A.10 MySQL 5.0 FAQ: MySQL Cluster. MySQL Cluster. MySQL Cluster is a technology providing shared-nothing clustering and auto-sharding for the MySQL database management system. It is designed to provide high availability and high throughput with low latency, while allowing for near linear scalability.[2] MySQL Cluster is implemented through the NDB or NDBCLUSTER storage engine for MySQL ("NDB" stands for Network Database). Architecture[edit] MySQL Cluster is designed around a distributed, multi-master ACID compliant architecture with no single point of failure. MySQL Cluster uses automatic sharding (partitioning) to scale out read and write operations on commodity hardware and can be accessed via SQL and Non-SQL (NoSQL) APIs Replication[edit] Internally MySQL Cluster uses synchronous replication through a two-phase commit mechanism in order to guarantee that data is written to multiple nodes upon committing the data.
(This is in contrast to what is usually referred to as "MySQL Replication", which is asynchronous.) Hybrid Storage[edit] or. Lists: cluster / 2010-09. Login / Register Threads for Dec 2013 Search mailing lists for: Cluster Discussion about MySQL Cluster. To post to the list, send email to cluster@lists.mysql.com. Unsubscribe email address: Subscribe email address: to the If you are having problems unsubscribing from the list, please check our troubleshooting page. © 1995, 2014, Oracle Corporation and/or its affiliates Page generated in 0.017 sec.
Content reproduced on this site is the property of the respective copyright holders. Building a High-Availability MySQL Cluster. By Kris Buytaert 02/16/2006 Today's enterprise depends on the availability of mail and web services. Failure is never far away, whether it be a hardware failure or a human error. We have to try to make an infrastructure as highly available as possible. When building highly available clusters, people often choose one extra physical machine per service, creating an A-B, fail-over schema. With static websites, there is no problem making the application highly available; you can just store the data in two places. However, the moment you add a database to your environment, things start to become more difficult. The easy way out is to move the database to a different machine and move that server into a SEP field.
That's not how we do it. Later, many people tried to create a replication environment that implemented high availability. In late 2004 and early 2005, MySQL announced MySQL Cluster--the NDB storage engine from MySQL that plugs into the MySQL environment. How To Set Up A Load-Balanced MySQL Cluster. Version 1.0 Author: Falko Timme This tutorial shows how to configure a MySQL 5 cluster with three nodes: two storage nodes and one management node. This cluster is load-balanced by a high-availability load balancer that in fact has two nodes that use the Ultra Monkey package which provides heartbeat (for checking if the other node is still alive) and ldirectord (to split up the requests to the nodes of the MySQL cluster).
In this document I use Debian Sarge for all nodes. Therefore the setup might differ a bit for other distributions. The MySQL version I use in this setup is 5.0.19. If you do not want to use MySQL 5, you can use MySQL 4.1 as well, although I haven't tested it. This howto is meant as a practical guide; it does not cover the theoretical backgrounds. This document comes without warranty of any kind! 1 My Servers I use the following Debian servers that are all in the same network (192.168.0.x in this example): In addition to that we need a virtual IP address : 192.168.0.105. MySQL Cluster. Building an Open Source, Carrier Grade Platform for Data Management with MySQL Cluster. MySQL Cluster FAQ. Introduction to MySQL Cluster. Notes from the Introduction to MySQL Cluster talk at the 2004 MySQL User's Conference... First we're seeing an overview of the NDB architecture.
If you've never seen it before, think "Oracle RAC without shared storage" and you're 95% of the way there. The core NDB engine is a new storage engine inside MySQL. It provides transactions, replication, on-line backups, crash recovery, hash and tree indexes, on-line index builds, auto-detection of a failed node and re-sync when it comes back up. There are rolling upgrades, which provide a way to upgrade things without a disruption of service. Man, this would be a lot easier if I could draw ASCII art even half as fast as I can type. The NDB code is in the MySQL 4.1 tree as of today. History. Benchmarks on a 72 CPU SunFire box hit 380,000 write txns/sec and 1,500,000 read txns/sec. The management server handles the configuration of the cluster (config file, commands (start backup), and so on).
There is always a primary key. MySQL Forums :: Cluster. MySQL Resource Center: MySQL Cluster. MySQL Cluster FAQ. 1 Reference Manual :: A.10 MySQL 5.1 FAQ: MySQL Cluster. HAProxy - The Reliable, High Performance TCP/HTTP Load Balancer. How To Set Up A Load-Balanced MySQL Cluster With MySQL 5.1. Version 1.1 Author: Peter Okupski <okupski [at] widzew [dot] net> Last edited 18/12/2013 This tutorial is based on Falko Timme's tutorial for MySQL Cluster 5.0.
It shows how to configure a MySQL 5.1 cluster with five nodes: 1 x management, 2 x storage nodes and 2 x balancer nodes. This cluster is load-balanced by an Ultra Monkey package which provides heartbeat (for checking if the other node is still alive) and ldirectord (to split up the requests to the nodes of the MySQL cluster). In this document I use Debian Etch 4.0 for all nodes. Beginning with MySQL 5.1.6, it is possible to store the non-indexed columns of NDB tables on disk, rather than in RAM as with previous versions of MySQL Cluster. This howto is just a scratch to make it running, for many of you I am suggesting to read some off docs from MySQL page to be prepared to how manage the whole cluster and always know whats going on. This document comes without warranty of any kind! 1 My Servers Here is my hardware configuration: Download MySQL Cluster. MySQL Cluster in under 5 minutes.