EmergencyEMERGENCY? Get 24/7 Help Now!

Monthly Archives: July 2007

More Gotchas with MySQL 5.0

Working on large upgrade of MySQL 4.1 running Innodb to MySQL 5.0 and doing oprofile analyzes we found very interesting issue of buf_get_latched_pages_number being responsible for most CPU usage. It did not look right. The …

Read More
 
MySQL 5.0 Community Edition Regression

It is true you might be better of being unaware about problems, because in this case you might not run into them Just couple of days ago Kaj Arno told me there are issues reported …

Read More
 
MySQL on OSCON

Interesting enough this year people at OSCON do not show to much interest in the MySQL, and Databases for that reason. Our talk comparing performance of MySQL Storage Engines had probably 20-30 people, Monty’s talk …

Read More
 
MySQL and PostgreSQL SpecJAppServer benchmark results

Listening to Josh Berkus presentation on OSCON today I decided to take a closer look at SpecJAppServer benchmarks results which were published by PostgreSQL recently and which as Josh Puts it “This publication shows that …

Read More
 
What exactly is read_rnd_buffer_size

Looking for documentation for read_rnd_buffer_size you would find descriptions such as “The read_rnd_buffer_size is used after a sort, when reading rows in sorted order. If you use many queries with ORDER BY, upping this can …

Read More
 
Sphinx: Going Beyond full text search

I’ve already wrote a few times about various projects using Sphinx with MySQL for scalable Full Text Search applications. For example on BoardReader we’re using this combination to build search against over 1 billion of …

Read More
 
Microslow patch for 5.1.20

Microslow patch has been there for some time, but only for earlier MySQL editions such as 4.1 and 5.0. Now it’s also available for the latest 5.1. Because MySQL went through a lot of internal …

Read More
 
How Innodb flushes data to the disk ?

In my previous post I was a bit wrong giving Innodb some properties it does not have. In fact Innodb does not currently sort pages in their position order flushing them to disk. Pages to …

Read More
 
Innodb Recovery – Is large buffer pool always better ?

How does Buffer Pool size affects Innodb Performance ? I always expected the effect to be positive, Innodb with large buffer pool to performing better. Including Recovery of course. I even blogged about it. It …

Read More
 
Silicon Valley Onsite consulting anyone ?

Last time I was in Silicon Valley in April after MySQL Users Conference, this time I’m planning to spend July 30 – August 2nd in Silicon Valley after OSCON visiting friends and customers. If you’re …

Read More
 

Percona’s widely read Percona Data Performance blog highlights our expertise in enterprise-class software, support, consulting and managed services solutions for both MySQL® and MongoDB® across traditional and cloud-based platforms. The decades of experience represented by our consultants is found daily in numerous and relevant blog posts.

Besides specific database help, the blog also provides notices on upcoming events and webinars.

Want to get weekly updates listing the latest blog posts? Subscribe to our blog now! Submit your email address below.

No, thank you. Please do not ask me again.