How Uber Protects Against Retry Storms

Automated excerpt

Consider the example in Figure 14, where Node D returns an internal error to Node C. A set of retries also happens between Node B and C, as Node C must claim the error it’s returning. However, when the retries fail and Node B returns an error to Node A, it also returns the unclaimed error header, which should prevent Node A from retrying the request to Node B.

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