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From "Lars Hofhansl (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4721) Retain Delete Markers after Major Compaction
Date Fri, 11 Nov 2011 20:56:56 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13148728#comment-13148728
] 

Lars Hofhansl commented on HBASE-4721:
--------------------------------------

I think the point Prakash was making is that we only have keep the deletes in the store files
(the delete markers), but not the deleted KVs (the puts that would be affected by the deletes),
since the replication would be using the logs anyway.

In your scenario above... As long as we keep the deletes at the target for a while, it won't
be a problem if the puts arrive later (both will retain the time stamp from the source).
That is what Prakash wants to achieve with this.

                
> Retain Delete Markers after Major Compaction
> --------------------------------------------
>
>                 Key: HBASE-4721
>                 URL: https://issues.apache.org/jira/browse/HBASE-4721
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Prakash Khemani
>            Assignee: Prakash Khemani
>
> There is a need to provide long TTLs for delete markers. This is useful when replicating
hbase logs from one cluster to another. The receiving cluster shouldn't compact away the delete
markers because the affected key-values might still be on the way.

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