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As database backups can grow substantially in size, compressing backups helps to preserve disk space. While the mariabackup utility offers no compression by itself, we can stream the backup into a compression tool to create an archive [1]. The xtrabackup_checkpoints file, which contains metadata on a backup, gets stored alongside the archive, allowing to create incremental backups from non-compressed backups and vice-versa [2]. One thing to note, is that compressed backups cannot be prepared in advance, this step must be manually carried out by the user. Backup compression is disabled by default and different compressors can be chosen (zstd, xz, ...), with gzip being the default. [1] https://mariadb.com/kb/en/using-encryption-and-compression-tools-with-mariabackup/ [2] https://mariadb.com/kb/en/incremental-backup-and-restore-with-mariabackup/#combining-with-stream-output Change-Id: I28c6a0e0b41d4d29c3e79e601de45ea373dee4fb Signed-off-by: Simon Hensel <simon.hensel@inovex.de> (cherry picked from commit 60009ed) (cherry picked from commit 9f78aa9)
Conditions in Ansible "when" clauses are combined with "and". But the cluster check should fail if only one of these conditions is true. Additionally the second condition on the node status check was inversed. It checked for a healthy node. Change-Id: Ib2cd632f437c4771452c22f77bedd3012f37b86b (cherry picked from commit da6abc6) (cherry picked from commit 39a5706)
gaudenz
approved these changes
Nov 4, 2024
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