RabbitMQ群集搭建(Epel源)
实验环境
192.168.3.110 rabbitmq-node1 192.168.3.120 rabbitmq-node2
2、配置前同步时间
[root@rabbitmq-test2 ~]# ntpdate pool.ntp.org 22 Jan 20:47:47 ntpdate[2358]: adjust time server 202.112.29.82 offset 0.000434 sec [root@rabbitmq-test1 ~]# ntpdate pool.ntp.org 22 Jan 20:47:47 ntpdate[2358]: adjust time server 202.112.29.82 offset 0.000434 sec
3、注意一定要修改hosts
[root@rabbitmq-test2 ~]# cat /etc/hosts 192.168.3.110 rabbitmq-test1 www.rabbitmq-test1.com 192.168.3.120 rabbitmq-test2 www.rabbitmq-test2.com
4.安装Epel源
[root@rabbitmq-test1 ~]# rpm -ivh http://mirrors.sohu.com/fedora-epel/6/x86_64/epel-release-6-8.noarch.rpm Retrieving http://mirrors.sohu.com/fedora-epel/6/x86_64/epel-release-6-8.noarch.rpm warning: /var/tmp/rpm-tmp.Xax2w8: Header V3 RSA/SHA256 Signature, key ID 0608b895: NOKEY Preparing... ########################################### [100%] 1:epel-release ########################################### [100%]
5.更新yum库
[root@rabbitmq-test1 ~]# yum repolist Loaded plugins: fastestmirror, refresh-packagekit, security Loading mirror speeds from cached hostfile * base: mirrors.hustunique.com * epel: mirrors.zju.edu.cn * extras: mirrors.btte.net * updates: mirrors.btte.net epel/primary_db | 6.4 MB 00:49 extras | 3.4 kB 00:00 updates | 3.4 kB 00:00 updates/primary_db | 1.5 MB 00:00 repo id repo name status base CentOS-6 - Base 6,518 epel Extra Packages for Enterprise Linux 6 - x86_64 11,189 extras CentOS-6 - Extras 36 updates CentOS-6 - Updates 587 repolist: 18,330
6.下载并安装rabbitmq,并查看状态
方案一:
安装erlang
[root@rabbitmq-test1 ~]# yum -y install erlang
[root@rabbitmq-test1 ~]# wget http://www.rabbitmq.com/releases/rabbitmq-server/v2.8.6/rabbitmq-server-2.8.6-1.noarch.rpm [root@rabbitmq-test1 ~]# rpm -ivh rabbitmq-server-2.8.6-1.noarch.rpm warning: rabbitmq-server-2.8.6-1.noarch.rpm: Header V4 DSA/SHA1 Signature, key ID 056e8e56: NOKEY Preparing... ########################################### [100%] 1:rabbitmq-server ########################################### [100%
方案二:
[root@rabbitmq-test1 ~]# yum -y install rabbitmq-server
[root@rabbitmq-test1 ~]# /etc/init.d/rabbitmq-server start
Starting rabbitmq-server: SUCCESS
rabbitmq-server.
