Service unavailable

An HTTP error that errdown classifies as service_unavailable.

error_name

service_unavailable

error_category

upstream_unavailable

retryable

true

owner_action_required

false

HTTP status

503

What you should do

Wait 5 seconds, then retry with exponential backoff. Stop after a few attempts and report the error if it persists.

Names may carry a source prefix (for example nginx_service_unavailable); they mean the same thing, produced by that server.