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https://issues.apache.org/jira/browse/HDFS-13418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16437129#comment-16437129
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Hudson commented on HDFS-13418:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #13992 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/13992/])
HDFS-13418. NetworkTopology should be configurable when enable (yqlin: rev
0725953efec89b35b7586b846abb01f7c5963b37)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestDatanodeManager.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/DFSConfigKeys.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/net/DFSNetworkTopology.java
> NetworkTopology should be configurable when enable DFSNetworkTopology
> ----------------------------------------------------------------------
>
> Key: HDFS-13418
> URL: https://issues.apache.org/jira/browse/HDFS-13418
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 3.0.1
> Reporter: Tao Jie
> Assignee: Tao Jie
> Priority: Major
> Fix For: 2.10.0, 3.2.0, 3.1.1
>
> Attachments: HDFS-13418-branch2.001.patch, HDFS-13418.001.patch,
> HDFS-13418.002.patch, HDFS-13418.003.patch, HDFS-13418.004.patch
>
>
> In HDFS-11530 we introduce DFSNetworkTopology and in HDFS-11998 we set
> DFSNetworkTopology as the default implementation.
> We still have {{net.topology.impl=org.apache.hadoop.net.NetworkTopology}} in
> core-site.default. Actually this property does not effect once
> {{dfs.use.dfs.network.topology}} is true.
> in {{DatanodeManager}}，networkTopology is initialized as
> {code}
> if (useDfsNetworkTopology) {
> networktopology = DFSNetworkTopology.getInstance(conf);
> } else {
> networktopology = NetworkTopology.getInstance(conf);
> }
> {code}
> I think we should still make the NetworkTopology configurable rather than
> hard code the implementation since we may need another NetworkTopology impl.
> I am not sure if there is other consideration. Any thought? [~vagarychen]
> [~linyiqun]
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