3.6 Changelog

3.6.23 Changelog

Query

SERVER-40361 Reduce memory footprint of plan cache entries

Internals

SERVER-43973 jsTestName() should return a unique name for each thread in the parallel suite
SERVER-46686 Explain does not respect maxTimeMS
SERVER-50267 Set output limit for 'rawMongoProgramOutput()'
SERVER-52969 Disable Powercyle on non-master branches
SERVER-53992 Remove calls to detect-outliers from performance tasks
SERVER-54134 Ignore newer mongo versions on older branches of setup_multiversion_mongodb.py
TOOLS-2803 [v3.6] Add --config option for password values

3.6.22 Changelog

Sharding

SERVER-53182 [v3.6] Omit "versions" from {shardingState: 1} command when not running as a --shardsvr

Replication

SERVER-33747 Arbiter tries to start data replication if cannot find itself in config after restart
SERVER-52680 Removed node on startup stuck in STARTUP2 after being re-added into the replica set
SERVER-53026 Secondary cannot restart replication
SERVER-53345 Excuse arbiter_new_hostname.js from multiversion tests

Query

SERVER-32960 $mod has inconsistent rounding/truncation behavior

Storage

SERVER-52902 Remove assertion !haveJournalFiles() at dur_journal.cpp:265

Build and Packaging

SERVER-32437 Platform Support: add Amazon Linux 2
SERVER-52854 Fix package test on debian based system in 3.6

Internals

SERVER-50445 Return the value as double when NumberLong subtraction overflows in ExpressionSubtract
SERVER-50891 mongod 3.6.20-rc2 core dumps if dbpath DNE or perms block
SERVER-52654 new signing keys not generated by the monitoring-keys-for-HMAC thread
SERVER-52806 deb install files assume systemd

3.6.21 Changelog

Sharding

SERVER-51808 invariant failure: readConcern level != Available
SERVER-51885 Blacklist balancing_sessions_collection.js from sharding_csrs_continuous_config_stepdown

Replication

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-49991 Alias printSlaveReplicationInfo() shell helper
SERVER-50116 Forbid oplog writes when replication is enabled
SERVER-50640 listCommands should return "isMaster" alias in addition to "hello" command name

Query

SERVER-51083 Problem with regex index bounds
SERVER-51120 Find queries with SORT_MERGE incorrectly sort the results when the collation is specified

Storage

SERVER-34243 listCollections should not require a MODE_S database lock

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

Internals

SERVER-45624 Pre-split and distribute chunks of sessions collection
SERVER-50123 Record number of physical cores on all platforms
SERVER-50216 Adjust sys-perf frequencies
SERVER-50605 Add {logMessage: "msg"} test-only command
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-51303 Lookup stage followed by $match on type uses wrong field in matching condition
TOOLS-2590 [v3.6] sslAllowInvalidHostnames bypass ssl/tls server certification validation entirely

3.6.20 Changelog

Replication

SERVER-48967 Prevent replicated writes on empty namespaces on secondaries
SERVER-49990 Alias setSlaveOk() and getSlaveOk() shell helpers
SERVER-50039 Timing error in dbadmin.js test

Query

SERVER-36910 Reduce severity or remove log message for PlanExecutor::DEAD error during find
SERVER-39392 Invariant in PlanStage::dispose always evaluates as true
SERVER-48993 explodeForSort can produce incorrect query plan

Aggregation

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

Storage

SERVER-49449 index_restart_secondary.js is not compatible with storage engines without support for persistence

Operations

SERVER-48244 Shell should not hard-code the allowed explain levels and let the server reject it instead

Build and Packaging

SERVER-33000 Platform Support: add Ubuntu 18.04
SERVER-42042 Warn or fail early on dynamic builds with toolchain compiler and tcmalloc
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-41600 IndexCatalog::refreshEntry should invalidate the index from the CollectionInfoCache
SERVER-43233 Add ability to request only specific attribute(s) for the LDAP groups
SERVER-45202 Improve Command alias infrastructure
SERVER-47930 Ubuntu 20.04 - ldap_authz_authn.js fails to load test certificate
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-49404 Enforce additional checks in $arrayToObject
SERVER-50180 Fix User lifetime management in AuthorizationManager::acquireUserForSessionRefresh

3.6.19 Changelog

Sharding

SERVER-46487 The mongos routing for scatter/gather ops can have unbounded latency
SERVER-47913 Redact sharding messages in split chunk and distributed lock acquisition

Replication

SERVER-45610 Some reads work while system is RECOVERING
SERVER-47695 Write commands run by threads that can survive rollback can fail operationTime invariant in ServiceEntryPoint

Query

SERVER-40805 Indicate the reason for replanning in the log file
SERVER-47994 Fix for numerical overflow in GeoHash

Storage

SERVER-46398 Suggest explicit dbpath when starting mongod on macOS and the default dbpath isn't found

Operations

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

Build and Packaging

SERVER-42042 Warn or fail early on dynamic builds with toolchain compiler and tcmalloc
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

