Memory Ceiling

Brett Richter brett at
Wed Aug 9 18:54:53 UTC 2006

thanks for the quick reply... the line def says -m 1024 but it never  
goes higher than 700mb (we use cacti graphs).  And yes those werid  
debian guys! it uses a conf file..

Any other suggestions?
On Aug 9, 2006, at 2:48 PM, Steven Grimm wrote:

> Memcached doesn't have a config file per se (must be something the  
> Debian guys added) so the first thing to look at is what command  
> line parameters are getting passed to the actual memcached process.  
> The one you want to look at is "-m", which controls the cache size.  
> If you run "memcached -m 1024" then the cache should grow up to 1GB.
> As for using all three of your servers, that is most likely a  
> client configuration issue. The client is responsible for choosing  
> which server to use for a particular key; if the client is only  
> configured to know about one of the servers, it will never contact  
> the other two.
> -Steve
> Brett Richter wrote:
>> I'm sure this has been asked a million times but we seem to be  
>> running up against a memory ceiling on memcached.  We use it to  
>> cache dynamic content of our website.  No matter how high I set  
>> the memory limit in the conf file it never goes higher than 700mb  
>> (give or take).  We definitely need more than that as any hit that  
>> doesn't hit the cache is going to the database and its getting  
>> overwhelmed at times.
>> A bit about our setup. We have 3 servers running memcached, both  
>> set to 1024mb memory.  It seems that it's really only using 1  
>> server right now (looking into why its not using the pool of 3),  
>> so I really need to get one up to like 3gb till we can look at the  
>> code and see why its not using the memcache pool better (or at all).
>> Systems are Debian Stable 64 using one of their packaged memcached  
>> installs version 1.1.12-1 of memcache
>> Sorry if this seems cryptic of not enough detail I'm the sysadmin  
>> not the developer of the back end content manager.
>> Any help would be great!
>> Thanks!

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