Readiness probe (ADR-016): `200` only when this core holds HA leadership — i.e. it is running the coordinator + ingest and can serve live status. A standby returns `503` so a load balancer / orchestrator routes traffic only to the active core. With HA off this core is always the leader, so it always returns `200`. No auth, no store access (mirrors `/healthz`).

GET

/readyz

const url = 'https://example.com/readyz';
const options = {method: 'GET'};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}

curl --request GET \
  --url https://example.com/readyz

Authorizations

None

Responses

200

This core holds HA leadership and can serve live status

503

This core is a standby — route traffic elsewhere