DX Application Performance Management

Hi all,


I want to write a EPAgent perl plugin to monitor verbose GC from server log?

here is the example of verbose GC from server log.

31301.271: [GC [PSYoungGen: 2692846K->22439K(2734336K)] 6196730K->3535463K(8326784K), 0.0453490 secs] [Times: user=0.19 sys=0.00, real=0.05 secs]

I know how to parse log from perl scripts, but since the logging keeps appending to the end of the log files , and we also rotate log every night, so the file got truncated at night...
I think the plugin need to be stateful ,,, but not sure if perl scripts have the strategy to read growthing log file...


Any idea?

Thanks and regards,
Wei

Any assistance for Wei?

Thanks,
Mary

What version of APM are you using?

Hi Hiko,

We are using apm 9.0.6,

Cheers,
Wei

hdavis wrote:

What version of APM are you using?

You might want to consider using GC Watch and see if you can modify it to monitor your log.
You can find a copy in the "Community Documents" under "Tools | Field Extensions."
I don't think you can run GC Monitor in your 9.0.x agents. The plugin was never updated to run with 9.0.x. The 9.1.x agents has GC Monitor integrated.

Have this in a shell script


tail -100 server.log |grep PSYoungGe |tail -1


and put the script in the EPA plugin line.

This will return the last PSYong. You will have to parse this line to output in a format that EPA understands ( metric name = metric value)