[jira] [Assigned] (PHOENIX-6085) Remove duplicate calls to getSysMutexPhysicalTableNameBytes() during the upgrade path

["Richárd Antal (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PHOENIX-6085?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Richárd Antal reassigned PHOENIX-6085:
--------------------------------------

    Assignee:     (was: Richárd Antal)

> Remove duplicate calls to getSysMutexPhysicalTableNameBytes() during the upgrade path
> -------------------------------------------------------------------------------------
>
>                 Key: PHOENIX-6085
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-6085
>             Project: Phoenix
>          Issue Type: Improvement
>    Affects Versions: 5.0.0, 4.15.0
>            Reporter: Chinmay Kulkarni
>            Priority: Minor
>              Labels: phoenix-hardening, quality-improvement
>             Fix For: 5.2.1
>
>         Attachments: PHOENIX-6085.4.x.v1.patch, PHOENIX-6085.master.v1.patch
>
>
> We already make this call inside [CQSI.acquireUpgradeMutex()|https://github.com/apache/phoenix/blob/1922895dfe5960dc025709b04acfaf974d3959dc/phoenix-core/src/main/java/org/apache/phoenix/query/ConnectionQueryServicesImpl.java#L4220] and then call writeMutexCell() which calls this again [here|https://github.com/apache/phoenix/blob/1922895dfe5960dc025709b04acfaf974d3959dc/phoenix-core/src/main/java/org/apache/phoenix/query/ConnectionQueryServicesImpl.java#L4244]. 
> We should move this to inside writeMutexCell() itself and throw UpgradeInProgressException if required there to avoid unnecessary expensive HBase admin API calls.



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