[horde] Session Timeout in Horde 3.2

[mohd haifizan mohd raya]

I've problem with horde application as the app frequently time out. I
already set in conf.php;

$conf['session']['timeout'] = 0;

I believe this will set horde application no timeout until user closed
the browser....

I'm using xcache as caching system with lifetime set to 0. Is there
anything i can do... where else I must make changes... whether in
php.ini... xcache conf....

Horde session will timeout less than one hour... hope you guys can help