[Go-essp-tech] Notification & Data Node Architecture

[Gavin M Bell]

Hello Gentle-people,

Today's talk will cover the data node version notification subsystem as
well as a discussion regarding the overall data node architecture that
supports this feature.

Goal:
To provide notification to data node users about version changes of
interest (files they have in their possession).

Notification Modes:
*email (currently)
(rss)
(sms)

May be expanded to provide notifications not only on file versions but
other information.  Ex: System monitoring and metrics alerts, etc...

Notification process (mark and sweep):
1 users download files
2 publisher publishes version change (mark)
3 notification agent sends out message (sweep)
goto 1

Data Node Architecture:
http://rainbow.llnl.gov/dist/Data_Node_Architecture_v8.tiff
Motivated by need to provide a place to plug notification into...

ESG Data Node Manager
- Manages and coordinates the constituent parts of the software stack
- Pluggable, architecture made to support any number of participating
modules.
- 'Always On' service for synchronous and asynchronous rpc calls.


-- 
Gavin M. Bell
Lawrence Livermore National Labs
--

 "Never mistake a clear view for a short distance."
       	       -Paul Saffo

(GPG Key - http://rainbow.llnl.gov/dist/keys/gavin.asc)

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