[Building Sakai] Announcements: java.lang.OutOfMemoryError

[Yzelle, Sonette]

This message (and attachments) is subject to restrictions and a disclaimer. Please refer to http://www.unisa.ac.za/disclaimer for full details.
________________________________

Sorry,

We are running
Sakai 2.6.2,
tomcat 5.5.26
java version "1.5.0_18"

Sonette

Sonette Yzelle
Analyst Developer
ICT
UNISA
South Africa
email: syzelle at unisa.ac.za<mailto:syzelle at unisa.ac.za>

From: sakai-dev-bounces at collab.sakaiproject.org [mailto:sakai-dev-bounces at collab.sakaiproject.org] On Behalf Of Mustansar Mehmood
Sent: 15 July 2010 03:36 PM
To: sakai-dev at collab.sakaiproject.org
Subject: Re: [Building Sakai] Announcements: java.lang.OutOfMemoryError

What version of Sakai, Java and tomcat are you running ?
On 07/15/2010 08:22 AM, Yzelle, Sonette wrote:
This message (and attachments) is subject to restrictions and a disclaimer. Please refer to http://www.unisa.ac.za/disclaimer for full details.
________________________________

Good day,

When we try to send out an announcement to 15000 students with 3 attachments we get the error below?
Has anyone else experienced something similar with announcements?
We have googled and see that it is VM that is not enough and that we might have a memory leak?
When we send announcements to smaller groups (with attachments) of students there is no error.

We would appreciate your input on whether we must increase our VM memory or if you think there might be a problem with the way threads are opened and closed?

Thanking you in advance.
Regards
Sonette
This information will automatically be included in your bug report.
org.sakaiproject.portal.api.PortalHandlerException: org.sakaiproject.tool.api.ToolException
    at org.sakaiproject.portal.charon.SkinnableCharonPortal.doGet(SkinnableCharonPortal.java:768)
caused by: org.sakaiproject.tool.api.ToolException
    at org.sakaiproject.cheftool.ToolServlet.doGet(ToolServlet.java:227)
caused by: java.lang.reflect.InvocationTargetException
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
caused by: java.lang.OutOfMemoryError: unable to create new native thread
    at java.lang.Thread.start0(Native Method)
    at java.lang.Thread.start(Thread.java:574)
    at com.sun.jndi.ldap.Connection.<init>(Connection.java:212)
    at com.sun.jndi.ldap.LdapClient.<init>(LdapClient.java:118)
    at com.sun.jndi.ldap.LdapClient.getInstance(LdapClient.java:1578)
    at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2605)
    at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:284)
    at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(LdapCtxFactory.java:175)
    at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(LdapCtxFactory.java:193)
    at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(LdapCtxFactory.java:136)
    at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:66)
    at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667)
    at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:247)
    at javax.naming.InitialContext.init(InitialContext.java:223)
    at javax.naming.ldap.InitialLdapContext.<init>(InitialLdapContext.java:134)
    at za.ac.unisa.lms.providers.user.ad.StudentDirectoryProvider.getGCCtx(StudentDirectoryProvider.java:349)
    at za.ac.unisa.lms.providers.user.ad.ADDirectoryProvider.findUser(ADDirectoryProvider.java:234)
    at za.ac.unisa.lms.providers.user.ad.ADDirectoryProvider.findUserDn(ADDirectoryProvider.java:299)
    at za.ac.unisa.lms.providers.user.ad.ADDirectoryProvider.userExists(ADDirectoryProvider.java:461)
    at za.ac.unisa.lms.providers.user.UNISADirectoryProvider.getDisplayName(UNISADirectoryProvider.java:214)
    at org.sakaiproject.user.impl.BaseUserDirectoryService$BaseUserEdit.getDisplayName(BaseUserDirectoryService.java:2179)
    at org.sakaiproject.announcement.tool.AnnouncementAction$AnnouncementWrapper.<init>(AnnouncementAction.java:427)
    at org.sakaiproject.announcement.tool.AnnouncementAction$AnnouncementWrapper.wrapList(AnnouncementAction.java:676)
    at org.sakaiproject.announcement.tool.AnnouncementAction$AnnouncementWrapper.access$400(AnnouncementAction.java:355)
    at org.sakaiproject.announcement.tool.AnnouncementAction.getMessages(AnnouncementAction.java:1470)
    at org.sakaiproject.announcement.tool.AnnouncementAction.buildMainPanelContext(AnnouncementAction.java:906)
    at sun.reflect.GeneratedMethodAccessor1014.invoke(null:-1)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:585)
    at org.sakaiproject.cheftool.VelocityPortletPaneledAction.toolModeDispatch(VelocityPortletPaneledAction.java:401)
    at org.sakaiproject.cheftool.ToolServlet.doGet(ToolServlet.java:227)
    at org.sakaiproject.cheftool.VelocityPortletPaneledAction.doGet(VelocityPortletPaneledAction.java:1014)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
    at org.sakaiproject.vm.ComponentServlet.service(ComponentServlet.java:56)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
    at org.sakaiproject.util.RequestFilter.doFilter(RequestFilter.java:565)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:679)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:364)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
    at org.sakaiproject.tool.impl.ActiveToolComponent$MyActiveTool.forward(ActiveToolComponent.java:486)
    at org.sakaiproject.portal.charon.SkinnableCharonPortal.forwardTool(SkinnableCharonPortal.java:1216)
    at org.sakaiproject.portal.charon.handlers.ToolHandler.doTool(ToolHandler.java:188)
    at org.sakaiproject.portal.charon.handlers.ToolHandler.doGet(ToolHandler.java:93)
    at org.sakaiproject.portal.charon.SkinnableCharonPortal.doGet(SkinnableCharonPortal.java:768)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
    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:616)
    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:174)
    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.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
    at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
    at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
    at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
    at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
    at java.lang.Thread.run(Thread.java:595)


user: bfab32cb-2ab9-46c6-80e4-ee7664cbabf4

usage-session: a5ae0727-081d-44a4-a1a4-a7faf90c683f

time: 12-Jul-2010 08:37:54



Klarissa Engelbrecht
Module Leader EUP1501
End-user Computing Practical Tuition Team
School of Computing
College of Science, Engineering and Technology
Tel.: +27 12 429 6878/6653

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Mustansar Mehmood

Educational System Developer& Integrator



Information Technology

6100 Main St. MS 119

Houston Texas 77005



Phone:(713)348-2523

Fax  :(713)348 6099

email:mustansar at rice.edu<mailto:email:mustansar at rice.edu>











I have yet to see any problem, however complicated, which, when,you  looked at it in the right way, did not become still more complicated.

    -- Poul Anderson


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