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Old 07-25-2011, 06:31 AM   #1
Registered: Dec 2008
Location: Germany/Poland
Distribution: CentOS / Debian / Solaris / RedHat
Posts: 266

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Tomcat + java 32bit = growing swap - Problem


I have two running Tomcats 5( -Xms2048M -Xmx3300M)(1.5 Java 32bit) on RedHat 4 x64. My server has 8GB ram.

I dont know why but each Tomcat generating such a big swap.

11206 user  18   0 3549m 2.1g 5140 S  0.7 23.5  19:01.47 1.4g java
11820 user  19   0 3585m 2.2g 5344 S  1.0 24.9  37:37.86 1.3g java
Does anybody knows why ?

I count on Your help.

Old 07-25-2011, 05:21 PM   #2
Registered: Mar 2010
Posts: 58

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-) What ps command did you use to generate that process output?

-) Have you looked at swap usage using nmon or something like nmon?

What I'm thinking is that swap can be allocated as a resource. Are you seeing the allocation, or actual usage?
Old 07-27-2011, 10:42 PM   #3
LQ Newbie
Registered: Feb 2011
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u try to know the memory usage by sar -r and c how much memory is being used..

check for more details on sar command


memory, problem, swap, tomcat

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