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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "Hbase/Troubleshooting" by AndrewPurtell
Date Thu, 26 Mar 2009 07:45:44 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for change notification.

The following page has been changed by AndrewPurtell:

The comment on the change is:
Add note about "-XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode"

   * In accordance with your hardware, tune your heap space / garbage collector settings in
the HBASE_OPTS variable of {{{$HBASE_CONF/hbase-env.sh}}}. Try the ''concurrent garbage collector''
{{{(-XX:+UseConcMarkSweepGC)}}} to avoid to stop the threads during GC. Read these articles
for more info about Hotspot GC settings
      * [http://java.sun.com/docs/hotspot/gc1.4.2/faq.html Garbage collector FAQ] Quick overview
      * [http://java.sun.com/javase/technologies/hotspot/gc/gc_tuning_6.html Tuning garbage
collector in Java SE 6]
+  * For Java SE 6, some users have had success with {{{ -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode

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