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phpmemcached

PHP memcached addserver don't return False when server is down

I have a memcached server running on 127.0.0.1:11211, but not 127.0.0.22:11212. I would like to test the connection to it thanks to this code;

$memcached = new Memcached;
if( !$memcached->addServer('127.0.0.22', 11212) )
    die( 'memcached server error' );
else
    echo 'OK';

The actual output is 'OK' instead of the expected 'memcached server error'

How to determine whether the memcached server is connected?

Solution

  • The memcache client will not make a connection to a server unless you're reading/writing to it. addServer returning true just means that the server is added to the pool, but it doesn't imply that a connection can be made.