本次记录安装RabbitMQ的过程，只针对MAC下单机版安装、单机集群安装方法以及配置haproxy负载均衡。

  • RabbitMQ单机版本安装
消息发送原理：

应用程序和Rabbit Server之间会创建一个TCP连接，一旦TCP打开，并通过了认证，认证就是你试图连接Rabbit之前发送的Rabbit服务器连接信息和用户名和密码，有点像程序连接数据库，使用Java有两种连接认证的方式，后面代码会详细介绍，一旦认证通过你的应用程序和Rabbit就创建了一条AMQP信道（Channel）。

信道是创建在“真实”TCP上的虚拟连接，AMQP命令都是通过信道发送出去的，每个信道都会有一个唯一的ID，不论是发布消息，订阅队列或者介绍消息都是通过信道完成的。

为什么不通过TCP直接发送命令？

对于操作系统来说创建和销毁TCP会话是非常昂贵的开销，假设高峰期每秒有成千上万条连接，每个连接都要创建一条TCP会话，这就造成了TCP连接的巨大浪费，而且操作系统每秒能创建的TCP也是有限的，因此很快就会遇到系统瓶颈。

如果我们每个请求都使用一条TCP连接，既满足了性能的需要，又能确保每个连接的私密性，这就是引入信道概念的原因。

RabbitMQ基础概念：
ConnectionFactory（连接管理器）、Channel（信道）、Exchange（交换器）、Queue（队列）、RoutingKey（路由键）、BindingKey（绑定键）。
  • ConnectionFactory（连接管理器）：应用程序与Rabbit之间建立连接的管理器，程序代码中使用；
  • Channel（信道）：消息推送使用的通道；
  • Exchange（交换器）：用于接受、分配消息；
  • Queue（队列）：用于存储生产者的消息；
  • RoutingKey（路由键）：用于把生成者的数据分配到交换器上；
  • BindingKey（绑定键）：用于把交换器的消息绑定到队列上；

MAC下配置 brew  命令行： brew install rabbitmq 会帮助安装依赖的各个环境， 如Erlang等， 方便安装和卸载。

基础命令：

启动 ： ./rabbitmq-server -detached (后台启动)

查看状态：./rabbitmqctl status

查看web管理界面：http://localhost:15672/#/

停止：./rabbitmqctl stop

命令结果集：

zhouguangfengdeMacBook-Pro:sbin feng$ ls

cuttlefish        rabbitmq-defaults    rabbitmq-diagnostics    rabbitmq-env        rabbitmq-plugins    rabbitmq-server        rabbitmqadmin        rabbitmqctl

zhouguangfengdeMacBook-Pro:sbin feng$ ./rabbitmq-server -detached

Warning: PID file not written; -detached was passed.

zhouguangfengdeMacBook-Pro:sbin feng$ ./rabbitmqctl status

Status of node rabbit@localhost ...

