219 lines
8.5 KiB
Markdown
219 lines
8.5 KiB
Markdown
## RabbitMQ 3.6.3
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RabbitMQ `3.6.3` is a maintenance release that includes
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bug fixes, packaging and build system enhancements.
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As of `3.6.3`, RabbitMQ also comes with several additional plugins in the distribution:
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* [rabbitmq_top](http://github.com/rabbitmq/rabbitmq-top), which helps identify (Erlang) processes
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that consume most RAM and CPU resources
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* [rabbitmq_trust_store](https://github.com/rabbitmq/rabbitmq-trust-store) which manages
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trusted client x509/TLS certificates
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* [rabbitmq_jms_topic_exchange](https://github.com/rabbitmq/rabbitmq-jms-topic-exchange/) which, together with [RabbitMQ JMS Java client](https://github.com/rabbitmq/rabbitmq-jms-client), provides support for the JMS 1.1 API
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atop RabbitMQ.
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### Breaking Changes
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* Debian package now [supports systemd and also drops support for some older distributions](https://groups.google.com/forum/#!topic/rabbitmq-users/orFuEYExcxk).
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* All artifacts in this release are signed with a [new 4096-bit OpenGPG key](https://groups.google.com/forum/#!msg/rabbitmq-users/BO5cmEsdEhc/Jupz1_Q4AwAJ).
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### Known Issues on Erlang 19.0
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An undocumented runtime metric change in Erlang 19.0 [breaks management plugin](https://github.com/rabbitmq/rabbitmq-management/issues/244).
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### Server
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#### Bug Fixes
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* (Newly elected) queue leader process could terminate immediately after promotion
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GitHub issue: [rabbitmq-server#812](https://github.com/rabbitmq/rabbitmq-server/issues/812)
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* Priority queue mirror could fail to synchronize after restart
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GitHub issues: [rabbitmq-server#687](https://github.com/rabbitmq/rabbitmq-server/issues/687), [rabbitmq-server#802](https://github.com/rabbitmq/rabbitmq-server/issues/802)
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* Shutdown timeouts for worker processes are now much more reasonable.
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Earlier the timeouts were virtually infinite which could lead to a deadlock during node shutdown.
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GitHub issue: [rabbitmq-server#541](https://github.com/rabbitmq/rabbitmq-server/issues/541)
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* Purging of a durable queue could result in undelivered publisher confirms.
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Contributed by Andreas Ländle.
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GitHub issue: [rabbitmq-server#854](https://github.com/rabbitmq/rabbitmq-server/issues/854)
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* Old incarnations of queue mirrors are now ensured to be stopped before new ones are started
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GitHub issue: [rabbitmq-server#863](https://github.com/rabbitmq/rabbitmq-server/issues/863)
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#### Enhancements
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* `systemd` support in Debian and RPM packages
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Contributed by Alexey Lebedeff (Mirantis).
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GitHub issue: [rabbitmq-server#570](https://github.com/rabbitmq/rabbitmq-server/issues/570)
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* Debian repository and release artifacts are now signed with a [new 4096-bit OpenGPG key](https://groups.google.com/forum/#!msg/rabbitmq-users/BO5cmEsdEhc/Jupz1_Q4AwAJ)
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GitHub issue: [rabbitmq-server#718](https://github.com/rabbitmq/rabbitmq-server/issues/718)
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* More resilient `worker_pool`, particularly important for LDAP plugin users
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GitHub issue: [rabbitmq-server#834](https://github.com/rabbitmq/rabbitmq-server/issues/834)
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* More efficient file handle management
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GitHub issue: [rabbitmq-server#828](https://github.com/rabbitmq/rabbitmq-server/issues/828)
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* Test suite ported to Common Test
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Plugin developers will be encouraged to port their test suites to Common Test
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in the future.
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GitHub issue: [rabbitmq-server#725](https://github.com/rabbitmq/rabbitmq-server/issues/725)
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* Compilation on [Erlang/OTP 19.0](http://erlang.org/download/otp_src_19.0.readme).
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GitHub issue: [rabbitmq-server#860](https://github.com/rabbitmq/rabbitmq-server/issues/860)
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### Management Plugin
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#### Enhancements
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* New API endpoint for reporting ETS tables memory consumption (absolute and relative)
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GitHub issue: [rabbitmq-management#219](https://github.com/rabbitmq/rabbitmq-management/issues/219)
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* Node information page now includes GC and context switching stats
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GitHub issue: [rabbitmq-management#208](https://github.com/rabbitmq/rabbitmq-management/issues/208)
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* Connection, channel, and queue information pages now include several runtime metrics
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GitHub issues: [rabbitmq-management#209](https://github.com/rabbitmq/rabbitmq-management/issues/209), [rabbitmq-management#210](https://github.com/rabbitmq/rabbitmq-management/issues/210), [rabbitmq-management#211](https://github.com/rabbitmq/rabbitmq-management/issues/211)
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* Node metrics now include information about how long it takes to obtain a file handle
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GitHub issue: [rabbitmq-server#825](https://github.com/rabbitmq/rabbitmq-server/issues/825)
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* Partial HTTPS support in `rabbitmqadmin` on Python versions older than `2.7.9`
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GitHub issue: [rabbitmq-management#225](https://github.com/rabbitmq/rabbitmq-management/issues/225)
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#### Bug Fixes
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* A channel statistics-related memory leak fixed.
