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https://issues.apache.org/jira/browse/HIVE-21637?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Daniel Dai updated HIVE-21637:
------------------------------
    Attachment: HIVE-21637.44.patch

> Synchronized metastore cache
> ----------------------------
>
>                 Key: HIVE-21637
>                 URL: https://issues.apache.org/jira/browse/HIVE-21637
>             Project: Hive
>          Issue Type: New Feature
>            Reporter: Daniel Dai
>            Assignee: Daniel Dai
>            Priority: Major
>         Attachments: HIVE-21637-1.patch, HIVE-21637.10.patch, 
> HIVE-21637.11.patch, HIVE-21637.12.patch, HIVE-21637.13.patch, 
> HIVE-21637.14.patch, HIVE-21637.15.patch, HIVE-21637.16.patch, 
> HIVE-21637.17.patch, HIVE-21637.18.patch, HIVE-21637.19.patch, 
> HIVE-21637.19.patch, HIVE-21637.2.patch, HIVE-21637.20.patch, 
> HIVE-21637.21.patch, HIVE-21637.22.patch, HIVE-21637.23.patch, 
> HIVE-21637.24.patch, HIVE-21637.25.patch, HIVE-21637.26.patch, 
> HIVE-21637.27.patch, HIVE-21637.28.patch, HIVE-21637.29.patch, 
> HIVE-21637.3.patch, HIVE-21637.30.patch, HIVE-21637.31.patch, 
> HIVE-21637.32.patch, HIVE-21637.33.patch, HIVE-21637.34.patch, 
> HIVE-21637.35.patch, HIVE-21637.36.patch, HIVE-21637.37.patch, 
> HIVE-21637.38.patch, HIVE-21637.39.patch, HIVE-21637.4.patch, 
> HIVE-21637.40.patch, HIVE-21637.41.patch, HIVE-21637.42.patch, 
> HIVE-21637.43.patch, HIVE-21637.44.patch, HIVE-21637.5.patch, 
> HIVE-21637.6.patch, HIVE-21637.7.patch, HIVE-21637.8.patch, HIVE-21637.9.patch
>
>
> Currently, HMS has a cache implemented by CachedStore. The cache is 
> asynchronized and in HMS HA setting, we can only get eventual consistency. In 
> this Jira, we try to make it synchronized.



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