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From "Weiwei Yang (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HDFS-10588) False alarm in namenode log - ERROR - Disk Balancer is not enabled
Date Wed, 29 Jun 2016 05:44:45 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15354447#comment-15354447
] 

Weiwei Yang edited comment on HDFS-10588 at 6/29/16 5:44 AM:
-------------------------------------------------------------

Here is a patch to eliminate this error message. Let me know if this looks good. Thanks.
I did not include any test because this patch only remove an unintentional logging error,
no functional change.


was (Author: cheersyang):
Here is a patch to eliminate this error message. Let me know if this looks good. Thanks.

> False alarm in namenode log - ERROR - Disk Balancer is not enabled
> ------------------------------------------------------------------
>
>                 Key: HDFS-10588
>                 URL: https://issues.apache.org/jira/browse/HDFS-10588
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode, hdfs
>            Reporter: Weiwei Yang
>            Assignee: Weiwei Yang
>         Attachments: HDFS-10588.001.patch
>
>
> Noticed error message in namenode log 
> {code}2016-06-28 19:49:12,221 ERROR datanode.DiskBalancer (DiskBalancer.java:checkDiskBalancerEnabled(297))
- Disk Balancer is not enabled.
> {code}
> even with default configuration dfs.disk.balancer.enabled=false.This is triggered when
accessing datanode web UI, because {{DataNode#getDiskBalancerStatus}} calls the check.



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