[{pid,16051},

 {running_applications,

     [{rabbitmq_management,"RabbitMQ Management Console","3.7.5"},

      {rabbitmq_management_agent,"RabbitMQ Management Agent","3.7.5"},

      {rabbitmq_mqtt,"RabbitMQ MQTT Adapter","3.7.5"},

      {rabbitmq_stomp,"RabbitMQ STOMP plugin","3.7.5"},

      {rabbitmq_amqp1_0,"AMQP 1.0 support for RabbitMQ","3.7.5"},

      {amqp_client,"RabbitMQ AMQP Client","3.7.5"},

      {rabbitmq_web_dispatch,"RabbitMQ Web Dispatcher","3.7.5"},

      {rabbit,"RabbitMQ","3.7.5"},

      {rabbit_common,

          "Modules shared by rabbitmq-server and rabbitmq-erlang-client",

          "3.7.5"},

      {ranch_proxy_protocol,"Ranch Proxy Protocol Transport","1.5.0"},

      {cowboy,"Small, fast, modern HTTP server.","2.2.2"},

      {ranch,"Socket acceptor pool for TCP protocols.","1.5.0"},

      {ssl,"Erlang/OTP SSL application","8.2.6"},

      {public_key,"Public key infrastructure","1.5.2"},

      {asn1,"The Erlang ASN1 compiler version 5.0.5","5.0.5"},

      {recon,"Diagnostic tools for production use","2.3.2"},

      {jsx,"a streaming, evented json parsing toolkit","2.8.2"},

      {cowlib,"Support library for manipulating Web protocols.","2.1.0"},

      {os_mon,"CPO  CXC 138 46","2.4.4"},

      {xmerl,"XML parser","1.3.16"},

      {crypto,"CRYPTO","4.2.2"},

      {sasl,"SASL  CXC 138 11","3.1.2"},

      {amqp10_common,

          "Modules shared by rabbitmq-amqp1.0 and rabbitmq-amqp1.0-client",

          "3.7.5"},

      {inets,"INETS  CXC 138 49","6.5.1"},

      {mnesia,"MNESIA  CXC 138 12","4.15.3"},

      {lager,"Erlang logging framework","3.5.1"},

      {goldrush,"Erlang event stream processor","0.1.9"},

      {compiler,"ERTS  CXC 138 10","7.1.5"},

      {syntax_tools,"Syntax tools","2.1.4"},

      {stdlib,"ERTS  CXC 138 10","3.4.5"},

      {kernel,"ERTS  CXC 138 10","5.4.3"}]},

 {os,{unix,darwin}},

 {erlang_version,

     "Erlang/OTP 20 [erts-9.3.1] [source] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:64] [hipe] [kernel-poll:true] [dtrace]\n"},

 {memory,

     [{connection_readers,0},

      {connection_writers,0},

      {connection_channels,0},

      {connection_other,32472},

      {queue_procs,67296},

      {queue_slave_procs,0},

      {plugins,2195128},

      {other_proc,27648040},

      {metrics,203960},

      {mgmt_db,294896},

      {mnesia,84800},

      {other_ets,2473304},

      {binary,209024},

      {msg_index,30064},

      {code,29314811},

      {atom,1131721},

      {other_system,14138316},

      {allocated_unused,17768616},

      {reserved_unallocated,0},

      {strategy,rss},

      {total,[{erlang,77823832},{rss,90247168},{allocated,95592448}]}]},

 {alarms,[]},

 {listeners,

     [{clustering,25672,"::"},

      {amqp,5672,"127.0.0.1"},

      {stomp,61613,"::"},

      {mqtt,1883,"::"},

      {http,15672,"::"}]},

 {vm_memory_calculation_strategy,rss},

 {vm_memory_high_watermark,0.4},

 {vm_memory_limit,3435973836},

 {disk_free_limit,50000000},

 {disk_free,168907264000},

 {file_descriptors,

     [{total_limit,156},{total_used,4},{sockets_limit,138},{sockets_used,0}]},

 {processes,[{limit,1048576},{used,413}]},

 {run_queue,0},

 {uptime,75},

 {kernel,{net_ticktime,60}}]

zhouguangfengdeMacBook-Pro:sbin feng$ ./rabbitmqctl stop

Stopping and halting node rabbit@localhost ...

zhouguangfengdeMacBook-Pro:sbin feng$

RabbitMQ默认Port Access：参考http://www.rabbitmq.com/clustering.html#selinux-ports

http: RabbitMQ默认web管理界面端口

amqp：RabbitMQ默认客户端通信端口

  • RabbitMQ单机集群安装（适合开发练习）

由于在一个机器启动多个服务，会存在端口冲突问题，启动的时候需要设置不同的端口和节点名称。这里启动三个节点（rabbit_node_one、rabbit_node_two、rabbit_node_three）组合一个集群。

1、分别启动三个节点：

rabbit_node_one: 使用默认端口

RABBITMQ_NODE_PORT=5672 RABBITMQ_NODENAME=rabbit_node_one ./rabbitmq-server -detached

 rabbit_node_two:

RABBITMQ_NODE_PORT=5673 RABBITMQ_SERVER_START_ARGS="-rabbitmq_management listener [{port,15673}] -rabbitmq_stomp tcp_listeners [61614] -rabbitmq_mqtt tcp_listeners [1884]" RABBITMQ_NODENAME=rabbit_node_two ./rabbitmq-server -detached

rabbit_node_three:
RABBITMQ_NODE_PORT=5674 RABBITMQ_SERVER_START_ARGS="-rabbitmq_management listener [{port,15674}] -rabbitmq_stomp tcp_listeners [61615] -rabbitmq_mqtt tcp_listeners [1885]" RABBITMQ_NODENAME=rabbit_node_three ./rabbitmq-server -detached

2、集群配置: rabbit_node_one 为主节点

配置rabbit_node_two 为持久化节点 从节点：

./rabbitmqctl -n rabbit_node_two stop_app
./rabbitmqctl -n rabbit_node_two reset
./rabbitmqctl -n rabbit_node_two join_cluster rabbit_node_one
./rabbitmqctl -n rabbit_node_two start_app

rabbit_node_three 为内存节点 从节点：：
./rabbitmqctl -n rabbit_node_three stop_app
./rabbitmqctl -n rabbit_node_three reset
./rabbitmqctl -n rabbit_node_three join_cluster rabbit_node_one --ram
./rabbitmqctl -n rabbit_node_three start_app

查询集群状态：
./rabbitmqctl cluster_status -n rabbit_node_one

命令结果集：

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ RABBITMQ_NODE_PORT=5672 RABBITMQ_NODENAME=rabbit_node_one ./rabbitmq-server -detached

Warning: PID file not written; -detached was passed.

