Question

我准备与Chef一起安装Sensu，但是RabbitMQ似乎没有工作。即使安装erlang和RabbitMQ成功，rabbitmq-server的服务也无法启动。

rabbitMQ的错误说

Error: unable to connect to node rabbit@localhost: nodedown

和

rabbitmq service has already started

所以我用ps命令检查了rabbitmq的进程。

ps aux |grep rabbitmq

肯定有一个进程正在与rabbitmq用户一起运行

/usr/lib64/erlang/erts-6.1/bin/epmd -daemon

我杀了那个进程，然后重新启动了rabbitmq-server服务。但无法启动rabbitmq-server，同样的日志显示同样的事情，同样的事情发生了。

我曾删除过erlang和rabbitmq并重新安装它们，但结果是一样的。

以下是详细信息。

服务器

OS: CentOS 6.5

Related installed packages
erlang.x86_64       17.1-1.1.el6
rabbitmq-server.noarch      3.1.5-1.el6

原始日志

# /etc/init.d/rabbitmq-server status


Status of node rabbit@localhost ...
Error: unable to connect to node rabbit@localhost: nodedown

DIAGNOSTICS
===========

nodes in question: [rabbit@localhost]

hosts, their running nodes and ports:
- localhost: [{rabbitmqctl23036,37270}]

current node details:
- node name: rabbitmqctl23036@localhost
- home dir: /var/lib/rabbitmq
- cookie hash: Tghu0ucbQ4pq3Sc0JJBbAg==



# tail /var/log/rabbitmq/rabbit\@localhost.log



=INFO REPORT==== 6-Aug-2014::14:59:15 ===
Starting RabbitMQ 3.1.5 on Erlang 17
Copyright (C) 2007-2013 GoPivotal, Inc.
Licensed under the MPL.  See http://www.rabbitmq.com/

=INFO REPORT==== 6-Aug-2014::14:59:15 ===
node           : rabbit@localhost
home dir       : /var/lib/rabbitmq
cookie hash    : 9qNy1Q7BP12PVVcbSnZwRw==
log            : /var/log/rabbitmq/rabbit@localhost.log
sasl log       : /var/log/rabbitmq/rabbit@localhost-sasl.log
database dir   : /var/lib/rabbitmq/mnesia/rabbit@localhost

=INFO REPORT==== 6-Aug-2014::14:59:15 ===
Limiting to approx 924 file handles (829 sockets)

=INFO REPORT==== 6-Aug-2014::14:59:15 ===
Memory limit set to 802MB of 2006MB total.

=INFO REPORT==== 6-Aug-2014::14:59:15 ===
Disk free limit set to 1000MB

=INFO REPORT==== 6-Aug-2014::14:59:15 ===
msg_store_transient: using rabbit_msg_store_ets_index to provide index

=INFO REPORT==== 6-Aug-2014::14:59:15 ===
msg_store_persistent: using rabbit_msg_store_ets_index to provide index

=INFO REPORT==== 6-Aug-2014::14:59:15 ===
started TCP Listener on [::]:5672

=INFO REPORT==== 6-Aug-2014::14:59:15 ===
Error description:
   {case_clause,{error,{already_started,<0.193.0>}}}

Log files (may contain more information):
   /var/log/rabbitmq/rabbit@localhost.log
   /var/log/rabbitmq/rabbit@localhost-sasl.log

Stack trace:
   [{rabbit_networking,start_listener0,4,[]},
    {rabbit_networking,'-start_listener/4-lc$^0/1-0-',4,[]},
    {rabbit_networking,start_listener,4,[]},
    {rabbit_networking,'-boot_ssl/0-lc$^0/1-0-',1,[]},
    {rabbit_networking,boot_ssl,0,[]},
    {rabbit_networking,boot,0,[]},
    {rabbit,'-run_boot_step/1-lc$^1/1-1-',1,[]},
    {rabbit,run_boot_step,1,[]}]


=INFO REPORT==== 6-Aug-2014::14:59:16 ===
stopped TCP Listener on [::]:5672

=INFO REPORT==== 6-Aug-2014::14:59:16 ===
Error description:
   {could_not_start,rabbit,
       {bad_return,
           {{rabbit,start,[normal,[]]},
            {'EXIT',
                {rabbit,failure_during_boot,
                    {case_clause,{error,{already_started,<0.193.0>}}}}}}}}

Log files (may contain more information):
   /var/log/rabbitmq/rabbit@localhost.log
   /var/log/rabbitmq/rabbit@localhost-sasl.log

Answer 1

看起来RabbitMQ（确切地说5672）正在使用的端口已经被使用了。或者在你的情况下，它可能仍然被采取。如果您杀死在某个端口上打开套接字的应用程序，则您没有给它时间来正确关闭此连接。系统最终会注意到这一点并释放资源，但可能需要一些时间。所以你可以做的就是等一下，或者改变RabbitMQ configuration。

希望这会对您的一些问题有所帮助。

无法在CentOS 6.5上启动RabbitMQ Server

1 个答案: