管理 RabbitMQ 服务器的几种方式
1.通过 rabbitmqctl 脚本</strong></span>
rabbitmqctl 是 shell 脚本，其通过 exec 调用了 erl 程序。会间接调用到如下两个 shell 脚本：
在使用该脚本时允许用户定制的环境变量为：
下面分别看下这几个脚本都干了哪些事情。
【rabbitmqctl</strong>】</span>
[root@Betty chapter-9]# vi /usr/sbin/rabbitmqctl #!/bin/sh ## The contents of this file are subject to the Mozilla Public License ## Version 1.1 (the "License"); you may not use this file except in ## compliance with the License. You may obtain a copy of the License ## at http://www.mozilla.org/MPL/ ## ## Software distributed under the License is distributed on an "AS IS" ## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See ## the License for the specific language governing rights and ## limitations under the License. ## ## The Original Code is RabbitMQ. ## ## The Initial Developer of the Original Code is VMware, Inc. ## Copyright (c) 2007-2013 VMware, Inc. All rights reserved. ## # Get default settings with user overrides for (RABBITMQ_)<var_name> # Non-empty defaults should be set in rabbitmq-env . `dirname $0`/rabbitmq-env # $0 为 /usr/sbin/rabbitmqctl 所以 `dirname $0`/rabbitmq-env # 为 /usr/sbin/rabbitmq-env # 这里是初始化了一些默认的环境变量值（详见下面） ##--- Set environment vars RABBITMQ_<var_name> to defaults if not set # 若未手动设置 $RABBITMQ_NODENAME 则设置其为默认值 ${NODENAME} [ "x" = "x$RABBITMQ_NODENAME" ] && RABBITMQ_NODENAME=${NODENAME} # 若未手动设置 $RABBITMQ_CTL_ERL_ARGS 则设置其值为默认值 ${CTL_ERL_ARGS} [ "x" = "x$RABBITMQ_CTL_ERL_ARGS" ] && RABBITMQ_CTL_ERL_ARGS=${CTL_ERL_ARGS} ##--- End of overridden <var_name> variables exec ${ERL_DIR}erl \ -pa "${RABBITMQ_HOME}/ebin" \ -noinput \ -hidden \ ${RABBITMQ_CTL_ERL_ARGS} \ -sname rabbitmqctl$$ \ # $$ 为当前进程的 pid -boot "${CLEAN_BOOT_FILE}" \ -s rabbit_control_main \ -nodename $RABBITMQ_NODENAME \ -extra "$@"【rabbitmq-env</strong>】</span>
[root@Betty ~]# vi /usr/sbin/rabbitmq-env #!/bin/sh ## The contents of this file are subject to the Mozilla Public License ## Version 1.1 (the "License"); you may not use this file except in ## compliance with the License. You may obtain a copy of the License ## at http://www.mozilla.org/MPL/ ## ## Software distributed under the License is distributed on an "AS IS" ## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See ## the License for the specific language governing rights and ## limitations under the License. ## ## The Original Code is RabbitMQ. ## ## The Initial Developer of the Original Code is VMware, Inc. ## Copyright (c) 2007-2013 VMware, Inc. All rights reserved. ## # Determine where this script is really located (if this script is # invoked from another script, this is the location of the caller) SCRIPT_PATH="$0" # $0 的值应该为 /usr/sbin/rabbitmq-env while [ -h "$SCRIPT_PATH" ] ; do # -h 用于判定是否为符号链接 # readlink -f 获取符号链接 rabbitmq-env 所对应的完整路径 /usr/lib/rabbitmq/sbin/rabbitmq-env FULL_PATH=`readlink -f $SCRIPT_PATH 2>/dev/null` if [ "$?" != "0" ]; then # 判定上一步执行结果是否为成功 # 直接执行 readlink 将获取符号链接 rabbitmq-env 所对应的相对路径 ../lib/rabbitmq/sbin/rabbitmq-env REL_PATH=`readlink $SCRIPT_PATH` # expr STRING : REGEXP 判定 $REL_PATH 是不是以 '/' 开头 if expr "$REL_PATH" : '/.