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Posted to issues@hbase.apache.org by "Lars Hofhansl (JIRA)" <ji...@apache.org> on 2015/07/02 23:27:05 UTC

[jira] [Created] (HBASE-14014) Explore row-by-row grouping options

Lars Hofhansl created HBASE-14014:
-------------------------------------

             Summary: Explore row-by-row grouping options
                 Key: HBASE-14014
                 URL: https://issues.apache.org/jira/browse/HBASE-14014
             Project: HBase
          Issue Type: Sub-task
            Reporter: Lars Hofhansl


See discussion in parent.

We need to considering the following attributes of WALKey:
* The cluster ids
* Table Name
* write time (here we could use the latest of any batch)
* seqNum

As long as we preserve these we can rearrange the cells between WALEdits. Since seqNum is unique this will be a challenge. Currently it is not used, but we shouldn't design anything that prevents us guaranteeing better ordering guarantees using seqNum.




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