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From Shayan Pooya <sha...@liveve.org>
Subject 100% CPU utilization on idle HDFS Data Nodes
Date Tue, 03 Jun 2014 16:34:36 GMT
I have a three node HDFS cluster with a name-node.  There is absolutely no
IO going on this cluster or any jobs running on it and I just use it for
testing the Disco HDFS integration.
I noticed that two of the three data-nodes are using 100% CPU.  They have
been running for a long time (2 months) but with no jobs running on them
and almost no usage:

$ hadoop version
Hadoop 2.3.0
Subversion http://svn.apache.org/repos/asf/hadoop/common -r 1567123
Compiled by jenkins on 2014-02-11T13:40Z
Compiled with protoc 2.5.0
>From source with checksum dfe46336fbc6a044bc124392ec06b85

Is this a known bug?

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