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https://issues.apache.org/jira/browse/TAJO-269?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13800147#comment-13800147
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Jihoon Son commented on TAJO-269:
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Right.
This work includes de/serialization of all kinds of LogicalNode as well as
EvalNode, Target, and so on.
It will take quite long time.
> 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: master, worker
> Reporter: Jihoon Son
> Assignee: Jihoon Son
> Fix For: 0.3-incubating
>
>
> 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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