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https://issues.apache.org/jira/browse/HADOOP-14957?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16213259#comment-16213259
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Haibo Chen commented on HADOOP-14957:
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Any client that's not directly calling the ClientDatanodeProtocol method in
question should be fine given the .proto data is unchanged as you point out.
Looks like it is just used in DFS Admin protocol, not sure how pervasive it is
used. [~xiaochen] [~andrew.wang].
I have attached a patch that I have tested internally to make sure it does not
cause build failures for downstream projects, in case we decide to change it.
> ReconfigurationTaskStatus is exposing guava Optional in its public api
> ----------------------------------------------------------------------
>
> Key: HADOOP-14957
> URL: https://issues.apache.org/jira/browse/HADOOP-14957
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: common
> Affects Versions: 3.0.0-beta1
> Reporter: Haibo Chen
> Assignee: Haibo Chen
> Attachments: HADOOP-14957.prelim.patch
>
>
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