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https://issues.apache.org/jira/browse/HDFS-10208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15285882#comment-15285882
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Hudson commented on HDFS-10208:
-------------------------------
FAILURE: Integrated in Hadoop-trunk-Commit #9773 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/9773/])
HDFS-10208. Addendum for HDFS-9579: to handle the case when client (sjlee: rev
61f46be071e42f9eb49a54b1bd2e54feac59f808)
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/net/TestNetworkTopology.java
*
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/ClientContext.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/MiniDFSCluster.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDistributedFileSystem.java
* hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/net/NetworkTopology.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/net/NodeBase.java
> Addendum for HDFS-9579: to handle the case when client machine can't resolve
> network path
> -----------------------------------------------------------------------------------------
>
> Key: HDFS-10208
> URL: https://issues.apache.org/jira/browse/HDFS-10208
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Ming Ma
> Assignee: Ming Ma
> Fix For: 2.9.0, 3.0.0-alpha1
>
> Attachments: HDFS-10208-2.patch, HDFS-10208-3.patch,
> HDFS-10208-4.patch, HDFS-10208-5.patch, HDFS-10208.patch
>
>
> If DFSClient runs on a machine that can't resolve network path,
> {{DNSToSwitchMapping}} will return {{DEFAULT_RACK}}. In addition, if somehow
> {{dnsToSwitchMapping.resolve}} returns null, that will cause exception when
> it tries to create {{clientNode}}. In either case, there is no need to create
> {{clientNode}} and we should treat its network distance with any datanode as
> Integer.MAX_VALUE.
> {noformat}
> clientNode = new NodeBase(clientHostName,
> dnsToSwitchMapping.resolve(nodes).get(0));
> {noformat}
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