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https://issues.apache.org/jira/browse/HDDS-12750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17940794#comment-17940794
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Tsz-wo Sze commented on HDDS-12750:
-----------------------------------

Updated the description.

bq. ... We should also rename ScmServerDatanodeHeartbeatProtocol.proto to 
StorageContainerDatanodeProtocol.proto, i.e. make it consistent with its 
java_outer_classname.

BTW, we have not done the rename due to 
https://protobuf.dev/best-practices/1-1-1/

> Move StorageTypeProto from ScmServerDatanodeHeartbeatProtocol.proto to 
> hdds.proto
> ---------------------------------------------------------------------------------
>
>                 Key: HDDS-12750
>                 URL: https://issues.apache.org/jira/browse/HDDS-12750
>             Project: Apache Ozone
>          Issue Type: Improvement
>          Components: common
>            Reporter: Tsz-wo Sze
>            Assignee: Tsz-wo Sze
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 2.0.0
>
>
> TLDR: The change is wire compatible but requires updating protolock.
> In the PR of HDDS-11351, [~XiChen] pointed out that both hdds.proto and 
> ScmServerDatanodeHeartbeatProtocol.proto have the same proto package 
> "hadoop.hdds". So, we could safely move StorageTypeProto from 
> ScmServerDatanodeHeartbeatProtocol.proto to hdds.proto. The only difference 
> is the java_outer_classname. Fortunately, 
> ScmServerDatanodeHeartbeatProtocol.proto is a non-user facing internal 
> protocol and the change is wire compatible. (It is Java API incompatible but 
> it is fine since the protocol is not a public API.) So there are no 
> compatibility issues for ScmServerDatanodeHeartbeatProtocol.proto.
> For OzoneManagerProtocolProtos, it is visible from the StorageType class.  So 
> it is arguably a public API.  This is Java API incompatible in this sense.
> -A problem is that we need to update the protolock file. We should also 
> rename ScmServerDatanodeHeartbeatProtocol.proto to 
> StorageContainerDatanodeProtocol.proto, i.e. make it consistent with its 
> java_outer_classname.-



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