jboss server 4.0 OutOFMemory error

[pk3269]

Using jboss 4.0.5 server, I am working on a Java/JSP application which is heavily database dependent. I need to export a report's data in xls file, for this I am using a utility jar file.

PROBLEM: While exporting report to excel file, when the data is less than 9000 records the file is easily exported. But the system aborts the process when the record strength is more than that.

If I write a csv file also the same problem exists. It seams that the problem is due to JVM heap size, see the log below-

2009-08-11 06:31:08,109 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/qhWRA].[ReportServlet]] Servlet.service() for servlet ReportServlet threw exception

java.lang.OutOfMemoryError: Java heap space


I need a solution to overcome this issue.

I have already tried the following options:

OPTION 1. By changing the statement in run.conf file at location /jboss-4.0.5/bin as follows:

By replacing

if [ "x$JAVA_OPTS" = "x" ] then

JAVA_OPTS="-Xms256m -Xmx1024m -Duser.timezone=America/Los_Angeles"

JAVA_OPTS="$JAVA_OPTS -Dsun.rmi.dgc.client.gcInterval=3600000"

fi



with



JAVA_OPTS="-Xms1024m -Xmx1024m -Duser.timezone=America/Los_Angeles"

JAVA_OPTS="$JAVA_OPTS -Dsun.rmi.dgc.client.gcInterval=3600000"





OPTION 2. By changing the statement in run.bat file at location /appl/jboss-4.0.5/bin as follows:



By replacing



set JAVA_OPTS=%JAVA_OPTS% -Xms128m -Xmx512m



with



set JAVA_OPTS=%JAVA_OPTS% -Xms1024m –Xmx1024m



OR



set JAVA_OPTS=%JAVA_OPTS% -Xms1024m -Xmx1024m

set JAVA_OPTS=%JAVA_OPTS% -XX:PermSize=1024m -XX:MaxPermSize=1024m





but no solution found.



Please if anybody can help....



Thanks and Regards,
Pawan Kumar

[peterj]

You never said if you were running Linux or Windows. The run.bat file is used only on Windows and the run.conf file only on Linux.

I will make a guess based on your use of '/' as a path separator that you are running on Linux. Changing the -Xm size is insufficient - you need to increase the -Xm size. Try using -Xm1500m in run.conf.

[pk3269]

Thanks Peter.

We are using Linux.

We have tried for -Xm2048m also.

Is there any other option/solution to this?

Thanks in advance.
Pawan.