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Posted to issues@hive.apache.org by "Chinna Rao Lalam (JIRA)" <ji...@apache.org> on 2016/08/01 09:32:20 UTC
[jira] [Commented] (HIVE-12077) MSCK Repair table should fix
partitions in batches
[ https://issues.apache.org/jira/browse/HIVE-12077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15401761#comment-15401761 ]
Chinna Rao Lalam commented on HIVE-12077:
-----------------------------------------
Committed to master.
> MSCK Repair table should fix partitions in batches
> ---------------------------------------------------
>
> Key: HIVE-12077
> URL: https://issues.apache.org/jira/browse/HIVE-12077
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: Ryan P
> Assignee: Chinna Rao Lalam
> Attachments: HIVE-12077.1.patch, HIVE-12077.2.patch, HIVE-12077.3.patch, HIVE-12077.4.patch, HIVE-12077.5.patch
>
>
> If a user attempts to run MSCK REPAIR TABLE on a directory with a large number of untracked partitions HMS will OOME. I suspect this is because it attempts to do one large bulk load in an effort to save time. Ultimately this can lead to a collection so large in size that HMS eventually hits an Out of Memory Exception.
> Instead I suggest that Hive include a configurable batch size that HMS can use to break up the load.
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