Tag: MySQL

Exposing Innodb Internals via System Variables: Part 3, I/O (Table data)

In part 2 of this series, Peter Sylvester, Lead Database Consultant at Pythian, continues looking at I/O, specifically the mechanics on how data gets written to table files.

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Exposing Innodb Internals via System Variables: Part 2, I/O (structure and logs)

In part 2 of this series, Peter Sylvester, Lead Database Consultant at Pythian, takes a closer look at I/O structure and log related variables.

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Exposing Innodb Internals via System Variables: Part 1, Memory

Introduction A couple of months ago I decided to give myself a refresher on the mechanics of InnoDB. Having a high level understanding of what’s going on under the hood can help provide the context needed in order to resolve…

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vm.swappiness and OOM in RHEL6

The behavior of vm.swappiness was always a bit confusing for novice linux users, as setting vm.swappiness to 0 would not completely disable swapping in the system during a memory crunch. vm.swappiness would only affect the agressiveness of swapping. Following upstream…

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How to Verify If a Slave Running in MySQL 5.7

Derek Downey, OSDB Practice Advocate at Pythian, explains how to verify that a Slave is running in MySQL 5.7.

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Creating An External Slave For A Live AWS Aurora Instance

Kevin Markwardt, MySQL Database Consultant at Pythian, explains how to set up an external slave for a live Amazon AWS Aurora instance.

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Log Buffer #482: A Carnival of the Vanities for DBAs

Fahd Mirza, Oracle Database Administrator at Pythian, highlights top blogs posts in the worlds of Oracle, SQL Server and MySQL.

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Eight Ways To Ensure Your Applications Are Enterprise-Ready

Elliot Zissman, Managing Director at Pythian, provides practical tips to ensure your organization’s applications are enterprise-ready.

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Quick Random Data In MySQL

Valerie Parham Thompson, Lead Database Consultant at Pythian, provides some sql statements to get some quick random data in MySQL.

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Can We Just Dump Data From A View Using Mysqldump?

Edwin Wang, MySQL DBA at Pythian, discusses dumping data from a view using Mysqldump.

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