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https://issues.apache.org/jira/browse/HADOOP-9683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13710016#comment-13710016
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Hudson commented on HADOOP-9683:
--------------------------------
SUCCESS: Integrated in Hadoop-trunk-Commit #4092 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/4092/])
HADOOP-9683. [RPC v9] Wrap IpcConnectionContext in RPC headers (daryn) (daryn:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1503811)
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Client.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/RpcConstants.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestSaslRPC.java
> Wrap IpcConnectionContext in RPC headers
> ----------------------------------------
>
> Key: HADOOP-9683
> URL: https://issues.apache.org/jira/browse/HADOOP-9683
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: ipc
> Reporter: Luke Lu
> Assignee: Daryn Sharp
> Priority: Blocker
> Attachments: HADOOP-9683.branch-2.patch, HADOOP-9683.patch,
> HADOOP-9683.trunk.patch
>
>
> After HADOOP-9421, all RPC exchanges (including SASL) are wrapped in RPC
> headers except IpcConnectionContext, which is still raw protobuf, which makes
> request pipelining (a desirable feature for things like HDFS-2856) impossible
> to achieve in a backward compatible way. Let's finish the job and wrap
> IpcConnectionContext with the RPC request header with the call id of
> SET_IPC_CONNECTION_CONTEXT. Or simply make it an optional field in the RPC
> request header that gets set for the first RPC call of a given stream.
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