topic Re: Java Heap Size in Application Development and Automation Discussions

Java Heap Size

Former Member — Tue, 08 Sep 2015 10:56:43 GMT

Hi,

I am trying to run one script, but getting error as below

cordev04: /usr/sap/D3M/interfaces/ArticleNumberGenerator/javascheduler/src : ./mdmeanjobscheduler.sh

Exception in thread "main" java.lang.OutOfMemoryError: Java heap space

at com.sap.mdm.internal.valuetypes.TupleValueImpl.setFieldValue(TupleValueImpl.java:179)

at com.sap.mdm.internal.data.RecordLoader.convertToTupleValue(RecordLoader.java:454)

at com.sap.mdm.internal.data.RecordLoader.convertToTupleValue(RecordLoader.java:411)

at com.sap.mdm.internal.data.RecordLoader.getFieldData(RecordLoader.java:248)

at com.sap.mdm.internal.data.RecordImpl.loadData(RecordImpl.java:675)

at com.sap.mdm.internal.data.RecordsLoader.<init>(RecordsLoader.java:156)

at com.sap.mdm.internal.data.RecordsLoader.<init>(RecordsLoader.java:49)

at com.sap.mdm.internal.data.RecordResultSetHelper.convertFrom(RecordResultSetHelper.java:32)

at com.sap.mdm.data.commands.RetrieveLimitedRecordsCommand.executeImpl(RetrieveLimitedRecordsCommand.java:190)

at com.sap.mdm.commands.AbstractCommandBase.execute(AbstractCommandBase.java:129)

at MDMUtil.fetchMDMRecords(MDMUtil.java:322)

at ArticleAndEANGenerator.main(ArticleAndEANGenerator.java:181)

Please advise how to increase Java Heap Size. It Development system for MDM, OS is Unix.

Please also advise how to check Java Heap Size.

Thanks & Regards,

Aman

Re: Java Heap Size

S_Sriram — Thu, 10 Sep 2015 19:38:15 GMT

Hi Aman

Could you refer the SAP KBA for the error message "Exception in thread "main" java.lang.OutOfMemoryError: Java heap space "

1229267 - Exception in thread "main" java.lang.OutOfMemoryError: Java heap space , when running command line BIAR import

Re: Java Heap Size

former_member198633 — Fri, 11 Sep 2015 15:23:37 GMT

Hello Aman,

The OutOfMemory error was generated by the MDM application according to the error.

First I would like to recommend this note: 1289240 - How to deal with out of memory errors which explains the OOO errors in general. Maybe the issue is due to a memory leak, which will not be solved by simply increasing the heap size.

Anyway, the heap size can be increased in the Config tool -> click on the instance -> VM Parameters -> Memory tab -> set the initialHeapSize and the maxHeapSize to the desired (and same) value.

Best Regards,

Peter