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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10326) M/R jobs can not access S3 if Kerberos is enabled
Date Tue, 11 Feb 2014 01:38:20 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13897423#comment-13897423

Hadoop QA commented on HADOOP-10326:

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  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 2 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
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-common-project/hadoop-common.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/3554//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/3554//console

This message is automatically generated.

> M/R jobs can not access S3 if Kerberos is enabled
> -------------------------------------------------
>                 Key: HADOOP-10326
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10326
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 2.2.0
>         Environment: hadoop-1.0.0;MIT kerberos;java 1.6.0_26
> CDH4.3.0(hadoop 2.0.0-alpha);MIT kerberos;java 1.6.0_26
>            Reporter: Manuel DE FERRAN
>              Labels: s3
>         Attachments: 0001-HADOOP-10326.-s3-s3n-does-not-support-tokens.patch
> With Kerberos enabled, any job that is taking as input or output s3 files fails.
> It can be easily reproduced with wordcount shipped in hadoop-examples.jar and a public
S3 file:
> {code}
> /opt/hadoop/bin/hadoop --config /opt/hadoop/conf/ jar /opt/hadoop/hadoop-examples-1.0.0.jar
wordcount s3n://ubikodpublic/test out01
> {code}
> returns:
> {code}
> 12/08/10 12:40:19 INFO hdfs.DFSClient: Created HDFS_DELEGATION_TOKEN token 192 for hadoop
> 12/08/10 12:40:19 INFO security.TokenCache: Got dt for hdfs://aws04.machine.com:9000/mapred/staging/hadoop/.staging/job_201208101229_0004;uri=;t.service=
> 12/08/10 12:40:19 INFO mapred.JobClient: Cleaning up the staging area hdfs://aws04.machine.com:9000/mapred/staging/hadoop/.staging/job_201208101229_0004
> java.lang.IllegalArgumentException: java.net.UnknownHostException: ubikodpublic
>         at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:293)
>         at org.apache.hadoop.security.SecurityUtil.buildDTServiceName(SecurityUtil.java:317)
>         at org.apache.hadoop.fs.FileSystem.getCanonicalServiceName(FileSystem.java:189)
>         at org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodesInternal(TokenCache.java:92)
>         at org.apache.hadoop.mapreduce.security.TokenCache.obtainTokensForNamenodes(TokenCache.java:79)
>         at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus(FileInputFormat.java:197)
>         at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.getSplits(FileInputFormat.java:252)
> <SNIP>
> {code}

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