In 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:
192.168.1.122 in my case)
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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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:Usersjazcy>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?
Peter,
I did not try bash in Windows, but I will try to see if we can make it running
Apparently the current bash for Windows does not support prctl system call, but supposedly it will be fixed in Windows 10 Creators Edition
https://msdn.microsoft.com/en-us/commandline/wsl/release_notes
So hopefully it will work better then.
Peter,
I’ve just tested in Windows 10 Creators Edition and the problem is resolved. Windows added support for prctl system call.
correction. no diference if I install prctl
UPDATE for using percona-xtrabackup image for 2.4.11 version.
The following parameter should be added to the command line:
--innodb-undo-directory=/var/lib/mysqlso the full command looks like:
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 --innodb-undo-directory=/var/lib/mysqlIs incremental backup supported?
PS C:UsersDell> docker run –rm -it -v //C//DATA:/var/lib/mysql -v //C/mysqlbackup:/xtrabackup_backupfiles perconalab/percona-xtrabackup –backup –host=localhost –user=xtrabackup –password=xtrapassword
Unable to find image ‘perconalab/percona-xtrabackup:latest’ locally
C:Program FilesDockerDockerResourcesbindocker.exe: Error response from daemon: Get https://registry-1.docker.io/v2/perconalab/percona-xtrabackup/manifests/latest: unauthorized: incorrect username or password.
See ‘C:Program FilesDockerDockerResourcesbindocker.exe run –help’.
can you help me please