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https://issues.apache.org/jira/browse/IMPALA-10071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17189315#comment-17189315
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ASF subversion and git services commented on IMPALA-10071:
----------------------------------------------------------
Commit 502e1134be595ed5506424ee5f06dcf52f6fc646 in impala's branch
refs/heads/master from Zoltan Borok-Nagy
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=502e113 ]
IMPALA-10071: Impala shouldn't create filename starting with underscore during
ACID TRUNCATE
When Impala TRUNCATEs an ACID table, it creates a new base directory
with the hidden file "_empty" in it. Newer Hive versions ignore files
starting with underscore, therefore they ignore the whole base
directory.
To resolve this issue we can simply rename the empty file to "empty".
Testing:
* update acid-truncate.test accordingly
Change-Id: Ia0557b9944624bc123c540752bbe3877312a7ac9
Reviewed-on: http://gerrit.cloudera.org:8080/16396
Reviewed-by: Csaba Ringhofer <csringho...@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
> Impala shouldn't create filename starting with underscore during TRUNCATE
> -------------------------------------------------------------------------
>
> Key: IMPALA-10071
> URL: https://issues.apache.org/jira/browse/IMPALA-10071
> Project: IMPALA
> Issue Type: Bug
> Reporter: Zoltán Borók-Nagy
> Assignee: Zoltán Borók-Nagy
> Priority: Major
>
> When Impala TRUNCATEs an ACID table, it creates a new base directory with the
> hidden file "_empty" in it.
> Newer Hive versions ignore files starting with underscore, therefore they
> ignore the whole base directory.
> To resolve this issue we can simply rename the empty file to "empty".
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