Tag - Frederic Descamps

Get a handle on your HA at Percona Live London 2014

From left: Liz van Dijk, Frédéric Descamps and Kenny Gryp
If you’re following this blog, it’s quite likely you’re already aware of the Percona Live London 2014 conference coming up in just a few days. Just in case, though (you know, if you’re still looking for an excuse to sign up), I wanted to put a spotlight […]

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Looking forward to Oracle OpenWorld 2014; visit us at Booth 2413!

I’m excited to once again be heading to San Francisco next week for Oracle OpenWorld, and also very pleased to have a booth there this year along with some great speakers from Percona.
The scope of Oracle OpenWorld 2014, which runs Sept. 28-Oct. 2, is enormous and there are several keynotes and sessions I’m looking […]

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Using sysbench 0.5 for performing MySQL benchmarks

Given the recent excitement & interest around OpenStack I wanted to make sure I was ready to conduct appropriate evaluations of system performance.  I generally turn to sysbench since it comes with a variety of different tests (accessed via –test= option interface), including:

fileio – File I/O test
cpu – CPU performance test
memory – Memory functions […]

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MariaDB: Selective binary logs events

In the first post in a series on MariaDB features we find interesting, we begin with selectively skipping replication of binlog events. This feature is available on MariaDB 5.5 and 10.
By default when using MySQL’s standard replication, all events are logged in the binary log and those binary log events are replicated to all slaves […]

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Location for InnoDB tablespace in MySQL 5.6.6

There is one new feature in MySQL 5.6 that didn’t get the attention it deserved (at least from me 😉 ) : “DATA DIRECTORY” for InnoDB tables.
This is implemented since MySQL 5.6.6 and can be used only at the creation of the table. It’s not possible to change the DATA DIRECTORY with an ALTER […]

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innotop 1.9.1 released

Lefred and I spent a bit of time making innotop 1.9.1.
We’ve released a new version mainly to include MySQL 5.6 support as well as including some bugs fixed by Baron Schwartz and Frédéric Descamps.
You can download the .tar.gz and rpm’s (new!) at
http://code.google.com/p/innotop/downloads/list
Bugs fixed:

Issue 71: DBI prints to STDERR instead of just throwing an inactive statement error
Issue 73: […]

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2 new features added to Percona XtraDB Cluster (PXC) since 5.5.31

With the last Percona XtraDB Cluster (PXC) release, two major features were added:
* a new command to bootstrap the cluster was added to the init script
* SST via Xtrabackup now supports Xtrabackup 2.1 features
In this post, I want to explain the benefits of these added features and how to use them.
If you follow the […]

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