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    Latest News

    MySQL AB Launches MySQL Cluster – the First Open Source Database Clustering Solution
    Thursday April 15 2004 @ 01:29PM EDT

    MySQL Cluster Cost-Effectively Delivers 99.999% Availability for Critical Business Data

    MySQL AB, developer of the world's most popular open source database, today launched MySQL Cluster, a new open source database clustering technology for applications requiring continuous availability. MySQL Cluster combines the MySQL® database with a clustering architecture to deliver 99.999 percent availability to mission-critical database applications. It is the first affordable, enterprise-scale database clustering software.

    “The increasing volume of critical data, transactions and users in today’s ‘always on’ Internet and networked environments has made high availability a necessity for companies,” said Mårten Mickos, MySQL AB CEO. “MySQL Cluster has the availability, scalability and throughput for the most demanding applications, and its affordability makes clustering an option for any organization. This product demonstrates our commitment to make superior database management available and affordable to all.”

    High Availability Version of World’s Most Popular Open Source Database

    MySQL Cluster features the MySQL database coupled with a distributed, in-memory clustering architecture to maximize the availability and throughput of critical data. In a database cluster, data is distributed over a group of inter-connected databases residing on multiple servers, or nodes. With MySQL Cluster, the databases in the cluster work as one powerful, fault-tolerant database running on low-cost commodity hardware and software.

    “MySQL has come a long way in offering a reliable open source DBMS to the community, and with MySQL clustering product it extends its boundaries even further by addressing the higher availability and scalability requirements to support mission critical applications,” noted Noel Yuhanna, senior analyst at Forrester Research. “The new clustering solution makes MySQL look attractive to customers that are looking for enterprise level DBMS features at low cost.”

    MySQL Cluster enables cost-effective, mainframe-level reliability by providing:

    99.999% availability: MySQL Cluster delivers “five nines” availability using a parallel server architecture.

    High performance and throughput: MySQL Cluster is a main memory database that provides a response time of 5-10 millisecond and throughput of 100,000 replicated transactions per second (on a typical low-end configuration of a four-node cluster, with two CPUs per node)

    No single point of failure: MySQL Custer implements a distributed, highly fault tolerant architecture with no single point of failure.

    Fast failover: In the event of failure, MySQL Cluster provides sub-second failover, enabling users to deliver service without interruption.

    Scalability: Users can incrementally grow their applications as business needs increase, using commodity hardware with near-linear scalability.

    Low-cost: MySQL Cluster runs on commodity hardware and open source software, and its “shared-nothing” architecture does not require any additional shared disk storage investment.

    Sweden’s Largest ISP Improves Business, Reduces Costs with MySQL Cluster

    Bredbandsbaloget (B2) is one of Sweden's largest broadband Internet service providers, providing broadband Internet access and VoIP services to over 175,000 customers. B2 has chosen MySQL Cluster to meet the high availability needs required for its Core Network Operations Platform.

    "Service availability is the number one requirement for our customers," said Lars-Åke Norling, CTO of B2. " MySQL Cluster delivers the high-availability that enables us to guarantee continuous broadband Internet access and VoIP services to our subscribers. This has had an immediate impact in significantly improving customer satisfaction, and has also reduced the cost of operating our network. We now have the scalable infrastructure to aggressively grow our subscriber base and offer new value added services."


    MySQL AB is offering MySQL Cluster under its "dual license" business model. It will be provided at no cost under the free software/open source GNU General Public License (GPL) for open source projects and also under a commercial license for software vendors and other commercial MySQL customers.

    A preview version of MySQL Cluster is now available for download under the open source GPL license from the MySQL Web site at A production version will be available under both the GPL license and a commercial license in Q3 2004.

    MySQL Cluster runs across a variety of hardware and software platforms, including the Linux, Microsoft Windows, Sun Solaris, and Mac OS X. For more information about MySQL Cluster, please go to

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