+++
title = "HTTP 503: Service Unavailable"
weight = 110
updated = 2023-06-13
aliases = ["/docs/http-503-service-unavailable.html"]

[extra]
nav_title = "HTTP 503: Service Unavailable"
weight = 140
+++

An HTTP 503: Service Unavailable error indicates a problem with a server somewhere in the network. It is most likely related to a node restart affecting your primary shard(s) before a replica can be promoted.

The easiest solution is to simply catch and retry HTTP 503's. If you've seen this several times in a short period of time, please [send us an email](mailto:support@bonsai.io) and we will investigate.