* Disable PaX MPROTECT for bin/mongo
Changelog:
3.4.4 – Apr 21, 2017
Issues fixed:
SERVER-18794: Add an aggregation operator $objectToArray to convert an object to an array of key, value pairs.
SERVER-23310: Add an aggregation operator $arrayToObject to convert an array of pairs to an object.
SERVER-22611: ChunkManager refresh can occasionally cause a full reload.
3.4.4 Changelog
All JIRA issues closed in 3.4.4
3.4.3 – Mar 28, 2017
Issues fixed:
SERVER-27863: Reschedule firing of early alarms in NetworkInterfaceASIO to avoid mongos crash.
SERVER-28017: $ne should respect collection’s default collation.
SERVER-27700: Improve WiredTiger performance on secondary when cache is full.
3.4.3 Changelog
All JIRA issues closed in 3.4.3
3.4.2 – Feb 1, 2017
Issues fixed:
SERVER-27125: Arbiters in pv1 should vote no in elections if they can see a healthy primary of equal or greater priority to the candidate.
SERVER-27584 Add support for filter to listDatabases
WT-2670 Inefficient I/O when read full DB (poor readahead)
3.4.2 Changelog
All JIRA issues closed in 3.4.2
3.4.1 – Dec 20, 2016
Issues fixed:
SERVER-27124: Disallow readConcern: majority reads on replica set protocolVersion 0 (pv0).
SERVER-27201: $graphLookup triggers null pointer dereference.
SERVER-27207: Find operation with a sort on a view via mongos may incorrectly return empty result set.
SERVER-27213: Two $match pipeline stages can combine incorrectly to produce incorrect results.
3.4.1 Changelog
All JIRA issues closed in 3.4.1
* Fix build with boost 1.62.0
* Use fsync(2) instead of fdatasync(2) on NetBSD
When fdatasync(2) is used, journaling support does not work
on 7.99.39 and 7.0.1
Changelog:
MongoDB 3.2.10 is out and is ready for production deployment. This release contains only fixes since 3.2.9, and is a recommended upgrade for all 3.2 users.
Fixed in this release:
SERVER-12048 Calling "service mongod start" with mongod running prevents "service mongod stop" from working
SERVER-16801 Update considers a change in numerical type to be a noop
SERVER-20306 75% excess memory usage under WiredTiger during stress test
SERVER-24885 The systemd MaxTasks feature can prevent mongod from accepting new connections
SERVER-24971 Excessive memory held by sessions when application threads do evictions
SERVER-25478 Use wtimeout in sh.setBalancerState
SERVER-25951 Report additional metrics in getMore slowms logging
SERVER-25974 Application threads stall for extended period when cache fills
TOOLS-1429 mongostat panic when monitored server is restarted
WT-2026 Maximum pages size at eviction too large
WT-2924 Ensure we are doing eviction when threads are waiting for it
Changelog: https://docs.mongodb.com/manual/release-notes/3.2-changelog/
3.2.9 Changelog
Security
SERVER-17856 users on mongods should always be able to run currentOp and killOp on their own operations
Sharding
SERVER-23958 DBConfig::_loadIfNeeded will not do a reload even in cases where a force reload is needed
SERVER-24810 Swap movePrimary command for ShardingTest::ensurePrimaryShard
SERVER-24842 ShardingStateRecovery::recover cleanup should not wait for replication
SERVER-24892 "Creating first chunks failed: Data inconsistency detected amongst config servers" when using 3.2.3+ without replica set config servers
SERVER-25029 Segmentation fault in mongos when config servers not available
SERVER-25052 csrs_upgrade_set_shard_version.js test is racy
SERVER-25254 Only advance config server optime in response to messages from cluster members
SERVER-25258 Improve parsing of killOp opID in mongos
Replication
SERVER-22136 Attach term metadata to UpdatePosition command
SERVER-23795 master/slave looks at on-disk size on a resync
SERVER-24630 Mongos erroneously advances config optime for writes that fail write concern
SERVER-24933 Clean shutdown of secondaries should occur in between oplog batches, not during
SERVER-25353 Clean shutdown should leave secondaries without the batch-in-progress flag
Query
SERVER-24693 group7.js should deterministically check for yields
SERVER-24761 Queries being planned with the subplanner can ignore when the PlanExecutor is killed
Storage
SERVER-16910 sorth.js makes invalid assumption about order of results
WiredTiger
SERVER-23659 Provide useful message when wiredTigerJournalCompressor is changed
SERVER-24334 Support conditional files in WiredTiger builds
WT-2711 Change statistics log configuration options
WT-2730 cursor next/prev can return the wrong key/value pair when crossing a page boundary
WT-2760 Fix a bug in backup related to directory sync. Change the filesystem API to make durable the default
WT-2798 Crash vulnerability with nojournal after create during checkpoint
WT-2802 Transaction commit causes heap-use-after free
Operations
SERVER-20239 Built-in sampling heap profiler
SERVER-22347 Mongo shell replica set connections must use legacy readMode
SERVER-22383 mongo shell should permit mongodb:// URI without database name
SERVER-23069 Improve tcmalloc freelist statistics
SERVER-23145 Shell sharding helpers should give feedback on success
SERVER-23409 Add tunability to tcmalloc serverStatus detail
SERVER-23830 On RHEL7/Centos7 mongod can't stop if pid location in conf differs from the init.d script
SERVER-24335 Shell sharding helpers should use wtimeout and respond appropriately
Build and Packaging
SERVER-7285 Support systemd in future compatible distributions
SERVER-19986 clang-format.py lint fails in mci if files were deleted
SERVER-21820 Export "endian" option from SConstruct
SERVER-21830 Import the edit "endian" option in SConscript
SERVER-24849 Vendor SCons
Tools
TOOLS-1336 Make -version spit out a bit more information.