[root@rabbitmq-test1 ~]# ps -ef | grep rabbitmq
rabbitmq 2606 1 0 21:33 ? 00:00:00 /usr/lib64/erlang/erts-5.8.5/bin/epmd -daemon
root 2614 1 0 21:34 pts/0 00:00:00 runuser rabbitmq --session-command /usr/sbin/rabbitmq-server
rabbitmq 2637 2614 0 21:34 pts/0 00:00:00 /bin/sh /usr/sbin/rabbitmq-server
rabbitmq 2643 2637 1 21:34 pts/0 00:00:00 /usr/lib64/erlang/erts-5.8.5/bin/beam -W w -K true -A30 -P 1048576 -- -root /usr/lib64/erlang -progname erl -- -home /var/lib/rabbitmq -- -noshell -noinput -sname rabbit@kaibin -boot /var/lib/rabbitmq/mnesia/rabbit@kaibin-plugins-expand/rabbit -kernel inet_default_connect_options [{nodelay,true}] -sasl errlog_type error -sasl sasl_error_logger false -rabbit error_logger {file,"/var/log/rabbitmq/[email protected]"} -rabbit sasl_error_logger {file,"/var/log/rabbitmq/[email protected]"} -os_mon start_cpu_sup false -os_mon start_disksup false -os_mon start_memsup false -mnesia dir "/var/lib/rabbitmq/mnesia/rabbit@kaibin"
rabbitmq 2710 2643 0 21:34 ? 00:00:00 inet_gethost 4
rabbitmq 2711 2710 0 21:34 ? 00:00:00 inet_gethost 4
root 2724 2346 0 21:34 pts/0 00:00:00 grep rabbitmq
[root@rabbitmq-test1 ~]# rabbitmqctl status
7.安装插件管理界面
[root@rabbitmq-test1 ~]# cd /usr/lib/rabbitmq/bin/ [root@rabbitmq-test1 bin]# ./rabbitmq-plugins list [ ] amqp_client 3.1.5 [ ] cowboy 0.5.0-rmq3.1.5-git4b93c2d [ ] eldap 3.1.5-gite309de4 [ ] mochiweb 2.7.0-rmq3.1.5-git680dba8 [ ] rabbitmq_amqp1_0 3.1.5 [ ] rabbitmq_auth_backend_ldap 3.1.5 [ ] rabbitmq_auth_mechanism_ssl 3.1.5 [ ] rabbitmq_consistent_hash_exchange 3.1.5 [ ] rabbitmq_federation 3.1.5 [ ] rabbitmq_federation_management 3.1.5 [ ] rabbitmq_jsonrpc 3.1.5 [ ] rabbitmq_jsonrpc_channel 3.1.5 [ ] rabbitmq_jsonrpc_channel_examples 3.1.5 [ ] rabbitmq_management 3.1.5 [ ] rabbitmq_management_agent 3.1.5 [ ] rabbitmq_management_visualiser 3.1.5 [ ] rabbitmq_mqtt 3.1.5 [ ] rabbitmq_shovel 3.1.5 [ ] rabbitmq_shovel_management 3.1.5 ......省略 [root@rabbitmq-test1 bin]# ./rabbitmq-plugins enable rabbitmq_management The following plugins have been enabled: mochiweb webmachine rabbitmq_web_dispatch amqp_client rabbitmq_management_agent rabbitmq_management Plugin configuration has changed. Restart RabbitMQ for changes to take effect. [root@rabbitmq-test1 bin]# /etc/init.d/rabbitmq-server restart Restarting rabbitmq-server: RabbitMQ is not running SUCCESS rabbitmq-server.
查看管理端口是否启动:
[root@rabbitmq-test1 ~] lsof -i:55672 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME beam 5574 rabbitmq 17r IPv4 30162 0t0 TCP *:55672 (LISTEN)
浏览器打开http://IP:55672 账号密码都是guest
注意：rabbitmq从3.3.0开始禁止使用guest/guest权限通过除localhost外的访问。
如果想使用guest/guest通过远程机器访问，需要在rabbitmq配置文件中(/etc/rabbitmq/rabbitmq.config)中设置loopback_users为[]。
/etc/rabbitmq/rabbitmq.config文件完整内容如下（注意后面的半角句号）：
[{rabbit, [{loopback_users, []}]}].
8.rabbitmq集群配置
(1)设置每个节点Cookie
Rabbitmq的集群是依赖于erlang的集群来工作的，所以必须先构建起erlang的集群环境。Erlang的集群中各节点是通过一个magic cookie来实现的，这个cookie存放在 /var/lib/rabbitmq/.erlang.cookie 中，文件是400的权限。所以必须保证各节点cookie保持一致，否则节点之间就无法通信, 这里我们直接scp过去
[root@rabbitmq-test1 bin]# cd /var/lib/rabbitmq/ [root@rabbitmq-test1 rabbitmq]# scp -P 8022 .erlang.cookie [email protected]:/var/lib/rabbitmq/ [root@rabbitmq-test1 ~]# scp -P 8022 .erlang.cookie [email protected]:/root/
注：拷过去rabbitmq-test2节点重启后出现问题
[root@rabbitmq-test2 ~]# /etc/init.d/rabbitmq-server status Status of node rabbit@rabbitmq-test2 ... Error: unable to connect to node rabbit@rabbitmq-test2: nodedown DIAGNOSTICS =========== nodes in question: [rabbitmq-test2] hosts, their running nodes and ports: - unable to connect to epmd on rabbitmq-test2: badarg (unknown POSIX error) current node details: - node name: rabbitmqctl523@rabbitmq-test2 - home dir: /var/lib/rabbitmq - cookie hash: pl2sZ2mw8yI/WrVgPZE+pw== #原因：因为修改了主机的hostname 解决方法: 1.重启系统 2.执行命令： # /sbin/service rabbitmq-server stop # /sbin/service rabbitmq-server start # rabbitmqctl status 测试正确
(3)关于节点类型（ram |disk）及加入集群
ram节点的状态保存在内存中，disk节点保存在磁盘中被加入的节点为disk，如本例中rabbit@rabbitmq-test1为ram节点，rabbit@rabbitmq-test2为disk节点
[root@rabbitmq-test1 rabbitmq]# rabbitmqctl join_cluster rabbit@rabbitmq-test2
Clustering node 'rabbit@rabbitmq-test1' with 'rabbit@rabbitmq-test2' ...
