java heap space error

2009-09-01 Thread Suleyman Akpinar

Hi all,

I have a java web application running on tomcat and I get java heap 
space not enough error temporarily. Each time I am increasing the JMV 
heap option by modifying the system variable CATALINA_OPTS. However, 
this solves the problem temporarily. I get the same error when I work 
for some more weeks on the development of the application.


Can anybody help me solve the problem?

Thanks in advance.
Suleyman

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Re: java heap space error

2009-09-01 Thread Suleyman Akpinar

Many thanks Pid,

Your solution seems very reasonable. I will fulfill your advice.

Best Regards,
Suleyman

Pid wrote:

On 01/09/2009 08:58, Suleyman Akpinar wrote:

Hi all,

I have a java web application running on tomcat and I get java heap
space not enough error temporarily. Each time I am increasing the JMV
heap option by modifying the system variable CATALINA_OPTS. However,
this solves the problem temporarily. I get the same error when I work
for some more weeks on the development of the application.

Can anybody help me solve the problem?


You probably have a memory leak in your application.

The first thing to check thoroughly, and I do mean thoroughly, is that 
you are properly closing all database connections and related objects.
Don't assume that you have done so - check every location in the code 
carefully.


Depending on which OS  JVM version you have, (you didn't say - so we 
have to guess), there are tools you can use to examine the 
application's state and memory consumption.


Google memory leak, jmap and thread dump

p





Thanks in advance.
Suleyman

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