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From "Sean Busbey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14014) Explore row-by-row grouping options
Date Fri, 04 Dec 2015 19:39:11 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15042070#comment-15042070
] 

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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