[
https://issues.apache.org/jira/browse/HDFS-2528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13143641#comment-13143641
]
Arpit Gupta commented on HDFS-2528:
-----------------------------------
Also make a getdelegationtoken call and send no auth header a 500 is thrown
with
{code}
{"RemoteException":{"exception":"NullPointerException","javaClassName":"java.lang.NullPointerException","message":null}}
2011-11-04 00:04:09,695 WARN
org.apache.hadoop.hdfs.web.resources.ExceptionHandler: INTERNAL_SERVER_ERROR
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.namenode.web.resources.NamenodeWebHdfsMethods.generateDelegationToken(NamenodeWebHdfsMethods.java:147)
at
org.apache.hadoop.hdfs.server.namenode.web.resources.NamenodeWebHdfsMethods.access$500(NamenodeWebHdfsMethods.java:98)
at
org.apache.hadoop.hdfs.server.namenode.web.resources.NamenodeWebHdfsMethods$3.run(NamenodeWebHdfsMethods.java:528)
at
org.apache.hadoop.hdfs.server.namenode.web.resources.NamenodeWebHdfsMethods$3.run(NamenodeWebHdfsMethods.java:474)
{code}
> webhdfs rest call to a secure dn fails when a token is sent
> -----------------------------------------------------------
>
> Key: HDFS-2528
> URL: https://issues.apache.org/jira/browse/HDFS-2528
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: 0.20.205.0
> Reporter: Arpit Gupta
> Assignee: Tsz Wo (Nicholas), SZE
> Attachments: h2528_20111101.patch, h2528_20111101_0.20s.patch,
> h2528_20111101b.patch, h2528_20111101b_0.20s.patch, h2528_20111102.patch,
> h2528_20111102_0.20s.patch
>
>
> curl -L -u : --negotiate -i
> "http://NN:50070/webhdfs/v1/tmp/webhdfs_data/file_small_data.txt?op=OPEN";
> the following exception is thrown by the datanode when the redirect happens.
> {"RemoteException":{"exception":"IOException","javaClassName":"java.io.IOException","message":"Call
> to failed on local exception: java.io.IOException:
> javax.security.sasl.SaslException: GSS initiate failed [Caused by
> GSSException: No valid credentials provided (Mechanism level: Failed to find
> any Kerberos tgt)]"}}
> Interestingly when using ./bin/hadoop with a webhdfs path we are able to cat
> or tail a file successfully.
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