November 1, 2014

How to find bugs in MySQL

Finding bugs in MySQL is not only fun, it’s also something I have been doing the last four years of my life. Whether you want to become the next Shane Bester (who is generally considered the most skilled MySQL bug hunter worldwide), or just want to prove you can outsmart some of the world’s best […]

Quick link to Percona Toolkit bugs

In this post I wanted to highlight percona.com/bugs/<tool> , for example: percona.com/bugs/pt-stalk.  This only works for Percona Toolkit.  We often advise people to check a tool’s current bugs, but we don’t always say how. The official link for Percona Toolkit bugs on Launchpad is https://bugs.launchpad.net/percona-toolkit/+bugs, but then you still have search from there.  So this quick link […]

Percona response to recent MySQL security bugs

Recently there have been discussions on several vulnerabilities in MySQL and closely related projects such as MariaDB and Percona Server. Usually we have inherited security fixes from MySQL when we have updated Percona Server to be based off a new Oracle MySQL release. In this case however, Oracle has been incredibly quiet. We’ve been examining […]

MySQL Pays attention to Bugs (Finally!)

I should say I can see results of new engineering/refactoring/bug hunt efforts inside Sun/MySQL. Over last couple of weeks I started getting a lot of messages from the bugs system about bugs I reported long ago which were deferred to be fixed later or were left in open state. Here is example of such a […]

What Bugs makes you to recomend upgrade most frequently ?

What bug makes you to recommend upgrading most frequently ? For me it is this bug which makes it quite painful to automate various replication tasks. It is not the most critical bug by far but this makes it worse – critical bugs would usually cause upgrades already or were worked around while such stuff […]

How quickly you should expect to see bugs fixed

Over a year ago I wrote about pretty nasty Innodb Recovery Bug. I ran in the same situation again (different system, different customer) and went to see the status of the bug… and it is still open. You may thing it is minor issue but in fact with large buffer pool this bug makes database […]

Making bugs public – good job MySQL

If you have been MySQL User for many years you might remember the times when MySQL had “zero bugs policy”, this is when all known bugs really were fixed before release was made. To be honest at that time bugs were reported via bugs mailing list not via bugs database as they are now so […]

Percona XtraDB Cluster: How to run a 2-node cluster on a single server

I reckon there’s little sense in running 2 or more Percona XtraDB Cluster (PXC) nodes in a single physical server other than for educational and testing purposes – but doing so is still useful in those cases. The most popular way of achieving this seems to be with server virtualization, such as making use of Vagrant boxes. […]

How to close POODLE SSLv3 security flaw (CVE-2014-3566)

Padding Oracle On Downgraded Legacy Encryption First off, the naming “convention” as of late for security issues has been terrible. The newest vulnerability (CVE­-2014-3566) is nicknamed POODLE, which at least is an acronym and as per the header above has some meaning. The summary of this issue is that it is much the same as the […]

Percona Server 5.6.21-69.0 is now available

Percona is glad to announce the release of Percona Server 5.6.21-69.0 on October 7, 2014. Download the latest version from the Percona web site or from the Percona Software Repositories. Based on MySQL 5.6.21, including all the bug fixes in it, Percona Server 5.6.21-69.0 is the current GA release in the Percona Server 5.6 series. Percona Server is […]