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From "Ashish Singhi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13153) enable bulkload to support replication
Date Thu, 03 Sep 2015 06:42:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14728576#comment-14728576
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Ashish Singhi commented on HBASE-13153:
---------------------------------------

bq. This seems a bit fragile. What if client crashes, etc ?
Client crashes (i.e. the source cluster RS goes down), znode will not be removed in this case.
So the replication for this znode will be retried by the source cluster RS. So the same hfile
will be loaded again in the peer cluster but that will not create any issue.

> enable bulkload to support replication
> --------------------------------------
>
>                 Key: HBASE-13153
>                 URL: https://issues.apache.org/jira/browse/HBASE-13153
>             Project: HBase
>          Issue Type: New Feature
>          Components: Replication
>            Reporter: sunhaitao
>            Assignee: Ashish Singhi
>             Fix For: 2.0.0
>
>         Attachments: HBase Bulk Load Replication.pdf
>
>
> Currently we plan to use HBase Replication feature to deal with disaster tolerance scenario.But
we encounter an issue that we will use bulkload very frequently,because bulkload bypass write
path, and will not generate WAL, so the data will not be replicated to backup cluster. It's
inappropriate to bukload twice both on active cluster and backup cluster. So i advise do some
modification to bulkload feature to enable bukload to both active cluster and backup cluster



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