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From "Xiaowei Zhu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10685) libhdfs++: return explicit error when non-secured client connects to secured server
Date Tue, 10 Jan 2017 20:32:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15816089#comment-15816089
] 

Xiaowei Zhu commented on HDFS-10685:
------------------------------------

+1

> 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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