Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm
Precedence: bulk
Date: Thu, 29 Mar 2012 18:02:22 +0000 (UTC)
From: "He Yongqiang (Created) (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: 
 <1839311683.33865.1333044142282.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] [Created] (HBASE-5674) add support in HBase to overwrite
 hbase timestamp to a version number during major compaction
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

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
            Assignee: 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.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira