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RabbitMQ 3.5.7.RC1 发布,AMQP 消息服务器

RabbitMQ 3.5.7.RC1 发布,此版本是 RabbitMQ 3.5.7 的候选版本,也是个 bug 修复版本。

更新内容

服务器

Bug 修复

  • file_handle_cache:clear_read_cache/0 no longer silently fails.

    The function is mean to be used with rabbitmqctl eval in environments where
    in-process buffering of file data is enabled.

    GitHub issue: rabbitmq-server#436

  • Default RABBITMQ_PLUGINS_DIR value on Windows should be calculated as relative to RabbitMQ
    server installation directory, not RABBITMQ_BASE.

    If you override RABBITMQ_BASE, you may need to copy plugins from %RABBITMQ_BASE%\plugins
    to the plugins directory under RabbitMQ installation.

    GitHub issue: rabbitmq-server#433

  • Overriding RABBITMQ_LOGS and RABBITMQ_SASL_LOGS on Windows prevented node from starting.

    GitHub issue: rabbitmq-server#375

  • Some startup code bits assumed IPv4 is enabled in the environment

    GitHub issue: rabbitmq-server#117

  • More robust disk monitor, fewer errors logged.

    GitHub issue: rabbitmq-server#91

改进

  • RAM watermark can be configured as an absolute value in bytes (just like with disk space monitoring):

    [{rabbit, [{vm_memory_high_watermark, {absolute, 1073741824}}]}].

    GitHub issue: rabbitmq-server#207

  • rabbitmqctl authenticate_user is a new command that can be used to test user authentication.

    GitHub issue: rabbitmq-server#119

  • rabbitmqctl now supports exclusive as a queue info item.

    Contributed by Alexey Lebedeff (@binarin).

    GitHub issue: rabbitmq-server#371

Java 客户端

Bug 修复

  • AutorecoveringChannel#basicCancel could throw a NullPointerException.

    GitHub issue: rabbitmq-java-client#105

.NET 客户端

Bug 修复

  • IConnection.Dispose could throw an exception.

    GitHub issue: rabbitmq-dotnet-client#133

MQTT 插件

Bug 修复

  • Auto-deletion of queues that back QoS 1 subscriptions is again controlled
    by the clean session flag.

    GitHub issues: rabbitmq-mqtt#30 (original report which introduced the issue), rabbitmq-mqtt#37 (clarification and fix)

STOMP 插件

改进

  • Queue names now can be set explicitly using the x-queue-name header, for all
    destination types.

    GitHub issue: rabbitmq-stomp#43

Management 插件

Bug 修复

  • Management plugin could prevent a node from starting when it recovers after a network split.

    GitHub issue: rabbitmq-management#81

  • 401 responses correctly set content type to application/json

    GitHub issue: rabbitmq-management#67

  • Consumer utilisation is correctly reported as a number instead of "" when it equals 0.

    GitHub issue: rabbitmq-management#26

  • rabbitmqadmin misinterpreted boolean settings in config as strings

    GitHub issue: rabbitmq-management#20

下载:https://github.com/rabbitmq/rabbitmq-server/archive/rabbitmq_v3_5_7_rc1.zip。

RabbitMQ 是由 LShift 提供的一个 Advanced Message Queuing Protocol (AMQP) 的开源实现,由以高性能、健壮以及可伸缩性出名的 Erlang 写成,因此也是继承了这些优点。

AMQP 里主要要说两个组件:Exchange 和 Queue (在 AMQP 1.0 里还会有变动),如下图所示,绿色的 X 就是
Exchange ,红色的是 Queue ,这两者都在 Server 端,又称作 Broker ,这部分是 RabbitMQ
实现的,而蓝色的则是客户端,通常有 Producer 和 Consumer 两种类型:

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