MyDUMPER helps in faster logical backup with many advanced features for industry needs.

1. Faster Logical Backup and Restores Using
mydumper
By
MySQL Consulting
Team

2. About MyDBOPS
• MySQL Consulting.
• MySQL Support.
• Remote DBA Service.
• Expert MySQL Solutions
• MariaDB, Percona, Galera, TokuDB are
supported too.

3. Agenda
• Logical Backups
• Backup Tools available
• Drawbacks
• Mydumper
• Myloader

4. Logical backups
• Plain text files - SQL Statements
• Can be remote
• Can be restored on different versions
• Sometimes is the only option
• Partial backup and restores
• Feed ETL processes

5. Backup Tools
mysqldump
• Native MySQL Client Program
• Can be piped to mysql client
• One Big Output File
• Lack of features for modern day problems

6. Drawbacks
• Single Threaded
• Lack of native compression
• Not possible to chunk the output file
• Consistent Online backup

7. mydumper
Maintained by Percona Currently
Launchpad Project
https://launchpad.net/mydumper
Release Notes
http://tinyurl.com/mydumper-091

8. mydumper - features
• Faster as is multithread
• Different files per table
• One row per line
• Can able to chunk based on rows, size
• Support to MariDB multi source replication
• TokuDB transactional support

9. mydumper - important options
• --threads
• --outputdir
• --rows, --chunk-filesize
• --compress
• --less-locking
• --kill-long-queries

10. mydumper - selective backups
• -B, --database
• -T, --tables-list
• -B db1
• -B db1 -T t1,t2
• -T db1.t1,db2.t1
• --regex=‘^((db1.|db2.))’

11. mydumper - improving times
--rows
• Chunk tables by rows
• Only works with INT fields indexes
--file-size-chunks
• Chunk tables by data size
• 1 dump thread but different files allowing parallel
restore
• works with any table

12. mydumper - improving times

13. mydumper - improving times

14. Myloader
• Helps in restoring the backup for mydumper.
Restore
myloader -h x.x.x.x -d /backup/dir -o

15. Examples
• Full backup
mydumper -h x.x.x.x -–less-locking –-compress
-o /backup/dir
• Restore
myloader -h x.x.x.x -d /backup/dir -o

16. Examples
• Partial restore (version >= 0.9)
myloader -h x.x.x.x -d /backup/dir/restore/ -o
-B db
• Partial restore diff DB name (version >= 0.9)
myloader -h x.x.x.x -d /backup/dir/restore/ -o
-B db_new -s db

17. DEMO

18. How MyDBOPS can Help You ?
• MySQL Consulting
• MySQL Support
• Remote DBA services
• 24*7 MySQL Monitoring
Contact : mysqlsupport@mydbops.com

19. Thank You