Databases
StackOverflow2013
Postsdbo
POHeap Dump Analysis needs your Attention
Body
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHeap Dump Analysis needs your Attention
    text
    copied!<p>I have a weblogic server that throws OOM error when it starts. Because of which my application is not behaving properly.</p> <p>I have collected Heap dump [Snap Shot below], however, I am not good at understanding the output.</p> <p><a href="http://img51.imageshack.us/img51/7470/heapanalysis.jpg" rel="nofollow noreferrer">Image Snap: http://img51.imageshack.us/img51/7470/heapanalysis.jpg</a></p> <p>Can you please help understand why am i getting the OOM errors ? Below are the JVM arguments.</p> <pre><code> Starting WLS with line: /java -server -Xms1536m -Xmx1536m -XX:PermSize=512m -XX:MaxPermSize=512m -XX:NewSize=512m -XX:MaxNewSize=512m -XX:SurvivorRatio=6 -Xnoclassgc -XX:+DisableExplicitGC -verbose:gc -XX:+UseParNewGC -XX:+CMSParallelRemarkEnabled -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:+CMSIncrementalMode -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+HeapDumpOnOutOfMemoryError </code></pre> <p>Below is the errors seen in the logs.</p> <pre><code>&gt; java.lang.OutOfMemoryError: Java heap space Dumping heap to &gt; java_pid16660.hprof ... &gt; 115.814: [GC [1 CMS-initial-mark: 743854K(1048576K)] 743854K(1507328K), 0.0050472 secs] &gt; 115.819: [CMS-concurrent-mark-start] Heap dump file created [778142756 bytes in 3.935 secs] &lt;Jan 20, 2013 10:56:05 PM PST&gt; &lt;Critical&gt; &gt; &lt;WorkManager&gt; &lt;BEA-002911&gt; &lt;WorkManager weblogic.kernel.System failed &gt; to schedule a request due to java.lang.OutOfMemoryError: Java heap &gt; space java.lang.OutOfMemoryError: Java heap space &gt; &gt; &lt;Jan 20, 2013 10:56:05 PM PST&gt; &lt;Critical&gt; &lt;WorkManager&gt; &lt;BEA-002911&gt; &lt;WorkManager weblogic.kernel.System failed to schedule a request due &gt; to java.lang.ArrayIndexOutOfBoundsExcept ion: 26214404 &gt; java.lang.ArrayIndexOutOfBoundsException: 26214404 &gt; at weblogic.work.CalendarQueue.add(CalendarQueue.java:39) &gt; at weblogic.work.RequestManager.addToPriorityQueue(RequestManager.java:263) &gt; at weblogic.work.RequestManager.executeIt(RequestManager.java:235) &gt; at weblogic.work.ServerWorkManagerImpl.schedule(ServerWorkManagerImpl.java:142) &gt; at weblogic.corba.cos.transactions.RecoveryRegistrar.run(RecoveryRegistrar.java:47) &gt; Truncated. see log file for complete stacktrace </code></pre>
 

Querying!

 
Guidance
An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload