[jira] [Work logged] (HIVE-26794) Explore changing TxnHandler#connPoolMutex to NoPoolConnectionPool

Fri, 02 Dec 2022 23:45:11 -0800 


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https://issues.apache.org/jira/browse/HIVE-26794?focusedWorklogId=830823&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-830823
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ASF GitHub Bot logged work on HIVE-26794:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 03/Dec/22 07:44
            Start Date: 03/Dec/22 07:44
    Worklog Time Spent: 10m 
      Work Description: sonarcloud[bot] commented on PR #3817:
URL: https://github.com/apache/hive/pull/3817#issuecomment-1336106336

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Issue Time Tracking
-------------------

    Worklog Id:     (was: 830823)
    Time Spent: 1.5h  (was: 1h 20m)

> Explore changing TxnHandler#connPoolMutex to NoPoolConnectionPool
> -----------------------------------------------------------------
>
>                 Key: HIVE-26794
>                 URL: https://issues.apache.org/jira/browse/HIVE-26794
>             Project: Hive
>          Issue Type: Improvement
>          Components: Standalone Metastore
>            Reporter: Zhihua Deng
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1.5h
>  Remaining Estimate: 0h
>
> Instead of creating a fixed size connection pool for TxnHandler#MutexAPI, the 
> pool can be assigned to NoPoolConnectionPool due to: 
>  * TxnHandler#MutexAPI is primarily designed to provide coarse-grained mutex 
> support to maintenance tasks running inside the Metastore, these tasks are 
> not user faced;
>  * A fixed size connection pool as same as the pool used in ObjectStore is a 
> waste for other non leaders in the warehouse; 
> The NoPoolConnectionPool provides connection on demand, and 
> TxnHandler#MutexAPI only uses getConnection method to fetch a connection from 
> the pool, so it's doable to change the pool to NoPoolConnectionPool, this 
> would make the HMS more scaleable.



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