RabbitMQ 3.5.7 是一个可用的 bug 修复版本，主要更新如下： 服务器 Bug 修复 Fix a race condition that could prevent nodes from stopping. GitHub issue: rabbitmq-server#465 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 When rabbitmq-server failed to start due to an unreadable config file, exit code was 0 GitHub issue: rabbitmq-server#464 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 rabbitmqctl forget_cluster_node no longer attempts to impersonate live (reachable) nodes. GitHub issue: rabbitmq-server#470 rabbitmq-plugins was using an incorrect env variable. GitHub issue: rabbitmq-server#451 提升 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 下载页面：rabbitmq_v3_5_7 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： RabbitMQ 3.5.7 发布，AMQP 消息服务器下载地址
