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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "GangliaMetrics" by BrianBockelman
Date Mon, 24 Nov 2008 15:09:57 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 BrianBockelman:
http://wiki.apache.org/hadoop/GangliaMetrics

------------------------------------------------------------------------------
    * The gmetad server
    * Localhost
  
- If you support multiple clusters you may wish to add data source lines for each cluster:
+ If you support multiple clusters, you may want to have Hadoop show up as a separate cluster.
 Add a data source lines for each cluster:
- In the gmetad.conf http://www.ibm.com/developerworks/wikis/display/WikiPtype/ganglia file
add a data_source of the form
+ In the gmetad.conf file, add a data_source of the form
+ {{{
  data_source "@MyHadoopCluster@" @GANGLIA@:8649
+ }}}
+ Source: http://www.ibm.com/developerworks/wikis/display/WikiPtype/ganglia
  
- Be aware that versions 0.18.1 and prior need to be patched in order to get Ganglia working;
refer to [https://issues.apache.org/jira/browse/HADOOP-3422 JIRA issue 3422].
+ Be aware that versions 0.18.1, 0.19.0, and prior need to be patched in order to get Ganglia
working; refer to [https://issues.apache.org/jira/browse/HADOOP-3422 JIRA issue 3422].
  
+ Additionally, the Ganglia protocol change significantly between Ganglia 3.0 and Ganglia
3.1 (i.e., Ganglia 3.1 is not compatible with Ganglia 3.0 clients).  This caused Hadoop to
not work with Ganglia 3.1; there is currently a patch available for this, [https://issues.apache.org/jira/browse/HADOOP-4675
HADOOP-4675].
+ 

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