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From "Alexander Denissov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-15449) HAWQ hdfs-client / output.replace-datanode-on-failure should be set to true by default
Date Fri, 18 Mar 2016 01:55:33 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-15449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alexander Denissov updated AMBARI-15449:
----------------------------------------
    Fix Version/s: 2.2.2
           Status: Patch Available  (was: Open)

> HAWQ hdfs-client / output.replace-datanode-on-failure should be set to true by default
> --------------------------------------------------------------------------------------
>
>                 Key: AMBARI-15449
>                 URL: https://issues.apache.org/jira/browse/AMBARI-15449
>             Project: Ambari
>          Issue Type: Bug
>            Reporter: Alexander Denissov
>            Assignee: Alexander Denissov
>            Priority: Minor
>             Fix For: 2.2.2
>
>
> On large cluster, replace-datanode-on-failure should be set to true, but on small clusters
(developers environment or testing environment), it should be set to false, otherwise, if
datanodes are overloaded, it will report error. This is the reason it was set to false by
default earlier. 
> Ambari should set it to true when cluster size > 4, otherwise set it to false.



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