[jira] [Updated] (HIVE-29402) Split HMSHandler

["Zhihua Deng (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-29402?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhihua Deng updated HIVE-29402:
-------------------------------
    Summary: Split HMSHandler  (was: Split the complex operation from HMSHandler)

> Split HMSHandler
> ----------------
>
>                 Key: HIVE-29402
>                 URL: https://issues.apache.org/jira/browse/HIVE-29402
>             Project: Hive
>          Issue Type: Wish
>            Reporter: Zhihua Deng
>            Priority: Major
>         Attachments: Split HMSHandler.pdf
>
>
> In older versions, the HMSHandler is a "God Object" that handled everything from Thrift requests and authorization to file system operations and raw database transactions.
> 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 respond to the client.
> By this way the HMSHandler has a simpler routine, which makes it easier to maintain and optimize in the future.



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