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https://issues.apache.org/jira/browse/HDDS-6518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17530824#comment-17530824
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Uma Maheswara Rao G commented on HDDS-6518:
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Thanks for the reply [~ckj]
I saw there is a separate Jira filed for get/list blocks HDDS-6596 right. Thanks
> EC: Add rpc for EC recovery in replication service
> --------------------------------------------------
>
> Key: HDDS-6518
> URL: https://issues.apache.org/jira/browse/HDDS-6518
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Kaijie Chen
> Assignee: Kaijie Chen
> Priority: Major
> Labels: pull-request-available
>
> When replicating EC containers, we need more rpc than copy container.
> h3. CoordinatorDN -> HealthyDN
> This patch adds support for {{ContainerCommand}} in replication service.
> Server Side:
> # Added command handler to dispatch container command requests.
> Client Side:
> # Added {{readContainer()}} to get number of total blocks to list.
> # Added {{listBlock()}} to list blocks in a container.
> # Added {{readChunk()}} to read the data from healthy datanodes.
> h3. CoordinatorDN -> TargetDN
> The CoordinatorDN should push the chunks to the TargetDN after computing
> missing blocks.
> {{WriteChunkProto}} without {{data}} means the end of the container.
> Push is chosen for following reasons:
> # CoordinatorDN does not need to hold the missing blocks for long.
> # CoordinatorDN can controll the progress of the recovery.
> Server Side:
> # Added dummy command handler for push chunk and start recovery.
> Client Side:
> # Added {{writeChunk()}} to push chunks to target datanodes.
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