{
  "slug": "logical-journaling",
  "term": "Logical journaling",
  "aliases": [],
  "definition": "Logical journaling records recoverable changes to logical objects or operations rather than simply reproducing their on-disk representation.",
  "note": "Linux's XFS design uses logical records for in-core inode and quota changes alongside physical buffer logging and intents; the categories can coexist. [xfs] A compact record does not by itself establish lower device traffic or correct interrupted recovery. [hesela]",
  "status": "shipping",
  "advantages": [],
  "limitations": [],
  "related": [
    "physical-journaling",
    "ext4-fast-commit",
    "journal-checkpoint",
    "write-ahead-log"
  ],
  "supersedes": [],
  "supersededBy": [],
  "firstSeen": null,
  "lastSeen": null,
  "citations": [
    {
      "id": "xfs",
      "title": "Linux v6.12: XFS Logging Design, introduction",
      "url": "https://github.com/torvalds/linux/blob/v6.12/Documentation/filesystems/xfs/xfs-delayed-logging-design.rst",
      "accessed": "2026-10-15"
    },
    {
      "id": "hesela",
      "title": "Hesela: journal representations and FastCommit cost audit",
      "url": "https://hesela.com/analyses/ext4-journal-replay-revocation/#journal-cost",
      "accessed": "2026-10-15"
    }
  ],
  "updated": "2026-10-15"
}