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The audit log records authentication, trace-query, and configuration activity. Administrators read it through GET /audit or the Audit UI. Audit writes are best-effort: a logging failure is reported in server logs but does not fail the original request.

Endpoint

Requires the admin role. Authenticate with a session cookie or Authorization: Bearer lsk_....

Query parameters

integer
Maximum entries to return. Defaults to 100, capped at 1000.

Response

array
Audit rows in reverse chronological order. Each entry records the caller, the action, and an action-specific detail object.

What is recorded

  • Authentication: successful sign-in, sign-out, and password changes.
  • Queries: caller identity, query type, filter, and timestamp.
  • Configuration: schema, optimization, role, user, attribute, and key changes.

Retention

Retention is controlled by LIGHTSHIP_AUDIT_RETENTION_DAYS (default 90). LightShip removes older rows at startup and every six hours while it is running.

Example

The audit log lives in Postgres alongside the access model, not in ClickHouse. Backing up Postgres backs up the audit trail.