Survey of Percona Toolkit - Command-line Tools for MySQL

Daniel Nichter - June 17, 2013

Overview

• What is Percona Toolkit?• Survey of 9 tools• Summary

Company Confidential December 2010

-2-

Overview

• What is Percona Toolkit?• Survey of 9 tools• Summary

Company Confidential December 2010

-3-

What is Percona Toolkit?

• Collection of command-line tools for MySQL, Percona Server, and MariaDB– For a wide range of MySQL DBA tasks

• Professionally developed, supported, and maintained by Percona

• 5 years mature, thousands of tests, 20 testing environments, 2 full-time developers

• Free, open-source percona.com/software/percona-toolkit

Company Confidential December 2010

-4-

Overview

• What is Percona Toolkit?• Survey of 9 tools• Summary

Company Confidential December 2010

-5-

pt-archiver (1)

• “Archive rows from a MySQL table into another table or a file”– Remove useless data, safely and slowly

• Benefits:– Faster queries

– Easier backups

Company Confidential December 2010

-6-

pt-duplicate-key-checker (2)

• “Find duplicate indexes and foreign keys on MySQL tables”– Remove useless indexes, safely

• Benefits:– Simpler tables

– Faster INSERTs

Company Confidential December 2010

-7-

pt-mysql-summary (3)

• “Summarize MySQL information nicely”– MySQL tricorder

• Benefits:– Easily learn about a MySQL server

Company Confidential December 2010

-8-

I detect high levels of awesome.

pt-mysql-summary (3)

• “Summarize MySQL information nicely”– MySQL tricorder

• Benefits:– Easily learn about a MySQL server

Company Confidential December 2010

-10-

pt-summary (4)

• “Summarize system information nicely”– System tricorder

• Benefits:– Easily learn about a system

Company Confidential December 2010

-11-

pt-online-schema-change (5)

• “ALTER tables without locking them”– Hot online ALTER TABLE

• Benefits:– Zero downtime

– Low impact

– Tries and retries

Company Confidential December 2010

-12-

pt-query-digest (6)

• “Analyze MySQL queries from logs, processlist, and tcpdump”– Find slow queries

• Benefits:– #1 performance optimization task: find and fix slow

queries

– Track and review queries

Company Confidential December 2010

-13-

pt-stalk (7)

• “Collect forensic data about MySQL when problems occur”– Postmortem analysis of MySQL problem

• Benefits:– Never sleeps, so you can

– Collects a lot of vital data

Company Confidential December 2010

-14-

A warrior always verifies replication integrity

pt-table-checksum (8)

• “Verify MySQL replication integrity”– Find slaves with incorrect data

• Benefits:– Important knowledge for very little effort

– Knowing a problem exists is the first step towards fixing it

Company Confidential December 2010

-16-

pt-table-sync (9)

• “Synchronize MySQL table data efficiently”– Fix slaves with incorrect data

• Benefits: – Easily fix problems found by pt-table-checksum

Company Confidential December 2010

-17-

Overview

• What is Percona Toolkit?• Survey of 9 tools• Summary

Company Confidential December 2010

-18-

Summary

1. pt-archiver: Remove useless data

2. pt-duplicate-key-checkers: Remove useless indexes

3. pt-mysql-summary: Learn about a MySQL server

4. pt-summary: Learn about a system

5. pt-online-schema-change: Hot online ALTER TABLE

6. pt-query-digest: Find slow queries

7. pt-stalk: Collect vital data for postmortem analysis

8. pt-table-checksum: Find slaves with incorrect data

9. pt-table-sync: Fix slaves with incorrect data

Company Confidential December 2010

-19-

Thank You

percona.com/software/percona-toolkit

daniel@percona.com

launchpad.net/percona-toolkit

Company Confidential December 2010

-20-