[ 
https://issues.apache.org/jira/browse/HIVE-14925?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15570317#comment-15570317
 ] 

Rajesh Balamohan commented on HIVE-14925:
-----------------------------------------

It would be helpful to have the repro for this. We have tried with 10K 
partitions and with 10 & 15 threads in MSCK which worked fine without issues.

> MSCK repair table hang while running with multi threading enabled
> -----------------------------------------------------------------
>
>                 Key: HIVE-14925
>                 URL: https://issues.apache.org/jira/browse/HIVE-14925
>             Project: Hive
>          Issue Type: Bug
>          Components: CLI
>    Affects Versions: 2.2.0
>            Reporter: Ratheesh Kamoor
>            Assignee: Ratheesh Kamoor
>            Priority: Critical
>             Fix For: 2.2.0
>
>         Attachments: HIVE-14925.patch
>
>
> MSCK REPAIR TABLE hanging while running with multi-threading enabled 
> (default). I think it is because of a major design flaw in how thread pool 
> implemented in HiveMetaSoreChecker class / checkPartitionDirs method. This 
> method has a thread pool which register Callable but callable makes a 
> recursive call to checkPartitionDirs method again. This code will hang when 
> number of directories is more than thread pool size. 



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to