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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1150) Verify datanodes' identities to clients in secure clusters
Date Wed, 19 May 2010 00:34:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12868936#action_12868936
] 

Devaraj Das commented on HDFS-1150:
-----------------------------------

bq. Also, where is the equivalent fix for the TaskTracker? Is anything preventing a TaskTracker
from giving bad input to a task?

Actually, all the RPCs are mutually authenticated via Sasl-Digest authentication. The shuffle
communications are also mutually authenticated. So the Task<->TaskTracker communications
are secured. In the datanode case, the data transfer protocol does not use the regular Hadoop
RPC. Hence, we need to handle it differently..

> Verify datanodes' identities to clients in secure clusters
> ----------------------------------------------------------
>
>                 Key: HDFS-1150
>                 URL: https://issues.apache.org/jira/browse/HDFS-1150
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: data-node
>    Affects Versions: 0.22.0
>            Reporter: Jakob Homan
>            Assignee: Jakob Homan
>         Attachments: commons-daemon-1.0.2-src.tar.gz, HDFS-1150-BF1-Y20.patch, hdfs-1150-bugfix-1.1.patch,
hdfs-1150-bugfix-1.2.patch, hdfs-1150-bugfix-1.patch, HDFS-1150-y20.build-script.patch, HDFS-1150-Y20S-ready-5.patch,
HDFS-1150-Y20S-ready-6.patch, HDFS-1150-Y20S-ready-7.patch, HDFS-1150-Y20S-ready-8.patch,
HDFS-1150-Y20S-Rough-2.patch, HDFS-1150-Y20S-Rough-3.patch, HDFS-1150-Y20S-Rough-4.patch,
HDFS-1150-Y20S-Rough.txt
>
>
> Currently we use block access tokens to allow datanodes to verify clients' identities,
however we don't have a way for clients to verify the authenticity of the datanodes themselves.

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