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Running Percona XtraBackup on Windows … in Docker

 | March 20, 2017 |  Posted In: MySQL, Percona XtraBackup

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Percona XtraBackupIn this blog, we’ll look at running Percona XtraBackup on Windows via a Docker container.

The question whether Percona XtraBackup is available for Windows comes up every so often. While we are not planning to provide regular releases for Windows, I decided to share a way to run Percona XtraBackup in a Docker container (especially since Docker support for Windows has become more and more stable).

For this exercise, I created a playground Docker image: perconalab/percona-xtrabackup.

First, we need to prepare a few things to make it work:

  1. Install Docker on Windows (the current version I am running is 17.03)
  2. Enable the sharing of disk C in Docker settings
  3. Find out the IP address MySQL is running on (192.168.1.122 in my case)
  4. Grant backup-required privileges for the xtrabackup user:

GRANT RELOAD,PROCESS,LOCK TABLES,REPLICATION CLIENT ON *.* TO 'xtrabackup'@'192.%' IDENTIFIED by 'xtrapassword'

Now, let’s assume our datadir is in C:/mysqldata, and we want to backup to C:/mysqlbackup. Needless to say, that XtraBackup image must run on the same server as MySQL’s datadir (since XtraBackup needs to access the data to copy it).

Now to take a backup we execute:

docker run --rm -it -v //C/mysqldata:/var/lib/mysql -v //C/mysqlbackup:/xtrabackup_backupfiles perconalab/percona-xtrabackup --backup --host=192.168.1.122 --user=xtrabackup --password=xtrapassword

We find our backup in C:/mysqlbackup when it is done.

Enjoy!

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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.

5 Comments

  • I was able to install XtraBackup on “bash in Windows” directly/natively from Ubuntus repository (“sudo apt-get install ..” or use “Synaptic” GUI softare management tool). But I haven’t tested if it works. Have you?

    If you don’t know “bash in Windows” you can start here:
    https://blog.webyog.com/how-to-add-a-gui-to-the-new-bash-console-in-windows-10/

  • It does not seem so:

    C:\Users\jazcy>bash
    peter@SH-WIN10:/mnt/c/Users/jazcy$ xtrabackup –user=root –password=secret -host=127.0.0.1 –port=3308 –backup –target-dir=\test
    prctl() failed with errno = 22
    peter@SH-WIN10:/mnt/c/Users/jazcy$

    No diference if I install rpctl. Maybe “bash in Windows” will not be allowed to get the information from the system it needs or rpctl is simply incompatible with Windows and not translated to Windows system calls on this environment . It would be nice to avoid Docker, so if there is a solution it would be nice

    Thoughts?

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