I am just learning Ruby and planning a to use it for a network 
monitoring system.  I would like to design a system that will scale well 
and handle large work loads ( tens of thousands of monitors per server 
). My question is about concurrency. I am looking at threads and have 
fiddled with them a bit.  Ruby makes threading pretty straight forward. 
Now I'm trying to figure how to best use them.  The design goal is to 
have a server host tens of thousands of monitors in the most efficient 
way.  Monitors will need to be executed at specific and varying 
intervals.  (i.e. 1000 monitors once a minute / 2000 monitors once every 
three minutes / 5000 monitors once every 5 minutes / 10,000 monitors 
once every 10 minutes, etc.)

This is a problem that I'm sure has already been solved.  I would 
appreciate any suggestions that the group can offer regarding a proven 
design to tackle this goal.

Thanks, Don

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