[zeromq-dev] Fwd: Exact matching on subscription topics

Andrew Hume andrew at research.att.com
Thu Jan 19 12:29:42 CET 2012

okay, 10s of millions of what?
i understand the stock exchange example, but thats only thousands..

On Jan 19, 2012, at 2:26 AM, Staffan Gimåker wrote:

> On Thu, Jan 19, 2012 at 2:53 AM, Andrew Hume <andrew at research.att.com> wrote:
> on the other hand, i don't get this use case.
> can anyone share why we need this complexity of subscription stuff?
> someone mentioned having tens of thousands of "topics" -- what is this about?
> Tens of millions of topics is the case we have.
> We want to do exact matching for two reasons:
>  * The trie uses a metric shit ton of memory, exact matching would allow us to use less memory with comparable throughput.
>  * We need exact matching semantics to do other funky stuff to handle our load, e.g. sharding of subscription information.
> /S
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Andrew Hume  (best -> Telework) +1 623-551-2845
andrew at research.att.com  (Work) +1 973-236-2014
AT&T Labs - Research; member of USENIX and LOPSA

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