Memcached works well, then hangs

[Chris Bolt]

> One more thing -- as the daemon stays open, it looks like it is
> keeping some connections open as well. The number in front of the
> verbose output increases when it has a problem (which I assume
> is the # of connections). Right now it is:
> 
> <7 connection closed.
> 
> When I came back and part of the site was hung, it was:
> 
> <164 connection closed.

Have you tried disabling persistent connections in your memcache client? 
I ran into that problem as well a while back, and disabling persistent 
connections fixed it. I think it may have been some sort of PHP bug, but 
I couldn't track it down.