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Subject: OGSA-DAI system protection

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From: Michael Sutter (Michael.Sutter@ipe.fzk.de)
Date: Apr 05, 2006 14:16

Hello all,

I have a problem when using OGSA-DAI WSRF 2.1 under GT 4.0.1 container.
After starting the container everything works fine when using the
SQLQuery Activity. The problem is, when running the server several days
and query the database over OGSA-DAI several times I always get a
OGSA-DAI system protection exception as shown below. The only way to get
OGSA-DAI working is stopping and restarting the GT4 container. After
restart everything works fine again, with equal SQL queries I used when
I got the system protection exception, so the SQL queries are right. The
same error occurs when using OGSA-DAI several times after restart, but i
can't reproduce when the error appears.

I don`t know why this happens, if anybody has a idea please tell it to me.

Thanks and Regards
Michael

2006-04-05 12:49:34,410 ERROR common.MemoryUtilities [Thread-2598,<init>:36] OGSA-DAI system protection: Adding 0 bytes to the Java stack may cause a java.lang.OutOfMemoryError
uk.org.ogsadai.common.exception.common.CommonSystemException: OGSA-DAI system protection: Adding 0 bytes to the Java stack may cause a java.lang.OutOfMemoryError
        at uk.org.ogsadai.common.MemoryUtilities.checkMemory(MemoryUtilities.java:159)
        at uk.org.ogsadai.common.MemoryUtilities.checkMemory(MemoryUtilities.java:59)
        at uk.org.ogsadai.activity.Activity.process(Activity.java:333)
        at uk.org.ogsadai.activity.RequestProcessor.processActivity(RequestProcessor.java:107)
        at uk.org.ogsadai.activity.RequestProcessor.process(RequestProcessor.java:76)
        at uk.org.ogsadai.activity.ActivityPipelineRequestComponent.process(ActivityPipelineRequestComponent.java:107)
        at uk.org.ogsadai.engine.controlflow.FlowRequestComponent.process(FlowRequestComponent.java:73)
        at uk.org.ogsadai.activity.ActivityRequest$1.run(ActivityRequest.java:306)
2006-04-05 12:49:34,412 ERROR activity.Activity [Thread-2598,<init>:148] OGSA-DAI system protection: Adding 0 bytes to the Java stack may cause a java.lang.OutOfMemoryError
2006-04-05 12:49:34,413 ERROR activity.Activity [Thread-2598,setError:390] Error processing activity ogsadai-10a69a9edb1 (uk.org.ogsadai.activity.ResultActivity) : OGSA-DAI system protection: Adding 0 bytes to the Java stack may cause a java.lang.OutOfMemoryError

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