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Multi Range Read (MRR) in MySQL 5.6 and MariaDB 5.5
This is the second blog post in the series of blog posts leading up to the talk comparing the optimizer enhancements in MySQL 5.6 and MariaDB 5.5. This blog post is aimed at the optimizer enhancement...
View ArticleSell-an-Elephant-to-your-Boss-HOWTO
Spoiler alert: If your boss does not need an elephant, he is definitely NOT going to buy one from you. If he will, he will regret it and eventually you will too.I must appologize to the reader who was...
View ArticleMinimizing Downtime from Lengthy AWS Outages
Well, it happened again… Another lengthy EBS outage in the US-East region impacted several sites across the net. While failures like this are rare, they can be quite costly and translate into...
View ArticleProfiling MySQL Memory Usage With Valgrind Massif
There are times where you need to know exactly how much memory the mysqld server (or any other program) is using, where (i.e. for what function) it was allocated, how it got there (a backtrace,...
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MySQL 5.6 vs MySQL 5.5 and the Star Schema Benchmark
MySQL 5.6 vs MySQL 5.5 & the Star Schema BenchmarkSo far most of the benchmarks posted about MySQL 5.6 use the sysbench OLTP workload. I wanted to test a set of queries which, unlike sysbench,...
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Using the new spatial functions in MySQL 5.6 for geo-enabled applications
Geo-enabled (or location enabled) applications are very common nowadays and many of them use MySQL. The common tasks for such applications are:Find all points of interests (i.e. coffee shops) around...
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Percona XtraDB Cluster 5.6 GA release now available
Percona is pleased to announce the first General Availability release of the leading open source High Availability solution for MySQL, Percona XtraDB Cluster 5.6 on January 30, 2014. Binaries are...
View ArticleUsing Apache Hadoop and Impala together with MySQL for data analysis
Apache Hadoop is commonly used for data analysis. It is fast for data loads and scalable. In a previous post I showed how to integrate MySQL with Hadoop. In this post I will show how to export a table...
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Location for InnoDB tablespace in MySQL 5.6.6
There is one new feature in MySQL 5.6 that didn’t get the attention it deserved (at least from me ) : “DATA DIRECTORY” for InnoDB tables.This is implemented since MySQL 5.6.6 and can be used only at...
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Galera replication – how to recover a PXC cluster
Galera replication for MySQL brings not only the new, great features to our ecosystem, but also introduces completely new maintenance techniques. Are you concerned about adding such new complexity to...
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