[jira] [Assigned] (TAJO-269) Change the de/serialization protocol of LogicalPlan of QueryUnitAttempt from Json to ProtocolBuffer

["Hyunsik Choi (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TAJO-269?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyunsik Choi reassigned TAJO-269:
---------------------------------

    Assignee: Hyunsik Choi  (was: Jihoon Son)

Thanks Jihoon!

> Change the de/serialization protocol of LogicalPlan of QueryUnitAttempt from Json to ProtocolBuffer
> ---------------------------------------------------------------------------------------------------
>
>                 Key: TAJO-269
>                 URL: https://issues.apache.org/jira/browse/TAJO-269
>             Project: Tajo
>          Issue Type: Task
>          Components: query master, worker
>            Reporter: Jihoon Son
>            Assignee: Hyunsik Choi
>             Fix For: 0.9.0
>
>
> In the current implementation, the logical plan is serialized into a JSON object and sent to each worker.
> However, the transmission of JSON object incurs the high overhead due to its large size.
> ProtocolBuffer is a good alternative because its overhead is quite small and already used in other modules of Tajo.



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