Replication ?

[Nathan Nobbe]

Hi all,

I know I'll get blasted for not googling enough, but I have a quick
question.

I was under the impression memcached servers replicated data, such that if i
have 2 servers and one machine goes down the data would all still be
available on the other machine.  this with the understanding that some data
may not yet have been replicated as replication isn't instantaneous.

Can you clarify for me?

thx,

-nathan

Re: Replication ?

[Nathan Nobbe]

On Thu, Mar 3, 2011 at 2:44 PM, Roberto Spadim robe...@spadim.com.brwrote:

 more here:
 http://repcached.lab.klab.org/


This was the first thing that came up on google, just wanted to verify
memcached doesn't replicate out-of-the-box.

thx,

-nathan

Re: Replication ?

[Nathan Nobbe]

On Thu, Mar 3, 2011 at 3:02 PM, Roberto Spadim robe...@spadim.com.brwrote:

 humm i will tell my experience
 there´s two ideas
 one replication (like raid1)
 other load balance (like raid0 stripe)

 client side can load balance like 'raid0' (i don´t know if libmemcache
 have this, in php i use it, and works well)
 repcache works like 'raid1' (for cluster and HA i´m using it without
 problems, and it´s very good!)
 memcachedb have non volatile tools (use harddisk/ssd 'cache' with a berkley
 db)
 there´s another memcache port but i don´t remember now, with more
 features (web administration and others tools)

 maybe in future we could put all in one package? i don´t know...


A friend has mentioned membase:

http://www.membase.org/

though I've hardly had a minute to investigate, it implements the memcache
protocol, but it sounds like it may use something other than libmemcache on
the backend.

-nathan