Bunch of questions about memcache

Anatoly Vorobey mellon at pobox.com
Tue Nov 30 07:46:59 PST 2004

On Tue, Nov 30, 2004 at 10:17:35AM -0500, Chris Hartjes wrote:
> 1) how many memcache servers can be up and running before the amount
> of time the client spends more time checking numerous memcache servers
> than it would if it got the results from a very large database
> containing 1.5 million+ records

Arbitrarily many, the client always checks just one memcache server for any
given key.

> 2) what happens when memcache is full and you ask it to add something
> in?  How does it decide what key/value pair to turf out to make room?

Currently it's roughly "that key/value pair of roughly the same size (as
what you're trying to add) that hasn't been requested by any client for the 
longest time".

"There's nothing simply good, nor ill alone" -- John Donne

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