Largest production memcached install?
chip at corelands.com
Thu May 3 23:00:51 UTC 2007
Cal Heldenbrand wrote:
> Just curious what are the OS load averages on your database servers?
> Have you expanded facebook to the point where losing most of the
> memcache servers would cause your entire application to grind to a halt?
> During my initial thoughts on integrating memcache into our product, I
> could see it eventually becoming a crutch and we wouldn't have enough
> database hardware to support the application anymore. I wonder if
> that's a good thing or a bad thing?
Its a bad thing, to be in a situation where your database cannot handle
several memcache failures, or even a reset of a significant number
But the solution is: don't scale the database hardware, partition your
data into smaller sets.
The presentations on LiveJournal's architecture cover this type of
(Look at how they do 'user db clusters')
More information about the memcached