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ RABBITMQ_NODE_PORT=5673 RABBITMQ_SERVER_START_ARGS="-rabbitmq_management listener [{port,15673}] -rabbitmq_stomp tcp_listeners [61614] -rabbitmq_mqtt tcp_listeners [1884]" RABBITMQ_NODENAME=rabbit_node_two ./rabbitmq-server -detached

Warning: PID file not written; -detached was passed.

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ RABBITMQ_NODE_PORT=5674 RABBITMQ_SERVER_START_ARGS="-rabbitmq_management listener [{port,15674}] -rabbitmq_stomp tcp_listeners [61615] -rabbitmq_mqtt tcp_listeners [1885]" RABBITMQ_NODENAME=rabbit_node_three ./rabbitmq-server -detached

Warning: PID file not written; -detached was passed.

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ps aux | grep rabbitmq

zhouguangfeng    22499   0.1  0.9  5981744  79132   ??  S    10:42上午   0:04.65 /usr/local/Cellar/erlang/20.3.6/lib/erlang/erts-9.3.1/bin/beam.smp -W w -A 64 -P 1048576 -t 5000000 -stbt db -zdbbl 1280000 -K true -- -root /usr/local/Cellar/erlang/20.3.6/lib/erlang -progname erl -- -home /Users/zhouguangfeng -- -pa /usr/local/Cellar/rabbitmq/3.7.5/ebin -noshell -noinput -s rabbit boot -sname rabbit_node_three -boot /usr/local/opt/erlang/lib/erlang/bin/start_clean -kernel inet_default_connect_options [{nodelay,true}] -rabbit tcp_listeners [{"127.0.0.1",5674}] -sasl errlog_type error -sasl sasl_error_logger false -rabbit lager_log_root "/usr/local/var/log/rabbitmq" -rabbit lager_default_file "/usr/local/var/log/rabbitmq/rabbit_node_three.log" -rabbit lager_upgrade_file "/usr/local/var/log/rabbitmq/rabbit_node_three_upgrade.log" -rabbit enabled_plugins_file "/usr/local/etc/rabbitmq/enabled_plugins" -rabbit plugins_dir "/usr/local/Cellar/rabbitmq/3.7.5/plugins" -rabbit plugins_expand_dir "/usr/local/var/lib/rabbitmq/mnesia/rabbit_node_three-plugins-expand" -os_mon start_cpu_sup false -os_mon start_disksup false -os_mon start_memsup false -mnesia dir "/usr/local/var/lib/rabbitmq/mnesia/rabbit_node_three" -rabbitmq_management listener [{port,15674}] -rabbitmq_stomp tcp_listeners [61615] -rabbitmq_mqtt tcp_listeners [1885] -kernel inet_dist_listen_min 25674 -kernel inet_dist_listen_max 25674 -noshell -noinput

zhouguangfeng    22167   0.0  0.9  5978272  79400   ??  S    10:42上午   0:05.36 /usr/local/Cellar/erlang/20.3.6/lib/erlang/erts-9.3.1/bin/beam.smp -W w -A 64 -P 1048576 -t 5000000 -stbt db -zdbbl 1280000 -K true -- -root /usr/local/Cellar/erlang/20.3.6/lib/erlang -progname erl -- -home /Users/zhouguangfeng -- -pa /usr/local/Cellar/rabbitmq/3.7.5/ebin -noshell -noinput -s rabbit boot -sname rabbit_node_one -boot /usr/local/opt/erlang/lib/erlang/bin/start_clean -kernel inet_default_connect_options [{nodelay,true}] -rabbit tcp_listeners [{"127.0.0.1",5672}] -sasl errlog_type error -sasl sasl_error_logger false -rabbit lager_log_root "/usr/local/var/log/rabbitmq" -rabbit lager_default_file "/usr/local/var/log/rabbitmq/rabbit_node_one.log" -rabbit lager_upgrade_file "/usr/local/var/log/rabbitmq/rabbit_node_one_upgrade.log" -rabbit enabled_plugins_file "/usr/local/etc/rabbitmq/enabled_plugins" -rabbit plugins_dir "/usr/local/Cellar/rabbitmq/3.7.5/plugins" -rabbit plugins_expand_dir "/usr/local/var/lib/rabbitmq/mnesia/rabbit_node_one-plugins-expand" -os_mon start_cpu_sup false -os_mon start_disksup false -os_mon start_memsup false -mnesia dir "/usr/local/var/lib/rabbitmq/mnesia/rabbit_node_one" -kernel inet_dist_listen_min 25672 -kernel inet_dist_listen_max 25672 -noshell -noinput

