The presentation provides you with a brief ovreview of all the essential Command-line tools used for MySQL. Percona provides an in-depth review of your database and recommends appropriate changes by performing a complete MySQL health check in which we identify inefficiencies, find problems before they occur, and ensure that your MySQL database is in the best condition.

1. Survey of Percona Toolkit - Command-line
Tools for MySQL
Daniel Nichter - June 17, 2013

2. Overview
• What is Percona Toolkit?
• Survey of 9 tools
• Summary
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3. Overview
• What is Percona Toolkit?
• Survey of 9 tools
• Summary
Company Confidential December 2010
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4. 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
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5. Overview
• What is Percona Toolkit?
• Survey of 9 tools
• Summary
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6. 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
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7. pt-duplicate-key-checker (2)
• “Find duplicate indexes and foreign keys on MySQL
tables”
– Remove useless indexes, safely
• Benefits:
– Simpler tables
– Faster INSERTs
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8. pt-mysql-summary (3)
• “Summarize MySQL information nicely”
– MySQL tricorder
• Benefits:
– Easily learn about a MySQL server
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9. I detect high levels
of awesome.

10. pt-mysql-summary (3)
• “Summarize MySQL information nicely”
– MySQL tricorder
• Benefits:
– Easily learn about a MySQL server
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11. pt-summary (4)
• “Summarize system information nicely”
– System tricorder
• Benefits:
– Easily learn about a system
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12. pt-online-schema-change (5)
• “ALTER tables without locking them”
– Hot online ALTER TABLE
• Benefits:
– Zero downtime
– Low impact
– Tries and retries
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13. 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
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14. 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
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15. A warrior always verifies
replication integrity

16. 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
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17. pt-table-sync (9)
• “Synchronize MySQL table data efficiently”
– Fix slaves with incorrect data
• Benefits:
– Easily fix problems found by pt-table-checksum
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18. Overview
• What is Percona Toolkit?
• Survey of 9 tools
• Summary
Company Confidential December 2010
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19. 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
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20. Thank You
percona.com/software/percona-toolkit
daniel@percona.com
launchpad.net/percona-toolkit
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