Log File Monitoring

[kamaleshwaran86]

Hi All,

I tried to monitor catalina.out file of tomcat process in redhat linux OS. When i try to stop tomcat process, I could able to see the trigger status as PROBLEM. But, when I started the process, trigger still remain PROBLEM status instead of changing to OK status.

My trigger expression: {RHEL.gogoib:log["/usr/local/apache-tomcat-6.0.35/logs/catalina.out","Stopping","UTF-8",1].str(Stopping)}=1

I also tried with below expression, but still experience the same problem.

{RHEL.gogoib:log["/usr/local/apache-tomcat-6.0.35/logs/catalina.out","Stopping","UTF-8",1].logsource(stopping)}=0

Please someone help on this.

Thanks,
Kamal

[BDiE8VNy]

The trigger function str(Stopping) evaluates to 1 when the last received value of the corresponding item includes the string 'Stopping'.
So far so good.

But the corresponding item key:
log["/usr/local/apache-tomcat-6.0.35/logs/catalina.out","Stopping","UTF-8",1]
lets the agent send only lines containing 'Stopping' to the server.

The trigger will always evaluate to 1, because the item will never get a log line without containing 'Stopping'.