Internals

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-47256 Update listed maintainer for repo package files
SERVER-47686 Upgrade static OpenSSL to 1.1.1g
SERVER-47798 Audit isMaster response validation for mongod and mongos
SERVER-48032 Update references of community mailing-lists to MongoDB Developer Community Forums
SERVER-48657 Use evergreen module to control signal processing in perf projects
SERVER-49142 Validate correct field name in RoleName::parseFromBSON()
SERVER-49335 publish_packages should use barque API key
WT-5119 Birthmark records can be read as normal updates if reads race with checkpoints
WT-5150 LAS sweep is not removing the entries that are no longer required
WT-5196 Data mismatch failures with test/checkpoint after enabling LAS sweep
WT-5376 WT_UPDATE.type field can race with visibility checks when returning key/value pairs
WT-5587 Limit how many checkpoints are dropped by a subsequent checkpoint

3.6.18 Changelog

Security

SERVER-46834 Use monotonic time in UserCacheInvalidator

Sharding

SERVER-29153 Make sure replica set nodes agree on which node is primary before doing writes in ShardingTest initialization
SERVER-33597 Make allow_partial_results.js, return_partial_shards_down.js start shards as replica sets
SERVER-44130 Flip order of assert.lte arguments in logical_time_metadata.js
SERVER-45770 Add to information contained in logfile about "moveChunk.to"
SERVER-46466 Race with findAndModify retryable write and session migration

Replication

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-45178 Rollback via refetch can cause rollback to happen successfully w/o updating the rollback id.

Query

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

Storage

SERVER-45289 Conditional jump or move depends on uninitialised value(s) in validate_adaptor.cpp

Operations

SERVER-34199 "timing" section of serverStatus can have large impact on ftdc retention
SERVER-46024 Collect /proc/vmstat swap statistics in FTDC

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
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-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-40047 Test for blocking queue should not test for non-guaranteed condition
SERVER-40305 Add diagnostic logging to max_time_ms.js
SERVER-42278 Log SockAddrs produced during LDAP connection establishment with manually derived sizes
SERVER-42525 Single-node replica sets shouldn't wait for electable caught up secondaries during shutdown
SERVER-43349 Incorrect serialization for $elemMatch $not $ne
SERVER-44325 Add polyfill for certificate chain verification
SERVER-44435 Allow x509 authorization to be selectively enabled based on the CA
SERVER-44868 Initialsync logkeeper and logkeeper-short tests should pass snapshot id and dataset link respectively to dsi(sys-perf)
SERVER-45156 SockAddr constructor should take sockaddr, not sockaddr_storage
SERVER-45472 Ensure RoleGraph can serialize authentication restrictions to BSON
SERVER-45766 Remove "requires" from the server yaml
SERVER-45867 Use latest version of signal processing
SERVER-45935 [3.6] WT error handler incorrectly prints "An unsupported journal format detected"
SERVER-46082 Use bin/analysis.py for performance projects
SERVER-46174 Free peer certificate in SSL_get0_verified_chain polyfill
SERVER-46754 Use new repobuilder service
SERVER-46766 Teardown clusters after every perf run
SERVER-46899 Fix tcmallocReleaseRate parameter in 4.0 and 3.6
SERVER-47063 Upgrade static OpenSSL to 1.1.1e
SERVER-47232 Ensure availability of Python ldap libraries

3.6.17 Changelog

Replication

SERVER-34876 initial_sync_with_write_load.js needs to await initial sync completion before reading oplog
SERVER-45396 fix the "me" field in isMaster responses when using splithorizon

Query

SERVER-42565 Aggregations and find commands sort missing fields differently

Aggregation

SERVER-42756 $multiply operator may return with or w/o an error depending on whether pipeline optimisation is enabled
SERVER-43764 Add more testing for special values in DoubleDoubleSummation
SERVER-44174 $push and $addToSet should restrict memory usage
SERVER-44733 Change stream should throw ChangeStreamFatalError if a single shard cannot be targeted for updateLookup
SERVER-44869 Add query knob to control memory limit for $push and $addToSet

Storage

SERVER-44796 Adjust nojournal startup warning to be more compelling

Build and Packaging

SERVER-37772 Platform Support: Add Community & Enterprise RHEL 8 x64
SERVER-44641 Platform Support: Remove Enterprise RHEL 7 zSeries and SLES 12 zSeries from 3.6

Internals

SERVER-34844 Relax expectations in apply_batches_totalMillis
SERVER-35099 Increase wtimeout in get_last_error.js even more
SERVER-35382 _isSelf command needs to be marked requiresAuth false
SERVER-38002 Upgrade Pcre to at least 8.42
SERVER-39131 Refactor storage engine lock file support
SERVER-42697 Expose tcmalloc_release_rate via setParameter
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-44568 Update the embedded version of the server's timezone data file to tzdb-2019c
SERVER-44828 Correct logic to re-compute dependencies after absorbing a $sort into query layer
SERVER-45104 [v3.6] Fix spill_to_disk.js
SERVER-45372 Blacklist versions without majority read concern for change_streams_update_lookup_shard_metadata_missing.js
WT-4636 Fix strace in syscall test
WT-5042 Reduce configuration parsing overhead from checkpoints
WT-5120 Checkpoint hangs when reconciliation doesn't release the eviction generation
WT-5135 Change lookaside file inserts to use cursor.insert
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

3.6.16 Changelog

Security

SERVER-44320 Allow zoned sharding commands to be authorized via actiontypes

Sharding

SERVER-42914 Implement random chunk selection policy for balancer for use in concurrency_*_with_balancer workloads

