md5 as memcached_key

Geoff Geoff lists at
Tue Jan 27 01:47:21 MSK 2009

Dave Cheney wrote:
> md5 is not guaranteed to be unique, that is to say, two seperate
> inputs can generate the same hash, so you would need to use extra
> logic in your application if you wanted to guard against this remote
> possibility. I'm guessing the problem you are trying to solve is the
> memcache key has a limitation that is shorter than the possible
> request_uri ?
> Cheers
> Dave

Thanks Dave,

 The problem is that memcached will not allow certain characters in the 
key name - so I thought it might be simpler to just store the md5 of the 
actual request_uri.



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