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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11998) Enable DFSNetworkTopology as default
Date Thu, 22 Jun 2017 05:29:01 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16058786#comment-16058786
] 

Hudson commented on HDFS-11998:
-------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #11905 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/11905/])
HDFS-11998. Enable DFSNetworkTopology as default. Contributed by Chen (arp: rev 9ae9467f920e95ca989d7d51775b39e1b9fee300)
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestReplicationPolicyWithNodeGroup.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/AvailableSpaceBlockPlacementPolicy.java


> 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
>             Fix For: 3.0.0-alpha4
>
>         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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