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Clarifies that retry middleware uses TCP, not HTTP status codes

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Gérald Croës 2025-03-13 09:44:04 +01:00 committed by GitHub
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docs/content/middlewares/http/retry.md
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@ -12,8 +12,11 @@ Retrying until it Succeeds
TODO: add schema
-->
The Retry middleware reissues requests a given number of times to a backend server if that server does not reply.
As soon as the server answers, the middleware stops retrying, regardless of the response status.
The Retry middleware reissues requests a given number of times when it cannot contact the backend service.
This applies at the transport level (TCP).
If the service does not respond to the initial connection attempt, the middleware retries.
However, once the service responds, regardless of the HTTP status code, the middleware considers it operational and stops retrying.
This means that the retry mechanism does not handle HTTP errors; it only retries when there is no response at the TCP level.
The Retry middleware has an optional configuration to enable an exponential backoff.
## Configuration Examples