libmemcached Command-Line Utilities In addition to the main C library interface, libmemcached also includes a number of command-line utilities that can be useful when working with and debugging me...
libmemcached Get Functions The libmemcached functions provide both direct access to a single item, and a multiple-key request mechanism that provides much faster responses when fetching a large number of keys simultaneously. The main get-style function, which is equivalent to the generic get() is...
libmemcached Server Functions The libmemcached API uses a list of servers, stored within the memcached_server_st structure, to act as the list of servers used by the rest of the functions. To use memcached, you first create the server list, an...
libmemcached Set Functions The set-related functions within libmemcached provide the same functionality as the core functions supported by the memcached protocol. The full definition for the different functions is the same for all the base fun...
Limitations Relating to Multiple MySQL Cluster Nodes Multiple SQL nodes. The following are issues relating to the use of multiple MySQL servers as MySQL Cluster SQL nodes, and are specific to the NDBCLUSTER storage engine: • No distributed table locks. A LOCK TABLES works only for the SQL node o...
Limits Associated with Database Objects in MySQL Cluster Some database objects such as tables and indexes have different limitations when using the NDBCLUSTER storage engine: • Number of database objects. The maximum number of all NDB database objects in a single MySQL Cluster—including database...
Limits imposed by the cluster's configuration. A number of hard limits exist which are configurable, but available main memory in the cluster sets limits. See the complete list of configuration parameters in Section 17.3.2, “MySQL Cluster Configu...
Management clients. These clients connect to the management server and provide commands for starting and stopping nodes gracefully, starting and stopping message tracing (debug versions only), showing node versions and status, starting and stoppi...
Management node. The only executable program required on a computer used for hosting a MySQL Cluster management node is the management server program ndb_mgmd.exe. However, in order to administer the MySQL Cluster once it has been started, you sh...
Management nodes. Installation of the management node does not require the mysqld binary. Only the MySQL Cluster management server (ndb_mgmd) is required; you most likely want to install the management client (ndb_mgm) as well. Both of these bina...
