NDB client programs. Client programs can be written that access MySQL Cluster data directly from the NDBCLUSTER storage engine, bypassing any MySQL Servers that may connected to the cluster, using the NDB API, a high-level C++ API. Such applicatio...
Network addressing. In the interest of simplicity (and reliability), this How-To uses only numeric IP addresses. However, if DNS resolution is available on your network, it is possible to use host names in lieu of IP addresses in configuring Cluster. Alternatively, you can use the hosts file (typi...
Network communication and latency. MySQL Cluster requires communication between data nodes and API nodes (including SQL nodes), as well as between data nodes and other data nodes, to execute queries and updates. Communication latency between these processes can directly affect the observed
Network hardware. Standard 100 Mbps or 1 gigabit Ethernet cards are installed on each machine, along with the proper drivers for the cards, and that all four hosts are connected through a standardissue Ethernet networking appliance such as a swi...
Node Group. A node group consists of one or more nodes, and stores partitions, or sets of replicas (see next item). The number of node groups in a MySQL Cluster is not directly configurable; it is a function of the number of data nodes and of the...
Node js support. MySQL Cluster NDB 7.3 also supports applications written in JavaScript using Node.js. The MySQL Connector for JavaScript includes adapters for direct access to the NDB storage engine and as well as for the MySQL Server. Applic...
Node. An ndbd process, which stores a replica —that is, a copy of the partition (see below) assigned to the node group of which the node is a member. Each data node should be located on a separate computer. While it is also possible to host multiple ndbd processes on a single computer, such a con...
Noncompliance with SQL Syntax in MySQL Cluster Some SQL statements relating to certain MySQL features produce errors when used with NDB tables, as described in the following list: • Temporary tables. Temporary tables are not supported. Trying either to create a temporary table that uses the NDB ...
Notes for the InnoDB Memcached Binlog: Binlog Format: • Most memcached operations are mapped to DML statements (analogous to insert, delete, u...
Obtaining the Replication Master Binary Log Coordinates To configure replication on the slave you must determine the master's current coordinates within its binary log. You will need this information so that when the slave starts the replication process, it is able to start processing events from...