Replication

SERVER-43193 Always disable document validation on secondaries
SERVER-44675 server_status_metrics.js fails due to racy repl.buffer.count metric in serverStatus

Query

SERVER-44571 Documents involved in SERVER-44050 corruption scenario cannot be updated or deleted after upgrade

Storage

SERVER-44584 (3.6) Rewriting updates as modifications incorrectly considers logging state

Build and Packaging

SERVER-37769 Platform Support: Add Community & Enterprise SLES 15 x64
SERVER-44392 Platform Support: Remove zSeries ubuntu 16.04

Internals

SERVER-35463 Mark listCommands as pre-auth
SERVER-38002 Upgrade Pcre to at least 8.42
SERVER-40669 install_compass should not explicitly use python3
SERVER-42961 Fix Split Horizon testing on SLES
SERVER-43085 Regenerate all testing certificates with SHA-256 instead of SHA-1
SERVER-44140 Use signal processing without DSI
SERVER-44319 Skip keyfile check in replica_sets/auth1.js on windows
SERVER-44322 Fail gracefully when the storage engine has failed to initialize on v3.6
SERVER-44651 Update signal processing version
SERVER-44727 detect-changes should not be called via run-dsi

3.6.15 Changelog

Security

SERVER-43653 Upgrade static OpenSSL to 1.1.1d
SERVER-43751 Recompute compressor manager message parameters

Sharding

SERVER-10456 get cursor logic used to find docs to clone (in migration) is not same as in removeRange
SERVER-34760 Retries of _configsvrShardCollection may not send setShardVersion to primary shard
SERVER-36159 Log whenever the gossiped config server opTime term changes
SERVER-36222 call to ReplSetTest.restart in shard_identity_rollback.js is racy
SERVER-36315 After stepdown the CSRS dist lock manager keeps trying to unlock locks
SERVER-38205 Optimize splitVector for the jumbo-chunk case
SERVER-42783 Migrations don't wait for majority replication of cloned documents if there are no transfer mods
SERVER-42793 Autosplit size tracker random initial value is too low
SERVER-44182 Blacklist major_version_check.js from sharding_last_stable suite in 3.6

Replication

SERVER-37846 writeConcern can be satisfied with an arbiter if the write was committed
SERVER-38685 Startup warning if In-Memory SE is used and writeConcernMajorityJournalDefault is true
SERVER-38994 Step down on SIGTERM
SERVER-39310 Check canServeReadsFor in getMores
SERVER-40335 Don't wait for election handoff in ReplSetTest.stopSet()
SERVER-40355 rs.config that contains an _id greater than the number of nodes will crash
SERVER-42155 Indicate term mismatches when readConcern times out
SERVER-43109 Explicitly state nodes in awaitReplication in do_not_advance_commit_point_beyond_last_applied_term.js
SERVER-43673 Blacklist toggle_feature_compatibility.js from backup_restore.js on 3.6
SERVER-43708 Wait for nodes to become secondary in last_vote.js and slave_delay_clean_shutdown.js

Query

SERVER-39019 $elemMatch $ne serialization is incorrect, doesn't roundtrip
SERVER-40382 Add a serverStatus metric to report plan cache memory consumption
SERVER-41863 Make sleep command check that server clock has advanced before returning
SERVER-43074 Do not use a global variable to encode 'multikeyPath' information when writing out catalog documents
SERVER-43699 Find $mod can result in UB

Aggregation

SERVER-43034 Special values handling is inconsistent in DoubleDoubleSummation

Storage

SERVER-42441 renameCollectionForApplyOps should always rename the target out of the way if it exists
SERVER-42652 Fix issue with rename collection
SERVER-43908 Modify IndexConsistency hash-map keys to avoid hitting an invariant on duplicate index keys in KeyString form for different indexes
SERVER-44188 [4.0] validate_tests should remove index entries by RecordId obtained from the cursor

WiredTiger

SERVER-35271 4.0 rc0 upgrade from 3.6.5 logs "unsupported WiredTiger file version" error
SERVER-39004 Introduce a quota mechanism for the overflow file
SERVER-40575 Improve error message when starting MongoDB 3.6 on unclean shutdown of MongoDB 4.0

Operations

SERVER-28604 Log when a cursor is reaped for exceeding the timeout
SERVER-40537 Log error code 261 for TooManyLogicalSessions to the mongodb.log
SERVER-42257 Add new shell startup banner
SERVER-43081 validate should report when an index's 'multikeyPaths' are set but the 'multikey' flag is false
SERVER-43350 The server crashes when trying to join collections ($ lookup with pipeline).

