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MariaDB and the MySQL Sandbox

 | July 26, 2010 |  Posted In: Tokutek, TokuView

Tokutek tests its TokuDB Fractal Tree storage engine with multiple MySQL distributions. We make extensive use of the MySQL Sandbox in our test automation. We tweaked the regular expressions that match binary tarball names in the MySQL Sandbox so that MariaDB releases can be easily loaded by the MySQL Sandbox. These changes can be found […]

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Estimating Replication Capacity

 | July 20, 2010 |  Posted In: Insight for DBAs, MySQL

It is easy for MySQL replication to become bottleneck when Master server is not seriously loaded and the more cores and hard drives the get the larger the difference becomes, as long as replication remains single thread process. At the same time it is a lot easier to optimize your system when your replication runs […]

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SSD: Free space and write performance

 | July 17, 2010 |  Posted In: Benchmarks

( cross posting from SSD Performance Blog ) In previous post On Benchmarks on SSD, commenter touched another interesting point. Available free space affects write performance on SSD card significantly. The reason is still garbage collector, which operates more efficiently the more free space you have. Again, to read mode on garbage collector and write […]

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Data mart or data warehouse?

 | July 15, 2010 |  Posted In: Insight for Developers, MySQL

This is part two in my six part series on business intelligence, with a focus on OLAP analysis. Part 1 – Intro to OLAP Identifying the differences between a data warehouse and a data mart. (this post) Introduction to MDX and the kind of SQL which a ROLAP tool must generate to answer those queries. […]

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On Benchmarks on SSD

 | July 14, 2010 |  Posted In: Benchmarks, Hardware and Storage

(cross post from SSD Performance Blog ) To get meaningful performance results on SSD storage is not easy task, let’s see why. There is graph from sysbench fileio random write benchmark with 4 threads. The results were taken on PCI-E SSD card ( I do not want to name vendor here, as the problem is […]

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