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https://issues.apache.org/jira/browse/AMBARI-15189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15174222#comment-15174222
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Dmitry Lysnichenko commented on AMBARI-15189:
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Opened AMBARI-15252
> Set dfs.allow.truncate = True on HDFS during HAWQ install or add service
> ------------------------------------------------------------------------
>
> Key: AMBARI-15189
> URL: https://issues.apache.org/jira/browse/AMBARI-15189
> Project: Ambari
> Issue Type: Improvement
> Components: ambari-server
> Affects Versions: trunk, 2.2.0
> Reporter: Lav Jain
> Assignee: Lav Jain
> Fix For: 2.3.0, 2.2.2
>
> Attachments: AMBARI-15189.branch22-2.patch,
> AMBARI-15189.branch22.patch, AMBARI-15189.patch
>
>
> Setting this param to True is Mandatory, otherwise, failed transactions in
> HAWQ might generate too many small files and will impact performance.
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