执行activemq启动命令start，输出正常提示信息，activemq.log日志也正常，但进程没有起来，没有其他任何异常信息：
[[email protected] bin]# ./activemq start
INFO: Using default configuration
(you can configure options in one of these file: /etc/default/activemq /root/.activemqrc)
INFO: Invoke the following command to create a configuration file
./activemq setup [ /etc/default/activemq | /root/.activemqrc ]
INFO: Using java ‘/usr/bin/java‘
INFO: Starting - inspect logfiles specified in logging.properties and log4j.properties to get details
INFO: pidfile created : ‘/usr/local/activemq-5.6.0-slave/data/activemq-jms2.pid‘ (pid ‘35301‘)
查询到console启动命令，启动后发现有错误日志输出：
[[email protected] bin]# ./activemq console
INFO: Using default configuration
(you can configure options in one of these file: /etc/default/activemq /root/.activemqrc)
INFO: Invoke the following command to create a configuration file
./activemq setup [ /etc/default/activemq | /root/.activemqrc ]
INFO: Using java ‘/usr/bin/java‘
INFO: Starting in foreground, this is just for debugging purposes (stop process by pressing CTRL+C)
错误: 必须限制口令文件读取访问权限: /usr/local/activemq-5.6.0-master/conf/jmx.password
修改jmx.password的权限：
-rwxrwxrwx. 1 hanxl games 968 8月 16 2013 jmx.password
chmod -R 600 jmx.password
-rw-------. 1 hanxl games 968 8月 16 2013 jmx.password
第二次报错如下，必须使用console命令启动才能看到错误：
错误: 代理抛出异常错误: java.net.MalformedURLException: Local host name unknown: java.net.UnknownHostException: jms2: jms2: 未知的名称或服务
console启动命令属于非后台运行，当关闭shell窗口时会退出进程，找到错误修改后，还需要使用start启动。