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GitHub issue: [rabbitmq-management#214](https://github.com/rabbitmq/rabbitmq-management/issues/214)
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* Stats collectors event queue is now bounded (again)
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GitHub issue: [rabbitmq-management#221](https://github.com/rabbitmq/rabbitmq-management/issues/221)
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* Stats table name was logged as a tuple
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GitHub issue: [rabbitmq-management#206](https://github.com/rabbitmq/rabbitmq-management/issues/206)
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### .NET Client
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#### Bug Fixes
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* Setting user-provided connection name didn't have an effect.
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GitHub issue: [rabbitmq-dotnet-client#187](https://github.com/rabbitmq/rabbitmq-dotnet-client/issues/187)
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* `IConnection#CreateModel` could throw a `NullPointerException` due to a race
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condition.
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GitHub issue: [rabbitmq-dotnet-client#185](https://github.com/rabbitmq/rabbitmq-dotnet-client/issues/185)
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* Connections with automatic recovery enabled ignored ports from the hostname
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list.
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GitHub issues: [rabbitmq-dotnet-client#157](https://github.com/rabbitmq/rabbitmq-dotnet-client/issues/157),
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[rabbitmq-dotnet-client#190](https://github.com/rabbitmq/rabbitmq-dotnet-client/pull/190)
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* Fixes an underflow in delivery tag handling after connection recovery
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Contributed by @harishvadali and @Entroper.
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GitHub issue: [rabbitmq-dotnet-client#200](https://github.com/rabbitmq/rabbitmq-dotnet-client/issues/200)
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#### Enhancements
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* New [FAKE](https://fsharp.github.io/FAKE/) and [Paket](https://fsprojects.github.io/Paket/)-based build tooling: development on OS X and Linux with Mono is now
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possible again.
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GitHub issue: [rabbitmq-dotnet-client#169](https://github.com/rabbitmq/rabbitmq-dotnet-client/issues/169)
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### LDAP Plugin
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#### Enhancements
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* Nested groups are now supported with a separate query type
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GitHub issue: [rabbitmq-auth-backend-ldap#3](https://github.com/rabbitmq/rabbitmq-auth-backend-ldap/issues/3)
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#### Bug Fixes
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* Query failures (e.g. `noSuchObject` responses) from LDAP servers are now correctly treated as `false` in
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`or` and `and` queries instead of erroring.
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GitHub issue: [rabbitmq-auth-backend-ldap#48](https://github.com/rabbitmq/rabbitmq-auth-backend-ldap/issues/48)
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### Trust Store Plugin
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#### Bug Fixes
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* Invalid/unparseable certificates no longer prevent other certificates from (re)loading
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GitHub issue: [rabbitmq-trust-store#27](https://github.com/rabbitmq/rabbitmq-trust-store/issues/27)
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#### Enhancements
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* Certificate verification now can validate only leaf certificates.
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This is more convenient in some cases. It will be one of the opt-in modes
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in future versions.
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GitHub issue: [rabbitmq-trust-store#34](https://github.com/rabbitmq/rabbitmq-trust-store/issues/34)
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* The plugin now logs when a certificate is added (loaded) or removed (unloaded)
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GitHub issue: [rabbitmq-trust-store#28](https://github.com/rabbitmq/rabbitmq-trust-store/issues/28)
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* The plugin now provides a function for listing trust store certificates
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via `rabbitmqctl eval`: `rabbitmqctl eval 'io:format(rabbit_trust_store:list()).'`
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GitHub issue: [rabbitmq-trust-store#31](https://github.com/rabbitmq/rabbitmq-trust-store/issues/31)
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### Erlang Client
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#### Enhancements
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* `amqp_connection:close/4` is now exported
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GitHub issue: [rabbitmq-erlang-client#59](https://github.com/rabbitmq/rabbitmq-erlang-client/issues/59)
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#### Bug Fixes
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* The client now compiles on Erlang/OTP 19.0
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GitHub issue: [rabbitmq-erlang-client#41](https://github.com/rabbitmq/rabbitmq-erlang-client/issues/41)
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### Delayed Message Exchange Plugin
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#### Enhacements
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* Efficiency improvements when publications and delayed delivery happen concurrently.
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Contributed by Richard Larocque.
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GitHub issues: [rabbitmq-delayed-message-exchange#51](https://github.com/rabbitmq/rabbitmq-delayed-message-exchange/pull/51), [rabbitmq-delayed-message-exchange#54](https://github.com/rabbitmq/rabbitmq-delayed-message-exchange/pull/54)
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