Ideas, releases, practical guides, and perspectives from the people building with MySQL.
How To Repair MySQL Replication
If you have set up MySQL replication, you probably know this problem: sometimes there are invalid MySQL queries which cause the replication to not work anymore. In this short guide I explain how you can repair the replication on the MySQL slave without the need to set it up from scratch again.
How To Repair MySQL Replication
If you have set up MySQL replication, you probably know this problem: sometimes there are invalid MySQL queries which cause the replication to not work anymore. In this short guide I explain how you can repair the replication on the MySQL slave without the need to set it up from scratch again.
While this blog is co-authored by the whole MySQL Telecom team, many members in or around the team also write their personal blogs, which you will find very useful. So please follow me on a tour on the absolute top MySQL Cluster blogs in the world:
Johan Andersson is the MySQL Cluster Principal Consultant, and has been with MySQL Cluster since the Ericsson days. He travels around the world to our most demanding customers and shares his guru advice. Rumor has it that recently on a training gig the students made him sign their MySQL t-shirts, can you get closer to living like a rock star than this? Occasionally he also shares some great tips and status info on his blog. Like right now you can find a set of handy scripts to manage all of your MySQL Cluster from one command line, definitively recommended to try!
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[Read more]mysql 5.1 is nearing release, with the present release candidate 5.1.24.
The most important new feature, in my eyes, is the new partitioning capability. When I get some time, I will write up a more complete post on my experiences so far with 5.1 partitioning, but I am going to try to keep the turnover on posts a bit higher, and post smaller things on here more regularly.
Partitioning has the potential to make large tables in mysql manageable once again. This is music to the ears of anyone that has had the misfortune of having to learn, the hard way, about MyISAM’s often painfully slow “Repair by keycache” loading and repairing of large tables with unique keys. Add that to MyISAM’s propensity to table corruption, especially with large tables, and you have a ticking timebomb on many pre-5.1 servers out there. If you are lucky, you can repair a …
[Read more]Backing up MySQL Database most people compress them - which can make a good sense in terms of backup and recovery speed as well as space needed or be a serious bottleneck depending on circumstances and approach used.
First I should mention this question mainly arises for medium and large size databases - for databases below 100GB in size compression performance is usually not the problem (though backup impact on server performance may well be).
We also assume backup is done on physical level here (cold backup, slave backup, innodb hot backup or snapshot backup) as this is only way practical at this point for databases of decent size.
Two important compression questions you need to decide for backup is where to do compression (on the source or target server if you backup over network) and which compression software to use.
Compression on source server is most typical approach and it is great, …
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If you're around Brisbane, do join us next Tuesday evening for a
combined MySQL/PHP meetup... info at http://mysql.meetup.com/84/
Ian Clatworthy (Canonical) will be presenting on Distributed
Version Control, such as is used in Bazaar, Mercurial and Git.
You may be using SVN/SVK now, but DVCS is definitely worth a
look; it's a different approach that makes you (and your team)
more productive, and avoids many common version control problems
(think "everybody stop working we're doing a merge", or "eek I
had this right half a hour ago").
To give you an idea of how important this stuff is.... a brief
snip from a conversation I just had with a developer:D: I was
wondering whether you got to set up that mercurial
repository?
A: sorry not yet. but I presume you've created a local one with
hg init so that can be pushed at any time when I create it, it
won't …
While this blog is co-authored by the whole MySQL Telecom team, many members in or around the team also write their personal blogs, which you will find very useful. So please follow me on a tour on the absolute top MySQL Cluster blogs in the world:
Johan Andersson is the MySQL Cluster Principal Consultant, and has been with MySQL Cluster since the Ericsson days. He travels around the world to our most demanding customers and shares his guru advice. Rumor has it that recently on a training gig the students made him sign their MySQL t-shirts, can you get closer to living like a rock star than this? Occasionally he also shares some great tips and status info on his blog. Like right now you can find a set of handy scripts to manage all of your MySQL Cluster from one command line, definitively recommended to try!
…
[Read more]While this blog is co-authored by the whole MySQL Telecom team, many members in or around the team also write their personal blogs, which you will find very useful. So please follow me on a tour on the absolute top MySQL Cluster blogs in the world:
Johan Andersson is the MySQL Cluster Principal Consultant, and has been with MySQL Cluster since the Ericsson days. He travels around the world to our most demanding customers and shares his guru advice. Rumor has it that recently on a training gig the students made him sign their MySQL t-shirts, can you get closer to living like a rock star than this? Occasionally he also shares some great tips and status info on his blog. Like right now you can find a set of handy scripts to manage all of your MySQL Cluster from one command line, definitively recommended to try!
…
[Read more]Big changes in this release.
Features:
Today High Performance MySQL, Second Edition went to press. I’ve been working with the production team over the last couple of weeks, proofreading and checking the index and working with the artist who re-drew the illustrations. I spoke to the production editor this morning and she told me the schedule is for the bound-book date to be the 16th of June. The official in-stock date is June 19th. I don’t know how many copies they’re printing for the first printing.