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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15669) HFile size is not considered correctly in a replication request
Date Wed, 20 Apr 2016 09:48:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15249567#comment-15249567
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Anoop Sam John commented on HBASE-15669:
----------------------------------------

bq.The same thing came up when we were working on the main jira (HBASE-13153), but we are
not sure if in future an edit can contain a mix of mutation and bulk load marker cells. If
that happens then it will break the replication. So to avoid that we are handling it in that
way
How that will be possible really?  I dont think so..  It will be of great help while handling
the normal WALEdits (for normal writes).  That may contain many cells and the Q check can
be limited to 1 per edit. Now it will be so many compares to handle the bulk load replication.
 We even had a boolean to enable the bulk load replication right?  Even that check also not
done here?    We should not be adding so many unwanted compare ops.

> HFile size is not considered correctly in a replication request
> ---------------------------------------------------------------
>
>                 Key: HBASE-15669
>                 URL: https://issues.apache.org/jira/browse/HBASE-15669
>             Project: HBase
>          Issue Type: Bug
>          Components: Replication
>    Affects Versions: 1.3.0
>            Reporter: Ashish Singhi
>            Assignee: Ashish Singhi
>             Fix For: 2.0.0, 1.3.0, 1.4.0
>
>         Attachments: HBASE-15669.patch
>
>
> In a single replication request from source cluster a RS can send either at most {{replication.source.size.capacity}}
size of data or {{replication.source.nb.capacity}} entries. 
> The size is calculated by considering the cells size in each entry which will get calculated
wrongly in case of bulk loaded data replication, in this case we need to consider the size
of hfiles not cell.



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