How does percona cluster work?

Percona XtraDB Cluster replicates actions executed on one node to all other nodes in the cluster and make it fast enough to appear as it if is synchronous (aka virtually synchronous). Let’s understand all the things involved in the process (without losing data integrity).

What is percona cluster?

Percona XtraDB Cluster is a fully open-source high-availability solution for MySQL. It integrates Percona Server for MySQL and Percona XtraBackup with the Galera library to enable synchronous multi-source replication. A cluster consists of nodes, where each node contains the same set of data synchronized accross nodes.

Is percona XtraDB cluster free?

Percona XtraDB Cluster is a free, open source solution. Key Percona XtraDB Cluster features include synchronous replication, automatic node provisioning, and support for multi-master replication and parallel applying events (known as “parallel replication”).

How do I use Percona Server?

Installation

  1. Installing Percona Server for MySQL 8.0.28-19. Installing Percona Server for MySQL from Repositories. Installing Percona Server for MySQL from a Binary Tarball. Installing Percona Server for MySQL from a Source Tarball.
  2. Post-Installation. Initializing the Data Directory. Secure the Installation. Testing the Server.

What is percona XtraBackup?

Percona XtraBackup is an open-source hot backup utility for MySQL – based servers that doesn’t lock your database during the backup. It can back up data from InnoDB, XtraDB, and MyISAM tables on MySQL 5.1 [1], 5.5 and 5.6 servers, as well as Percona Server with XtraDB.

What is MariaDB Galera cluster?

MariaDB Galera Cluster is a virtually synchronous multi-primary cluster for MariaDB. It is available on Linux only, and only supports the InnoDB storage engine (although there is experimental support for MyISAM and, from MariaDB 10.6, Aria.

What is Galera replication?

Galera replication is a highly transparent, scalable, and virtually synchronous replication solution for database clustering to achieve high availability and improved performance. Galera-based clusters are: Highly available.

How do I start a percona server?

Installing Percona Server for MySQL from Percona apt repository

  1. Install GnuPG , the GNU Privacy Guard: $ sudo apt install gnupg2 curl.
  2. Install the downloaded package with dpkg.
  3. Once you install this package the Percona repositories should be added.
  4. Enable the repository:
  5. After that you can install the server package:

How do you start percona?

Quick Start Guide for Percona XtraDB Cluster

  1. Install Percona XtraDB Cluster on all nodes and set up root access for them.
  2. Configure all nodes with relevant settings required for write-set replication.
  3. Bootstrap the first node to initialize the cluster.
  4. Add other nodes to the cluster.
  5. Verify replication.

How do I use percona XtraBackup?

Back Up MySQL with Percona Xtrabackup

  1. Prerequisites. For this tutorial, you will need the following items:
  2. Install MariaDB.
  3. Install Percona XtraBackup.
  4. Configure MariaDB.
  5. Perform Full Backup with Innobackupex.
  6. Incremental Backups with Innobackupex.
  7. Restore Full Backup with Innobackupex.