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MariaDB 5.3 is released as GA!

Congratulations to Monty Program and the many community contributors for releasing the GA version of MariaDB 5.3. We were in our annual all-staff meeting last week, so we are a little slow to blog about …

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What is innodb_support_xa?

A common misunderstanding about innodb_support_xa is that it enables user-initiated XA transactions, that is, transactions that are prepared and then committed on multiple systems, with an external transaction coordinator. This is actually not precisely what …

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MySQL Limitations Part 2: The Binary Log

This is the second in a series on what’s seriously limiting MySQL in certain circumstances (links: part 1). In the first part, I wrote about single-threaded replication. Upstream from the replicas is the primary, which …

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Announcing TokuDB v3.1

Tokutek is pleased to announce immediate availability of TokuDB for MySQL, version 3.1. It is designed for continuous querying and analysis of large volumes of rapidly arriving and changing data, while maintaining full ACID properties. TokuDB …

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How many fsync / sec FusionIO can handle

I recently was asked how many fsync / sec ( and therefore durable transactions / sec) we can get on FusionIO card. It should be easy to test, let’s take sysbench fileio benchmark and run, …

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Great work Innodb Team

I thought I should praise Innodb team for all the work they have been doing recently. We see a lot of cool stuff happening, especially in the area of our interest which is Performance And …

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Innodb plugin 1.0.4 released – great job Innobase

As you might have seen Innodb Plugin 1.0.4 was released today. I am very excited to see this release which is released exactly 5 months after release of Innodb Plugin 1.0.3 (I honestly expected to …

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When would you use SAN with MySQL ?

One question which comes up very often is when one should use SAN with MySQL, which is especially popular among people got used to Oracle or other Enterprise database systems which are quite commonly deployed …

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XtraDB storage engine release 1.0.2-3 (Spring edition) codename Sapporo

Today we announce release 1.0.2-3 of our XtraDB storage engine. Here is a list of enhancements: Move to MySQL 5.1.31 Scalability fix — ability to use several rollback segments Increasing the number of rseg may …

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How much overhead DRDB could cause ?

I was working with the customer today investigating MySQL over DRBD performance issues. His basic question was why there is so much overhead with DRBD in my case, while it is said there should be …

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