[Building Sakai] WebDav (large) files OutOfMemoryError

Matthew Jones jonespm at umich.edu
Wed Mar 16 13:33:41 PDT 2011 

I wonder though also if this was related to
https://jira.sakaiproject.org/browse/SAK-10822 and more specifically
https://jira.sakaiproject.org/browse/SAK-16806. see that SAK-10822
specifically dealt with downloading but perhaps uploading still had to hold
the buffer for writing and wasn't fixed?

Increasing the heap would get you around the problem in the short term
though.

On Wed, Mar 16, 2011 at 4:28 PM, Matthew Jones <jonespm at umich.edu> wrote:

> Hi Nicolas,
>
> You need a lot more heap than you have configured, probably at least
> double. The install guide recommends 512/1024. Many installations go even
> bigger than that for production. Sakai can use the extra memory for caching
> and improved performance.
>
> export JAVA_OPTS="-server -Xms512m -Xmx1024m -XX:PermSize=128m -XX:MaxPermSize=512m -XX:NewSize=192m -XX:MaxNewSize=384m -Djava.awt.headless=true -Dhttp.agent=Sakai -Dorg.apache.jasper.compiler.Parser.STRICT_QUOTE_ESCAPING=false -Dsun.lang.ClassLoader.allowArraySyntax=true'
>
>
> "
>
>
> https://confluence.sakaiproject.org/display/DOC/Install+Guide+-+Binary+Install+%282.7%29
>
> On Wed, Mar 16, 2011 at 4:20 PM, Nicolas Lupien <niclupien at gmail.com>wrote:
>
>>  Hi,
>>
>> I am trying to upload small courses videos (~25M) via webdav and i get
>> "Internal servlet exception" from my webdav client.
>>
>> On the server logs i get:
>>
>>  javax.servlet.ServletException: L'ex<C3><A9>cution de la servlet a
>> lanc<C3><A9> une exception
>>         at
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
>>         at
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>>         at
>> org.sakaiproject.util.RequestFilter.doFilter(RequestFilter.java:646)
>>         at
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
>>         at
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>>         at
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
>>         at
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
>>         at
>> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:563)
>>         at
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
>>         at
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
>>         at
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
>>         at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
>>         at
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:879)
>>         at
>> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
>>         at
>> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
>>         at
>> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
>>         at
>> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
>>         at java.lang.Thread.run(Thread.java:662)
>> 2011-03-16 20:08:13,397 ERROR http-80-Processor18
>> org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/dav].[dav] -
>> "Servlet.service()" pour la servlet dav a g<C3><A9>n<C3><A9>r<C3><A9> une
>> except
>> ion
>> java.lang.OutOfMemoryError: Java heap space
>>         at java.util.Arrays.copyOf(Arrays.java:2786)
>>         at
>> java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:94)
>>         at
>> org.sakaiproject.content.impl.DbContentService$DbStorage.putResourceBodyDb(DbContentService.java:2191)
>>         at
>> org.sakaiproject.content.impl.DbContentService$DbStorage.commitResource(DbContentService.java:1745)
>>         at
>> org.sakaiproject.content.impl.BaseContentService.commitResourceEdit(BaseContentService.java:5639)
>>         at
>> org.sakaiproject.content.impl.BaseContentService.commitResource(BaseContentService.java:5548)
>>         at org.sakaiproject.dav.DavServlet.doPut(DavServlet.java:2779)
>>         at
>> org.sakaiproject.dav.DavServlet.doDispatch(DavServlet.java:1139)
>>         at org.sakaiproject.dav.DavServlet.service(DavServlet.java:1066)
>>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
>>         at
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
>>         at
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>>         at
>> org.sakaiproject.util.RequestFilter.doFilter(RequestFilter.java:646)
>>         at
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
>>         at
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>>         at
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
>>         at
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
>>         at
>> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:563)
>>         at
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
>>         at
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
>>         at
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
>>         at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
>>         at
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:879)
>>         at
>> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
>>         at
>> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
>>         at
>> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
>>         at
>> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
>>         at java.lang.Thread.run(Thread.java:662)
>>
>> --------
>>
>> Information :
>>
>> OS : Ubuntu 10.10 Server
>>
>> JAVA : JDK 1.6.0_22
>>
>> SGBD: MySQL 5.1
>>
>> JAVA_OPTS : "-Xms256m -Xmx512m -XX:PermSize=128m -XX:MaxPermSize=256m
>> -Djava.awt.headless=true -Dhttp.agent=Sakai
>> -Dorg.apache.jasper.compiler.Parser.STRICT_QUOTE_ESCAPING=false
>> -Dsun.lang.ClassLoader.allowArraySyntax=true -Duser.language=fr
>> -Duser.region=CA"
>>
>> my.conf :  max_allowed_packet = 100M
>>
>> sakai.properties : content.upload.max=100
>>
>> Nicolas Lupien
>>
>>
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