309 Ensure bind credentials live longer than LDAP operations

Sharding

SERVER-33597 Make allow_partial_results.js, return_partial_shards_down.js start shards as replica sets
SERVER-36865 make fsm workloads that extend kill_rooted_or.js more robust in the sharded concurrency suites, or blacklist them
SERVER-43195 Add namespace to ChunkManager ShardKeyNotFound failure in order to better diagnose failures.
SERVER-44341 Do not choose only first shard of all shards associated with a zone when pre-splitting during shard collection
SERVER-45100 Make the BatchWriteExecutor retry multi-writes only against unsuccessful shards

Replication

SERVER-35407 ReplicationCoordinatorExternalState and data replication must not be started after shutdown
SERVER-44061 Race while setting replication maintenance mode.
SERVER-44503 Race in replsets/auth2.js
SERVER-45396 fix the "me" field in isMaster responses when using splithorizon

Query

SERVER-42565 Aggregations and find commands sort missing fields differently
SERVER-45152 Negation of inequality on array can trip invariant

Aggregation

SERVER-44733 Change stream should throw ChangeStreamFatalError if a single shard cannot be targeted for updateLookup

Storage

SERVER-43910 include Client/OpCtx information in LockManager::dump() output
SERVER-44796 Adjust nojournal startup warning to be more compelling

Operations

SERVER-45290 Remove upstream metadata from v4.2's third party library manifest

Build and Packaging

SERVER-44550 Remove mobile specific embedded commands
SERVER-45346 Ubuntu 18.04 package testing task fails to install openssl

Internals

SERVER-34844 Relax expectations in apply_batches_totalMillis
SERVER-37406 A stashed Locker should keep information about the owning transaction
SERVER-39131 Refactor storage engine lock file support
SERVER-43210 jstests/sharding/kill_sessions.js doesn't wait for operation to be killed.
SERVER-43246 Add a log line for when a cursor is reaped due to logical session cleanup
SERVER-43349 Incorrect serialization for $elemMatch $not $ne
SERVER-44578 Remove unused db_raii and server_status libs from storage_wiredtiger_core's LIBDEPS_PRIVATE
SERVER-44828 Correct logic to re-compute dependencies after absorbing a $sort into query layer
SERVER-45472 Ensure RoleGraph can serialize authentication restrictions to BSON
WT-4636 Fix strace in syscall test
WT-5042 Reduce configuration parsing overhead from checkpoints
WT-5106 Remove temporary files in clang-format script
WT-5112 Handling goto labels with multiple words in s_goto.py
WT-5120 Checkpoint hangs when reconciliation doesn't release the eviction generation
WT-5125 Adding new stats for eviction target strategy
WT-5135 Change lookaside file inserts to use cursor.insert
WT-5169 WT_REF_LIMBO pages cannot support fast (leaf-page only) searches
WT-5196 Data mismatch failures with test/checkpoint after enabling LAS sweep
WT-5218 Improve eviction to differentiate between clean and dirty pages with WT_CACHE_EVICT_NOKEEP readgen
WT-5239 Fix syscall failure about metadata file open
WT-5247 Ensure that only idempotent modify operations are logged
WT-5277 Cursor key out-of-order detected in the lookaside file
WT-5297 syscall.py fail on mongodb-4.0

4.0.14 Changelog

Security

SERVER-28011 Support multiple KMIP hosts in the --kmipServerName parameter
SERVER-43090 Fix LDAP connection health tests with Okta
SERVER-43653 Upgrade static OpenSSL to 1.1.1d
SERVER-44320 Allow zoned sharding commands to be authorized via actiontypes

Sharding

SERVER-31083 Allow passing primary shard to "enableSharding" command for a new database
SERVER-42737 MongoDB stuck on update metadata
SERVER-42914 Implement random chunk selection policy for balancer for use in concurrency_*_with_balancer workloads
SERVER-44476 Include number of jumbo chunks remaining in output of removeShard

Replication

SERVER-41504 Track the number of ops during catchup in replSetStatus on primaries
SERVER-41505 Track the average number of catchup ops in serverStatus
SERVER-41506 Track metrics associated with a node calling an election
SERVER-41507 Track the time the new term oplog entry was written in replSetStatus on primaries
SERVER-41508 Track the time the new term oplog entry was majority committed in replSetStatus on primaries
SERVER-41512 Track metrics associated with a node voting in an election
SERVER-41513 Track the time the new term oplog entry was written by the primary and applied by secondary in replSetStatus on all nodes
SERVER-42534 Step down primary for less time in freeze_timeout.js and increase electionTimeoutMillis
SERVER-43239 numCatchUpOps in repSetGetStatus is incorrect
SERVER-43398 Fix race in replSetGetStatus_new_term_oplog_entry_fields.js
SERVER-43695 Add sleeps to session_test.cpp to account for discrepancy between curTimeMicros and Date_t clock sources [v4.0]
SERVER-43703 Race when disabling rsSyncApplyStop failpoint and stopping server
SERVER-43868 Session::TxnResources::release() can throw exceptions in destructors (4.0.x only)
SERVER-43879 OplogInterfaceLocal::next should return an owned BSON obj
SERVER-43972 initial_sync_capped_index.js should check SECONDARY state before running validate
SERVER-44005 Improve robustness of rollback_after_enabling_majority_reads.js
SERVER-44643

4.0 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;}

4.0.28 Changelog

Security

Sharding

Replication

Aggregation

Storage

Internals

4.0.27 Changelog

Sharding

Replication

Query

Storage

Build and Packaging

Internals

4.0.26 Changelog

Security

Sharding

Replication

Query

Aggregation

Build and Packaging

Internals

4.0.25 Changelog

Sharding

Write Operations

Build and Packaging

Internals

4.0.24 Changelog

Replication

Query

Operations

Build and Packaging

Internals

4.0.23 Changelog

Sharding

Replication

Query

Storage

Operations

Internals

4.0.22 Changelog

Sharding

Replication

Query

Aggregation

Storage

Operations

Build and Packaging

Internals

4.0.21 Changelog

Security

Sharding

Replication

Query

Aggregation

Storage

Operations

Build and Packaging

Internals

4.0.20 Changelog

Sharding

Replication

Query

Storage

Operations

Build and Packaging

Internals

4.0.19 Changelog

Sharding

Replication

Query

Write Operations

Aggregation

Storage

Operations

Internals

4.0.18 Changelog

Security

Sharding

4.0 Changelog