Enable compression for backups

You can enable ZSTD compression for backups if you run Percona XtraDB Cluster 8.0.34 and higher.

To enable compression, use the pxc.configuration key in the deploy/cr.yaml configuration file. Specify the following options from the my.cnf configuration file in the [sst] and [xtrabackup] sections:

pxc:
  image: percona/percona-xtradb-cluster:8.4.0-5.1
  configuration: |
    ...
    [sst]
    xbstream-opts=--decompress
    [xtrabackup]
    compress=zstd
    ...

When enabled, compression will be used for both backups and SST .

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Last update: January 19, 2026
Created: July 4, 2023