Schedule a Performance Logs and Alerts

Posted on 2009-02-16
Last Modified: 2012-05-06
Hi Experts,

Recently, I discovered that one of our web site that uses Apache Tomcat installed would stop responding every few days.  Once we restarted the Apache Service (we installed on windows 2003 server), the site would be okay.  

I was wondering if that could be a problem with RAM getting stuck and couldn't be released.  for that, I wanted to do some "Performance Logs and Alerts" to capture memory usage at certain period of the day.  Honestly, I havn't use that to measure performance before, and i don't see any option to make the Counter Log to run everyday.  

Is there a way to make the schedule recursive?  say... have it run my daily job at 12:00pm?  Do I need to create a OS schedule job to call that?  Or is there any better way to do it?  Thanks very much in advance.
Question by:wingkchan
    LVL 22

    Accepted Solution

    You were on the right track.  You'll use Counters but you'll capture your data throughout the period of interest.  From there you can import the data into Excel to perform a time of day analysis.  Just make sure you create a text log instead of a binary log.

    You could setup Windows scheduler to run the capture at a specific time of day, but do yourself a favor and just run Performance Monitor continuously.  (If you have too much data, just change the sample rate).
    LVL 2

    Author Closing Comment

    Thanks Paka for your advice.  I took your advice and set the sample rate with longer intervals.  The capture was set to run for 7 days with every one hour.  What I wanted to find was whether there were times that RAM usage would drop to a very low point.  It got me what I wanted. thanks!

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