Build and Packaging

SERVER-42911 Rebuild mongodb by building.md and failed to build due to ModuleNotFoundError: No module named 'Cheetah' with MSVC on windows

Internals

SERVER-25025 Improve startup time when there are tens of thousands of collections/indexes on WiredTiger
SERVER-42075 Add DSI module to perf.yml
SERVER-42178 Disable Split Horizon HOSTALIAS testing on SLES
SERVER-42706 Test seeding secondary without sessions or transactions table
SERVER-42866 Trigger a logical session cache refresh on all shards in the ShardedCluster test fixture before running test
SERVER-42953 ttl_repl_secondary_disabled.js should prevent elections
SERVER-43151 Error in aggregation assertion at value.cpp:1368
SERVER-43240 Add DSI and mongo-perf modules to MMAP build variants in v4.0 mongo
SERVER-43634 Report different errors for missing scons and fail to import scons
SERVER-43922 ldap_authz_lib.js uses runNonMongoProgram on 3.6
SERVER-44064 Perform explicit cast on MessageCompressorManager parameter
SERVER-44183 Failure to listen on an asio socket should be fatal
SERVER-44184 De-duplicate resolved addresses on v3.6
SERVER-44312 Specify evergreen auth in performance tests for signal processing
WT-4869 Stop adding cache pressure when eviction is falling behind
WT-4881 Soften the restrictions on re-entering reconciliation
WT-4893 Fix a race between internal page child-page eviction checks and cursors in the tree
WT-4898 Don't allow the eviction server to reconcile if it's busy
WT-4956 Handle the case where 4 billion updates are made to a page without eviction
WT-4957 Revert part of a change about when pages are queued for urgent eviction
WT-5050 Assertion failure during urgent eviction of metadata page

3.6.14 Changelog

Security

SERVER-38945 SSL performance regression
SERVER-41069 Ability to disable authorization via x509 extensions
SERVER-41441 Upgrade static OpenSSL to 1.1.1c

Sharding

SERVER-26531 jumbo flag in chunk can be cleared when the shard that owns it donates a chunk
SERVER-36394 mongos should reset chunk size tracking information when autosplit = false or splitvector returns too few split points
SERVER-36443 Long-running queries should not cause a build-up of unused ChunkManager objects
SERVER-36469 shard_kill_and_pooling isn't querying the shard it's supposed to
SERVER-41859 logical_time_metadata.js shouldn't assume lastApplied opTime equals $clusterTime
SERVER-41867 CatalogCache::_scheduleDatabaseRefresh/_scheduleCollectionRefresh can try to grab _mutex it already owns
SERVER-41869 Reverse mutex acquisition order in CatalogCache::_scheduleCollectionRefresh
SERVER-42793 Autosplit size tracker random initial value is too low

Replication

SERVER-38659 Race condition in IsMasterIsFalseDuringStepdown unittest
SERVER-40336 ReplicationCoordinatorImpl::_random isn't robust to replica set members being started at the same time
SERVER-41036 Make ReadWriteAbility::_canAcceptNonLocalWrites AtomicWord<bool> to prevent torn reads.
SERVER-42055 Only acquire a collection IX lock to write the lastVote document

Query

SERVER-40134 Distinct command against a view can return incorrect results when the distinct path is multikey
SERVER-41065 Make agg evaluate() thread safe by passing 'Variables' as a parameter
SERVER-41829 findAndModify ignores filter expressions that are not objects

Storage

WiredTiger

SERVER-41913 Avoid in-place modify operations for logged collections

Operations

SERVER-36099 FTDC for mongos is unworkably large for large installations

Build and Packaging

SERVER-36043 systemd unit for mongod starts before multi.user target
SERVER-40563 Our init scripts check /proc/[pid]/stat should validate that (${procname}) is the process' command name.
SERVER-41424 scons should fail early if invoked with wrong Python interpreter
SERVER-41443 Update Enterprise License
SERVER-41743 Update MSI inclusions for 3.6
SERVER-42089 Platform Support: Remove Enterprise RHEL 6.7 zSeries from 3.4 and 3.6
SERVER-42109 Add Ubuntu 14.04 to v3.6
SERVER-42233 Bump Windows package dependencies
SERVER-42603 Recent service file change may cause cyclic dependencies

Internals

SERVER-26626 In external_auth_WT JSTests, ensure that Saslauthd has fully started before continuing test
SERVER-35067 Blacklist explain2.js from retryable writes jscore stepdown suite
SERVER-37984 Upgrade yaml-cpp >= 0.6.0
SERVER-38141 Incorrect usage of MONGO_CONFIG_HAS_SSL_SET_ECDH_AUTO prevents enabling of elliptic curve auto negotiation
SERVER-39642 Decrement egress counter when scoped connection not returned to the pool
SERVER-40156 Initial implementation of Split Horizon
SERVER-40643 Add tests for replSetConfig and replSetInitiate with Split Horizon
SERVER-40645 Add tests for SNI/TLS behavior of Split Horizon
SERVER-40923 Remove npm test command from "run jstestfuzz" Evergreen function
SERVER-40924 Add Evergreen task to sanity check fuzzer can parse JavaScript tests
SERVER-41004 killSessions command can return CursorNotFound error for successful kill
SERVER-41016 Calculate deltas for updates to large documents
SERVER-41075 Remove 'mongo/repl/replication_coordinator.h' from op-context inclusion path
SERVER-41148 FTDC is calling boost::filesystem without passing an error_code parameter
SERVER-41184 Add metrics to indicate the amount of sharded updates done with only _id in query
SERVER-41349 Add a log statement for slow dns resolution
SERVER-41401 patch_files.txt doesn't distinguish between enterprise and community files
SERVER-41442 Fix second race in umask.js
SERVER-41546 SysV init scripts should verify PIDfile exists instead of failing
SERVER-41624 Fix Split Horizons on Legacy Transport in v3.6
SERVER-41680 Propagate ${branch_name} Evergreen expansion to fuzzer invocation
SERVER-41753 Fix indexc.js to not depend on the clock always moving forward
SERVER-41789 sys-perf: Use bootstrap.overrides in bootstrap.yml config file
SERVER-41833 Update README license text
SERVER-41967 Symlink /data to Z instead of C
SERVER-42178 Disable Split Horizon HOSTALIAS testing on SLES
SERVER-42228 LoggerRuntimeConfigError exceptions can lead to background dbhash thread running until Evergreen task times out
WT-4352 Resolve birthmarks during eviction in more cases
WT-4421 Add a way to calculate modify operations
WT-4693 WT_CONNECTION::reconfigure should not require quiescence when downgraded
WT-4706 Add a statistic to track the lookaside table size
WT-4750 Sweep can remove active lookaside records when files are closed and re-opened
WT-4759 Save a copy when an old overflow value is discarded
WT-4768 Inconsistent data with lookaside eviction followed by sweep
WT-4769 Don't discard active history for empty pages
WT-4776 Modify operations should be equivalent to updates
WT-4794 Mark lookaside history resolved in all paths
WT-4803 Implement file_max configuration for Cache Overflow mechanism
WT-4823 Add check for uninitialised lookaside resources
WT-4848 Fix perf regression when calculating differences

