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https://issues.apache.org/jira/browse/HDFS-11998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16058596#comment-16058596
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Yiqun Lin commented on HDFS-11998:
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Patch LGTM, +1.

> 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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