Internals
SERVER-23226 Port resmoke.py's CheckReplDBHash hook to javascript
SERVER-23306 Check collection attributes during (js) testing
SERVER-23661 $sample takes disproportionately long time on newly created collection
SERVER-23902 Failing to create a thread should fail with a useful error message
SERVER-24073 Update system perf, longevity, and distributed correctness projects to use dedicated work directory
SERVER-24346 Run jstestfuzz on rhel55-test instead of rhel55
SERVER-24593 virtualenv used for ese test should not use system-site-package
SERVER-24716 Remove the CheckReplDBHashDeprecated hook
SERVER-24758 Move initial_sync suite of tests into its own tasks in sys-perf project
SERVER-24820 move push tasks to use relevant ec2 distro rather than rhel55
SERVER-24919 Perf.yml should consistently call pip install in venv
SERVER-24925 add url_raw field to resmoke
SERVER-24946 Evergreen.yml test for storageEngineCacheSizeGB cannot use [[ ]]
SERVER-24990 Update command_line_parsing.js to ignore cacheSizeGB in configuration comparison
SERVER-25006 Connection Pool ASIO must indicate use separately from non-error
SERVER-25074 make performance analysis run with log analysis
SERVER-25146 JS replset dbhash hook fails when checking nindexes with a collection containing a background index
SERVER-25169 for all branches earlier than master, change rhel55 compile distro to rhel55-large
SERVER-25193 Update system_perf.yml to simplify patch builds
SERVER-25198 Increase scons stack size for eslint
SERVER-25199 performance project: enable time logic for log analysis
SERVER-25212 work around stale dbhash value on v3.2
SERVER-25259 Drop temporary databases in dbhash testing hook
SERVER-25273 Concurrency suite dbHash check should call checkDBHashesFsyncLocked
SERVER-25274 Make checkDBHashesFsyncLocked from jstests/hooks/check_repl_dbhash.js, an internal function
SERVER-25302 turn on YCSB throughput analysis for YCSB tasks in sys-perf
SERVER-25330 Update system_perf.yml to use different test_control file for replica and sharded ycsb
TOOLS-1079 write_concern_mongos jstests are flaky
TOOLS-1176 -dumpDbUsersAndRoles without users creates broken dumps
3.2.7 Jun 7, 2016
Issues fixed:
SERVER-24054: JS segmentation fault on load of certain NaNs.
SERVER-24058: Connection pool asio doesn't honor setup
timeouts.
SERVER-24117: Mongo binaries ELF stack has become executable.
3.2.6 Apr 28, 2016
First production release of the in-memory storage engine.
Issues fixed:
SERVER-22970: Background index build may result in extra index key
entries that do not correspond to indexed documents.
SERVER-22043: mongo shell method count() ignores read preference.
3.2.5 Apr 14, 2016
Issues fixed:
SERVER-22964: IX GlobalLock held while waiting for WiredTiger
cache eviction.
SERVER-22831: Low query rate with heavy cache pressure and an idle
collection.
SERVER-21681: Include index size stats for in-memory storage
engine.
- Fixed issue with setting optime when running with journaling
disabled
- Have read concern majority reflect journaled state on
the primary
- Fixed issue where specifying replication.enableMajorityReadConcern
implied true regardless of the actual boolean value
- Fixed issue causing segfault when running aggregation that
includes $lookup
Use yaml-cpp and zlib dependencies in place of bundled copies.
Notable changes:
- Fixed issue with MMAPv1 journaling where the "last sequence number"
file (lsn file) may be ahead of what is synced to the data files
- Fixed issue where in some cases, insert operations fails to add
the _id field to large documents
- Increased timeout for querying oplog to 1 minute
Full changelog:
https://docs.mongodb.org/manual/release-notes/3.2-changelog/
* Change JavaScript engine from V8 to SpiderMonkey.
Changelog:
3.2.1 – Jan 12, 2016
Fixed error where during a regular shutdown of a replica set, secondaries may mark certain replicated but yet to be applied operations as successfully applied: SERVER-21868.
