If you have a very large datadir in MariaDB and you want to transfer the data to another host (e.g. for replication) you may want to avoid storing it locally and copying it between the hosts.

UI/UX Design by

We make sure that your target audience has the best possible experience with your digital product. You get:

• Design tailored to your audience
• Proven processes customized to your needs
• An expert team of experienced designers

Read more Show archive.org snapshot

You can stream the backup directly via netcat.

Transferring the stream data

1. On the destination host

$ mkdir mariabackup
$ cd mariabackup
$ nc -l 9999 | cat - | mbstream -x

2. On the source host

$ mariabackup --backup --stream=xbstream | nc destination-host 9999

Restoring the backup

After the streaming of the backup is complete, on the destination host run:

1. # systemctl stop mariadb

2. # rm -r /var/lib/mysql/*

3. To setup replication afterwards, get the output of:

   # cat xtrabackup_binlog_info
   

4. Prepare and restore the backup:

   $ cd ..
   $ mariabackup --prepare --target-dir ./mariabackup
   $ mariabackup --move-back --target-dir ./mariabackup
   

5. # chown -R mysql:mysql /var/lib/mysql/

6. # systemctl start mariadb