[jira] [Work logged] (HIVE-27201) Inconsistency between session Hive and thread-local Hive may cause HS2 deadlock

Fri, 31 Mar 2023 10:43:12 -0700 


     [ 
https://issues.apache.org/jira/browse/HIVE-27201?focusedWorklogId=854228&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-854228
 ]

ASF GitHub Bot logged work on HIVE-27201:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 31/Mar/23 17:41
            Start Date: 31/Mar/23 17:41
    Worklog Time Spent: 10m 
      Work Description: sonarcloud[bot] commented on PR #4180:
URL: https://github.com/apache/hive/pull/4180#issuecomment-1492354626

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

    Worklog Id:     (was: 854228)
    Time Spent: 40m  (was: 0.5h)

> Inconsistency between session Hive and thread-local Hive may cause HS2 
> deadlock
> -------------------------------------------------------------------------------
>
>                 Key: HIVE-27201
>                 URL: https://issues.apache.org/jira/browse/HIVE-27201
>             Project: Hive
>          Issue Type: Bug
>          Components: HiveServer2
>            Reporter: Zhihua Deng
>            Assignee: Zhihua Deng
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> The HiveServer2’s server handler can switch to process the operation from 
> other session, in such case, the Hive cached in ThreadLocal is not the same 
> as the Hive in SessionState, and can be referenced by another session. 
> If the two handlers swap their sessions to process the DatabaseMetaData 
> request, and the HiveMetastoreClientFactory obtains the Hive via Hive.get(), 
> then there is a chance that the deadlock can happen.



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