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https://issues.apache.org/jira/browse/HDFS-6616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14066245#comment-14066245
]
Hadoop QA commented on HDFS-6616:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12656469/HDFS-6616.3.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. There were no new javadoc warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:red}-1 core tests{color}. The patch failed these unit tests in
hadoop-hdfs-project/hadoop-hdfs:
org.apache.hadoop.hdfs.server.namenode.ha.TestPipelinesFailover
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/7381//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7381//console
This message is automatically generated.
> bestNode shouldn't always return the first DataNode
> ---------------------------------------------------
>
> Key: HDFS-6616
> URL: https://issues.apache.org/jira/browse/HDFS-6616
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: webhdfs
> Reporter: zhaoyunjiong
> Assignee: zhaoyunjiong
> Priority: Minor
> Attachments: HDFS-6616.1.patch, HDFS-6616.2.patch, HDFS-6616.3.patch,
> HDFS-6616.patch
>
>
> When we are doing distcp between clusters, job failed:
> 014-06-30 20:56:28,430 INFO org.apache.hadoop.tools.DistCp: FAIL
> part-r-00101.avro : java.net.NoRouteToHostException: No route to host
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
> at
> sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1491)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1485)
> at
> sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1139)
> at
> java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:379)
> at org.apache.hadoop.hdfs.HftpFileSystem.open(HftpFileSystem.java:322)
> at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:427)
> at org.apache.hadoop.tools.DistCp$CopyFilesMapper.copy(DistCp.java:419)
> at org.apache.hadoop.tools.DistCp$CopyFilesMapper.map(DistCp.java:547)
> at org.apache.hadoop.tools.DistCp$CopyFilesMapper.map(DistCp.java:314)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:429)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:365)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1232)
> at org.apache.hadoop.mapred.Child.main(Child.java:249)
> The root reason is one of the DataNode can't access from outside, but inside
> cluster, it's health.
> In NamenodeWebHdfsMethods.java:bestNode, it always return the first DataNode,
> so even after the distcp retries, it still failed.
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