zhouguangfeng    22719   0.0  0.0  4295984    528 s001  U+   10:42上午   0:00.00 grep rabbitmq

zhouguangfeng    22315   0.0  1.0  5974940  79984   ??  S    10:42上午   0:05.42 /usr/local/Cellar/erlang/20.3.6/lib/erlang/erts-9.3.1/bin/beam.smp -W w -A 64 -P 1048576 -t 5000000 -stbt db -zdbbl 1280000 -K true -- -root /usr/local/Cellar/erlang/20.3.6/lib/erlang -progname erl -- -home /Users/zhouguangfeng -- -pa /usr/local/Cellar/rabbitmq/3.7.5/ebin -noshell -noinput -s rabbit boot -sname rabbit_node_two -boot /usr/local/opt/erlang/lib/erlang/bin/start_clean -kernel inet_default_connect_options [{nodelay,true}] -rabbit tcp_listeners [{"127.0.0.1",5673}] -sasl errlog_type error -sasl sasl_error_logger false -rabbit lager_log_root "/usr/local/var/log/rabbitmq" -rabbit lager_default_file "/usr/local/var/log/rabbitmq/rabbit_node_two.log" -rabbit lager_upgrade_file "/usr/local/var/log/rabbitmq/rabbit_node_two_upgrade.log" -rabbit enabled_plugins_file "/usr/local/etc/rabbitmq/enabled_plugins" -rabbit plugins_dir "/usr/local/Cellar/rabbitmq/3.7.5/plugins" -rabbit plugins_expand_dir "/usr/local/var/lib/rabbitmq/mnesia/rabbit_node_two-plugins-expand" -os_mon start_cpu_sup false -os_mon start_disksup false -os_mon start_memsup false -mnesia dir "/usr/local/var/lib/rabbitmq/mnesia/rabbit_node_two" -rabbitmq_management listener [{port,15673}] -rabbitmq_stomp tcp_listeners [61614] -rabbitmq_mqtt tcp_listeners [1884] -kernel inet_dist_listen_min 25673 -kernel inet_dist_listen_max 25673 -noshell -noinput

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ./rabbitmqctl -n rabbit_node_two stop_app

Stopping rabbit application on node rabbit_node_two@zhouguangfengdeMacBook-Pro ...

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ./rabbitmqctl -n rabbit_node_two reset

Resetting node rabbit_node_two@zhouguangfengdeMacBook-Pro ...

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ./rabbitmqctl -n rabbit_node_two join_cluster rabbit_node_one

Clustering node rabbit_node_two@zhouguangfengdeMacBook-Pro with rabbit_node_one

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ./rabbitmqctl -n rabbit_node_two start_app

Starting node rabbit_node_two@zhouguangfengdeMacBook-Pro ...

 completed with 6 plugins.

Resetting node rabbit_node_three@zhouguangfengdeMacBook-Pro ...

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ./rabbitmqctl cluster_status -n rabbit_node_one

Cluster status of node rabbit_node_one@zhouguangfengdeMacBook-Pro ...

[{nodes,[{disc,['rabbit_node_one@zhouguangfengdeMacBook-Pro',

                'rabbit_node_two@zhouguangfengdeMacBook-Pro']}]},

 {running_nodes,['rabbit_node_two@zhouguangfengdeMacBook-Pro',

                 'rabbit_node_one@zhouguangfengdeMacBook-Pro']},

 {cluster_name,<<"rabbit_node_one@zhouguangfengdeMacBook-Pro">>},

 {partitions,[]},

 {alarms,[{'rabbit_node_two@zhouguangfengdeMacBook-Pro',[]},

          {'rabbit_node_one@zhouguangfengdeMacBook-Pro',[]}]}]

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ./rabbitmqctl -n rabbit_node_three reset

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ./rabbitmqctl -n rabbit_node_three join_cluster rabbit_node_one --ram

Clustering node rabbit_node_three@zhouguangfengdeMacBook-Pro with rabbit_node_one

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ./rabbitmqctl -n rabbit_node_three start_app

Starting node rabbit_node_three@zhouguangfengdeMacBook-Pro ...

 completed with 6 plugins.

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ./rabbitmqctl cluster_status -n rabbit_node_one

Cluster status of node rabbit_node_one@zhouguangfengdeMacBook-Pro ...

