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https://issues.apache.org/jira/browse/HBASE-14014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15042070#comment-15042070
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Sean Busbey commented on HBASE-14014:
-------------------------------------
Parent was HBASE-12988
> Explore row-by-row grouping options
> -----------------------------------
>
> Key: HBASE-14014
> URL: https://issues.apache.org/jira/browse/HBASE-14014
> Project: HBase
> Issue Type: Improvement
> Components: Replication
> 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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