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From "Yongzhi Chen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-11427) Location of temporary table for CREATE TABLE SELECT broken by HIVE-7079
Date Tue, 12 Apr 2016 17:44:25 GMT

     [ https://issues.apache.org/jira/browse/HIVE-11427?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yongzhi Chen updated HIVE-11427:
--------------------------------
    Status: Patch Available  (was: Open)

Need code review.

> Location of temporary table for CREATE TABLE  SELECT broken by HIVE-7079
> ------------------------------------------------------------------------
>
>                 Key: HIVE-11427
>                 URL: https://issues.apache.org/jira/browse/HIVE-11427
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Grisha Trubetskoy
>            Assignee: Yongzhi Chen
>         Attachments: HIVE-11427.1.patch
>
>
> If a user _does not_ have HDFS write permissions to the _default_ database, and attempts
to create a table in a _private_ database to which the user _does_ have permissions using
CREATE TABLE AS SELECT from a table in the default database, the following happens:
> {code}
> use default;
> create table grisha.blahblah as select * from some_table;
> FAILED: SemanticException 0:0 Error creating temporary folder on: hdfs://nn.example.com/user/hive/warehouse.
Error encountered near token 'TOK_TMP_FILE’
> {code}
> I've edited this issue because my initial explanation was completely bogus. A more likely
explanation is in https://github.com/apache/hive/commit/1614314ef7bd0c3b8527ee32a434ababf7711278
> {code}
>  -                fname = ctx.getExternalTmpPath(
>  +                fname = ctx.getExtTmpPathRelTo(  
>     // and then something incorrect happens in getExtTmpPathRelTo()
> {code}
> In any event - the bug is that the location chosen for the temporary storage is not in
the same place as the target table. It should be same as the target table (/user/hive/warehouse/grisha.db
in the above example) because this is where presumably the user running the query would have
write permissions to.



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