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From "Lars Hofhansl (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-5096) Replication does not handle deletes correctly.
Date Tue, 27 Dec 2011 01:48:30 GMT

     [ https://issues.apache.org/jira/browse/HBASE-5096?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lars Hofhansl updated HBASE-5096:
---------------------------------

       Resolution: Fixed
    Fix Version/s: 0.92.1
                   0.94.0
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

Committed to trunk and 0.92.

I think this is major enough to be backported to 0.90?
(suddenly deleted rows will pop up again at the replicated site)
                
> Replication does not handle deletes correctly.
> ----------------------------------------------
>
>                 Key: HBASE-5096
>                 URL: https://issues.apache.org/jira/browse/HBASE-5096
>             Project: HBase
>          Issue Type: Sub-task
>          Components: replication
>    Affects Versions: 0.94.0, 0.92.1
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>             Fix For: 0.94.0, 0.92.1
>
>         Attachments: 5096.txt
>
>
> Teruyoshi Zenmyo discovered this problem.
> The problem turns out to be this code in ReplicationSink.java:
> {code}
> if (kvs.get(0).isDelete()) {
> ...
>   if (kv.isDeleteFamily()) {
>     delete.deleteFamily(kv.getFamily());
>   } else if (!kv.isEmptyColumn()) {
>     delete.deleteColumn(kv.getFamily(), kv.getQualifier());
>   }
> }
> ...
> {code}
> So the code deal with families delete markers and then assumes that if it's not a family
delete marker it must have been a version delete marker.
> (deleteColumn sets a version delete marker, deleteColumns sets a column delete marker).
> I.e. column delete markers are not replicated correctly.

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