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From "Nicolas Spiegelberg (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-3232) Fix KeyOnlyFilter + Add Value Length
Date Sat, 13 Nov 2010 04:42:13 GMT
Fix KeyOnlyFilter + Add Value Length
------------------------------------

                 Key: HBASE-3232
                 URL: https://issues.apache.org/jira/browse/HBASE-3232
             Project: HBase
          Issue Type: Bug
            Reporter: Nicolas Spiegelberg
            Assignee: Nicolas Spiegelberg
            Priority: Blocker
             Fix For: 0.90.0


HBASE-3211 altered filter code to mutate KeyValues.  What could go wrong?  Well, your scan
could mess up because the KVHeap compare functions don't work properly.  If we're going to
soft mutate KVs in filter code, we also need to soft copy the KV before filtering.  This was
found while adding the ability to have KeyOnlyFilter have the option to return the Value's
length.  This is useful for grouping your reduce tasks into equal-sized blocks.

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