[OpenSIPS-Users] Memcache issues

[Brett Nemeroff]

Bogdan,
Increasing the -R parameter seems to have made the situation better, but I
am without question regularly running into weird memcache timeout and
system errors. I've tried several different hardware platforms. Point to
local and remote memcache servers. Different memcache libraries and server
versions. I've tried couchbase instead of memcache and I can't get rid of
the errors. I'm really not sure what could be causing them.

When I get them, the call attempting to process fails, which is
frustrating. I'd expect that the memcache result would return negative
which would trigger a direct db query (which is written in the script in
case the cache object is missing anyway). However it doesn't do this. It
just fails and continues processing a null return value. Is that behavior
expected or a bug?

Thanks!
-Brett


On Thu, Jan 24, 2013 at 6:27 AM, Bogdan-Andrei Iancu <bogdan at opensips.org>wrote:

> **
> Hi Brett,
>
> We talked about this on IRC - any luck with it ?
>
> Regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>
>
> On 01/21/2013 11:31 PM, Brett Nemeroff wrote:
>
> Hey All,
> Generally I have really good luck with memcache, but for some reason, I'm
> having some issues today.
>
>
>  Once I crank this one box up with load, I start to see these errors
> flood my logs:
>
>  cachedb_memcached:wrap_memcached_get: Failed to get: SYSTEM ERROR
> cachedb_memcached:wrap_memcached_get: Failed to get: A TIMEOUT OCCURRED
>
>  I've tired changing the tread count for memcache. Additional processes..
> Heck, I've even tried putting memcache on other servers and in other colos.
> The original memcache is on the same box and is pointed at localhost
> (127.0.1.2).
>
>
>  I'm hitting it reasonably hard, but it should keep up. About 10k ops a
> sec. I see it run great for like 2 minutes, then it hangs for like 4
> seconds, then picks back up for another 30 seconds or so.. goes that like
> on and off.
>
>  Any idea of what could be wrong?
>
>  Thanks,
> Brett
>
>
> _______________________________________________
> Users mailing listUsers at lists.opensips.orghttp://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opensips.org/pipermail/users/attachments/20130205/7d12e812/attachment.htm>