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Questions tagged [memcached]

Memcached is an in-memory key-value store for small chunks of arbitrary data (strings, objects). It is commonly used as a cache to speed access to frequently used data.

Memcached is an in-memory key-value store for small chunks of arbitrary data (strings, objects). It is commonly used as a cache to speed access to frequently used data.

390 questions
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PHP APC MAJOR Fragmentation Issues?

So I have been using memcached to cache lots of data that was the result of queries to the database. Everything left at default, and on average I stored < 40MB in memcache. I used memcache.php to monitor that. Then I decided to switch over to APC…
Aco
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Amazon EC2 ELB directing load to other instances and session stores

If we scale up (add an instance to ELB), could we redirect some existing requests to the new instance. So that, The users that we force to a new server will be asked to login again If we scale down (remove an instance from ELB), then all users from…
Aivan Monceller
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Memcache - Issues in a distributed environment with many nodes

I've had a quick look through the other similarly titled questions and none are particularly similar to the issues I'm currently having. Basically, we've had a multi node memcached ring running for over two years, and for the most part its been…
kwiksand
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memcached php module not compiling on EC2

I'm trying to do this on EC2, micro instance using amazon linux I installed and started the memcached service without problems. But when trying to make the php part using pecl it told me pecl wasnt installed. So I installed pear, then pecl, when…
Cristian
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MAMP extension won't load

I recently installed MAMP Pro 1.9.5. I followed several tutorials online explaining how to enable memcached. I was able to compile correctly with no errors. I added memcache.so to my php.ini as extension=memcache.so. For some reason it does not add…
ehftwelve
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How to restart memcache? Via SSH

Hey i want to restart memcache so i can downgrade my Memory allocated for Memcache from 350MB to 64MB. I am new with SSH can anyone point me on how to restart Memcache or a way to re-allocate the memory for Memcached? Running on Linux CentOS,…
MemBoy
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Change password in memcached

How do I change/reset the password in a Membase (formerly known as NorthScale) memcached instance?
Mauricio Scheffer
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php_memcache.dll vc6 X64?

I am running wamp server with php 5.3.0. My efforts running memcached were a fail :( After googeling I found out that the problem is that I need the correct php_memcache.dll which is a vc6 compiled for windows 7 X64. Does anyone know where can I…
Gilad
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How to deploy web application for 2 million users?

I've been tasked with figuring out how to do a large scale deployment for a high availability, high traffic, dynamic, flash based web application. There is a good possibility that this application can grow to 2 million users or possibly a lot more.…
lysdexic
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What causes memcache to delete keys?

Our memcache install recently started removing keys, and we're not sure why. Large groups of keys vanish at the same time. Memcache reports that evictions are low to non-existent, and our app has no way to clear memcache (it can only delete…
Arkaaito
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Debian tuning for increasing read/write buffer

Is there a way to modify Debian settings so the memory could be used more for disk read/write caching ? I am already using RAID 0 but thats not enough for multiple users, and the disk is almost struggled. Torrents use the disk very much and rTorrent…
Claudiu
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memcached vs. tmpfs

Are there any advantages of using memcached locally over using a mounted tmpfs? Maybe, when the memory-caching system resides on the same host, it's better to use file hierarchy on tmpfs which gives the ability to use standard system API and…
kolypto
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dovecot + memcached, how to?

Does anyone know how to utilize memcached with dovecot (in order to reduce number of MySQL queries)? There is only very basic documentation regarding dovecot's Dictionary: memcached:param=value:param2=value2:... Supported parameters are: host:…
Miloš Đakonović
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How do you safely replicate Memcached data?

I have ~100GB of data running on several Memcached servers, but we're migrating all of our infrastructure to Amazon AWS so I'd like to find a way to replicate this information on these new servers. The problem I have right now is that to commit all…
Federico B.
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memcache servers

simple question here, I know these large sites like digg etc. have a wall of memcache servers that handle requests before hitting their actual master/slave db's. What would these servers look like, would they be just bare bone linux servers with…
user2659
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