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kube-arangodb/docs/design/health.md

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layout title parent
page Health checks Design overview

Health checks

Liveness Probe

Liveness checks are done by Kubernetes to detect Pods that are still running, but not responsive.

For agents, & dbservers a liveness probe is added for /_api/version.

For syncmasters a liveness probe is added for /_api/version with a token in an Authorization header. If a monitoring token is specified, this token is used, otherwise the syncmaster JWT token is used.

For syncworkers a liveness probe is added for /_api/version with a monitoring token in an Authorization header. If no monitoring token is specified, there is liveness probe added for syncworkers.

Readiness Probe

Readiness probes are done by Kubernetes to exclude Pods from Services until they are fully ready to handle requests.

For coordinators a readiness probe is added for /_api/version.