java.lang.OutOfMemoryError: PermGen space

[xren]

Hi,

After I installed the 64 bit ebase 4.5.1 version for development, I often got the following exception: the server stop response.

java.lang.OutOfMemoryError: PermGen space

It happened to my production server as well.

The development server is the default setting.

The production server has maximum 2G ram
(I set in the install service script service.bat)
"%EXECUTABLE%" //US//%SERVICE_NAME% ++JvmOptions "-Djava.io.tmpdir=%CATALINA_BASE%\temp;-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager;-Djava.util.logging.config.file=%CATALINA_BASE%\conf\logging.properties" --JvmMs 1024 --JvmMx 2048

This really affect the application up time.

How can this be fixed?

Thanks,
Xiaoli

[Hovik]

Hi Xiaoli,
This is caused by insufficient PermGen space in Tomcat. To fix it:

1. Stop the service
2. Remove the service
3. Edit service.bat and add the following to the start of ++jvmoptions

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-DXX:MaxPermSize=512m
e.g.
"%EXECUTABLE%" //US//%SERVICE_NAME% ++JvmOptions "-DXX:MaxPermSize=512m -Djava.io.tmpdir=%CATALINA_BASE%\temp;-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager;-Djava.util.logging.config.file=%CATALINA_BASE%\conf\logging.properties" --JvmMs 1024 --JvmMx 2048

4. Install the service
5. Start the service

Alternatively, you can adjust the java settings of the service without remove/install steps, by using the graphical tool Tomcat7w.exe to adjust the installed service.

• Open a DOS window and navigate to <EbaseInstallDir>/UfsServer/tomcat/bin

• Enter the following:

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Tomcat7w.exe //ES//YourChosenServiceName

This utility allows all configuration parameters specified in service.bat to be adjusted.
Most importantly, it can be used to alter the java used by Tomcat.

• Click the Java tab and add the following on a new line:

Code: Select all

-XX:MaxPermSize=512m

• Restart the service

[xren]

Hello Hovik and anybody who can help.

I sent a form export file (UOHI-IntakeForm_2015-08-24.xml) to support@ebasetech.com with the associated scripts.

Can you help to audit this form and the script code and see if there is anything may cause memory leak or high memory usage?

Thanks,
Xiaoli