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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9100) HDFS Balancer does not respect dfs.client.use.datanode.hostname
Date Fri, 02 Oct 2015 20:14:27 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14941677#comment-14941677
] 

Hudson commented on HDFS-9100:
------------------------------

FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #446 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/446/])
HDFS-9100. HDFS Balancer does not respect (yzhang: rev 1037ee580f87e6bf13155834c36f26794381678b)
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/balancer/Dispatcher.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt


> HDFS Balancer does not respect dfs.client.use.datanode.hostname
> ---------------------------------------------------------------
>
>                 Key: HDFS-9100
>                 URL: https://issues.apache.org/jira/browse/HDFS-9100
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: balancer & mover, HDFS
>            Reporter: Yongjun Zhang
>            Assignee: Casey Brotherton
>             Fix For: 2.8.0
>
>         Attachments: HDFS-9100.000.patch, HDFS-9100.001.patch, HDFS-9100.002.patch, HDFS-9100.003.patch
>
>
> In Balancer Dispatch.java:
> {code}
>    private void dispatch() {
>       LOG.info("Start moving " + this);
>       Socket sock = new Socket();
>       DataOutputStream out = null;
>       DataInputStream in = null;
>       try {
>         sock.connect(
>             NetUtils.createSocketAddr(target.getDatanodeInfo().getXferAddr()),
>             HdfsConstants.READ_TIMEOUT);
> {code}
> getXferAddr() is called without taking into consideration of dfs.client.use.datanode.hostname
setting, this would possibly fail balancer run issued from outside a cluster.
> Thanks [~caseyjbrotherton] for reporting the issue.



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