[ https://issues.apache.org/jira/browse/HIVE-12365?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14995385#comment-14995385 ] 

Chaoyu Tang commented on HIVE-12365:
------------------------------------

I was not able to reproduce TestJdbcWithMiniHS2.testAddJarDataNucleusUnCaching failure in my local machine. Other three are existing failures. Reattach the patch to see if it could be reproduced.

> Added resource path is sent to cluster as an empty string when externally removed
> ---------------------------------------------------------------------------------
>
>                 Key: HIVE-12365
>                 URL: https://issues.apache.org/jira/browse/HIVE-12365
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>    Affects Versions: 1.2.1
>            Reporter: Chaoyu Tang
>            Assignee: Chaoyu Tang
>         Attachments: HIVE-12365.patch
>
>
> Sometimes the resources (e.g. jar) added via command like "add jars <filepath>" are removed externally from their filepath for some reasons. Their paths are sent to cluster as empty strings which causes the failures to the query that even do not need these jars in execution. The error look like as following:
> {code}
> 15/11/06 21:56:44 INFO mapreduce.JobSubmitter: Cleaning up the staging area file:/tmp/hadoop-ctang/mapred/staging/ctang734817191/.staging/job_local734817191_0003
> java.lang.IllegalArgumentException: Can not create a Path from an empty string
> 	at org.apache.hadoop.fs.Path.checkPathArg(Path.java:127)
> 	at org.apache.hadoop.fs.Path.<init>(Path.java:135)
> 	at org.apache.hadoop.mapreduce.JobSubmitter.copyAndConfigureFiles(JobSubmitter.java:215)
> 	at org.apache.hadoop.mapreduce.JobSubmitter.copyAndConfigureFiles(JobSubmitter.java:390)
> 	at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:483)
> 	at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1296)
> 	at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1293)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:415)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
> 	at org.apache.hadoop.mapreduce.Job.submit(Job.java:1293)
> {code}



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