nsheth wrote:
About once a day, usually during peak traffic times, I hit some major
load issues. I'm running memached on the same boxes as my
webservers. Load usually spikes to 35-50, and I see the apache error
log flooded with messages like the following:
[Sun Sep 13 14:54:34 2009] [error] [client 10.0.0.2] PHP Warning:
memcache_pconnect() [<a href='function.memcache-pconnect'>function.
memcache-pconnect</a>]: Can't connect to 10.0.0.5:11211, Unknown error
(0) in /var/www/html/memcache.php on line 174, referer: xxxx
Any thoughts? Restart apache, and everything clears up.
It's PHP. I have seen something but in last couple weeks it has
"cleared" itself. It could be coincidental with using memcached 1.4.1,
code changes etc. I actually have some Ganglia snapshots of the behavior
you are describing here
http://2tu.us/pgr
Reason why load goes to 35-50 is that Apache starts consuming greater
and greater amounts of memory indicating a PHP memory leak. Granted it
could also have something to do with session garbage collection.
I'm running memcached 1.2.5 currently (which looks to be a bit out of
date at this point, so perhaps an update is in order).
I think that would be a wise choice.
Vladimir
