[horde] slow/no response when memcache is down

[Chuck Hagenbuch]

Quoting Matus UHLAR - fantomas <uhlar at fantomas.sk>:

>> Quoting Matus UHLAR - fantomas <uhlar at fantomas.sk>:
>>> I have configured horde to store sessions in mysql but use memcached.
>>> I thought memcache will be used as cache and if the server is not  
>>> reachable,
>>> mysql will always be used.
>>> However, when I turn memcached off, connection start hanging.
>
> On 05.04.11 10:35, Chuck Hagenbuch wrote:
>> What do you mean by hanging? Do you know what's being blocked on?
>
> oh, sorry for using such weak explanation.
>
> Connecting to webmail and loading the login page was slow. I actually didn't
> wait how long will it take - waiting 30 seconds is unacceptable for me.
>
> When I started up memcached, there was no problem.
>
> I checked up if it's not the firewall with DROP setting, it was not.
>
> Any idea what can that be?

Naive explanation is that Horde is hanging while trying to connect to  
the memcache server instead of realizing immediately that it's down.  
Which memcache interface/client are you using?

-chuck