General
What’s new in MySQL 5.4.1
Absolutely nothing? 5.4.0 was released with a change in the MySQL Binary distributions , delivering only 1 64bit Linux platform and two Sun Solaris platforms. This was officially announced on April 21 2009 however the 5.
Read moreWhat to do at 3:25am
Look at MySQL bug reports of course? Well actually I’m writing multiple blog posts, and I was confirming additional reference sources and links when I came across MySQL Bug #29847 – Large CPU usage of InnoDB crash recovery with a big buf pool.
Read moreNever let your binlog directory fill up
Recently with a client while running a number of disaster recovery tests I came across a nasty situation which was not part of the original plan and provided a far worse disaster situation then expected.
Read moreAn important Drizzle/MySQL difference
There are many features that are similar in MySQL and Drizzle. There are also many that are not. I’ve previously discussed topics like Datatypes and tables , SQL_MODE and SHOW .
Read moreThe confusion over global and session status
I was trying to demonstrate to a client how to monitor queries that generate internal temporary tables. With an EXPLAIN plan you see ‘Creating temporary’. Within MySQL you can use the SHOW STATUS to look at queries that create temporary tables.
Read moreBenchmarking Drizzle with MyBench(DBD::drizzle)
With thanks to Patrick Galbraith and his DBD::drizzle 0.200 I am now able to test client benchmarks side by side with MySQL and Drizzle. For simple benchmarking with clients, generally when I have little time, I use a simple Perl framework mybench .
Read moreMiFi Installation woes
As I mentioned in MiFi Introduction I took the plunge and purchased a Verizon MiFi . I got this under a 2 year contract for $149.99 and $59.99 per month for 5GB of traffic.
Read moreMiFi Introduction
My first news of the Verizon MiFi was via Twitter when @DonMacAskill said “Think my iPhone 3G via MiFi is faster than AT&T 3G. Should I carry both all the time now?
Read moreUsing statpack with SHOW STATUS
Mark Leith, on of the MySQL Support Team managers wrote some time ago a very nice utility I use often called Statpack . My use of Statpack is very simple. Take two snaphots of SHOW GLOBAL STATUS and compare to produce a text based version of the statistics.
Read moreThe value of multi insert values
Baron got a great amount of response from his 50 things to know before migrating Oracle to MySQL . I’m glad I invited him as a fellow MySQL colleague to my presentation to the Federal Government on Best Practices for Migrating to MySQL from Oracle and SQL Server for his inspiration.
Read moreWhat is max_tmp_tables?
Recently I came across another configuration option I’d not heard of before. I profess to not know them all, however I do know when I find something unusual. If you are a beginner DBA, learn what is normal and expected, and identify what is out of the normal, investigate, research and question if necessary.
Read moreO’Reilly Twitter Boot Camp a success
The first O’Reilly Twitter Boot Camp – #OTBC was held in New York as a pre cursor to 140 Characters Conference – #140conf on Monday 15th June, 2009. With opening and closing keynotes were like matching bookends of The Twitter Book #twitterbook offered to all attendees and authored by the keynoters @timoreilly and @SarahM .
Read moreWafflecloud with cream
I have been working recently with Matt Yonkovit to get Waffle Grid cloud enabled with Amazon Web Services (AWS) . An initial version of Waffle Grid Cream – Version 0.5 release is now available.
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