JDeveloper 10.1.3.3.0 Java Memory errors

Hello,
I have been developing an ADF Application that contains a tree component that is used for navigation of a BOM structure. The BOM is not that large only 600 or so records and when I am testing for short intervals I have no problems. When the application is run for extended periods 15-20mins in both the embeded oc4j container and the Application server 10.1.3.4.0, it runs out of memory and in the case of the application server the instance is restarted.
I have tried to limit records retrieved, increase heap memory to ridiculous sizes (1024MB), configure the AM pooling settings and still this occurs. I guess I have memory leak or something but I tried to use JDeveloper debug functions to isolate and cannot find. Does anyone know how I can make the app release memory and stop restarting the application server? Any tips on how to find memory leaks?
Any help is greatly appreciated.
Thanks in advance,
Peter

This issue had to do with a known bug in the Java Hotspot sever and updating the version of Java to 1.5.0_17-b04 resolved this issue.

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Heap memory: allocated=141440K, used=105555K, max=699072K
None Heap memory: allocated=49312K, used=49018K, max=180224K
root 16388 2.5 43.0 2829220 1811772 ? Sl 20:11 3:43 java -Djava.awt.headless=true -Xmx768m -Xms128m -XX:MaxPermSize=128m -classpath .:lib/ohj-jewt.jar:lib/MRJAdapter.jar:lib/compat141.ja
Right now we are running it on the 64bit machine with -Xmx256m -Xms64m, and the memory is the same as on the 32bit one.
We also tried different memory configurations, but the result is the same. Java goes up to more the 2GB of memory used, while the heap is about 100MB - 400MB. In the output above you can see 1.8GB used, but this is at startup, after few hours it goes to more then 2GB - 2.5GB, then it crashes in at most few days, sometimes in few hours or even less.

Can the profiler see more then the heap? OK, I'll try to profile the server.
Servoy uses Tomcat 5.
The OS we run on is Debian. The 64bit machine is this:
JVM Information
java.vm.name=Java HotSpot(TM) 64-Bit Server VM
java.version=1.6.0_26
java.vm.info=mixed mode
java.vm.vendor=Sun Microsystems Inc.
Operating System Information
os.name=Linux
os.version=2.6.32-5-amd64
os.arch=amd64
and the current memory usage is this:
System Information
Heap memory: allocated=253440K, used=228114K, max=253440K
None Heap memory: allocated=112512K, used=112223K, max=180224K
, while the java process memory is this:
root 11629 6.9 44.4 2105640 1829808 hvc0 Sl 11:42 14:18 java -Djava.awt.headless=true -Xmx256m -Xms64m -XX:MaxPermSize=128m -classpath .:lib/ohj-jewt.jar:lib/MRJAdapter.jar:lib/compat141.jar:lib/commons-codec.jar:lib/commons-httpclient.jar:lib/activation.jar:lib/antlr.jar:lib/commons-collections.jar:lib/commons-dbcp.jar:lib/commons-fileupload-1.2.1.jar:lib/commons-io-1.4.jar:lib/commons-logging.jar:lib/commons-pool.jar:lib/dom4j.jar:lib/help.jar:lib/jabsorb.jar:lib/hibernate3.jar:lib/j2db.jar:lib/j2dbdev.jar:lib/jdbc2_0-stdext.jar:lib/jmx.jar:lib/jndi.jar:lib/js.jar:lib/jta.jar:lib/BrowserLauncher2.jar:lib/jug.jar:lib/log4j.jar:lib/mail.jar:lib/ohj-jewt.jar:lib/oracle_ice.jar:lib/server-bootstrap.jar:lib/servlet-api.jar:lib/wicket-extentions.jar:lib/wicket.jar:lib/wicket-calendar.jar:lib/slf4j-api.jar:lib/slf4j-log4j.jar:lib/joda-time.jar:lib/rmitnl.jar:lib/networktnl.jar com.servoy.j2db.server.ApplicationServer
About another app, I'm confused, because we do have another java app that uses much less:
root 1149 0.3 2.1 843312 86988 ? Sl 10:16 0:58 java -Xmx512m -Xms128m -cp noaa_server.zip server.WebServer
and for this one, the heap is this:
Memory: total: 129892352, free: 114666408, maximum: 518979584
So yes, this one looks better. It uses 15MB from heap and 80MB in total from ram.
But still, I don't get it, how can the process memory be affected while the heap is much low?
Edited by: 897090 on Nov 14, 2011 6:35 AM
Edited by: 897090 on Nov 14, 2011 6:39 AM
Edited by: 897090 on Nov 14, 2011 6:40 AM

