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https://issues.apache.org/jira/browse/TAJO-1584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14530328#comment-14530328
 ] 

Hudson commented on TAJO-1584:
------------------------------

FAILURE: Integrated in Tajo-master-CODEGEN-build #333 (See 
[https://builds.apache.org/job/Tajo-master-CODEGEN-build/333/])
TAJO-1584: Remove QueryMaster client sharing in TajoMaster and TajoWorker. 
(jhkim: rev 04167bdc3bb04b53c5a245a9c18b6426ade82a26)
* tajo-core/src/main/java/org/apache/tajo/worker/TajoWorker.java
* tajo-common/src/main/java/org/apache/tajo/conf/TajoConf.java
* tajo-core/src/main/proto/QueryMasterProtocol.proto
* tajo-core/src/main/java/org/apache/tajo/worker/Task.java
* 
tajo-core/src/main/java/org/apache/tajo/querymaster/QueryMasterManagerService.java
* 
tajo-rpc/tajo-rpc-protobuf/src/main/java/org/apache/tajo/rpc/RpcClientManager.java
* tajo-core/src/main/java/org/apache/tajo/worker/TaskRunner.java
* 
tajo-rpc/tajo-rpc-protobuf/src/main/java/org/apache/tajo/rpc/NettyClientBase.java
* tajo-core/src/main/java/org/apache/tajo/worker/TajoWorkerManagerService.java
* tajo-core/src/main/java/org/apache/tajo/master/QueryInProgress.java
* tajo-core/src/main/java/org/apache/tajo/worker/ExecutionBlockContext.java
* CHANGES


> Remove QueryMaster client sharing in TajoMaster and TajoWorker
> --------------------------------------------------------------
>
>                 Key: TAJO-1584
>                 URL: https://issues.apache.org/jira/browse/TAJO-1584
>             Project: Tajo
>          Issue Type: Improvement
>          Components: multi tenancy, query master, rpc, tajo master, worker
>            Reporter: Jinho Kim
>            Assignee: Jinho Kim
>             Fix For: 0.11.0
>
>         Attachments: TAJO-1584.patch, TAJO-1584_2.patch, TAJO-1584_3.patch
>
>
> QueryMaster client should remove after use. It can possible that connection 
> refused in very large cluster because too many open connections



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