Lars Hofhansl created HBASE-14014:
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             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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