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https://issues.apache.org/jira/browse/HIVE-19430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16769472#comment-16769472
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Sankar Hariappan commented on HIVE-19430:
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+1 for 03.patch, pending tests.
> ObjectStore.cleanNotificationEvents OutOfMemory on large number of pending
> events
> ---------------------------------------------------------------------------------
>
> Key: HIVE-19430
> URL: https://issues.apache.org/jira/browse/HIVE-19430
> Project: Hive
> Issue Type: Bug
> Reporter: Thejas M Nair
> Assignee: Ashutosh Bapat
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Attachments: HIVE-19430.01.patch, HIVE-19430.02.patch,
> HIVE-19430.03.patch
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> If there are large number of events that haven't been cleaned up for some
> reason, then ObjectStore.cleanNotificationEvents() can run out of memory
> while it loads all the events to be deleted.
> It should fetch events in batches.
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