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https://issues.apache.org/jira/browse/HDFS-15474?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17932905#comment-17932905
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ASF GitHub Bot commented on HDFS-15474:
---------------------------------------

yoshiata opened a new pull request, #7475:
URL: https://github.com/apache/hadoop/pull/7475

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   ### Description of PR
   
   JIRA: https://issues.apache.org/jira/browse/HDFS-15474
   
   ### How was this patch tested?
   
   Confirm the HttpFS response message in my environment and add unit tests
   
   ### For code changes:
   
   - [X] Does the title or this PR starts with the corresponding JIRA issue id 
(e.g. 'HADOOP-17799. Your PR title ...')?
   - [ ] Object storage: have the integration tests been executed and the 
endpoint declared according to the connector-specific documentation?
   - [ ] If adding new dependencies to the code, are these dependencies 
licensed in a way that is compatible for inclusion under [ASF 
2.0](http://www.apache.org/legal/resolved.html#category-a)?
   - [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`, 
`NOTICE-binary` files?




> HttpFS: WebHdfsFileSystem cannot renew an expired delegation token from 
> HttpFS response
> ---------------------------------------------------------------------------------------
>
>                 Key: HDFS-15474
>                 URL: https://issues.apache.org/jira/browse/HDFS-15474
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Takanobu Asanuma
>            Assignee: Yoshiaki Takahashi
>            Priority: Major
>
> When clients use WebHdfsFileSystem for HttpFS, they cannot renew expired 
> delegation tokens with the following error.
> {noformat}
> org.apache.hadoop.ipc.RemoteException: 
> org.apache.hadoop.security.token.SecretManager$InvalidToken: token 
> (owner=..., renewer=..., realUser=..., issueDate=..., maxDate=..., 
> sequenceNumber=..., masterKeyId=...) is expired
>         at 
> org.apache.hadoop.hdfs.web.JsonUtilClient.toRemoteException(JsonUtilClient.java:89)
>         at 
> org.apache.hadoop.hdfs.web.WebHdfsFileSystem.validateResponse(WebHdfsFileSystem.java:509)
>         ...
> {noformat}
> When using WebHdfsFileSystem for NameNode, it succeeds. This is because the 
> response of HttpFS is different from its of NameNode. We should fix the 
> response of HttpFS.
> This issue is reported by Masayuki Yatagawa.



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