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author | Continuous Integration <ci@tangent.org> | 2014-02-16 03:31:37 -0800 |
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committer | Continuous Integration <ci@tangent.org> | 2014-02-16 03:31:37 -0800 |
commit | b163cbc1e82ea834b66e3b4c1e8070394ccb506d (patch) | |
tree | 999734df2e2c288d6726af31f9336beadb2a781a /docs/source/libmemcached_configuration.rst | |
parent | 8541a9863cffad457f4d583af6a6c3613250193d (diff) | |
parent | 37deb7fa75a0b3fbea4d58c032446213f0d5a02a (diff) | |
download | libmemcached-trunk.tar.gz |
Diffstat (limited to 'docs/source/libmemcached_configuration.rst')
-rw-r--r-- | docs/source/libmemcached_configuration.rst | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/docs/source/libmemcached_configuration.rst b/docs/source/libmemcached_configuration.rst new file mode 100644 index 00000000..e0f51b12 --- /dev/null +++ b/docs/source/libmemcached_configuration.rst @@ -0,0 +1,230 @@ +======================== +Configuring Libmemcached +======================== + +.. highlightlang:: c + +-------- +SYNOPSIS +-------- + +#include <libmemcached-1.0/memcached.h> + +.. envvar:: LIBMEMCACHED + +.. c:function:: memcached_st *memcached(const char *string, size_t string_length) + +.. c:function:: 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 + + +----------- +DESCRIPTION +----------- + +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. + +.. describe:: --SERVER=<servername>:<optional_port>/?<optional_weight> + +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. + +.. describe:: --SOCKET=\"<filepath>/?<optional_weight>\" + +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. + +.. describe:: --VERIFY-KEY + +Verify that keys that are being used fit within the design of the protocol being used. + +.. describe:: --REMOVE_FAILED_SERVERS + +Enable the behavior :c:type:`MEMCACHED_BEHAVIOR_REMOVE_FAILED_SERVERS`. + +.. describe:: --BINARY-PROTOCOL + +Force all connections to use the binary protocol. + +.. describe:: --BUFFER-REQUESTS + +Please see :c:type:`MEMCACHED_BEHAVIOR_BUFFER_REQUESTS`. + +.. describe:: --CONFIGURE-FILE= + +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. + +.. describe:: --CONNECT-TIMEOUT= + +Please see :c:type:`MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT`. + +.. describe:: --DISTRIBUTION= + +Set the distribution model used by the client. See :manpage:`` for more details. + +.. describe:: --HASH= + +Set the hashing alogrthm used for placing keys on servers. + +.. describe:: --HASH-WITH-NAMESPACE + +When enabled the prefix key will be added to the key when determining which +server to store the data in. + +.. describe:: --NOREPLY + +Enable "no reply" for all calls that support this. It is highly recommended +that you use this option with the binary protocol only. + +.. describe:: --NUMBER-OF-REPLICAS= + +Set the nummber of servers that keys will be replicated to. + +.. describe:: --RANDOMIZE-REPLICA-READ + +Select randomly the server within the replication pool to read from. + +.. describe:: --SORT-HOSTS + +When adding new servers always calculate their distribution based on sorted naming order. + +.. describe:: --SUPPORT-CAS + +See :manpage:`memcached_behavior_set(3)` for :c:type:`MEMCACHED_BEHAVIOR_SUPPORT_CAS` + +.. describe:: --USE-UDP + +See :manpage:`memcached_behavior_set(3)` for :c:type:`MEMCACHED_BEHAVIOR_USE_UDP` + +.. describe:: --NAMESPACE= + +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: +********************** + +.. describe:: --POOL-MIN + +Initial size of pool. + +.. describe:: --POOL-MAX + +Maximize size of the pool. + +************ +I/O Options: +************ + +.. describe:: --TCP-NODELAY + +See :manpage:`memcached_behavior_set(3)` for MEMCACHED_BEHAVIOR_TCP_NODELAY + +.. describe:: --TCP-KEEPALIVE + +See :manpage:`memcached_behavior_set(3)` for MEMCACHED_BEHAVIOR_TCP_KEEPALIVE + +.. describe:: --RETRY-TIMEOUT= + +See :manpage:`memcached_behavior_set(3)` for MEMCACHED_BEHAVIOR_RETRY_TIMEOUT + +.. describe:: --SERVER-FAILURE-LIMIT= + +See :manpage:`memcached_behavior_set(3)` for MEMCACHED_BEHAVIOR_SERVER_FAILURE_LIMIT + +.. describe:: --SND-TIMEOUT= + +See :manpage:`memcached_behavior_set(3)` for MEMCACHED_BEHAVIOR_SND_TIMEOUT + +.. describe:: --SOCKET-RECV-SIZE= + +See :manpage:`memcached_behavior_set(3)` for MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE + +.. describe:: --SOCKET-SEND-SIZE= + +See :manpage:`memcached_behavior_set(3)` for MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE + +.. describe:: --POLL-TIMEOUT= + +That sets the value of the timeout used by :manpage: `poll()`. + +.. describe:: --IO-BYTES-WATERMARK= + +.. describe:: --IO-KEY-PREFETCH= + +.. describe:: --IO-MSG-WATERMARK= + +.. describe:: --TCP-KEEPIDLE + +.. describe:: --RCV-TIMEOUT= + + + +****** +Other: +****** + + +.. describe:: INCLUDE + +Include a file in configuration. Unlike --CONFIGURE-FILE= this will not reset memcached_st + +.. describe:: RESET + +Reset memcached_st and continue to process. + +.. describe:: END + +End configutation processing. + +.. describe:: ERROR + +End configutation processing and throw an error. + + +------ +RETURN +------ + + +:c:func:`memcached()` returns a pointer to the memcached_st that was +created (or initialized). On an allocation failure, it returns NULL. + + + +------- +EXAMPLE +------- + + +.. code-block:: c + + 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); + { + ... + } + memcached_free(memc); + + + +---- +HOME +---- + + +To find out more information please check: +`http://libmemcached.org/ <http://libmemcached.org/>`_ + + + +-------- +SEE ALSO +-------- + + +:manpage:`memcached(1)` :manpage:`libmemcached(3)` :manpage:`memcached_strerror(3)` |