mk-query-digest, query comments and the query cache
I very much like the fact that MySQL allows you to embed comments into SQL statements. These comments are extremely convenient, because they are written into MySQL log files as part of the query. This...
View ArticleMySQL caching methods and tips
“The least expensive query is the query you never run.”Data access is expensive for your application. It often requires CPU, network and disk access, all of which can take a lot of time. Using less...
View ArticleImplications of Metadata Locking Changes in MySQL 5.5
While most of the talk recently has mostly been around the new changes in MySQL 5.6 (and that is understandable), I have had lately some very interesting cases to deal with, with respect to the...
View ArticleAdvanced MySQL Query Tuning: Webinar followup Q&A
Thanks to all who attended my “MySQL Query Tuning” webinar on July 24. If you missed it, you can you can download the slides and also watch the recorded video. Thank you for the excellent questions...
View ArticleClik here to view.
Measure the impact of MySQL configuration changes with Percona Cloud Tools
When you make a change to your MySQL configuration in production it would be great to know the impact (a “before and after” type of picture). Some changes are obvious. For many variables proper values...
View Articlemk-query-digest, query comments and the query cache
I very much like the fact that MySQL allows you to embed comments into SQL statements. These comments are extremely convenient, because they are written into MySQL log files as part of the query. This...
View ArticleMySQL caching methods and tips
“The least expensive query is the query you never run.”Data access is expensive for your application. It often requires CPU, network and disk access, all of which can take a lot of time. Using less...
View ArticleImplications of Metadata Locking Changes in MySQL 5.5
While most of the talk recently has mostly been around the new changes in MySQL 5.6 (and that is understandable), I have had lately some very interesting cases to deal with, with respect to the...
View ArticleAdvanced MySQL Query Tuning: Webinar followup Q&A
Thanks to all who attended my “MySQL Query Tuning” webinar on July 24. If you missed it, you can you can download the slides and also watch the recorded video. Thank you for the excellent questions...
View ArticleClik here to view.
Measure the impact of MySQL configuration changes with Percona Cloud Tools
When you make a change to your MySQL configuration in production it would be great to know the impact (a “before and after” type of picture). Some changes are obvious. For many variables proper values...
View Articlemk-query-digest, query comments and the query cache
I very much like the fact that MySQL allows you to embed comments into SQL statements. These comments are extremely convenient, because they are written into MySQL log files as part of the query. This...
View ArticleMySQL caching methods and tips
“The least expensive query is the query you never run.”Data access is expensive for your application. It often requires CPU, network and disk access, all of which can take a lot of time. Using less...
View ArticleImplications of Metadata Locking Changes in MySQL 5.5
While most of the talk recently has mostly been around the new changes in MySQL 5.6 (and that is understandable), I have had lately some very interesting cases to deal with, with respect to the...
View ArticleAdvanced MySQL Query Tuning: Webinar followup Q&A
Thanks to all who attended my “MySQL Query Tuning” webinar on July 24. If you missed it, you can you can download the slides and also watch the recorded video. Thank you for the excellent questions...
View ArticleClik here to view.
Measure the impact of MySQL configuration changes with Percona Cloud Tools
When you make a change to your MySQL configuration in production it would be great to know the impact (a “before and after” type of picture). Some changes are obvious. For many variables proper values...
View ArticleClik here to view.
Is Your Query Cache Really Disabled?
This blog post was motivated by an internal discussion about how to fully disable query cache in MySQL. According to the manual, we should be able to disable “Query Cache” on the fly by changing...
View ArticleClik here to view.
ProxySQL Query Cache: What It Is, How It Works
In this blog post, I’ll present the ProxySQL query cache functionality. This is a query caching mechanism on top of ProxySQL. As there are already many how-tos regarding the ProxySQL prerequisites and...
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