*' > /dev/null; then SCRIPT_PATH="$REL_PATH" # 以 '/' 开头 else SCRIPT_PATH="`dirname "$SCRIPT_PATH"`/$REL_PATH" fi else SCRIPT_PATH=$FULL_PATH fi done SCRIPT_DIR=`dirname $SCRIPT_PATH` # 得到 SCRIPT_DIR = /usr/lib/rabbitmq/sbin RABBITMQ_HOME="${SCRIPT_DIR}/.." # 得到 RABBITMQ_HOME = /usr/lib/rabbitmq/ [ "x" = "x$HOSTNAME" ] && HOSTNAME=`env hostname` # 得到 HOSTNAME = Betty NODENAME=rabbit@${HOSTNAME%%.*} # 得到 NODENAME = rabbit@Betty 其中 ${HOSTNAME%%.*} 的含义是 # 以 '.' 为分隔位置，从后开始作最长匹配的删除 # 如果是一个 '%' 则为最短匹配 ## Set defaults . ${SCRIPT_DIR}/rabbitmq-defaults # 初始化默认环境变量（详见下面） ## Common defaults SERVER_ERL_ARGS="+K true +A30 +P 1048576 \ -kernel inet_default_connect_options [{nodelay,true}]" # 默认的通用配置选项 # warn about old rabbitmq.conf file, if no new one if [ -f /etc/rabbitmq/rabbitmq.conf ] && \ [ ! -f ${CONF_ENV_FILE} ] ; then echo -n "WARNING: ignoring /etc/rabbitmq/rabbitmq.conf -- " # echo -n 不输出换行符 echo "location has moved to ${CONF_ENV_FILE}" fi ## Get configuration variables from the configure environment file [ -f ${CONF_ENV_FILE} ] && . ${CONF_ENV_FILE} # 如果存在 ${CONF_ENV_FILE} 文件则执行该 环境配置 文件【 rabbitmq-defaults 】
[root@Betty ~]# vi /usr/sbin/rabbitmq-defaults #!/bin/sh ## The contents of this file are subject to the Mozilla Public License ## Version 1.1 (the "License"); you may not use this file except in ## compliance with the License. You may obtain a copy of the License ## at http://www.mozilla.org/MPL/ ## ## Software distributed under the License is distributed on an "AS IS" ## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See ## the License for the specific language governing rights and ## limitations under the License. ## ## The Original Code is RabbitMQ. ## ## The Initial Developer of the Original Code is VMware, Inc. ## Copyright (c) 2012-2013 VMware, Inc. All rights reserved. ## ### next line potentially updated in package install steps SYS_PREFIX= ### next line will be updated when generating a standalone release ERL_DIR= CLEAN_BOOT_FILE=start_clean SASL_BOOT_FILE=start_sasl ## Set default values CONFIG_FILE=${SYS_PREFIX}/etc/rabbitmq/rabbitmq # 配置文件路径 LOG_BASE=${SYS_PREFIX}/var/log/rabbitmq # 日志文件路径 MNESIA_BASE=${SYS_PREFIX}/var/lib/rabbitmq/mnesia # 数据库路径 ENABLED_PLUGINS_FILE=${SYS_PREFIX}/etc/rabbitmq/enabled_plugins # 记录已使能插件的文件 PLUGINS_DIR="${RABBITMQ_HOME}/plugins" # 插件所在路径 CONF_ENV_FILE=${SYS_PREFIX}/etc/rabbitmq/rabbitmq-env.conf # 环境配置文件
2. 通过 RabbitMQ Management plugin</strong></span>
首先想到的问题是：为什么有了 rabbitmqctl 还要 RabbitMQ Management plugin ？
RabbitMQ Management plugin 提供了如下几种入口：
与《Rabbitmq in Action》中的说明进行对照：
其中，
官网原文如下介绍该工具：rabbitmqadmin 提供了 Web UI 上所具有的全部功能，且更易于在脚本中使用。rabbitmqadmin 是一个特化的 HTTP 客户端，但如果你打算在自己的应用程序中调用 rabbitmqadmin ，那么还是建议你采用直接访问 HTTP API 的方式 。</span> 另外， rabb</span> itmqadmin 一般会在增加可执行权限后放到 /usr/local/bin 中。
来自：http://my.oschina.net/moooofly/blog/170965