{"id":328,"date":"2009-04-29T21:10:41","date_gmt":"2009-04-29T14:10:41","guid":{"rendered":"http:\/\/adityo.blog.binusian.org\/?p=328"},"modified":"2009-04-29T21:19:45","modified_gmt":"2009-04-29T14:19:45","slug":"how-to-monitoring-apache-server-performance-and-status-using-mod_status","status":"publish","type":"post","link":"https:\/\/adityo.blog.binusian.org\/?p=328","title":{"rendered":"How to monitoring Apache server performance and status using mod_status"},"content":{"rendered":"

Okay it’s occur to me how i can monitor the specific process that happen on apache server, yes we can use top, ps aux , lsof etc command to monitor the process but we can only see a general info on it. And i found mod_status.<\/p>\n

What is mod_status ?<\/span><\/h2>\n

mod_status is a built in Apache web server modules (by default) and with that we can \u00a0get server status from a web browser. With this module you can easily find out how well your server is preforming. All reports are generated in a html format. You can easily find out following type of information:<\/p>\n

    \n
  1. Total number of worker serving requests<\/li>\n
  2. Total number of of idle worker<\/li>\n
  3. Find the status of each worker, the number of requests that worker has performed and the total number of bytes served by the worker<\/li>\n
  4. Total number byte count served<\/li>\n
  5. Other information such as CPU usage, number of requests per second,current hosts and requests being processed etc.<\/li>\n<\/ol>\n

    Setting the mod_status<\/span><\/h2>\n

    Btw i use CentOS release 5.3 (Final) ,\u00a0httpd-manual-2.2.3-11.el5_1.centos.3 and\u00a0httpd-2.2.3-11.el5_1.centos.3 for this tutorial. Okay let’s start the set up:<\/p>\n

    1. Go to httpd.conf or \/apache2.conf on \u00a0\/etc\/httpd\/conf\/httpd.conf or\u00a0\/etc\/apache2\/apache2.conf\u00a0\u00a0and add this<\/p>\n

    <Location \/server-status>
    \n\u00a0 \u00a0\u00a0SetHandler\u00a0server-status
    \n\u00a0 \u00a0\u00a0Order\u00a0deny,allow
    \n\u00a0 \u00a0\u00a0Deny\u00a0from\u00a0all
    \n\u00a0 \u00a0\u00a0Allow\u00a0from\u00a0.your_domain.com
    \n<\/Location><\/p>\n

    it means :<\/p>\n

    server status will be acessible at location http:\/\/servername\/server-status, access will be denied to everybody but people connecting from domain your_domain.com and any sub-domain from your_domain.com.<\/p>\n

    you could be using\u00a0localhost<\/em>\u00a0instead of 127.0.0.1 for the only access for your\u00a0http:\/\/servername\/server-status. here is the settings:<\/p>\n

    <Location \/server-status>
    \n\u00a0 \u00a0\u00a0SetHandler\u00a0server-status
    \n\u00a0 \u00a0\u00a0Order\u00a0deny,allow
    \n\u00a0 \u00a0\u00a0Deny\u00a0from\u00a0all
    \n\u00a0 \u00a0\u00a0Allow\u00a0from\u00a0127.0.0.1
    \n<\/Location><\/p>\n

    If you did not want any resctriction you can set allow from all like this:<\/p>\n

    <Location \/server-status>
    \n\u00a0 \u00a0\u00a0SetHandler\u00a0server-status
    \n\u00a0 \u00a0\u00a0Order\u00a0deny,allow
    \n\u00a0 \u00a0\u00a0Allow\u00a0from\u00a0all
    \n<\/Location><\/p>\n

    2. \u00a0Check your configuration and restart the settings<\/p>\n

    # service httpd restart<\/p>\n

    3. Access your server-status on your\u00a0http:\/\/servername\/server-status<\/p>\n

    \"mod1\"<\/a><\/p>\n

    3. You will see a standard info on the server-status,\u00a0If you want to get more information from your server activity, you can add this on your httpd.conf\/apache2.conf:<\/p>\n

    ExtendedStatus\u00a0On<\/div>\n

    just above the\u00a0<Location \/server-status><\/em>\u00a0directive. But keep in mind that this cannot be set on a per virtualhost basis and will use more resources.
    \nBut in another hand, you will be able to access more informations such as:<\/p>\n