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3.5.2 MySQL Cluster Interconnects and Performance »
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3.5.1. Configuring MySQL Cluster to use SCI Sockets

It is possible employing Scalable Coherent Interface (SCI) technology to achieve a significant increase in connection speeds and throughput between MySQL Cluster data and SQL nodes. To use SCI, it is necessary to obtain and install Dolphin SCI network cards and to use the drivers and other software supplied by Dolphin. You can get information on obtaining these, from Dolphin Interconnect Solutions. SCI SuperSocket or SCI Transporter support is available for 32-bit and 64-bit Linux, Solaris, Windows, and other platforms. See the Dolphin documentation referenced later in this section for more detailed information regarding platforms supported for SCI.

Note

Prior to MySQL 5.1.20, there were issues with building MySQL Cluster with SCI support (see Bug#25470), but these have been resolved due to work contributed by Dolphin. SCI Sockets are now correctly supported for MySQL Cluster hosts running recent versions of Linux using the -max builds, and versions of MySQL Cluster with SCI Transporter support can be built using either of compile-amd64-max-sci or compile-pentium64-max-sci. Both of these build scripts can be found in the BUILD directory of the MySQL Cluster source trees; it should not be difficult to adapt them for other platforms. Generally, all that is necessary is to compile MySQL Cluster with SCI Transporter support is to configure the MySQL Cluster build using --with-ndb-sci=/opt/DIS.

Once you have acquired the required Dolphin hardware and software, you can obtain detailed information on how to adapt a MySQL Cluster configured for normal TCP/IP communication to use SCI from the Dolphin Express for MySQL Installation and Reference Guide, available for download at http://docsrva.mysql.com/public/DIS_install_guide_book.pdf (PDF file, 94 pages, 753 KB). This document provides instructions for installing the SCI hardware and software, as well as information concerning network topology and configuration.