3.6.13 Changelog

Security

SERVER-40226 Upgrade static OpenSSL to 1.1.1b
SERVER-40393 Disable SSL_MODE_RELEASE_BUFFERS in ASIO

Sharding

SERVER-36004 SessionUpdateTracker should ignore no-op entries for pre/post image oplogs
SERVER-36457 mongos_rs_shard_failure_tolerance.js test should assert that the movePrimary command succeeds
SERVER-39420 Remove in-memory boolean to indicate config.server.sessions collection set up
SERVER-40136 The background key generator can remain disabled on FCV upgrade after a downgrade

Replication

SERVER-35636 Renaming collection for applyOps needs to check completeness of target namespace
SERVER-37065 Report ismaster:false in isMaster command response immediately upon learning of a new term
SERVER-39831 Never update commit point beyond last applied if learned from sync source
SERVER-40628 Initial sync could fail under replsetprio1.js settings
SERVER-40788 Improve logging around replication catchup
SERVER-40977 mmapv1 and ephemeralForTest variants should exclude tests with requires_majority_read_concern tag
SERVER-41081 do_not_advance_commit_point_beyond_last_applied_term.js must wait for Node E to reach stopReplProducerOnDocument failpoint
SERVER-41247 do_not_advance_commit_point_beyond_last_applied_term.js must not run with periodic noop writer on
SERVER-41342 read_committed_stale_history.js must perform continuous writes to ensure majority commit point propagates to secondary

Storage

SERVER-16571 Use Actual Memory Constraint vs. Total System Memory When They Differ
SERVER-30356 Improve error reporting for validation
SERVER-41213 Unique background index builds may produce inconsistent keys

Operations

SERVER-39820 Add the client IP address to the successful authentication log message
SERVER-40866 Use JSON.stringify() to serialize string in tojson()

Build and Packaging

SERVER-37765 Platform Support: Remove Ubuntu 14.04
SERVER-37774 Platform Support: Remove Enterprise Ubuntu 16.04 PPCLE
SERVER-40242 Update banner inclusions for vendored tools
SERVER-40491 Update Debian 8 image for package test

Internals

SERVER-37382 printShardingStatus.js races with ShardingUptimeReporter thread
SERVER-38984 Attach IDs to users
SERVER-39746 System-Performance: Write project in runtime.yml
SERVER-40052 Shutdown in mongos can trigger BatchWriteOp invariant
SERVER-40165 generate wtimeout deadlines with the precise clock
SERVER-40514 Race between BufferedHandler.close() and BufferedHandler.flush() leads to resmoke.py hanging with --log=buildlogger
SERVER-40922 Add npm install command to "run jstestfuzz" Evergreen function
SERVER-40932 Increase timeout for shutting down the ServiceExecutor
SERVER-41088 Propagate Evergreen order field to Cedar for system perf
SERVER-41103 Fix fuzzer task invocations
SERVER-41169 Most powercycle testing for Linux was removed from Evergreen
TOOLS-2068 mongodump oplog delay

3.6.12 Changelog

Sharding

SERVER-35219 Regain MongoDB balancer performance with sessions
SERVER-39847 Migrating session info can trigger fassert when destination shard has transaction history truncated by oplog
SERVER-39932 SessionRuntimeInfo memory is not being released

Replication

SERVER-37255 replSetReconfig with concurrent election can trigger invariant
SERVER-38722 CollectionCloner should handle QueryPlanKilled on collection drop
SERVER-39490 opWriteConcernCounters can cause undefined behavior due to overflow
SERVER-39641 Blacklist max_time_ms.js from read concern linearizable passthrough
SERVER-39758 double_rollback.js should reliably wait for node 0 to complete rollback
SERVER-40039 Increase assert.soon timeout in initial_sync_invalid_index_spec.js

Query

SERVER-38764 External sorter should use 64-bit integers for file offsets

Aggregation

SERVER-39394 Views collation check should traverse through nested $lookup pipelines
SERVER-39487 Aggregation operator $sqrt output for NumberDecimal is the same as $exp

