安装Apache后查看httpd状态出现“httpd dead but subsys locked”问题

这个问题是安装部署Ganglia时遇到的,httpd版本2.2.15,CentOS版本是6.4。

安装方式:

yum install httpd
安装完成后,启动一切显示正常,但查看httpd状态时:

service httpd status
httpd dead but subsys locked
尝试删除锁:

sudo rm -f /var/lock/subsys/httpd

没有起作用,这时重新启动httpd,报错:

service httpd restart
Stopping httpd: [FAILED]
Starting httpd: (98)Address already in use: make_sock: could not bind to address 10.10.26.11:80
no listening sockets available, shutting down
Unable to open logs
[FAILED]
于是,网上各种Google找方法,都没解决。

然后检查httpd.conf发现 PidFile变量默认被设置为run/httpd.pid,把它变成指向/var/run:

PidFile /var/run/httpd.pid
同时在 /etc/sysconfig/httpd修改:

PIDFILE=/var/run/httpd.pid
kill掉httpd 进程(或是通过端口查找再kill掉):

killall -9 httpd

删除锁:

sudo rm -f /var/lock/subsys/httpd

重新启动httpd:

sudo service httpd restart

这时问题解决:

service httpd status
httpd (pid 14331) is running...
参考: https://awaseroot.wordpress.com/2012/06/11/subsys-lock-problem-with-centos-6-2-and-apache/#more-330

安装Ganglia参考:

         1.http://blog.csdn.net/wsgzg1991/article/details/9496907

         2.http://www.cnblogs.com/Richardzhu/p/3481996.html

    3.http://www.tuicool.com/articles/Qjuqym

    4.http://www.codesec.net/view/148180.html

    5.http://www.tuicool.com/articles/yYjeYz

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