Web Service data source report causes Java memory leak

Crystal Report designer fails to preview a report whose data source is a WSDL web service. This happens when the Java run time process has exceeded the memory limit specified in the CRConfig.xml file. The Java memory is never released by Crystal Reports until the Crystal Reports Designer is closed. Version is Crystal reports 2008 (product version 12.2.4.507).
This error also occurs in the Crystal Reports Viewer when used in a Microsoft .NET application (framework 3.5) referencing CrystalDecisions.CrystalReports.Engine.dll v12.0.2000.0, CrystalDecisions.Enterprise.Framework.dll v12.0.1100.0, CrystalDecisions.Enterprise.InfoStore.dll v12.0.1100.0, CrystalDecisions.ReportSource.dll v12.0.2000.0, CrystalDecisions.Shared.dll v12.0.2000.0
I load the ReportDocument object based on the location of the .rpt file and then set the ReportSource object of the CrystalReportViewer control:
string FullReportName = "TestFile.rpt";
ReportDocument reportDoc = new ReportDocument();
reportDoc.Load(FullReportName, OpenReportMethod.OpenReportByTempCopy);
this.crystalReportViewer1.ReportSource = reportDoc;
reportDoc.Close();
reportDoc.Dispose();
GC.Collect();
The code displays the report in the report viewer. However, every time the report is refreshed the Java runtime memory increases until the application cannot display the results. The error messages are "Failed to retrieve data from the database." followed by "Cannot determine the queries necessary to get data for this report. Details: Unexpected error". If you try to refresh the data once again the following errors occur: "Failed to retrieve data from the database." then "Cannot determine the queries necessary to get data for this report. Details: Schema file is invalid   Java heap space".
Increasing the java heap space in the CRConfig.xml file merely prolongues the onset of this error.
Is there a service pack or hot fix for this???
PLEASE HELP.

Many thanks for your help. This solved the issue for our .NET code, however the leak is still present in the report designer. I was also wondering if you could help further: because of the limits on the java memory process is there a way to ensure that a separate java process is started for each report that is loaded in my report viewers collection? Essentially the desktop application that i have created uses a tab control to display each type report, so each tab goes through the following code when displaying a report and closing a tab:
Is there a way to ensure that a different Java process is kicked off each time that I display a different report? My current code in c# always uses the same Java process so the memory ramps up. The code to load the report and then dispose of the report through closing the tab (and now the Java process) looks like this:
    private void LoadCrystalReport(string FullReportName)
      ReportDocument reportDoc = new ReportDocument();
      reportDoc.Load(FullReportName, OpenReportMethod.OpenReportByTempCopy);
      this.crystalReportViewer1.ReportSource = reportDoc;
    private void DisposeCrystalReportObject()
      if (crystalReportViewer1.ReportSource != null)
        ReportDocument report = (ReportDocument)crystalReportViewer1.ReportSource;
        foreach (Table table in report.Database.Tables)
          table.Dispose();
        report.Database.Dispose();
        report.Close();
        report.Dispose();
        GC.Collect();
Thanks