Storage

SERVER-17010 Reduce file handle usage in File based Sorter
SERVER-39773 decrease number of updates in rollback_wt_cache_full.js

Operations

SERVER-37722 Quiet mode does not suppress connection end events
SERVER-40131 Incorrect format string in Windows stacktrace generator.
SERVER-40259 Include third party notices for ASIO and variant

Build and Packaging

SERVER-36622 Package tests fail for newer Ubuntu

Tools

TOOLS-2229 Mongofiles deletes chunks of existing file when failing to put_id with existing _id

Internals

SERVER-36231 Mongos write path doesn't look for retryable write concern errors
SERVER-36437 The dbstats command should lock the database in MODE_IS instead of MODE_S
SERVER-36750 blacklist memory.js on ppc64le in memory variants
SERVER-37620 Improve watchdog_test reliability
SERVER-38644 Guard against ephemeral files disappearing during umask test
SERVER-38697 Powercycle kill by PID might try to kill the wrong process
SERVER-38789 Accept connection failure on Windows in ssl_alert_reporting.js
SERVER-39056 Further refine readWriteAnyDatabase
SERVER-39058 Synchronize user set modification in AuthorizationSession with Client
SERVER-39822 Improve watchdog_test.exe test reliability
SERVER-40063 jstestfuzz_sharded_continuous_stepdown.yml is running with a 1-node CSRS on the 3.6 branch
SERVER-40076 Tag JavaScript tests with the reason they're unable to run in Atlas
WT-4324 Ensure checkpoints rewrite pages with data in the future
WT-4615 Sync backup file before returning backup cursor

3.6.11 Changelog

Security

SERVER-36606 Remove size limits on BSON audit events

Sharding

SERVER-9043 Link flushRouterConfig on the config server and shards
SERVER-31156 Admin command to update the chunk metadata for only one collection
SERVER-36863 query_config.js assumes that config.mongos is always present
SERVER-36901 sh.status() "Last reported error:" is actually 5th Latest error message
SERVER-37339 Sharding state is set to initialized on Grid before sharding components are fully initialized
SERVER-37624 Sessions never expire when you change value of localLogicalSessionTimeoutMinutes
SERVER-38192 Ignore duplicate key error from refreshLogicalSessionCacheNow
SERVER-38344 Early release of distributed database locks during initial collection sharding results in migration/split failures
SERVER-38387 agg_out.js concurrency workload always fails to shard the output collection
SERVER-38784 Blacklist verify_sessions_expiration_sharded.js from the sharding_last_stable_mongos_and_mixed_shards suite.
SERVER-39030 Wrong info logged by splitVector

Replication

SERVER-32146 Log slow oplog entry application
SERVER-35608 Invariant that term from lastAppliedOptime is never greater than our current term
SERVER-37274 commands_that_accept_wc tests can give secondaries priority zero
SERVER-37910 Create new serverStatus metric for number of operations applied on a secondary that's incremented at batch boundaries
SERVER-37915 Replication doesn't update opsCounterRepl command on secondaries
SERVER-38200 Fix ./jstests/replsets/initial_sync_oplog_hole.js to prevent using stale heartbeat info in the test.
SERVER-38647 backup_restore_rolling.js can fail due to stepdown
SERVER-38998 Create serverStatus metrics for readConcern and writeConcern
SERVER-39142 ServerWriteConcernMetrics must lock _mutex before modifying members
SERVER-39267 Guard opWriteConcernCounters behind flag
SERVER-39286 server_write_concern_metrics.js must use requires_journaling tag

Query

SERVER-38275 Handle explains without namespaces
SERVER-39472 Backport changes to apply_ops_concurrent_non_atomic.js to account for HMAC key inserts in 3.6 and 4.0.

Aggregation

SERVER-31098 Wrong ns in system.profile for aggregation query
SERVER-39109 mongod crash: Invariant failure !_exec src/mongo/db/pipeline/document_source_cursor.cpp 295
SERVER-39166 $graphLookup should force a pipeline to split in sharded cluster
SERVER-39322 Backport timelib fix for incorrect snprintf invocation with static buffer

Storage

SERVER-35732 Hyphenated database names do not work with dbStats.fsUsedSize / TotalSize
SERVER-38779 Build a mechanism to periodically cleanup old WT sessions from session cache
SERVER-38801 Cope with large BSON blobs in queryable's listDirectory call.

Operations

SERVER-37155 Improve the LDAP server logging

Build and Packaging

SERVER-33958 When using thin archives the --cache=nolinked mode should push thin archives to the cache
SERVER-38416 Upgrade static OpenSSL to 1.1.1a
SERVER-39483 Stripped binaries and .debug files should not be cached

Tools

TOOLS-2030 mongodump does not dump system.js collections
TOOLS-2109 Build Tools with Go 1.11

Internals

SERVER-31755 Raise intermediate $lookup document size to 100MB, and make it configurable
SERVER-35620 downloaded file integrity: use shasum instead of python script
SERVER-38748 Background indexes created through applyOps should run on the command thread
SERVER-38954 Increase query execution time for the test case in max_time_ms.js that expects it to hit the time limit
SERVER-39009 Make bulldlogger credentials location configurable via environment variable
SERVER-39031 Make SCons default --jobs to CPU count
SERVER-39331 Remove StressTest from network_interface_asio_integration_test
TOOLS-1906 Ignore mongorestore error "x509 certificate routines:X509_STORE_add_cert:cert already in hash table"
TOOLS-2158 mongodump failing on Windows with "error opening system CA store: Access is denied."
TOOLS-2167 Add CGO flags for building on Windows
TOOLS-2168 Add CGO flags for building on MacOS
TOOLS-2210 Build with tools with Address Space Layout Randomised (ASLR) flags enabled
WT-4483 Improve caching of small updates to large values

