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https://issues.apache.org/jira/browse/HIVE-20896?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Dai updated HIVE-20896:
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Status: Patch Available (was: Open)
> CachedStore fail to cache stats in multiple code paths
> ------------------------------------------------------
>
> Key: HIVE-20896
> URL: https://issues.apache.org/jira/browse/HIVE-20896
> Project: Hive
> Issue Type: Bug
> Components: Standalone Metastore
> Reporter: Daniel Dai
> Assignee: Daniel Dai
> Priority: Major
> Attachments: HIVE-20896.0.patch
>
>
> Bunch of issues discovered in CachedStore to keep up column statistics:
> 1. The criteria for partition/non-partition is wrong
> (table.isSetPartitionKeys() is always true)
> 2. In update(), partition column stats are removed when populate table basic
> stats
> 3. Dirty flags are true right after prewarm(), so the first update() does not
> do anything
> 4. Could invoke cacheLock without holding the lock, which results a freeze in
> update()
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