You are viewing a plain text version of this content. The canonical link for it is here.

Posted to hdfs-issues@hadoop.apache.org by "Suresh Srinivas (JIRA)" <ji...@apache.org> on 2013/03/31 17:35:17 UTC

[jira] [Commented] (HDFS-2856) Fix block protocol so that Datanodes don't require root or jsvc

    [ https://issues.apache.org/jira/browse/HDFS-2856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13618351#comment-13618351 ] 

Suresh Srinivas commented on HDFS-2856:
---------------------------------------

As this requires protocol changes between client and datanode, it is good to get this into 2.0.5 beta, to ensure wire compatibility.
                
> Fix block protocol so that Datanodes don't require root or jsvc
> ---------------------------------------------------------------
>
>                 Key: HDFS-2856
>                 URL: https://issues.apache.org/jira/browse/HDFS-2856
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode, security
>            Reporter: Owen O'Malley
>
> Since we send the block tokens unencrypted to the datanode, we currently start the datanode as root using jsvc and get a secure (< 1024) port.
> If we have the datanode generate a nonce and send it on the connection and the sends an hmac of the nonce back instead of the block token it won't reveal any secrets. Thus, we wouldn't require a secure port and would not require root or jsvc.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira