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Posted to dev@hive.apache.org by "Thejas M Nair (JIRA)" <ji...@apache.org> on 2013/09/03 02:08:51 UTC
[jira] [Commented] (HIVE-4584) CombineHiveInputFormat queries hang
when table is empty and aggregation function is used
[ https://issues.apache.org/jira/browse/HIVE-4584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13756279#comment-13756279 ]
Thejas M Nair commented on HIVE-4584:
-------------------------------------
[~appodictic], where you able to check if this happens with trunk ?
> CombineHiveInputFormat queries hang when table is empty and aggregation function is used
> ----------------------------------------------------------------------------------------
>
> Key: HIVE-4584
> URL: https://issues.apache.org/jira/browse/HIVE-4584
> Project: Hive
> Issue Type: Bug
> Reporter: Edward Capriolo
> Priority: Blocker
>
> Running hadoop 0.20.2. Hive 0.10. The new default is combined input format. When you aggregate and empty table, or a table not empty with an empty partition the query produces 0 maps and 1 reduce and hangs forever.
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