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https://issues.apache.org/jira/browse/HIVE-13646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eugene Koifman reassigned HIVE-13646:
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Assignee: Eugene Koifman
> make hive.optimize.sort.dynamic.partition compatible with ACID tables
> ---------------------------------------------------------------------
>
> Key: HIVE-13646
> URL: https://issues.apache.org/jira/browse/HIVE-13646
> Project: Hive
> Issue Type: Bug
> Components: Transactions
> Affects Versions: 1.0.0
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
> Priority: Critical
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> HIVE-8875 disabled hive.optimize.sort.dynamic.partition for ACID queries.
> dynamic inserts are common in ACID and this leaves users with few options if
> they are seeing OutOfMemory errors due to too many writers.
> hive.optimize.sort.dynamic.partition sorts data by partition col/bucket
> col/sort col to ensure each reducer only needs 1 writer.
> Acid requires data in each bucket file to be sorted by ROW__ID and thus
> doesn't allow end user to determine sorting.
> So we should be able to support hive.optimize.sort.dynamic.partition with
> sort on partition col/bucket col/ROW__ID
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