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From "Leon Rosenberg" <rosenberg.l...@googlemail.com>
Subject Re: How to increase the tomcat heap memory
Date Tue, 30 Dec 2008 10:51:38 GMT
add following to your catalina.sh

export JAVA_OPTS="-mx256M -ms256M -XX:MaxPermSize=256m"

or, on windows, in catalina.bat

JAVA_OPTS="-mx256M -ms256M -XX:MaxPermSize=256m"

The values are only an example, the PermSize is optional if you have
many classes/jsps.

regards
Leon


On Tue, Dec 30, 2008 at 11:37 AM,  <ext-narsi.reddy@nokia.com> wrote:
>
>
> Hi
>
>              Basically  im running  jmeter  with 30 threads with 3
> requests with tomcat 6.0.18 , but tomcat is giving the Out of memory
> error ,
>  I want to increase Heap memory of tomcat , I tried  somany ways  but
> it did not worked for me , it is  almost  1 week  for me ,
>
> can somebody  pls help me how to increase the heap memory of tomcat
> 6.0.18 , and how can I check whether the memory is incresed or not ???
>
>
> Here is sever error  code ,
>
> Dec 30, 2008 3:54:18 PM org.apache.catalina.core.StandardWrapperValve
> invoke
> SEVERE: Servlet.service() for servlet WebAPI threw exception
> java.lang.OutOfMemoryError: Java heap space
>        at java.util.Arrays.copyOf(Arrays.java:2882)
>        at
> java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.jav
> a:100)
>        at
> java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:390)
>        at java.lang.StringBuilder.append(StringBuilder.java:119)
>        at
> com.nokia.buddyradar.parser.LocationXMLCreator.xmlToByteArray(LocationXM
> LCreator.java:189)
>        at
> com.nokia.buddyradar.webapi.WebApiServlet.convertXml(WebApiServlet.java:
> 154)
>        at
> com.nokia.buddyradar.webapi.WebApiServlet.doGet(WebApiServlet.java:109)
>        at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
>        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
>        at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
> tionFilterChain.java:290)
>        at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
> erChain.java:206)
>        at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
> e.java:233)
>        at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
> e.java:191)
>        at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
> :128)
>        at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
> :102)
>        at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
> java:109)
>        at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:2
> 86)
>        at
> org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.j
> ava:857)
>        at
> org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.proce
> ss(Http11AprProtocol.java:565)
>        at
> org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1509)
>        at java.lang.Thread.run(Thread.java:619)
> Dec 30, 2008 3:54:18 PM org.apache.catalina.core.StandardWrapperValve
> invoke
> SEVERE: Servlet.service() for servlet WebAPI threw exception
> java.lang.OutOfMemoryError: Java heap space
>        at java.util.Arrays.copyOf(Arrays.java:2786)
>        at
> java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:94)
>        at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)
>        at sun.nio.cs.StreamEncoder.implWrite(StreamEncoder.java:263)
>        at sun.nio.cs.StreamEncoder.write(StreamEncoder.java:106)
>        at java.io.OutputStreamWriter.write(OutputStreamWriter.java:190)
>        at java.io.BufferedWriter.flushBuffer(BufferedWriter.java:111)
>        at java.io.BufferedWriter.write(BufferedWriter.java:212)
>        at java.io.Writer.write(Writer.java:140)
>        at
> org.dom4j.io.XMLWriter.writeEscapeAttributeEntities(XMLWriter.java:1720)
>        at org.dom4j.io.XMLWriter.writeAttributes(XMLWriter.java:1489)
>        at org.dom4j.io.XMLWriter.writeElement(XMLWriter.java:937)
>        at org.dom4j.io.XMLWriter.writeNode(XMLWriter.java:1301)
>        at
> org.dom4j.io.XMLWriter.writeElementContent(XMLWriter.java:1086)
>        at org.dom4j.io.XMLWriter.writeElement(XMLWriter.java:954)
>        at org.dom4j.io.XMLWriter.writeNode(XMLWriter.java:1301)
>        at org.dom4j.io.XMLWriter.write(XMLWriter.java:344)
>        at
> com.nokia.buddyradar.parser.LocationXMLCreator.xmlToByteArray(LocationXM
> LCreator.java:186)
>        at
> com.nokia.buddyradar.webapi.WebApiServlet.convertXml(WebApiServlet.java:
> 154)
>        at
> com.nokia.buddyradar.webapi.WebApiServlet.doGet(WebApiServlet.java:109)
>        at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
>        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
>        at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
> tionFilterChain.java:290)
>        at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
> erChain.java:206)
>        at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
> e.java:233)
>        at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
> e.java:191)
>        at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
> :128)
>        at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
> :102)
>        at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
> java:109)
>        at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:2
> 86)
>        at
> org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.j
> ava:857)
>        at
> org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.proce
> ss(Http11AprProtocol.java:565)
>  im in users block of readxml
> datasource connection
> jdbc:mysql://localhost:3306/extravert?autoReconnect=true,
> UserName=root@localhost, MySQL-AB JDBC Driver
> datasource connection
> jdbc:mysql://localhost:3306/extravert?autoReconnect=true,
> UserName=root@localhost, MySQL-AB JDBC Driver
>  inserted in to location
> tablejdbc:mysql://localhost:3306/extravert?autoReconnect=true,
> UserName=root@localhost, MySQL-AB JDBC Driver
> datasource connection
> jdbc:mysql://localhost:3306/extravert?autoReconnect=true,
> UserName=root@localhost, MySQL-AB JDBC Driver
>
>
>
> Thanks and Regards
>
> Narsi Reddy CH
>

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