[ https://issues.apache.org/jira/browse/FALCON-1343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14745544#comment-14745544 ] 

Balu Vellanki commented on FALCON-1343:
---------------------------------------

[~peeyushb] /tmp always exists in HDFS, not so for /temp. For readonly, Falcon do not need to create any files. Falcon just has to verify that user can connect to namenode. So /tmp is better option.


> validation of read/write endpoints is not reliable
> --------------------------------------------------
>
>                 Key: FALCON-1343
>                 URL: https://issues.apache.org/jira/browse/FALCON-1343
>             Project: Falcon
>          Issue Type: Sub-task
>          Components: general
>            Reporter: Balu Vellanki
>            Assignee: Balu Vellanki
>         Attachments: FALCON-1343.patch
>
>
> A read/write endpoint is currently validated by creating a filesystem with the endpoint url. 
> {code}
>             HadoopClientFactory.get().createProxiedFileSystem(conf);
> {code}
> I confirmed with a HDFS team member that it is not sufficient validation.  Ideally check if the end user has access by doing atleast a list /tmp call after creating proxiedFileSystem. 



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