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Posted to hdfs-issues@hadoop.apache.org by "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2014/07/03 07:30:02 UTC
[jira] [Updated] (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:all-tabpanel ]
Karthik Kambatla updated HDFS-2856:
-----------------------------------
Target Version/s: 2.6.0 (was: 3.0.0, 2.5.0)
> 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
> Affects Versions: 3.0.0, 2.4.0
> Reporter: Owen O'Malley
> Assignee: Chris Nauroth
> Attachments: Datanode-Security-Design.pdf, Datanode-Security-Design.pdf, Datanode-Security-Design.pdf, HDFS-2856-Test-Plan-1.pdf, HDFS-2856.1.patch, HDFS-2856.2.patch, HDFS-2856.3.patch, HDFS-2856.4.patch, HDFS-2856.5.patch, HDFS-2856.6.patch, HDFS-2856.prototype.patch
>
>
> 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.
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