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https://issues.apache.org/jira/browse/HIVE-13308?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15281186#comment-15281186
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wangwenli commented on HIVE-13308:
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[~lirui] generate secret has no cocurrent issue,nothing is shared,  and 
register RemoteDirver seems also thread safe, not !00% sure, maybe [~vanzin] 
can give some input?   thank you all very much.

> HiveOnSpark sumbit query very slow when hundred of beeline exectue at same 
> time
> -------------------------------------------------------------------------------
>
>                 Key: HIVE-13308
>                 URL: https://issues.apache.org/jira/browse/HIVE-13308
>             Project: Hive
>          Issue Type: Bug
>          Components: Spark
>    Affects Versions: 1.2.1
>            Reporter: wangwenli
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> backgroud: hive on spark ,  yarn cluster mode
> details:
> when using hundred of beeline submit query at the same time, we found that   
> yarn get application very slow, and hiveserver is blocked at 
> SparkClientFactory.createClient method
> after analysis, we think the synchronize on SparkClientFactory.createClient , 
> can be removed



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