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From "Nate Putnam (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-4356) Wide rows can cause OOME when compacting
Date Thu, 08 Sep 2011 21:43:09 GMT
Wide rows can cause OOME when compacting
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                 Key: HBASE-4356
                 URL: https://issues.apache.org/jira/browse/HBASE-4356
             Project: HBase
          Issue Type: Bug
    Affects Versions: 0.90.4
            Reporter: Nate Putnam


The scanner used for compaction doesn't limit the number of columns retrieved when doing a
compaction. If a row exists with tens of millions of rows it can fill all available memory
and crash the region server. 

It would be better if the scanner could page through the columns of wide rows when performing
a compaction. 

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