Memcache::addServer

Point to the host where memcached is listening for connections.

Point to the port where memcached is listening for connections. This parameter is optional and its default value is 11211.

Controls the use of a persistent connection. Default to TRUE.

Number of buckets to create for this server which in turn control its probability of it being selected. The probability is relative to the total weight of all servers.

Value in seconds which will be used for connecting to the daemon. Think twice before changing the default value of 1 second - you can loose all the advantages of caching if your connection is too slow.

Controls how often a failed server will be retried, the default value is 15 seconds. Setting this parameter to -1 disables automatic retry. Neither this nor the persistent parameter has any effect when the extension is loaded dynamically via dl().

Each failed connection struct has its own timeout and before it has expired the struct will be skipped when selecting backends to serve a request. Once expired the connection will be successfully reconnected or marked as failed for another retry_interval seconds. The typical effect is that each webserver child will retry the connection about every retry_interval seconds when serving a page.

Controls if the server should be flagged as online. Setting this parameter to FALSE and retry_interval to -1 allows a failed server to be kept in the pool so as not to affect the key distribution algoritm. Requests for this server will then failover or fail immediatly depending on the memcache.allow_failover setting. Default to TRUE, meaning the server should be considered online.

Allows the user to specify a callback function to run upon encountering an error. The callback is run before failover is attemped. The function takes two parameters, the hostname and port of the failed server.