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From "Gary Helmling (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-1949) KeyValue expiration by Time-to-Live during major compaction is broken
Date Fri, 30 Oct 2009 22:18:01 GMT
KeyValue expiration by Time-to-Live during major compaction is broken
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                 Key: HBASE-1949
                 URL: https://issues.apache.org/jira/browse/HBASE-1949
             Project: Hadoop HBase
          Issue Type: Bug
          Components: regionserver
    Affects Versions: 0.20.1
            Reporter: Gary Helmling


During a major compaction on a region in a column family with a configured TTL, it looks like
all KeyValues in a row after the first expired KeyValue are skipping and thrown out of the
newly written file (regardless of whether the would have been expired or not).

The StoreScanner is skipping to the next row, even when other columns with a non-expirable
timestamp exists.  Unless I'm misunderstanding it, it seems like it should just seek to the
next column instead.  I discovered this when altering a table to lower the TTL for a column
family and force the expiration of some data which led to the entire row being expired in
some instances.


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