3.6.10 Changelog

Security

SERVER-35212 URI connection does not default to admin database when no authSource is specified
SERVER-37687 Capture libldap ErrorString in bind failure

Sharding

SERVER-36965 Ensure setUp writes in safe_secondary_reads_single_migration_suspend_range_deletion.js get propagated to the shard secondary
SERVER-37051 ShardServerCatalogCacheLoader does not check the internal term after reading from the task queue
SERVER-37080 Implement tuneable batch size for chunk migrations
SERVER-37511 Logical session reaper and refresh threads should set up sessions collection immediately
SERVER-37616 Implement tuneable batch size for the rangedeleter
SERVER-37902 recovering_slaveok.js should assert all writes it makes succeed
SERVER-37932 Remove erroneous part of coll_epoch_test1.js that attempts to test something that shouldn't work, but due to a bug in the test, the test passes
SERVER-38050 The range deleter doesn't validate it is still operating on the same collection after the deletion loop
SERVER-38062 Add assert.commandWorked() to commands in read_pref_cmd.js
SERVER-38196 Coverity analysis defect 105128: Unchecked return value
SERVER-38371 Session catalog migration will skip later sessions if a different earlier session encounters new transaction

Replication

SERVER-37500 Blacklist geo_s2ordering from replica_sets_kill_primary_jscore_passthrough suite
SERVER-37557 Add startup warning about enableMajorityReadConcern and usage of arbiters
SERVER-37935 Remove read concern "majority" overrides for change streams test suites
SERVER-38024 initial_sync_oplog_hole test should be tagged as requiring document locking
SERVER-38476 Increase timeout for clean_shutdown_oplog_state.js, again

Query

SERVER-35455 QueryPlannerAccess should hold owned pointers by unique_ptr rather than raw pointer
SERVER-37385 Change max_time_ms.js to tolerate 'Interrupted' error codes
SERVER-38070 Infinite loop in aggregation expression
SERVER-38164 $or pushdown optimization does not correctly handle $not within an $elemMatch
SERVER-38601 Add regression test for memory leak during planning

Aggregation

SERVER-37182 Different values when referencing whole object vs. a field of that object after $arrayToObject
SERVER-37200 $match stage following $listSessions not working against mongos
SERVER-37750 Optimized $sample stage does not yield
SERVER-38843 Mapreduce should not create collections with duplicate IDs

JavaScript

SERVER-31508 native_sleep used by JavaScript should be interruptable
SERVER-35061 Javascript sleep should always emit an error when interrupted

Storage

SERVER-29825 Do not allow rename from unreplicated to replicated DB or vice-versa
SERVER-36873 ReplicationCoordinatorExternalStateImpl::shutdown() must not hold _threadMutex while waiting for _taskExecutor
SERVER-36968 Rebuild interrupted indexes before checking AuthZN index presence
SERVER-37408 Add afterClusterTime to initial sync collection scans
SERVER-37524 In-Memory Storage Engine With Storage Watchdog Crashes The Server
SERVER-37862 Reduce update ops in initial_sync_wt_cache_full.js
SERVER-37930 Add test coverage for createIndexes inside nested applyOps
SERVER-37931 lock_stats_suboperation_logs.js should ignore noise lock stats
SERVER-38434 queryableBackupMode and wiredTigerEngineConfigString flags are incompatible
SERVER-38498 decrease number of updates in rollback_wt_cache_full.js

Operations

SERVER-33469 Make syslog log lines consistent with mongod log lines
SERVER-35485 Mongo Shell does not accept compressors connection string argument
SERVER-36977 Initial mongod.log is created using umask vs mode 600

Build and Packaging

SERVER-35936 MongoDB Community Windows installer fails to install Compass
SERVER-38421 Requirement on cryptography should reflect what is in the toolchain
SERVER-38726 Add stable toolchain variables files

Tools

TOOLS-1709 Set build version and git revision using -ldflags
TOOLS-2149 Configure build outside Evergreen

