September 2011
Intermediate to advanced
528 pages
19h 57m
English
Content preview from Oracle WebLogic Server 11g Administration Handbook
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Out of Memory Errors
Out of memory exceptions are some of the most common errors you come across when troubleshooting any JVM. Each Java process uses a memory area called the Java heap, and you set the maximum heap size using the JVM parameter -Xmx (MaxHeapSize). An out of memory in Java heap condition occurs when the server runs out of memory to allocate for a Java object. This may happen for a number of reasons, such as setting too low a value for the MaxHeapSize parameter, memory leaking, or an inappropriate garbage collection strategy.
When monitoring the JVM memory, the following is what the different heap components mean:
Allocated Java ...
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