Altinity / Altinity/clickhouse-backup

Idea - shared backup storage + background merges

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#1,308 0 comments 0 reactions 1 assignee View on GitHub

@Slach is already working on this.

Since Dec 18, 2025.

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Description

Think
Shared backup storage
/backup_data/{part_checksum}.tar
/backup_parts/backup_name.json - store part_checksum->part_name
/backup/backup_name/metadata.json
/backup/backup_name/metadata/db/table.json

background cleanup

  • read /backup_parts/*.json
  • list /backup_data/
  • compare lists and delete /backup_data/ for checksums which not exists in /backup_parts/*.json

actually we need file checksum instead of part checksum

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