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https://issues.apache.org/jira/browse/HIVE-11566?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei Zheng updated HIVE-11566:
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Description:
Currently it's allocating one write buffer for a number of hash partitions up
front, which causes GC pause.
It's better to do the write buffer allocation on demand.
was:
Currently it's allocating a write buffer for a fixed number of hash partitions
up front, which causes GC pause.
It's better to do the write buffer allocation on demand.
> Hybrid grace hash join should only allocate write buffer for a hash partition
> when first write happens
> ------------------------------------------------------------------------------------------------------
>
> Key: HIVE-11566
> URL: https://issues.apache.org/jira/browse/HIVE-11566
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: Wei Zheng
> Assignee: Wei Zheng
>
> Currently it's allocating one write buffer for a number of hash partitions up
> front, which causes GC pause.
> It's better to do the write buffer allocation on demand.
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