Improve insert workload performance with WiredTiger on Windows: SERVER-20262.
Fixed long-running transactions during chunk moves: SERVER-21366
All issues closed in 3.2.1
3.0.9 – Jan 26, 2016
Fixed issue where queries which specify sort and batch size can return results out of order if documents are concurrently updated. SERVER-19996
Fixed performance issue where large amounts of create and drop collections can cause listDatabases to be slow under WiredTiger. SERVER-20961
Modified the authentication failure message to include the client IP address. SERVER-22054
All issues closed in 3.0.9
3.0.8 – Dec 15, 2015
Fixed issue where findAndModify on mongos can upsert to the wrong shard. SERVER-20407.
Fixed WiredTiger commit visibility issue which caused document not found. SERVER-21275.
Fixed issue where the oplog can grow to 3x configured size. SERVER-21553
All issues closed in 3.0.8
Changelog:
3.0.7 – Oct 13, 2015
Improvements to WiredTiger memory handling and performance: SERVER-20159, SERVER-20204, SERVER-20091, and SERVER-20176.
Fixed issue where replica set nodes will not step down: SERVER-19464.
Additional privileges for built-in roles: SERVER-19131, SERVER-15893, and SERVER-13647.
All issues closed in 3.0.7
- Improvements to WiredTiger Stability.
- Fixed issue with the interaction between SSL and Auditing.
- Fixed issue with aggregation $sort on sharded systems.
3.0.5 - July 28, 2015
- Improvements to WiredTiger for capped collections and replication
- Additional WiredTiger improvements for performance and improvements
related to cache and session use
- Performance improvements for longer running queries, particularly
$text and $near queries SERVER-18926.
Changelog:
MongoDB 3.0.4 is released
June 6, 2015
MongoDB 3.0.4 is out and is ready for production deployment. This release contains only fixes since 3.0.3, and is a recommended upgrade for all 3.0 users.
Fixed in this release:
SERVER-17923 Creating/dropping multiple background indexes on the same collection can cause fatal error on secondaries
SERVER-18079 Large performance drop with documents > 16k on Windows
SERVER-18190 Secondary reads block replication
SERVER-18213 Lots of WriteConflict during multi-upsert with WiredTiger storage engine
SERVER-18316 Database with WT engine fails to recover after system crash
SERVER-18475 authSchemaUpgrade fails when the system.users contains non MONGODB-CR users
SERVER-18629 WiredTiger journal system syncs wrong directory
SERVER-18822 Sharded clusters with WiredTiger primaries may lose writes during chunk migration
Announcing MongoDB 3.0 and Bug Hunt Winners
March 3, 2015
Today MongoDB 3.0 is generally available; you can download now.
Our community was critical to ensuring the quality of the release. Thank you to everyone who participated in our 3.0 Bug Hunt. From the submissions, we've selected winners based on the user impact and severity of the bugs found.
First Prize
Mark Callaghan, Member of Technical Staff, Facebook
During the 3.0 release cycle, Mark submitted 10 bug reports and collaborated closely with the MongoDB engineering team to debug the issues he uncovered. As a first place winner, Mark will receive a free pass to MongoDB World in New York City on June 1-2, including a front row seat to the keynote sessions. Mark was also eligible to receive a $1,000 Amazon gift card but opted to donate the award to a charity. We are donating $1,000 to CodeStarters.org in his name.
Honorable Mentions
Nick Judson, Conevity
Nick submitted SERVER-17299, uncovering excessive memory allocation on Windows when using "snappy" compression in WiredTiger.
Koshelyaev Konstantin, RTEC
Koshelyaev submitted SERVER-16664, which uncovered a memory overflow in WiredTiger when using "zlib" compression.
Tim Callaghan, Crunchtime!
In submitting SERVER-16867, Tim found an uncaught WriteConflict exception affecting replicated writes during insert-heavy workloads.
Nathan Arthur, PreEmptive Solutions
Nathan submitted SERVER-16724, which found an issue with how collection metadata is persisted.
Thijs Cadier, AppSignal
Thijs submitted SERVER-16197, which revealed a bug in the build system interaction with the new MongoDB tools.
Nick, Koshelyaev, Tim, Nathan, and Thijs will also receive tickets to MongoDB World in New York City on June 1-2 (with reserved front-row seat for keynote sessions), $250 Amazon Gift Cards, and MongoDB t-shirts.
Congratulations to the winners and thanks to everyone who downloaded, tested and gave feedback on the release candidates.
Packged by jafour1 and updated by some users.
Mongo (from "humongous") is a high-performance, open source, schema-free,
document-oriented database. It features: document data model with dynamic
schemas; full, flexible index support and rich queries; auto-Sharding for
horizontal scalability; built-in replication for high availability; text
search; advanced security; aggregation Framework and MapReduce; large media
storage with GridFS.
