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From "Chen Liang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-11998) Enable DFSNetworkTopology as default
Date Tue, 20 Jun 2017 19:54:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11998?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chen Liang updated HDFS-11998:
------------------------------
    Attachment: HDFS-11998.001.patch

Post initial patch to set the config value to true by default.

> 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-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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