[{nodes,[{disc,['rabbit_node_one@zhouguangfengdeMacBook-Pro',

                'rabbit_node_two@zhouguangfengdeMacBook-Pro']},

         {ram,['rabbit_node_three@zhouguangfengdeMacBook-Pro']}]},

 {running_nodes,['rabbit_node_three@zhouguangfengdeMacBook-Pro',

                 'rabbit_node_two@zhouguangfengdeMacBook-Pro',

                 'rabbit_node_one@zhouguangfengdeMacBook-Pro']},

 {cluster_name,<<"rabbit_node_one@zhouguangfengdeMacBook-Pro">>},

 {partitions,[]},

 {alarms,[{'rabbit_node_three@zhouguangfengdeMacBook-Pro',[]},

          {'rabbit_node_two@zhouguangfengdeMacBook-Pro',[]},

          {'rabbit_node_one@zhouguangfengdeMacBook-Pro',[]}]}]

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$

访问web页面： http://localhost:15672/#/  http://localhost:15673/#/ http://localhost:15674/#/

可以看到集群中三个节点已经正常启动，rabbit_node_three 设置为RAM内存节点，其他为磁盘节点（Disk and RAM Nodes）。RabbitMQ要求在集群中至少有一个磁盘节点，所有其他节点可以是内存节点，当节点加入或者离开集群时，必须要将该变更通知到至少一个磁盘节点。如果集群中唯一的一个磁盘节点崩溃的话，集群仍然可以保持运行，但是无法进行其他操作（增删改查），直到节点恢复。

测试集群节点down掉情况：对rabbit_node_two 进行kill操作 和 恢复操作， 查询集群情况

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ./rabbitmqctl cluster_status -n rabbit_node_one

Cluster status of node rabbit_node_one@zhouguangfengdeMacBook-Pro ...

[{nodes,[{disc,['rabbit_node_one@zhouguangfengdeMacBook-Pro',

                'rabbit_node_two@zhouguangfengdeMacBook-Pro']},

         {ram,['rabbit_node_three@zhouguangfengdeMacBook-Pro']}]},

 {running_nodes,['rabbit_node_three@zhouguangfengdeMacBook-Pro',

                 'rabbit_node_two@zhouguangfengdeMacBook-Pro',

                 'rabbit_node_one@zhouguangfengdeMacBook-Pro']},

 {cluster_name,<<"rabbit_node_one@zhouguangfengdeMacBook-Pro">>},

 {partitions,[]},

 {alarms,[{'rabbit_node_three@zhouguangfengdeMacBook-Pro',[]},

          {'rabbit_node_two@zhouguangfengdeMacBook-Pro',[]},

          {'rabbit_node_one@zhouguangfengdeMacBook-Pro',[]}]}]

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ps aux | grep rabbitmq

zhouguangfeng    41776   0.0  0.0  4295984    536 s001  U+   11:05上午   0:00.00 grep rabbitmq

zhouguangfeng    22499   0.0  0.7  5988224  58552   ??  S    10:42上午   0:12.23 /usr/local/Cellar/erlang/20.3.6/lib/erlang/erts-9.3.1/bin/beam.smp -W w -A 64 -P 1048576 -t 5000000 -stbt db -zdbbl 1280000 -K true -- -root /usr/local/Cellar/erlang/20.3.6/lib/erlang -progname erl -- -home /Users/zhouguangfeng -- -pa /usr/local/Cellar/rabbitmq/3.7.5/ebin -noshell -noinput -s rabbit boot -sname rabbit_node_three -boot /usr/local/opt/erlang/lib/erlang/bin/start_clean -kernel inet_default_connect_options [{nodelay,true}] -rabbit tcp_listeners [{"127.0.0.1",5674}] -sasl errlog_type error -sasl sasl_error_logger false -rabbit lager_log_root "/usr/local/var/log/rabbitmq" -rabbit lager_default_file "/usr/local/var/log/rabbitmq/rabbit_node_three.log" -rabbit lager_upgrade_file "/usr/local/var/log/rabbitmq/rabbit_node_three_upgrade.log" -rabbit enabled_plugins_file "/usr/local/etc/rabbitmq/enabled_plugins" -rabbit plugins_dir "/usr/local/Cellar/rabbitmq/3.7.5/plugins" -rabbit plugins_expand_dir "/usr/local/var/lib/rabbitmq/mnesia/rabbit_node_three-plugins-expand" -os_mon start_cpu_sup false -os_mon start_disksup false -os_mon start_memsup false -mnesia dir "/usr/local/var/lib/rabbitmq/mnesia/rabbit_node_three" -rabbitmq_management listener [{port,15674}] -rabbitmq_stomp tcp_listeners [61615] -rabbitmq_mqtt tcp_listeners [1885] -kernel inet_dist_listen_min 25674 -kernel inet_dist_listen_max 25674 -noshell -noinput

