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Troubleshooting Long Garbage Collection Pauses (Doc ID 1575592.1)

Last updated on OCTOBER 21, 2019

Applies to:

Java SE JDK and JRE - Version 1.5.0 and later
Information in this document applies to any platform.

Purpose

To provide guidance on solving long pauses during garbage collection (GC) with the HotSpot JVM.  Originally posted to Poonam Bajaj's blog on 31 July 2013.

Troubleshooting Steps

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In this Document
Purpose
Troubleshooting Steps
 Causes
 1. Fragmentation in the heap
 2. Other OS activities happening at the time of GC
 3. Insufficient heap size
 4. Bug in the JVM
 5. Explicit System GCs
 How to approach the problem

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