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https://issues.apache.org/jira/browse/HADOOP-9944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13762118#comment-13762118
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Daryn Sharp commented on HADOOP-9944:
-------------------------------------
There are multiple negative callIds to signal out of band operations, such as
ping and sasl. Is the intention to change the protobuf def to a signed int?
> RpcRequestHeaderProto defines callId as uint32 while
> ipc.Client.CONNECTION_CONTEXT_CALL_ID is signed (-3)
> ---------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-9944
> URL: https://issues.apache.org/jira/browse/HADOOP-9944
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Arun C Murthy
> Priority: Blocker
>
> RpcRequestHeaderProto defines callId as uint32 while
> ipc.Client.CONNECTION_CONTEXT_CALL_ID is signed (-3).
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