zhouguangfeng    22315   0.0  0.7  5984200  61532   ??  S    10:42上午   0:15.88 /usr/local/Cellar/erlang/20.3.6/lib/erlang/erts-9.3.1/bin/beam.smp -W w -A 64 -P 1048576 -t 5000000 -stbt db -zdbbl 1280000 -K true -- -root /usr/local/Cellar/erlang/20.3.6/lib/erlang -progname erl -- -home /Users/zhouguangfeng -- -pa /usr/local/Cellar/rabbitmq/3.7.5/ebin -noshell -noinput -s rabbit boot -sname rabbit_node_two -boot /usr/local/opt/erlang/lib/erlang/bin/start_clean -kernel inet_default_connect_options [{nodelay,true}] -rabbit tcp_listeners [{"127.0.0.1",5673}] -sasl errlog_type error -sasl sasl_error_logger false -rabbit lager_log_root "/usr/local/var/log/rabbitmq" -rabbit lager_default_file "/usr/local/var/log/rabbitmq/rabbit_node_two.log" -rabbit lager_upgrade_file "/usr/local/var/log/rabbitmq/rabbit_node_two_upgrade.log" -rabbit enabled_plugins_file "/usr/local/etc/rabbitmq/enabled_plugins" -rabbit plugins_dir "/usr/local/Cellar/rabbitmq/3.7.5/plugins" -rabbit plugins_expand_dir "/usr/local/var/lib/rabbitmq/mnesia/rabbit_node_two-plugins-expand" -os_mon start_cpu_sup false -os_mon start_disksup false -os_mon start_memsup false -mnesia dir "/usr/local/var/lib/rabbitmq/mnesia/rabbit_node_two" -rabbitmq_management listener [{port,15673}] -rabbitmq_stomp tcp_listeners [61614] -rabbitmq_mqtt tcp_listeners [1884] -kernel inet_dist_listen_min 25673 -kernel inet_dist_listen_max 25673 -noshell -noinput

zhouguangfeng    22167   0.0  0.7  5984748  56532   ??  S    10:42上午   0:13.23 /usr/local/Cellar/erlang/20.3.6/lib/erlang/erts-9.3.1/bin/beam.smp -W w -A 64 -P 1048576 -t 5000000 -stbt db -zdbbl 1280000 -K true -- -root /usr/local/Cellar/erlang/20.3.6/lib/erlang -progname erl -- -home /Users/zhouguangfeng -- -pa /usr/local/Cellar/rabbitmq/3.7.5/ebin -noshell -noinput -s rabbit boot -sname rabbit_node_one -boot /usr/local/opt/erlang/lib/erlang/bin/start_clean -kernel inet_default_connect_options [{nodelay,true}] -rabbit tcp_listeners [{"127.0.0.1",5672}] -sasl errlog_type error -sasl sasl_error_logger false -rabbit lager_log_root "/usr/local/var/log/rabbitmq" -rabbit lager_default_file "/usr/local/var/log/rabbitmq/rabbit_node_one.log" -rabbit lager_upgrade_file "/usr/local/var/log/rabbitmq/rabbit_node_one_upgrade.log" -rabbit enabled_plugins_file "/usr/local/etc/rabbitmq/enabled_plugins" -rabbit plugins_dir "/usr/local/Cellar/rabbitmq/3.7.5/plugins" -rabbit plugins_expand_dir "/usr/local/var/lib/rabbitmq/mnesia/rabbit_node_one-plugins-expand" -os_mon start_cpu_sup false -os_mon start_disksup false -os_mon start_memsup false -mnesia dir "/usr/local/var/lib/rabbitmq/mnesia/rabbit_node_one" -kernel inet_dist_listen_min 25672 -kernel inet_dist_listen_max 25672 -noshell -noinput

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ kill -9 22315

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ./rabbitmqctl cluster_status -n rabbit_node_one

Cluster status of node rabbit_node_one@zhouguangfengdeMacBook-Pro ...

[{nodes,[{disc,['rabbit_node_one@zhouguangfengdeMacBook-Pro',

                'rabbit_node_two@zhouguangfengdeMacBook-Pro']},

         {ram,['rabbit_node_three@zhouguangfengdeMacBook-Pro']}]},

 {running_nodes,['rabbit_node_three@zhouguangfengdeMacBook-Pro',

                 'rabbit_node_one@zhouguangfengdeMacBook-Pro']},

 {cluster_name,<<"rabbit_node_one@zhouguangfengdeMacBook-Pro">>},

 {partitions,[]},

 {alarms,[{'rabbit_node_three@zhouguangfengdeMacBook-Pro',[]},

          {'rabbit_node_one@zhouguangfengdeMacBook-Pro',[]}]}]

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ./rabbitmqctl -n rabbit_node_two start_app

Starting node rabbit_node_three@zhouguangfengdeMacBook-Pro ...

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ./rabbitmqctl cluster_status -n rabbit_node_one

Cluster status of node rabbit_node_one@zhouguangfengdeMacBook-Pro ...

