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Hint: throttling xtrabackup

 | May 20, 2009 |  Posted In: Percona Software

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Using xtrabackup for copying files can really saturate your disks, and that why we made special option

to limit rate of IO per second. But it really works when you do local copy.
What about stream backup ? Even you copy just to remote box with

, read may be so intensive so your mysqld feels impact, slave getting behind, etc…

For this there is a nice small utility – pv .

With pv you run:

and it will limit channel rate to 10 M per second.

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Vadim Tkachenko

Vadim Tkachenko co-founded Percona in 2006 and serves as its Chief Technology Officer. Vadim leads Percona Labs, which focuses on technology research and performance evaluations of Percona’s and third-party products. Percona Labs designs no-gimmick tests of hardware, filesystems, storage engines, and databases that surpass the standard performance and functionality scenario benchmarks. Vadim’s expertise in LAMP performance and multi-threaded programming help optimize MySQL and InnoDB internals to take full advantage of modern hardware. Oracle Corporation and its predecessors have incorporated Vadim’s source code patches into the mainstream MySQL and InnoDB products. He also co-authored the book High Performance MySQL: Optimization, Backups, and Replication 3rd Edition.

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