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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-10645) Adjust block replication for clusters with less than 3 DataNodes
Date Mon, 27 Apr 2015 01:53:38 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-10645?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14513413#comment-14513413
] 

Hadoop QA commented on AMBARI-10645:
------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12728286/AMBARI-10645-002.patch
  against trunk revision .

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/Ambari-trunk-test-patch/2523//console

This message is automatically generated.

> Adjust block replication for clusters with less than 3 DataNodes
> ----------------------------------------------------------------
>
>                 Key: AMBARI-10645
>                 URL: https://issues.apache.org/jira/browse/AMBARI-10645
>             Project: Ambari
>          Issue Type: Improvement
>          Components: ambari-server
>    Affects Versions: 2.2.0
>            Reporter: sam liu
>         Attachments: AMBARI-10645-001.patch, AMBARI-10645-002.patch
>
>
> When we install on a cluster with less than 3 DataNodes, the replication factor is set
to 3 anyway. It does not make sense. We should change this value to a lower number  to avoid
missing replicas(for example, if there is just one DN, set the replication factor to 1).



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