[{nodes,[{disc,['rabbit_node_one@zhouguangfengdeMacBook-Pro',

                'rabbit_node_two@zhouguangfengdeMacBook-Pro']},

         {ram,['rabbit_node_three@zhouguangfengdeMacBook-Pro']}]},

 {running_nodes,['rabbit_node_three@zhouguangfengdeMacBook-Pro',

                 'rabbit_node_two@zhouguangfengdeMacBook-Pro','rabbit_node_one@zhouguangfengdeMacBook-Pro']},

 {cluster_name,<<"rabbit_node_one@zhouguangfengdeMacBook-Pro">>},

 {partitions,[]},

 {alarms,[{'rabbit_node_three@zhouguangfengdeMacBook-Pro',[]},

          {'rabbit_node_one@zhouguangfengdeMacBook-Pro',[]}]}]

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$

可以看到rabbit_node_two节点down之后，集群正常工作。 当节点恢复之后，主动加入集群。

  • RabbitMQ配置haproxy负载均衡

1、配置RabbitMQ镜像功能

使用Rabbit镜像功能，需要基于RabbitMQ策略来实现，策略是用来控制和修改群集范围的某个vhost队列行为和Exchange行为

zhouguangfengdeMacBook-Pro:~ zhouguangfeng$ cd /usr/local/Cellar/rabbitmq/3.7.5/sbin/

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ls

cuttlefish        rabbitmq-diagnostics    rabbitmq-plugins    rabbitmqadmin        run.sh

rabbitmq-defaults    rabbitmq-env        rabbitmq-server        rabbitmqctl

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$ ./rabbitmqctl set_policy -p hrsystem ha-allqueue "^" '{"ha-mode":"all"}' -n rabbit_node_one

Setting policy "ha-allqueue" for pattern "^" to "{"ha-mode":"all"}" with priority "0" for vhost "hrsystem" ...

zhouguangfengdeMacBook-Pro:sbin zhouguangfeng$

这行命令创建一个名称为hrsystem的vhost，策略名称为ha-allqueue,策略模式为 all 即复制到所有节点，包含新增节点，策略正则表达式为 “^” 表示所有匹配所有队列名称。

详情参考：http://www.rabbitmq.com/ha.html

2、安装haproxy，使用mac下安装工具brew ： brew install haproxy 

查看安装版本和目录：

zhouguangfengdeMacBook-Pro:/ zhouguangfeng$ haproxy -version

HA-Proxy version 1.8.12-8a200c7 2018/06/27

Copyright 2000-2018 Willy Tarreau <willy@haproxy.org>

zhouguangfengdeMacBook-Pro:/ zhouguangfeng$ cd /usr/local/Cellar/haproxy/1.8.12/

.brew/                       INSTALL_RECEIPT.json         README                       homebrew.mxcl.haproxy.plist

CHANGELOG                    LICENSE                      bin/                         share/

zhouguangfengdeMacBook-Pro:/ zhouguangfeng$ cd /usr/local/Cellar/haproxy/1.8.12/bin/

