Late one evening, I was staring at one of our large MySQL installations and noticed the database was hovering around 7-10 run queue length (48 cores, ~500 gigs memory, fusionIO cards). I had been scratching my head on how to get more throughput from the database. This blog records the changes I made to tune […]
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The blog post How to Compile Percona Server for MySQL 5.7 in Raspberry Pi 3 by Walter Garcia, inspired me to create an updated install of Percona Server for the Raspberry Pi 3+. This how-to post covers installing from source and being able to use Percona Server for MySQL in any of your maker projects. […]
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Sometimes, the MySQL Optimizer chooses a wrong plan, and a query that should execute in less than 0.1 second ends-up running for 12 minutes ! This is not a new problem: bugs about this can be traced back to 2014, and a blog post on this subject was published in 2015. But even if this […]
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Starting at version MySQL5.6+ by default innodb_file_per_table is enabled and all data is stored in separate tablespaces. It provides some advantages. I will highlight some of them: You can reclaim disk space when truncating or dropping a table stored in a file-per-table tablespace. Truncating or dropping tables stored in the shared system tablespace creates free space internally […]
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During my presentation at Percona Live 2019, I’ll be talking about how Riot Games, the company behind League of Legends, migrated hundreds of millions of player accounts to unlock opportunities for us to delight players. This meant moving ten geographically distributed databases into a single global database replicated into four AWS regions. I’ll talk about […]
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During our presentation at
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