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https://issues.apache.org/jira/browse/HDFS-12950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16432954#comment-16432954
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Wei-Chiu Chuang commented on HDFS-12950:
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Thank you, Brahma.
I posted a patch to make WebImageViewer throw Runtime exception when it detects
the secure mode is enabled in configuration. Also updated doc and command line
help to indicate this use case is not supported.
> [oiv] ls will fail in secure cluster
> -------------------------------------
>
> Key: HDFS-12950
> URL: https://issues.apache.org/jira/browse/HDFS-12950
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.7.0
> Reporter: Brahma Reddy Battula
> Assignee: Wei-Chiu Chuang
> Priority: Major
> Attachments: HDFS-12950.001.patch
>
>
> if we execute ls, it will throw following.
> {noformat}
> hdfs dfs -ls webhdfs://127.0.0.1:5978/
> ls: Invalid value for webhdfs parameter "op"
> {noformat}
> When client is configured with security (i.e "hadoop.security.authentication=
> KERBEROS) ,
> then webhdfs will request getdelegation token which is not implemented and
> hence it will throw “ls: Invalid value for webhdfs parameter "op"”.
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