• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Ron McLeod
  • Paul Clapham
  • Bear Bibeault
  • Junilu Lacar
Sheriffs:
  • Jeanne Boyarsky
  • Tim Cooke
  • Henry Wong
Saloon Keepers:
  • Tim Moores
  • Stephan van Hulst
  • Tim Holloway
  • salvin francis
  • Frits Walraven
Bartenders:
  • Scott Selikoff
  • Piet Souris
  • Carey Brown

Rolling log files for Garbage collection?

 
Ranch Hand
Posts: 37
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi,

I am using Sun JVM garbage collection logging to find out the performance of my application. Below are the parameters that I have lined up in my apache tomcat server's setenv.sh file


export CATALINA_OPTS="-server -Xms512m -Xmx1536m -XX:MaxPermSize=150m -XX:+UseConcMarkSweepGC -XX:+DisableExplicitGC -XX:+PrintGC -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCApplicationStoppedTime -XX:+PrintTenuringDistribution -XX:+PrintHeapAtGC -Xloggc:/var/tom8080/logs/gclog.txt"

The problem we are facing is that the gclog.txt is growing huge and eating up 50% of the space on the server. And still growing.

Is there a way to roll over that file and archive it in an automated fashion, similar to how you would do it for a log4j controlled file ?
 
Marshal
Posts: 25801
69
Eclipse IDE Firefox Browser MySQL Database
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
What I would do at this point would be to say "Okay, I have many megabytes of GC data. That should be plenty for me to analyze. So I will turn off the GC logging in the server for now."
 
Rajiv Shr
Ranch Hand
Posts: 37
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
But, our application is running 24x7. If we turn GC off at some point, and if there is any issue any time after that, then we will not be able to analyze.

So, Sun does not provide any way of rolling over and archiving the gc log file?
 
I am not young enough to know everything. - Oscar Wilde This tiny ad thinks it knows more than Oscar:
Building a Better World in your Backyard by Paul Wheaton and Shawn Klassen-Koop
https://coderanch.com/wiki/718759/books/Building-World-Backyard-Paul-Wheaton
    Bookmark Topic Watch Topic
  • New Topic