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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "GangliaMetrics" by DominicDunlop
Date Tue, 21 Jun 2011 15:11:28 GMT
Dear Wiki user,

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

The "GangliaMetrics" page has been changed by DominicDunlop:
http://wiki.apache.org/hadoop/GangliaMetrics?action=diff&rev1=6&rev2=7

Comment:
Note that Ganglia 3.1 support now in main line. Regret I could not work out exactly when patch
applied. Help, someone?

  
  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]].
+ 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 a patch available for this, [[https://issues.apache.org/jira/browse/HADOOP-4675|HADOOP-4675]].
As of November 2010, this patch has been rolled into the mainline for 0.20.2 and later. To
use the Ganglia 3.1 protocol in place of the 3.0, substitute {{{org.apache.hadoop.metrics.ganglia.GangliaContext31}}}
for {{{org.apache.hadoop.metrics.ganglia.GangliaContext}}} in the hadoop-metrics.properties
lines above.
  

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