10 reaons active-active is hard and how to solve it

Multi-master replication provides redundant copies of your most important business assets. What’s more it allows applications to scale out, which is perfect for cloud hosting solutions like Amazon Web Services. But when you decide you need to scale your write capacity, you may be considering active-active setup. This is dangerous, messy and prone to failure. …

Why does MySQL replication fail?

When considering active-active multi-master, you must consider it’s foundation technology. Although MySQL replication is straightforward to setup, it can fail in a myriad of ways. Most of those are known and well understood. We can solve them only if we use the technology in the standard way. Click through to the end for multi-master solutions …

Don't Miss Percona Live 2013

The biggest event on the MySQL calendar is the yearly Percona Live and it’s just around the corner. This year you’ll be able to pick from a whopping 110 technical sessions by 90 different speakers from companies like Facebook, Amazon, Google and Linkedin. Learn what’s happening at the cutting edge of open source database deployments. …

Cloud DBA and Management Interview

What does a cloud computing expert need to know? This is the last of a three part guide to interviewing for a cloud operations position. You can find them here – part one Operations Interview and part two Deployment Interview. Here’s my guide to do just that. 1. Database administration experience Although in some shops …

Thoughts on Upcoming MySQL 5.6 Defaults

During Oracle Open World 2012 and the parallel MySQL Connect conference, the new 5.6 version was announced. It’s only release candidate right now, but that means the GA release is just around the corner. With that James Day has posted changes to various of the new parameter defaults. Many of them you may not run …

10 ways I avoid trouble in database operations

1. Avoid destructive commands From time to time I’m working with new recruits and bringing them up to speed in operations. The first thing I emphasize is care with destructive commands. What do I mean here? Well there are all sorts of them. SQL commands such as DROP table & DROP database. But also TRUNCATE …

Why you should attend Percona Live 2012

What I loved about Percona Live 2011 Last year I was excited to go to Percona Live for the first time in NYC. I arrived just in time to hear Harrison Fisk from Facebook speak about some of the awesome tweaks they’re running with MySQL there. It’s not everyday that you get to hear from …

5 Things You Overlooked with MySQL Dumps

1. Point In Time Recovery If you’ve never done point in time recovery, it’s time to take a second look. With a standard mysqldump you restore your database to the time when the backup happened. Only do them once a day, then you can lose as much as 24 hours of data. Enter point-in-time recovery, …

Oracle DBAs… You Know You Want MySQL!

If you’re an Oracle DBA or developer and considering migrating an application over to MySQL you probably have a lot of questions. Here’s a five minute summary of what you should know. Looking to hire a top flight MySQL DBA? Check out our MySQL interview guide. What is truly delicious o a command line that’s …

Bulletproofing MySQL replication with checksums

Also find Sean Hull’s ramblings on twitter @hullsean. Your MySQL replcas running well? You might not even know if they aren’t. One of the scariest things about MySQL replication is that it can drift out of sync with the master “silently”. No errors, no warnings. What and Why? MySQL’s replication solution evolved as a statement …