<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=us-ascii"> <META content="MSHTML 6.00.2900.5659" name=GENERATOR></HEAD> <BODY text=#000000 bgColor=#ffffff> <DIV dir=ltr align=left>Brill, this is the kind of thing that helps me learn how to use programs, wish a few more would post things like this.</DIV> <DIV dir=ltr align=left> </DIV> <DIV dir=ltr align=left>Cheers</DIV> <DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left> <HR tabIndex=-1> From: vinod.e [mailto:vinod.e@enlume.com] Sent: 05 March 2009 10:57 To: Nagios-users@lists.sourceforge.net Subject: [Nagios-users] How to monitor using custom scripts in nagios. </DIV> <DIV></DIV>Hi Friends, I Want <BIG>share My experience</BIG> of monitoring scripts on nagios , Very simple and Easy. <BIG>I am 3 months experienced with nagios and u should make copy of all your modifying files initially. </BIG> Actually I want to monitor tomcat threads,memory etc.. along with other services , i could not find plug ins similar to mysql. In my office we have inbuilt scripts to monitor tomcat manually. On test bases I had taken one of this script and tested , I had success. There are other ways <BIG>thanks to</BIG> <BIG>Mr.Richard Quintin</BIG> who shared his knowledge of using nagiosgraph and scripts to monitor tomcat but my suse10.2 , monitoring server have few issues i could not go head instead tried this. <BIG>Monitoring nagios using scripts.</BIG> Example: Monitoring tomcat Threads. At remote host side i.e where nrpe is installed / monitored box Created a file tomcat_threads.sh using vi editor #vi tomcat_threads.sh Entered following three line code #!/bin/sh totalThreads=`ps -C java -L -o pid,tid,pcpu,state | wc -l` echo "Total Threads Available:$totalThreads" Save the file and quit Made sure first script runs at # prompt. Moved script to /usr/local/nagios/libexec folder if its not created here. Set permission #chmod 755 tomcat_threads.sh Give ownner ship to nagios user only. #chown nagios:nagios tomcat_threads.sh #cd /usr/local/nagios/etc #vi nrpe.cfg Append below command line command[tomcat_threads.sh]=/usr/local/nagios/libexec/tomcat_threads.sh Save and quit Restart xinetd to make changes effected. #service xinetd restart <BIG> At monitoring server side / where nagios monitoring server installed</BIG>. #cd /usr/local/nagios/etc/ #vi services.cfg Append this service define service{ use generic-service host_name amazon service_description tomcat_threads.sh check_command check_nrpe!tomcat_threads.sh notifications_enabled 0 } Save and quit check for erorrs #/usr/local/nagios/bin /nagios -v /usr/local/nagios/etc/nagios.cfg correct your erorror if any. Restart nagios service #service nagios restart <BIG>DISCLAIMER: This is what worked for me and i am confident i will add as many as scripts i want in future. You make changes as it suits to you and i own no responsibility for typo error or if some thing goes wrong.</BIG> <BIG>Please share your knowledge, knowledges grows by sharing while money reduces by sharing. </BIG> Regards Gajula Vinod Kumar Eleshetty SYSTEM ADMINISTRATOR/DATA BASE ADMINISTRATOR Enlume technologis. </BODY></HTML>