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Java Heap Space - Out of memory issue

955690Aug 14 2012 — edited Aug 16 2012
Hi All,

We have 2 servers which has same heapsize setting (min and max 20 MB) and receives same load for processing.
But we receive heap memory issue in only one of the server.

Increasing the heap size only reduces the frequency of the occurence

What can be the possible causes ?


More details on the issue:*

The process invokes java calls via JNI and many instances of this process is configured with same settings in
both the servers. Both the servers are JDK1.6 configured.

The heap memory however is not reclaimed in one of the server. This issue is thrown while parsing XML to java object as shown below:

Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at org.apache.xmlbeans.impl.store.Cur$CurLoadContext.xmlns(Cur.java:3018)
at org.apache.xmlbeans.impl.store.Locale$SaxHandler.startElement(Locale.java:3209)
at org.apache.xmlbeans.impl.piccolo.xml.Piccolo.reportStartTag(Piccolo.java:1082)
at org.apache.xmlbeans.impl.piccolo.xml.PiccoloLexer.parseAttributesNS(PiccoloLexer.java:1822)
at org.apache.xmlbeans.impl.piccolo.xml.PiccoloLexer.parseOpenTagNS(PiccoloLexer.java:1521)
at org.apache.xmlbeans.impl.piccolo.xml.PiccoloLexer.parseTagNS(PiccoloLexer.java:1362)
at org.apache.xmlbeans.impl.piccolo.xml.PiccoloLexer.parseXMLNS(PiccoloLexer.java:1293)
at org.apache.xmlbeans.impl.piccolo.xml.PiccoloLexer.parseXML(PiccoloLexer.java:1261)
at org.apache.xmlbeans.impl.piccolo.xml.PiccoloLexer.yylex(PiccoloLexer.java:4808)
at org.apache.xmlbeans.impl.piccolo.xml.Piccolo.yylex(Piccolo.java:1290)
at org.apache.xmlbeans.impl.piccolo.xml.Piccolo.yyparse(Piccolo.java:1400)
at org.apache.xmlbeans.impl.piccolo.xml.Piccolo.parse(Piccolo.java:714)
at org.apache.xmlbeans.impl.store.Locale$SaxLoader.load(Locale.java:3435)
at org.apache.xmlbeans.impl.store.Locale.parse(Locale.java:706)
at org.apache.xmlbeans.impl.store.Locale.parseToXmlObject(Locale.java:690)
at org.apache.xmlbeans.impl.store.Locale.parseToXmlObject(Locale.java:677)
at org.apache.xmlbeans.impl.schema.SchemaTypeLoaderBase.parse(SchemaTypeLoaderBase.java:208)


Any inputs for resolving the issue will be of great help!

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Post Details

Locked on Sep 13 2012
Added on Aug 14 2012
#java, #java-native-interface-jni, #memory, #of
7 comments
11,391 views