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https://issues.apache.org/jira/browse/TAJO-1424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14390129#comment-14390129
 ] 

Jihoon Son commented on TAJO-1424:
----------------------------------

Hey [~navis].
I run 'mvn clean install -Pparallel-test,hcatalog-0.12.0 -DLOG_LEVEL=WARN 
-Dmaven.fork.count=2', and saw the following messages.
{noformat}
Running org.apache.tajo.engine.query.TestJoinBroadcast
2015-04-01 15:37:39,450 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:37:42,968 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:37:46,480 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:37:49,992 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:37:53,512 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:37:57,030 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:00,543 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:04,057 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:07,576 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:11,094 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:14,614 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:18,132 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:21,646 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:25,158 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:28,677 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:32,196 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:35,707 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:39,226 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:42,734 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:46,243 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:49,757 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:53,268 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:38:56,791 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:00,306 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:03,828 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:07,347 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:10,859 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:14,374 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:17,895 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:21,407 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:24,926 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:28,445 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:31,960 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:35,481 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:38,988 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
Tests run: 48, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 124.784 sec - 
in org.apache.tajo.engine.query.TestJoinBroadcast
Running org.apache.tajo.engine.query.TestJoinOnPartitionedTables
2015-04-01 15:39:42,511 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:46,033 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:49,548 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:53,060 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:39:56,575 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:00,094 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:03,612 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 22.84 sec - in 
org.apache.tajo.engine.query.TestJoinOnPartitionedTables
Running org.apache.tajo.engine.query.TestJoinQuery
2015-04-01 15:40:07,122 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:10,641 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:14,161 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:17,680 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:21,193 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:24,706 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:28,225 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:31,743 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:35,259 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:38,774 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:42,289 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:45,807 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:49,322 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:52,837 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:56,356 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:40:59,876 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:41:03,394 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:41:06,911 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:41:10,426 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:41:13,948 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
2015-04-01 15:41:17,458 ERROR: org.apache.tajo.rpc.NettyClientBase 
(operationComplete(186)) - Max retry count has been exceeded. attempts=3
...
{noformat}
It seems that your patch induces another problem. So, I suggest to ignore the 
"Try to connect" messages as [~dongjoon] did, and wait for [~jhkim]'s patch.

> Investigate the problem of too many "Try to connect" messeges during Travic 
> CI build
> ------------------------------------------------------------------------------------
>
>                 Key: TAJO-1424
>                 URL: https://issues.apache.org/jira/browse/TAJO-1424
>             Project: Tajo
>          Issue Type: Task
>            Reporter: Jihoon Son
>            Assignee: Dongjoon Hyun
>         Attachments: TAJO-1424.patch
>
>
> See the title. 
> After TAJO-1391, Travis emits too many "Try to connect" messeges, and finally 
> reaches the 10000 line limit.



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