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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-13323) Audit behavior heterogenous node capacity
Date Tue, 24 Mar 2015 16:22:53 GMT
Nick Dimiduk created HBASE-13323:
------------------------------------

             Summary: Audit behavior heterogenous node capacity
                 Key: HBASE-13323
                 URL: https://issues.apache.org/jira/browse/HBASE-13323
             Project: HBase
          Issue Type: Task
          Components: Balancer
            Reporter: Nick Dimiduk


>From the thread "introducing nodes w/ more storage" (http://search-hadoop.com/m/DHED4azyle2),
we should have a look at what happens when nodes of varying data density are used in a single
cluster. The user would expect that nodes be filled according to their capacity, meaning an
"even distribution" looks like all nodes at the same pct use. This behavior is probably in
the intersection of hbase balancer and hdfs balancer. Probably this is made more complex by
recent HDFS features such as HDFS-5682.

After investigation, let's fix it up to work better (if it's broken), and document the behavior
in our awesome book.



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