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Date: Wed, 21 Jun 2017 21:50:00 +0000 (UTC)
From: "Arpit Agarwal (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.13080943.1497908648000.74313.1498081800202@Atlassian.JIRA>
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Subject: [jira] [Commented] (HDFS-11998) Enable DFSNetworkTopology as
 default
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archived-at: Wed, 21 Jun 2017 21:50:06 -0000


    [ https://issues.apache.org/jira/browse/HDFS-11998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16058316#comment-16058316 ] 

Arpit Agarwal commented on HDFS-11998:
--------------------------------------

+1 for the patch. Verified that the test failures are unrelated.

[~linyiqun], are you okay with the v2 patch?

> Enable DFSNetworkTopology as default
> ------------------------------------
>
>                 Key: HDFS-11998
>                 URL: https://issues.apache.org/jira/browse/HDFS-11998
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Chen Liang
>            Assignee: Chen Liang
>         Attachments: HDFS-11998.001.patch, HDFS-11998.002.patch
>
>
> HDFS-11530 has made it configurable to use {{DFSNetworkTopology}}, and still uses {{NetworkTopology}} as default. 
> Given the stress testing in HDFS-11923 which shows the correctness of DFSNetworkTopology, and the performance testing in HDFS-11535 which shows how DFSNetworkTopology can outperform NetworkTopology. I think we are at the point where I can and should enable DFSNetworkTopology as default.
> Any comments/thoughts are more than welcome!


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