memcached debate

Dustin Sallings dustin at
Thu Apr 19 22:45:40 UTC 2007

On Apr 19, 2007, at 13:38 , andrew at wrote:

> Would it be possible to then use this distributed memory cache as if
> it were internal memory and access each key many many times.  Say,
> like 500 key hits every second.  Or, would network latency make this
> impractical?

	How often do these things change?  If they don't change frequently,  
you may be better off keeping an LRU of those locally on each node  
and having a separate cache invalidation protocol.

	Although, adding a cache invalidation protocol to memcached itself  
could be interesting.  Perhaps connect on a different port and have  
keys streaming to you as they mutate.  Has anyone considered such a  

Dustin Sallings

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