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From "Elliott Clark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8580) Ensure that there are 3 replicas when Flushing or Compacting
Date Tue, 21 May 2013 00:23:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13662501#comment-13662501

Elliott Clark commented on HBASE-8580:

Both I believe, but you are correct Datanodes are the most relevant here.
> Ensure that there are 3 replicas when Flushing or Compacting
> ------------------------------------------------------------
>                 Key: HBASE-8580
>                 URL: https://issues.apache.org/jira/browse/HBASE-8580
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Elliott Clark
> It is possible that datanodes in a DFS pipeline can be dropped.  When this happens it
possible for there to be fewer than the number of replicas expected.  After a close on the
file the namenode tries to re-replicate the file. On flush and compaction we should block
waiting for the number of datanodes reporting that they have the needed blocks to be 3.

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