<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> </head> <body bgcolor="#ffffff" text="#000000"> 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>