load-testing issues

Lee Mathis wrote:

> we are in the process of load-testing out portal. We have been getting

> varied results none of which are very good. our portal failed in two

> seperate tests.. one failed at 65 users another failed at 230 users on

> different nights. we have noticed an error appearing in the webserver

> errors log file on our second portal at the exact time that the portal

> started failing. that is also the server that had to be restarted both

> times. I would like know if anyone has any clues as to what the fix

> might be for the following error message.

>

>

> [11/Oct/2001:21:34:55] failure ( 4970): Internal error: exception thrown

> from the servlet service function (uri=/DesktopServlet):

> java.lang.OutOfMemoryError, Stack: java.lang.OutOfMemoryError

The error message indicates basically the servlet ran out of memory.

Portal uses a desktop cache, profile cache, template cache and session

cache in addition to the memory allocated for a single user session.

The minimum memory allocated to a single user session is approximately

500k and increases more with bigger the size of the user desktop.

Take a look at the jvm12.conf and make sure you set the maximum heap

size to approximately 805 K and redo your performance testing.

Also do a java -version and check out the jvm version you are using, I

would recommend 1.2.2_07 for better jvm performance ..

Karthik !

at 2007-6-29 2:39:12 >