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https://issues.apache.org/jira/browse/HADOOP-2184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12544104
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Raghu Angadi commented on HADOOP-2184:
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> So you are sending constant bytes for each method call.
I am planning to send the ticket only once per connection, irrespective of how
we implement it.
> 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
>
> Attachments: HADOOP-2184-demo.patch
>
>
> 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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