Allocation Failures workspace

This workspace summarizes all the heap-allocation failures that occurred within the Java™ virtual machine (JVM) over the current interval and that caused the JVM to initiate garbage collection.

This workspace displays data provided by the Allocation Failure attributes.

Note to Solaris and HP-UX users: Allocation-failure information is not recorded on these platforms; hence this workspace is always empty.

The predefined workspace contains the following items:

• Allocation Failure Elapsed Times bar chart, which displays the number of allocation failures during the current interval
• Heap Usage bar chart, which displays the heap usage for this JVM. The bar's fail over gives the allocation-failure ID number followed by a range of recording times. This allocation-failure number displays in the Allocation Failures report and associates each bar with that particular row within the report
• Allocation Failures report, which displays information about the heap-allocation failure that caused the JVM hosting the application server to invoke its garbage-collection routine. The Allocation Failures report includes the ASID field.

Accessing the Allocation Failures workspace

To access this workspace from the Garbage Collection Analysis workspace, complete the following step:

• From the Garbage Collection Analysis report, click the link icon to the left of any row; then, from the menu, click Allocation Failures. Note that in the Allocation Failure workspace, the ASID is displayed in the Allocation Failures report.