Error: mnesia_unexpectedly_running
#提示需要本机节点正在运行，无法加入集群
[root@rabbitmq-test1 rabbitmq]# rabbitmqctl stop_app
Stopping node 'rabbit@rabbitmq-test1' ...
...done.
[root@rabbitmq-test1 rabbitmq]# rabbitmqctl join_cluster rabbit@rabbitmq-test2
Clustering node 'rabbit@rabbitmq-test1' with 'rabbit@rabbitmq-test2' ...
...done. #已加入集群
[root@rabbitmq-test1 rabbitmq]# rabbitmqctl start_app
Starting node 'rabbit@rabbitmq-test1' ...
...done.
[root@rabbitmq-test1 rabbitmq]# rabbitmqctl cluster_status #查看集群状态
Cluster status of node 'rabbit@rabbitmq-test1' ...
[{nodes,[{disc,['rabbit@rabbitmq-test1','rabbit@rabbitmq-test2']}]}, #两个disk节点
{running_nodes,['rabbit@rabbitmq-test2','rabbit@rabbitmq-test1']}, #运行着两个节点
{partitions,[]}]
...done.
改变test-node1的节点属性(改为ram几点)
[root@rabbitmq-test1 rabbitmq]# rabbitmqctl stop_app
Stopping node 'rabbit@rabbitmq-test1' ...
...done.
[root@rabbitmq-test1 rabbitmq]# rabbitmqctl change_cluster_node_type ram
Turning 'rabbit@rabbitmq-test1' into a ram node ...
...done.
[root@rabbitmq-test1 ~]# rabbitmqctl cluster_status
Cluster status of node 'rabbit@rabbitmq-test1' ...
[{nodes,[{disc,['rabbit@rabbitmq-test2']},{ram,['rabbit@rabbitmq-test1']}]},
{running_nodes,['rabbit@rabbitmq-test2','rabbit@rabbitmq-test1']},
{partitions,[]}]
...done.
9.登陆web页面查看集群状态
http://192.168.3.110:15672
10.关于rabbitmq的小知识:
#rabbitmq的web管理界面默认guest:guest,这样的话,不是很安全,需要更改下
[root@rabbitmq-test1 ~]# rabbitmqctl change_password guest kaibin Changing password for user "guest" ... ...done.
#查看所有队列信息
[root@rabbitmq-test1 ~]# rabbitmqctl list_queues Listing queues ... ...done.
#关闭应用
rabbitmqctl stop_app
#启动应用，和上述关闭命令配合使用，达到清空队列的目的
rabbitmqctl start_app
#清除所有队列
rabbitmqctl reset
#关于端口
rabbimq 55672 15672 为监控插件端口
rabbitmq 5672为数据端口
[root@rabbitmq-test1 ~]# lsof -i:15672 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME beam 1875 rabbitmq 20u IPv4 24559 0t0 TCP *:15672 (LISTEN) [root@rabbitmq-test1 ~]# lsof -i:55672 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME beam 1875 rabbitmq 18u IPv4 24555 0t0 TCP *:55672 (LISTEN) [root@rabbitmq-test1 ~]# lsof -i:5672 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME beam 1875 rabbitmq 15u IPv6 24550 0t0 TCP *:amqp (LISTEN)