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https://issues.apache.org/jira/browse/HDDS-5954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17453160#comment-17453160
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Mukul Kumar Singh commented on HDDS-5954:
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cc [~shashikant] [~szetszwo]
> EC: Review the TODOs in GRPC Xceiver client and fix them.
> ---------------------------------------------------------
>
> Key: HDDS-5954
> URL: https://issues.apache.org/jira/browse/HDDS-5954
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Uma Maheswara Rao G
> Assignee: István Fajth
> Priority: Major
>
> Currently there are 4 TODO-s in the GRPC client.
> 1. L331 adds a note that we should cache the current leader, so that we can
> go to the leader next time.
> 2. L422 adds a note about sendCommandAsync, which states that it is not
> async. The code on the other hand seems to be returning a CompletableFuture
> instance wrapped inside an XceiverClientReply, though sometimes we wait on
> the future before really returning.
> 3. L452 notes that async requests are served out of order, and this should be
> revisited if we make the API async.
> 4. L483 is connected to #2, and it notes that we should reuse stream
> observers if we are going down the async route
> The latter three requires deeper investigation and understanding, to see how
> we can approach fixing it, and to figure out whether we really need to fix it.
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