zhouguangfengdeMacBook-Pro:bin zhouguangfeng$ ls

haproxy    run.sh

zhouguangfengdeMacBook-Pro:bin zhouguangfeng$

配置haproxy.cfg 并启动：

zhouguangfengdeMacBook-Pro:bin zhouguangfeng$ cd /usr/local/etc/

zhouguangfengdeMacBook-Pro:bin zhouguangfeng$ mkdir haproxy

zhouguangfengdeMacBook-Pro:bin zhouguangfeng$ cd haproxy/

zhouguangfengdeMacBook-Pro:haproxy zhouguangfeng$ vim haproxy.cfg  -- 内容如下

haproxy.cfg

zhouguangfengdeMacBook-Pro:haproxy zhouguangfeng$ cat haproxy.cfg 

global

    log 127.0.0.1   local0 # 日志

    daemon      # 后台运行

    maxconn 256 # 最大连接数

defaults

    mode http    # 默认的模式mode { tcp|http|health }，tcp是4层，http是7层，health只会返回OK

    stats enable

    stats uri /haproxy-stats

    stats refresh 10s

    monitor-uri /haproxy-test

    balance roundrobin

    option httpclose  # 每次请求完毕后主动关闭http通道

    option forwardfor # 如果后端服务器需要获得客户端真实ip需要配置的参数，可以从Http Header中获得客户端ip

    timeout connect 5000ms # 连接超时时间

    timeout client 50000ms # 客户端连接超时时间

    timeout server 50000ms # 服务器端连接超时时间

####################################################################

# listen http_front

        # bind 0.0.0.0:1080           #监听端口

        #stats refresh 30s           #统计页面自动刷新时间

        #stats uri /haproxy?stats            #统计页面url

        #listen private_monitoring :8100

        #stats realm Haproxy Manager #统计页面密码框上提示文本

        #stats auth guest:guest      #统计页面用户名和密码设置  

listen private_monitoring  # haproxy 监控

    bind 0.0.0.0: #监听端口

    mode http

    option httplog # 采用http日志格式

    stats enable

    stats uri /stats #设置haproxy监控地址为http://localhost:8100/stats

    stats refresh 30s #统计页面自动刷新时间

    stats auth guest:guest #添加用户名密码认证

#####################我把RabbitMQ的管理界面也放在HAProxy后面了###############################

listen rabbitmq_admin

    bind 0.0.0.0:8004

    server rabbit_node_one 127.0.0.1:15672

    server rabbit_node_two 127.0.0.1:15673

    server rabbit_node_three 127.0.0.1:15674

####################################################################

listen rabbitmq_cluster

    bind 0.0.0.0:6672

    option tcplog

    mode tcp

    timeout client  3h

    timeout server  3h

    option          clitcpka

    balance roundrobin      #负载均衡算法（#banlance roundrobin 轮询，balance source 保存session值，支持static-rr，leastconn，first，uri等参数）

    #balance url_param userid

    #balance url_param session_id check_post 64

    #balance hdr(User-Agent)

    #balance hdr(host)

    #balance hdr(Host) use_domain_only

    #balance rdp-cookie

    #balance leastconn

    #balance source //ip

    server   rabbit_node_one 127.0.0.1:5672 check inter 5s rise 2 fall 3   #check inter 2000 是检测心跳频率，rise 2是2次正确认为服务器可用，fall 3是3次失败认为服务器不可用

    server   rabbit_node_two 127.0.0.1:5673 check inter 5s rise 2 fall 3

    server   rabbit_node_three 127.0.0.1:5674 check inter 5s rise 2 fall 3

zhouguangfengdeMacBook-Pro:haproxy zhouguangfeng$ pwd

/usr/local/etc/haproxy

zhouguangfengdeMacBook-Pro:haproxy zhouguangfeng$ ls

haproxy.cfg

zhouguangfengdeMacBook-Pro:haproxy zhouguangfeng$ cd /usr/local/Cellar/haproxy/1.8.12/

.brew/                       INSTALL_RECEIPT.json         README                       homebrew.mxcl.haproxy.plist

CHANGELOG                    LICENSE                      bin/                         share/

zhouguangfengdeMacBook-Pro:haproxy zhouguangfeng$ cd /usr/local/Cellar/haproxy/1.8.12/bin/

zhouguangfengdeMacBook-Pro:bin zhouguangfeng$ ls

haproxy    run.sh

zhouguangfengdeMacBook-Pro:bin zhouguangfeng$ cat run.sh

#!/bin/sh

  ./haproxy -f /usr/local/etc/haproxy/haproxy.cfg -d

zhouguangfengdeMacBook-Pro:bin zhouguangfeng$ ./run.sh

[WARNING] 187/111607 (50864) : config : log format ignored for proxy 'private_monitoring' since it has no log address.

[WARNING] 187/111607 (50864) : config : monitor-uri will be ignored for proxy 'rabbitmq_cluster' (needs 'mode http').

[WARNING] 187/111607 (50864) : config : log format ignored for proxy 'rabbitmq_cluster' since it has no log address.

[WARNING] 187/111607 (50864) : config : 'stats' statement ignored for proxy 'rabbitmq_cluster' as it requires HTTP mode.

[WARNING] 187/111607 (50864) : config : 'option forwardfor' ignored for proxy 'rabbitmq_cluster' as it requires HTTP mode.

Available polling systems :

     kqueue : pref=300,  test result OK

       poll : pref=200,  test result OK

     select : pref=150,  test result OK

Total: 3 (3 usable), will use kqueue.

Available filters :

    [SPOE] spoe

    [COMP] compression

    [TRACE] trace

Using kqueue() as the polling mechanism.

访问：统计页面 http://localhost:8100/stats 用户和密码是上述配置的guest

访问RabbitMQ统一管理页面：http://localhost:8004/#/ 用户和密码是初始化密码 guest和guest

  • 参考文档：

Clustering Guide：http://www.rabbitmq.com/clustering.html

RabbitMQ单机集群搭建：https://blog.csdn.net/Java_HuiLong/article/details/73718714

RabbitMQ分布式集群架：https://blog.csdn.net/WoogeYu/article/details/51119101

RabbitMQ3.6.3集群搭建+HAProxy1.6做负载均衡：https://www.cnblogs.com/lion.net/p/5725474.html

RabbitMQ集群及负载均衡搭建：https://blog.csdn.net/zpwmail/article/details/78066862

HAProxy Configuration Manual ：http://cbonte.github.io/haproxy-dconv/1.8/configuration.html

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