TAJO-1506: WorkerConnectionInfo::id field may be not unique, but its uniqueness is assumed throughout codes.

[ykrips]

No description provided.

[ykrips]

Test result can be found in this link.
https://issues.apache.org/jira/browse/TAJO-1506?focusedCommentId=14394182&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14394182

[blrunner]

Thanks for your contribution.

I tested this on four of linux servers. But I found that worker id had been duplicated as follows.

2015-04-05 07:13:05,916 INFO org.apache.tajo.worker.TajoWorker: Tajo Worker is initialized. connection :id:1, host:tajo004.xyz, PeerRpcPort:28091, PullServerPort:53218, ClientPort:28092, QueryMasterPort:28093, HttpInfoPort:28080

2015-04-05 07:13:05,054 INFO org.apache.tajo.worker.TajoWorker: Tajo Worker is initialized. connection :id:1, host:tajo005.xyz, PeerRpcPort:28091, PullServerPort:44162, ClientPort:28092, QueryMasterPort:28093, HttpInfoPort:28080

So, TajoMaster can't show right TajoWorker list on web pages. Could you check this again?

[ykrips]

@blrunner ,
Thanks for testing this task. I could not test for inter-node cases. I will check again and re-open this pull request after modification has finished.