I'm using php memcached extension to save my app sessions on two servers. All works fine until I stop a memcached daemon on one of those servers ( to test the failover scenario). Memcached is set like this:
$mm = new Memcached(); $mm- >setOption(Memcached::OPT_DISTRIBUTION,Memcached::DISTRIBUTION_CONSISTENT); $mm->setOption(Memcached::OPT_LIBKETAMA_COMPATIBLE, true); $mm->setOption(Memcached::OPT_NUMBER_OF_REPLICAS, 2); $mm->setOption(Memcached::OPT_SERVER_FAILURE_LIMIT,1); There are two servers set in session.save_path. When one of the memcached daemons is terminated, I immediately get a warning in my app : Warning: Unknown: Failed to write session data (memcached). Please verify that the current setting of session.save_path is correct (server1:11211,server2:11211) in Unknown on line 0 and my session is gone. What am I missing? I use memcached ver 2.0.0b1. I also tested without setting the OPT_SERVER_FAILURE_LIMIT =1 , got the same result. Thanks, Sergey