description Percona XtraBackup Overview
help Percona XtraBackup FAQ
Is Percona XtraBackup free to use?
Yes, Percona XtraBackup is free and open-source software distributed under the GPLv2 license. Percona offers it to the community for free alongside commercial support subscriptions for enterprises that require dedicated technical assistance.
How does Percona XtraBackup perform non-blocking database backups?
XtraBackup creates physical backups by directly copying the database data files while constantly monitoring the database's redo log. This allows it to capture concurrent transactions without locking the tables, ensuring you do not experience any database downtime.
Can Percona XtraBackup backup PostgreSQL databases?
Yes, Percona expanded the tool's capabilities, and it fully supports backing up PostgreSQL databases. It provides features like point-in-time recovery and parallel compression specifically tailored for large PostgreSQL deployments.
How does Percona XtraBackup compare to mysqldump?
While `mysqldump` creates a logical backup by dumping SQL statements, XtraBackup physically copies the binary data files. This makes XtraBackup significantly faster for large databases and allows for rapid restoration without re-executing queries.
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