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https://issues.apache.org/jira/browse/HADOOP-2184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12542577
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rangadi edited comment on HADOOP-2184 at 11/14/07 12:19 PM:
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So the summery is that Map/Reduce kernel and user code should use different
identities and different RPC connections. The current implementation may not do
this correctly in some cases and we need to fix those (as part of 16).
The above sounds good to me. So for now, I will implement the RPC so that
ticket is transfered at the time of connection establishment. I think we add
call to change this ticket in the middle if required in future.
was (Author: rangadi):
So the summery is that Map/Reduce kernel and user code should use different
identities and different RPC connections. The current implementation may not do
this correctly in some cases and we need to fix those (as part of 16).
The above sounds good to me. So for now, I will implement the RPC so that
ticket is transfered at the time of connection establishment. I think we add
call to change this ticket in future if required.
> RPC Support for user permissions and authentication.
> ----------------------------------------------------
>
> Key: HADOOP-2184
> URL: https://issues.apache.org/jira/browse/HADOOP-2184
> Project: Hadoop
> Issue Type: New Feature
> Components: ipc
> Affects Versions: 0.15.0
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Raghu Angadi
> Fix For: 0.16.0
>
>
> Update 11/13/2007: What is proposed for 0.16.0 :
> The client can set a user ticket (as defined in HADOOP-1701) for each
> connection and that ticket is made available to RPC calls at the server. The
> client can replace the ticket at any time. The main advantage is that rest of
> the the client RPCs don't need to be aware of the user tickets.
> What RPC would ideally support in future :
> In the current version of RPC, there is no authentication or data protection.
> We propose to change the RPC framework, so that secure communication is
> possible.
> The new RPC should:
> - Compatible with current RPC
> - Allow a pluggable security implementations (see HADOOP-1701)
> - Support both secure and non-secure modes.
> Here is a rough idea:
> - Store security information (e.g. username, keys) in a ticket
> - Use the ticket to establish a RPC connection
> - Create secure sockets by the (subclass of) SocketFactory corresponding to
> the selected security implementations
> - Send the data and RPC parameters with the secure sockets
> When authentication is supported, the RPC callee should also initialize
> caller information during RPC setup and execute the RPC on the caller's
> behalf.
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