Masatake Iwasaki commented on YARN-2467:

The TraceAdmin added to AdminService is for online tracing configuration update 
by {{hadoop trace}} commmand as supported by NameNode and DataNode. The 
{{hadoop trace}} command requires users to specify hostport string of the 
target IPC server in order to support usecases in which tracing is enabled on 
specific slave server only.

Though I added TraceAdminProtocol to AdminService in the same way as 
HAServiceProtocol do, NodeManager does not have ipc server for administration. 
I think it is ok to remove the TraceAdmin feature from ResourceManager as a 
starting point.

> Add SpanReceiverHost to ResourceManager
> ---------------------------------------
>                 Key: YARN-2467
>                 URL: https://issues.apache.org/jira/browse/YARN-2467
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: api, resourcemanager
>            Reporter: Masatake Iwasaki
>            Assignee: Masatake Iwasaki
>         Attachments: YARN-2467.001.patch, YARN-2467.002.patch

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