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https://issues.apache.org/jira/browse/SCB-748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16548987#comment-16548987
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Yang Bo commented on SCB-748:
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Jackson now has some protobuf3 support.
https://github.com/HubSpot/jackson-datatype-protobuf/blob/jackson29-proto3/README.md#protobuf-3-support
> ServiceComb engine resource optimize
> ------------------------------------
>
> Key: SCB-748
> URL: https://issues.apache.org/jira/browse/SCB-748
> Project: Apache ServiceComb
> Issue Type: Task
> Components: Java-Chassis
> Reporter: wujimin
> Assignee: wujimin
> Priority: Major
>
> to support protobuf codec not coupled with business logic, we must create
> classloader for each microserviceId(app/microservice/version), and create
> classes in it dynamiclly.
> that makes logic very complex, because must support generic and recursive
> reference.
> and in edge, create too many classes, will cause jvm meta area overflow
> so we will change invocation mechanism from strong type to weak type:
> * protobuf codec based on IDL not model class, maybe will switch from
> protoStuff to jackson, (protoStuff not support IDL, jackson support idl but
> not support protobuf V3)
> * delete all mechanism related to dynamic class creation
> * invocation not unify to RPC argument, but unify to HttpServletRequestEx
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