From e30591f3047c9ed4d279fd963129a04f455a03da Mon Sep 17 00:00:00 2001 From: Johan Wikman Date: Wed, 9 Dec 2015 10:42:27 +0200 Subject: [PATCH] Update About-MaxScale.md --- About/About-MaxScale.md | 44 +++++++++++++++++++++++++++++++---------- 1 file changed, 34 insertions(+), 10 deletions(-) diff --git a/About/About-MaxScale.md b/About/About-MaxScale.md index 1db391d22..fe9d420df 100644 --- a/About/About-MaxScale.md +++ b/About/About-MaxScale.md @@ -1,23 +1,47 @@ # About MaxScale -The MariaDB Corporation **MaxScale** is an intelligent proxy that allows forwarding of database statements to one or more database servers using complex rules, which can be based on a semantic understanding of the database statements and the roles of the various servers within the backend cluster of databases. +The MariaDB Corporation **MaxScale** is an intelligent proxy that allows +the forwarding of database statements to one or more database servers. +The forwarding is performed using rules that can be based on a the semantic +understanding of the database statements and on the roles of the various +servers within the backend cluster of databases. -MaxScale is designed to provide load balancing and high availability functionality transparently to the applications. In addition it provides a highly scalable and flexible architecture, with plugin components to support different protocols and routing decisions. +MaxScale is designed to provide load balancing and high availability +functionality, transparently to applications. In addition, it provides +a highly scalable and flexible architecture, with plugin components to +support different protocols and routing approaches. -MaxScale is implemented in C so as to operate speedily. It also makes extensive use of the asynchronous I/O capabilities of the Linux operating system. The epoll system is used to provide the event driven framework for the input and output via sockets. Similar features in Windows® could be used in future development of MaxScale. +MaxScale makes extensive use of the asynchronous I/O capabilities of the +Linux operating system, combined with a fixed number of worker threads. +The epoll system is used to provide the event driven framework for the +input and output via sockets. Similar features in Windows® could +be used in future development of MaxScale. -Many of the services provided by MaxScale are implemented as external shared object modules which can be loaded at runtime. These modules support a fixed interface, communicating the entry points via a structure consisting of a set of function pointers. This structure is called the "module object". Additional modules can be created to work with MaxScale. +Many of the services provided by MaxScale are implemented as external +shared object modules which can be loaded at runtime. These modules +support a fixed interface, communicating the entry points via a structure +consisting of a set of function pointers. This structure is called the +"module object". Additional modules can be created to work with MaxScale. -One group of modules provides support for protocols, both for clients that communicate with MaxScale and for backend servers. The code that routes the queries to the backend servers is also loaded as external shared objects and they are referred to as routing modules. Another group of modules work on data as it passes through MaxScale, and they are known as filters. +One group of modules provides support for protocols, both for clients +that communicate with MaxScale and for backend servers. The code that +routes the queries to the backend servers is also loaded as external +shared objects and they are referred to as routing modules. Another +group of modules work on data as it passes through MaxScale, and they +are known as filters. -A Google Group exists for MaxScale that can be used to discuss ideas, issues and communicate with the MaxScale community: +A Google Group exists for MaxScale that can be used to discuss ideas, +issues and communicate with the MaxScale community: Send email to [maxscale@googlegroups.com](mailto:maxscale@googlegroups.com) or use the [forum](http://groups.google.com/forum/#!forum/maxscale) interface - + Bugs can be reported in the MariaDB Jira [https://mariadb.atlassian.net](https://mariadb.atlassian.net) ## Installing MaxScale -Information about installing MaxScale, either from a repository or by building from source code, is included in the [MariaDB MaxScale Installation Guide](../Getting-Started/MariaDB-MaxScale-Installation-Guide.md). - -The same guide also provides basic information on running MaxScale. More detailed information about configuring MaxScale is given in the [Configuration Guide](../Getting-Started/Configuration-Guide.md). +Information about installing MaxScale, either from a repository or by +building from source code, is included in the +[MariaDB MaxScale Installation Guide](../Getting-Started/MariaDB-MaxScale-Installation-Guide.md). +The same guide also provides basic information on running MaxScale. +More detailed information about configuring MaxScale is given in the +[Configuration Guide](../Getting-Started/Configuration-Guide.md).