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https://issues.apache.org/jira/browse/HDFS-2856?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Owen O'Malley updated HDFS-2856:
--------------------------------
Component/s: (was: contrib/raid)
(was: scripts)
security
data-node
> Fix block protocol so that Datanodes don't require root or jvsc
> ---------------------------------------------------------------
>
> Key: HDFS-2856
> URL: https://issues.apache.org/jira/browse/HDFS-2856
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: data-node, security
> Reporter: Owen O'Malley
>
> Since we send the block tokens unencrypted to the datanode, we currently
> start the datanode as root 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.
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