Diagnostics Workload Analysis - Java Memory Usage gives BI query input

Dears
I have set up diagnostics (aka root cause analysis) at a customer side and I'm bumping into the problem that on the Java Memory Usage tab in Workload analyis the BI query input overview is given
Sol Man 7.0 EHP1 SPS20 (ST component SP19)
Wily Introscope 8.2.3.5
Introscope Agent 8.2.3.5
Diagnostics Agent 7.20
When I click on the check button there I get the following:
Value "JAVA MEMORY USAGE" for variable "E2E Metric Type Variable" is invalid
I already checked multiple SAP Notes like the implementation of the latest EWA EA WA xml file for the Sol Man stack version.
I already reactivated BI content using report CCMS_BI_SETUP_E2E and it gave no errors.
The content is getting filled in Wily Introscope, extractors on Solution Manager are running and capturing records (>0).
Did anyone come accross this issue already?
ERROR MESSAGE:
Diagnosis
Characteristic value "JAVA MEMORY USAGE" is not valid for variable E2E Metric Type Variable.
Procedure
Enter a valid value for the characteristic. The value help, for example, provides you with suggestions. If no information is available here, then perhaps no characteristic values exist for the characteristic.
If the variable for 0DATE or 0CALDAY has been created and is being used as a key date for a hierarchy, check whether the hierarchies used are valid for this characteristic. The same is valid for variables that refer to the hierarchy version.
Notification Number BRAIN 643
Kind regards
Tom
Edited by: Tom Cenens on Mar 10, 2011 2:30 PM

Hello Paul
I checked the guide earlier on today. I also asked someone with more BI knowledge to take a look with me but it seems the root cause analysis data fetching isn't really the same as what is normally done in BI with BI cubes so it's hard to determine why the data fetch is not working properly.
The extractors are running fine, I couldn't find any more errors in the diagnostics agent log files (in debug mode) and I don't find other errors for the SAP system.
I tried reactivating the BI content but it seems to be fine (no errors). I reran the managed system setup which also works.
One of the problems I did notice is the fact that the managed SAP systems are half virtualized. They aren't completely virtualized (no seperate ip address) but they are using virtual hostnames which also causes issues with Root Cause Analysis as I cannot install only one agent because I cannot assign it to the managed systems and when I install one agent per SAP system I have the message that there are already agents reporting to the Enterprise Manager residing on the same host. I don't know if this could influence the data extractor. I doubt it because in Wily the data is being fetched fine.
The only thing that it not working at the moment is the workload analysis - java memory analysis tab. It holds the Key Performance Indicators for the J2EE engine (garbage collection %). I can see them in Wily Introscope where they are available and fine.
When I looked at the infocubes together with a BI team member, it seemed the infocube for daily stats on performance was getting filled properly (through RSA1) but the infocube for hourly stats wasn't getting filled properly. This is also visible in the workload analysis, data from yesterday displays fine in workload analysis overview for example but data from an hour ago doesn't.
I do have to state the Solution Manager doesn't match the prerequisites (post processing notes are not present after SP-stack update, SLD content is not up to date) but I could not push through those changes within a short timeframe as the Solution Manager is also used for other scenarios and it would be too disruptive at this moment.
If I can't fix it I will have to explain to the customer why some parts are not working and request them to handle the missing items so the prerequisites are met.
One of the notes I found described a similar issue and noted it could be caused due to an old XML file structure so I updated the XML file to the latest version.
The SAPOscol also throwed errors in the beginning strange enough. I had the Host Agent installed and updated and the SAPOscol service was running properly through the Host Agent as a service. The diagnostics agent tries to start SAPOscol in /usr/sap/<SID>/SMDA<instance number>/exe which does not hold the SAPOscol executable. I suppose it's a bug from SAP? After copying the SAPOscol from the Host Agent to the location of the SMD Agent the error disappeared. Instead the agent tries to start SAPOscol but then notices SAPOscol is already running and writes in the log that SAPOscol is already running properly and a startup is not neccesary.
To me it comes down the point where I have little faith in the scenario if the Solution Manager and the managed SAP systems are not maintained and up to date 100%. I could open a customer message but the first advice will be to patch the Solution Manager and meet the prerequisites.
Another pain point is the fact that if the managed SAP systems are not 100% correct in transaction SMSY it also causes heaps of issues. Changing the SAP system there isn't a fast operation as it can be included in numerous logical components, projects, scenario's (CHARM) and it causes disruption to daily work.
All in all I have mixed feelings about the implementation, I want to deliver a fully working scenario but it's near impossible due to the fact that the prerequisites are not met. I hope the customer will still be happy with what is delivered.
I sure do hope some of these issues are handled in Solution Manager 7.1. I will certainly mail my concerns to the development team and hope they can handle some or all of them.
Kind regards
Tom

JDeveloper 10.1.3.3.0 Java Memory errors

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