Search Results for: what to tune

Is 80% of RAM how you should tune your innodb_buffer_pool_size?

It seems these days if anyone knows anything about tuning InnoDB, it’s that you MUST tune your innodb_buffer_pool_size to 80% of your physical memory. This is such prolific tuning advice, it seems engrained in many a DBA’s mind.  The MySQL manual to this day refers to this rule, so who can blame the DBA?  The […]

10 MySQL settings to tune after installation

When we are hired for a MySQL performance audit, we are expected to review the MySQL configuration and to suggest improvements. Many people are surprised because in most cases, we only suggest to change a few settings even though hundreds of options are available. The goal of this post is to give you a list […]

What’s required to tune MySQL?

I got a serendipitous call (thanks!) yesterday asking what would be needed to tune[1] a database for better performance. It is a question that I hear often, but I never thought about answering it in public. Here’s a consolidated version of what I explained during our conversation.

Percona welcomes Ewen Fortune and Piotr Biel

Although we haven’t announced any new members in a while, the Percona team has continued to grow steadily behind the scenes. Our hiring policy is to have a few months’ provisional period to ensure the…, of course. Ewen has been a consultant and contractor before joining Percona, and has many years of experience in Oracle, MySQL, Unix systems ….

Piotr Biel lives in Poland, quite close to our other Polish team member (Maciek Dobrzanski). In his past as a system architect he … can do!

Ewen and Piotr, a very warm welcome to the Percona team from all of us, and we are so glad to …

The Q&A: Creating best-in-class backup solutions for your MySQL environment

Thank you for attending my July 15 webinar, “Creating Best in Class Backup solutions for your MySQL environment.” Due to the amount of content we discussed and some minor technical difficulties faced near the end of webinar we have decided to cover the final two slides of the presentation along with the questions asked by […]

How to create a rock-solid MySQL database backup & recovery strategy

Have you ever wondered what could happen if your MySQL database goes down? Although it’s evident such a crash will cause downtime – and surely some business impact in terms of revenue – can you do something to reduce this impact? The simple answer is “yes” by doing regular backups (of course) but are you […]

MySQL indexing 101: a challenging single-table query

We discussed in an earlier post how to design indexes for many types of queries using a single table. Here is a real-world example of the challenges you will face when trying to optimize queries: two similar queries, but one is performing a full table scan while the other one is using the index we […]

Optimizer hints in MySQL 5.7.7 – The missed manual

In version MySQL 5.7.7 Oracle presented a new promising feature: optimizer hints. However it did not publish any documentation about the hints. The only note which I found in the user manual about the hints is: It is now possible to provide hints to the optimizer by including /*+ … */ comments following the SELECT, […]

pquery binaries with statically included client libs now available!

After we released pquery to the community, and as we started logging bug reports with pquery testcases, it quickly became clear that pquery binaries with statically compiled-in client libraries would be of great convenience, both for ourselves and for the community. (If you haven’t heard about pquery yet, read the pquery introduction blog post, come and […]