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https://issues.apache.org/jira/browse/HIVE-29402?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhihua Deng reassigned HIVE-29402:
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Assignee: Zhihua Deng
> Split HMSHandler
> ----------------
>
> Key: HIVE-29402
> URL: https://issues.apache.org/jira/browse/HIVE-29402
> Project: Hive
> Issue Type: Wish
> Reporter: Zhihua Deng
> Assignee: Zhihua Deng
> Priority: Major
> Attachments: Split HMSHandler.pdf
>
>
> The HMSHandler within the HiveMetastore(HMS) has evolved into a "GodClass",
> currently encompassing thousands of lines of code and managing a wide range
> of responsibilities, including core metadata persistence, complex security
> auditing, and event notification.
> To decouple these operations from HMSHandler, HIVE-27224 introduces the
> AbstractOperationHandler, where a handler can deal with a specific request,
> it handles the file system operations, transactions and notifying the
> listener reacting to this request only, the HMSHandler takes care of the
> rest, such as audit, exception and the responce to the client.
> By this way the HMSHandler has a simpler routine, which makes it easier to
> maintain and optimize in the future.
> More can refer to the attached design document.
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