Internals

SERVER-32424 Use WiredTiger cursor caching
SERVER-34770 Retry on JavaScript execution interruptions in stepdown suites
SERVER-35768 gssapiServiceName URL parameter does not work
SERVER-36060 Make unit tests build cleanly on clang-6
SERVER-36817 replSetFreeze command run by stepdown thread may fail when server is already primary
SERVER-37120 Turn off linux-replSet-initialsync-logkeeper Build Variant for 3.4 and 3.6 branches
SERVER-37241 Add testing to verify proper expiration of sessions in the sessions collection
SERVER-37289 Use authenticated client to run the refreshLogicalSessionCacheNow command in resmoke sharded cluster fixture
SERVER-37391 plan_cache_index_create.js should wait for index build start, rather than just createIndexes command start
SERVER-37490 Increase the ConnectTimeout for powercycle
SERVER-37562 Reduce all IX locks to IS locks in SessionsCollectionRS
SERVER-37678 Update linter to enforce SSPL in header files
SERVER-37913 coll_epoch_test1.js does not wait for the config server to replicate after dropping collections.
SERVER-37916 Make legacy transport layer Sockets log hostnames in TLS version negotiations
SERVER-38055 Mongod servers started through the shell do not respect TestData.enableMajorityReadConcern
SERVER-38159 Blacklist umask nopassthrough test on mmapv1
SERVER-38178 Buffer Overflow in data_builder.h when using terminated StringDatas
SERVER-38230 Put secondary_reads_passthrough task in the right build variants
SERVER-38303 Temporarily handle ipv6 failures due to s390x machine without ipv6 enabled
SERVER-38390 Set requiresAuth to false for certain commands
SERVER-38415 checkLog.containsWithCount does not reset count before each loop of assert.soon
SERVER-38616 LDAPArrayIterator behaves incorrectly when initialized with an empty array
TOOLS-1566 Should not include "ssl" tag for Linux 64 build
TOOLS-1742 import cycle between util and testutil
TOOLS-1996 Allow building tools from inside an ordinary GOPATH
TOOLS-2099 Tools jstests failing on replica set shutdown
TOOLS-2155 Set version/git-commit via ldflags in Evergreen and Server Evergreen
TOOLS-2157 Update server vendoring
WT-4333 WiredTiger cursor cache doesn't handle all possible locked handle states
WT-4340 The cursor caching layer can incorrectly release too many handle locks
WT-4343 Unlock when sleeping to allow other log threads to make progress
WT-4411 Added connection statistic for current total of cached cursors
WT-4418 Don't keep key/value memory buffers allocated for cached cursors
WT-4438 Use more accurate statistics for cursor cache totals

3.6.9 Changelog

Security

SERVER-35418 Allow specifying CAs for incoming and outgoing connections separately
SERVER-37135 TLSVersionCounts needs to track and report TLS 1.3

Sharding

SERVER-29160 Sharding commonly uses write concern timeouts of 15 seconds and these are timing out in migration related operations and causing BFs
SERVER-31563 Reevaluate not_allowed_on_sharded_collection_cmd.js testing
SERVER-31892 moveChunk with waitForDelete doesn't wait for majority write concern
SERVER-35222 Crash on the config server at expired session cleanup
SERVER-35238 Drop the collection after removing the partially written chunks for mapReduce in mongos_manual_intervention_actions.js
SERVER-35763 lastWriteDate field can get out of sync between repl set nodes during migration
SERVER-36831 LogicalSessionCache on mongos does not correctly report active operations
SERVER-36850 Add a replication passthrough suite to detect errors in LogicalSessionsCache
SERVER-37330 Add sharded passthrough suites to detect errors in LogicalSessionCache
SERVER-37430 Destroy sharding task executors and AsyncRequestSenders after the PeriodicRunner is destroyed in mongod shutdown
SERVER-37496 The balancer shouldn't register a shutdown task after the process is multithreaded
SERVER-37631 Disable logical sessions if FCV is 3.4
SERVER-37657 Report the offending oplog entries if a batch contains non-increasing transaction numbers
SERVER-37735 [3.6] Ensure the full logical session id is included in commands sent by the ShardingTaskExecutor

Replication

SERVER-20845 re-add replSetReconfig to auditing suite
SERVER-25175 listIndexes shouldn't include in-progress background indexes
SERVER-33383 Execution of replSetStepDown can race with unconditional stepdown via heartbeat response
SERVER-34362 ReplicaSetCoordinatorExternalStateImpl::_dropAllTempCollections() needs to log failed db.
SERVER-34868 A cursor with the "exhaust" option does not return documents inserted in the same txn
SERVER-35239 AwaitData cursor must handle getMore from client with higher lastKnownCommittedOpTime
SERVER-36503 Skip dry-run election during election handoff
SERVER-36694 Do not hand off elections when in PV0
SERVER-36746 A failed step down attempt shouldn't unconditionally reset LeaderMode to kMaster
SERVER-36978 TaskRunner must ensure Client is initialized for thread before running tasks
SERVER-37118

3.6 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;}

3.6.23 Changelog

Query

Internals

3.6.22 Changelog

Sharding

Replication

Query

Storage

Build and Packaging

Internals

3.6.21 Changelog

Sharding

Replication

Query

Storage

Operations

Build and Packaging

Internals

3.6.20 Changelog

Replication

Query

Aggregation

Storage

Operations

Build and Packaging

Internals

3.6.19 Changelog

Sharding

Replication

Query

Storage

Operations

Build and Packaging

Internals

3.6.18 Changelog

Security

Sharding

Replication

Query

Aggregation

Storage

Operations

Build and Packaging

Internals

3.6.17 Changelog

Replication

Query

Aggregation

Storage

Build and Packaging

Internals

3.6.16 Changelog

Security

Sharding

Replication

Query

Storage

Build and Packaging

Internals

3.6.15 Changelog

Security

Sharding

Replication

Query

Aggregation

Storage

WiredTiger

Operations

Build and Packaging

Internals

3.6.14 Changelog

Security

Sharding

Replication

Query

Storage

WiredTiger

Operations

Build and Packaging

3.6 Changelog