Daniel Nichter

Platform Engineer, Square

Daniel has been writing MySQL tools and automation since 2004. In the early years, he created HackMySQL.com where he published some of the first open-source MySQL tools. He also blogged and wrote technical white papers for several years. From 2008 to 2016 he worked at Percona on the most widely-used open-source MySQL toolkit: Percona Toolkit. He also developed other products like the first versions of Percona Monitoring and Management (PMM). At the 2010 MySQL Conference & Expo, he was named the Community Contributor of the Year. Today, he works at Square as a DBA and Platform Engineer developing tooling and automation to manage thousands of MySQL instances.

Submitted Sessions

pt-table-checksum is a free tool which safely and efficiently verifies that data on MySQL replicas is identical to the master. Having inconsistent data on MySQL replicas is a well-known and rather common problem, yet many people who depend on MySQL replication never check for it. Moreover, inconsistent data can be an expensive problem, but the solution is free: pt-table-checksum.

If you... [read more]

Percona Toolkit is a collection of more then 30 command-line tools for MySQL that automate a variety of MySQL and system tasks. With so many choices, it can be difficult knowing where to start: is pt-archiver safe? what is the relationship between pt-table-checksum and pt-table-sync? how does pt-online-schema-change work? etc.

An open-format BoF to discuss anything related to Percona Toolkit.

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