minecraft-server/live-server/plugins/GrimAC/database.yml

# ===========================================================================
#  Grim datastore
#
#  Routes the DataStore categories (violation / session / player-identity /
#  setting / blob) to specific backend instances. Each backend listed in
#  `routing:` has its own settings file under `databases/<backend-id>.yml`.
#
#  On first boot, if the legacy store (violations.sqlite) is present, it
#  is migrated into the new store automatically. Set migration.skip to
#  true if you prefer to carry over manually later.
# ===========================================================================

# Every datastore key lives under this top-level wrapper so the keyspace is
# naturally namespaced — Configuralize merges every yml into one global
# keyspace at runtime, and a flat layout here would collide with identical
# top-level keys in config.yml / discord.yml (`enabled`, `history`, etc.).
database:

  # Master toggle. Set false to disable violation history + /grim history
  # entirely. Live AC checks keep running; flags just aren't persisted.
  enabled: true

  # Categories → backend ids. Each distinct id here must have a matching
  # `databases/<id>.yml` file (auto-created from bundled defaults on first
  # boot) and a registered BackendProvider at runtime. `none` disables
  # persistence for that category entirely. Mixed backends are fine — e.g.
  # violations in a networked SQL store and blobs in an object store.
  routing:
    violation: sqlite
    session: sqlite
    player-identity: sqlite
    setting: sqlite
    blob: none

  session:
    # Used at migration time only — the legacy V0 reader has no join/quit
    # signals, so SessionReconstructor groups violations into sessions when
    # consecutive flags fall within this gap. Live sessions are bounded by
    # the connection, not this value.
    gap-ms: 600000
    scope-per-server: true
    # How often a connected-player heartbeat upserts the session row so
    # last_activity_epoch_ms stays current. Bounds the apparent session
    # duration if the server crashes (graceful disconnects always set
    # closed_at). Cost: ~one row UPSERT per online player per interval.
    # 0 disables.
    heartbeat-interval-ms: 30000

  write-path:
    # queue-capacity must be a positive power of two (ring-buffer requirement).
    # Typical values: 4096, 8192, 16384, 32768, 65536.
    queue-capacity: 16384
    batch-size: 256
    flush-interval-ms: 1000
    warn-rate-ms: 10000
    shutdown-drain-timeout-ms: 5000
    # Ring-buffer wait strategy. BLOCKING is the safe default: a condition-variable
    # wait that minimises CPU use at the cost of a small amount of latency under
    # extreme burst. Pick YIELDING or BUSY_SPIN only when you have a free core
    # budget and have measured a win over BLOCKING.
    # Options: BLOCKING, TIMEOUT_BLOCKING, SLEEPING, YIELDING, BUSY_SPIN.
    wait-strategy: BLOCKING

  retention:
    session:
      enabled: true
      max-age-days: 90
    violation:
      enabled: true
      max-age-days: 365
    player-identity:
      enabled: false
    setting:
      enabled: false
    blob:
      enabled: true
      max-age-days: 30

  migration:
    skip: false
    max-duration-ms: 0        # 0 = no timeout

  name-resolution:
    # Order matters — first non-empty result wins.
    # local-cache reads the PlayerIdentity category.
    # offline-mode-uuid derives UUID.nameUUIDFromBytes (offline servers only).
    chain: [local-cache, offline-mode-uuid]

  history:
    entries-per-page: 15
    group-interval-ms: 30000

  # Display-only tag stamped on new session records. Shown in the session
  # header line of `/grim history`. Safe to change mid-operation.
  server-name: "Prison"

# Schema markers — see header comment in config.yml.
config-flavor: V2
config-version: 1