proper memcached usage

Dustin Sallings dustin at
Tue Sep 11 21:23:23 UTC 2007

On Sep 11, 2007, at 14:13 , Marc Rossi wrote:

> I'm looking to replace a local machine data distribution system  
> using postgres with memcached.  There will be one process that  
> updates approximately 1500 items every second.  Each item will  
> point to a comma separated list of floats (10 max).  On the same  
> machine there will be several processes that consume this data in  
> different intervals.
> Is this a suitable use for memcached?  Most of the examples I have  
> read about involve multiple writers & readers, in this scenario I  
> will only have 1 writer and multiple readers (probably a max of 10).

	The biggest issue is that you can't rely on values being there when  
you go back to read them.

	Memcached only guarantees the values to *not* be there after  
whatever expiration date you set.  It doesn't make any guarantees  
about when the values *will* be there.

Dustin Sallings

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