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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-4474) Use variable length format to store the memstoreTS
Date Fri, 23 Sep 2011 23:25:26 GMT
Use variable length format to store the memstoreTS
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                 Key: HBASE-4474
                 URL: https://issues.apache.org/jira/browse/HBASE-4474
             Project: HBase
          Issue Type: Sub-task
            Reporter: Ted Yu
             Fix For: 0.92.0


HBASE-4344 introduced memstoreTS for KeyValues.

The following suggestion was from Kannan:
We should consider using variable length format to store the memstoreTS on disk. Also, at
the start of the flush, we can probably prune most of these timestamps to 0 since only the
ones that are higher than the current read point for all active scanners need to be maintained
at the fine grain level. So like often times, for a majority of the KVs, we might be able
to just write a 0. And hence, storing in varying width format would be an even bigger win.

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