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https://issues.apache.org/jira/browse/HDFS-10685?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Clampffer updated HDFS-10685:
-----------------------------------
    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

Committed to HDFS-8707.  Thanks [~vectorijk] for the original patch and 
[~xiaowei.zhu] for the reviews!

> libhdfs++: return explicit error when non-secured client connects to secured 
> server
> -----------------------------------------------------------------------------------
>
>                 Key: HDFS-10685
>                 URL: https://issues.apache.org/jira/browse/HDFS-10685
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs-client
>            Reporter: Bob Hansen
>         Attachments: HDFS-10685.HDFS-8707.000.patch, 
> HDFS-10685.HDFS-8707.001.patch
>
>
> When a non-secured client tries to connect to a secured server, the first 
> indication is an error from RpcConnection::HandleRpcRespose complaining about 
> "RPC response with Unknown call id -33".
> We should insert code in HandleRpcResponse to detect if the unknown call id 
> == RpcEngine::kCallIdSasl and return an informative error that you have an 
> unsecured client connecting to a secured server.



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