libmemcached_configuration man page

libmemcached_configuration — libmemcached Documentation


#include <libmemcached-1.0/memcached.h>


memcached_st *memcached(const char *string, size_t string_length)

memcached_return_t libmemcached_check_configuration(const char *option_string, size_t length, char *error_buffer, size_t error_buffer_size)

Compile and link with -lmemcached


Libmemcached implements a custom language for configuring and modifying servers. By passing in an option string you can generate a memcached_st object that you can use in your application directly.


Provide a servername to be used by the client. Providing a weight will cause weighting to occur with all hosts with each server getting a default weight of 1.


Provide a filepath to a UNIX socket file. Providing a weight will cause weighting to occur with all hosts with each server getting a default weight of 1.


Verify that keys that are being used fit within the design of the protocol being used.




Force all connections to use the binary protocol.




Provide a configuration file to be used to load requests. Beware that by using a configuration file libmemcached will reset memcached_st based on information only contained in the file.




Set the distribution model used by the client. See :manpage:`` for more details.


Set the hashing alogrthm used for placing keys on servers.


When enabled the prefix key will be added to the key when determining which server to store the data in.


Enable "no reply" for all calls that support this. It is highly recommended that you use this option with the binary protocol only.


Set the nummber of servers that keys will be replicated to.


Select randomly the server within the replication pool to read from.


When adding new servers always calculate their distribution based on sorted naming order.


See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_SUPPORT_CAS


See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_USE_UDP


A namespace is a container that provides context for keys, only other requests that know the namespace can access these values. This is accomplished by prepending the namespace value to all keys.

Mecached Pool Options


Initial size of pool.


Maximize size of the pool.

I/O Options


See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_TCP_NODELAY


See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_TCP_KEEPALIVE


See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_RETRY_TIMEOUT


See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT


See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_SND_TIMEOUT


See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE


See memcached_behavior_set(3) for MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE


That sets the value of the timeout used by :manpage: poll().








Include a file in configuration. Unlike --CONFIGURE-FILE= this will not reset memcached_st


Reset memcached_st and continue to process.


End configutation processing.


End configutation processing and throw an error.


memcached() returns a pointer to the memcached_st that was created (or initialized). On an allocation failure, it returns NULL.


const char *config_string= "--SERVER=host10.example.com --SERVER=host11.example.com --SERVER=host10.example.com"
memcached_st *memc= memcached(config_string, strlen(config_string);


To find out more information please check: http://libmemcached.org/

See Also

memcached(1) libmemcached(3) memcached_strerror(3)


Brian Aker

Referenced By

memcached_pool(3), memcached_pool_behavior_get(3), memcached_pool_behavior_set(3), memcached_pool_create(3), memcached_pool_destroy(3), memcached_pool_fetch(3), memcached_pool_pop(3), memcached_pool_push(3), memcached_pool_release(3), memcached_pool_st(3).

Explore man page connections for libmemcached_configuration(3).

libmemcached 1.0.18 February 09, 2014