Forum Discussion

Hello_Nair's avatar
Hello_Nair
Level 3
13 years ago

Native httpd monitoring by AppicationHA on RHEL 5.8

Hi,

I have configured Apache monitoring with Application on RHEL 5.8. This server runs /usr/sbin/httpd and the coniguration file is /etc/httpd/conf/httpd.conf. However AppHA alway report that

"Apache HTTP server with Config file [/etc/httpd/conf/httpd.conf] is NOT RUNNING (Starting)"

However if I login to the server, I can see that the process is running.

The error code is V16-20081-3.

Accoring to the logs under /var/VRTSvcs/log ,  (  apache log ) it is considring the http directory as /usr/sbin  instead of /etc/httpd

Any suggestions or recommendations?

Thanks in advance

Hari

 

 

 

ApplicationHA
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  • Satish_K__Pagar's avatar
    Satish_K__Pagar
    13 years ago

    It is likely that the httpd processes that are running do not have the required "-f <config file>" option that is needed for monitoring the different Apache processes in ApplicationHA. You may have to update the startup script for the Apache instance to pass "-f /etc/httpd/conf/httpd.conf" option to httpd while starting it up. You confirm the same by "ps -ef | grep httpd" . Application HA detects the processes only if the httpd is started with the config file option provided.

    e.g.

    ps -ef |grep http
    root      3588     1 17 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3589  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3590  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3591  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3592  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3593  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3594  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3595  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3596  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3597  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
     

  • Prasanna_Kulkar's avatar
    Prasanna_Kulkar
    Level 3
    13 years ago

    Hi Hari,

    Are you selecting Generic Application for this configuration or Apache? What is the ApplicationHA version?

     

  • Laxmikant_Patil's avatar
    Laxmikant_Patil
    13 years ago

    Hi Hari,

    If you are using Apache agent, could you please let us know the exact error message seen in the Apache agent log file?

    Also please share the main.cf.

    Thanks,

    Laxmikant

  • Satish_K__Pagar's avatar
    Satish_K__Pagar
    Level 5
    13 years ago

    It is likely that the httpd processes that are running do not have the required "-f <config file>" option that is needed for monitoring the different Apache processes in ApplicationHA. You may have to update the startup script for the Apache instance to pass "-f /etc/httpd/conf/httpd.conf" option to httpd while starting it up. You confirm the same by "ps -ef | grep httpd" . Application HA detects the processes only if the httpd is started with the config file option provided.

    e.g.

    ps -ef |grep http
    root      3588     1 17 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3589  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3590  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3591  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3592  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3593  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3594  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3595  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3596  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
    apache    3597  3588  0 17:02 ?        00:00:00 /usr/sbin/httpd -f /etc/httpd/conf/httpd.conf
     

  • Hello_Nair's avatar
    Hello_Nair
    Level 3
    13 years ago

    Excellent. that works.

    I have updated /etc/init.d/httpd script and changed the startup line to uuse -f $CONFFILE where CONFFILE is /etc/httpd/conf/httpd.conf

    Now I have another query

    The startup script is provided by Red Hat as part httpd rpm. Modifying this outside rpm is not recommended

    Do Application HA has got a fix around this ?

    Can we use /etc/init.d/httpd as the startup script directly with HA

    I am using Application HA configuration wizard and selects Apache in the Application Selection from the Supported Application List

  • Prasanna_Kulkar's avatar
    Prasanna_Kulkar
    Level 3
    13 years ago

    Yes, this is possible through Generic / Custom Application. You can specify "/etc/init.d/httpd start", "/etc/init.d/httpd stop" and "/etc/init.d/httpd status" values for Program to Start/Stop/Monitor fields to monitor the Apache server through init scripts.