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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-5674) add support in HBase to overwrite hbase timestamp to a version number during major compaction
Date Sat, 11 Apr 2015 01:26:13 GMT

     [ https://issues.apache.org/jira/browse/HBASE-5674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell resolved HBASE-5674.
-----------------------------------
    Resolution: Incomplete
      Assignee:     (was: He Yongqiang)

> add support in HBase to overwrite hbase timestamp to a version number during major compaction
> ---------------------------------------------------------------------------------------------
>
>                 Key: HBASE-5674
>                 URL: https://issues.apache.org/jira/browse/HBASE-5674
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: He Yongqiang
>
> Right now, a millisecond-level timestamp is attached to every record. 
> In our case, we only need a version number (mostly it will be just zero etc). A millisecond
timestamp is too heavy to carry. We should add support to overwrite it to zero during major
compaction. 
> KVs before major compaction will remain using system timestamp. And this should be configurable,
so that we should not mess up if the hbase timestamp is specified by application.



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