[rabbitmq-discuss] Millions of possible values in a message routing key

[Jim Irrer]

That should work just fine.

Thanks,

- Jim

Jim Irrer     irrer at umich.edu       (734) 647-4409
University of Michigan Hospital Radiation Oncology
519 W. William St.             Ann Arbor, MI 48103


On Fri, Nov 18, 2011 at 2:16 PM, Julio Polo <julio at hawaii.edu> wrote:

> I'm wondering if it's feasible to set up a topic exchange and have the
> message routing key's first word be the person's identifier:
>
> <personNumericID>.<action>.<attribute>
>
> This way, applications may subscribe only to messages for the few
> people they are interested in.
>
> Are there any performance issues if a word in a message routing key
> can have a very large range of values?  Let's say 70,000 possible
> values. What if it grows to a million and beyond? Does it matter?
>
> I doubt we'd implement the above, but it's nice to know if it ever
> comes up.   We're most likely to implement a message routing key like
> <deptCode>.<action>.<attribute> where <deptCode> can have about 1000
> possible values.  I assume that should be no problem.
>
> Julio Polo
> University of Hawaii
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