feat(app/inbound): introduce request duration metrics#4432
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feat(app/inbound): introduce request duration metrics#4432
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this commit introduces a new middleware layer to the inbound proxy. this instruments inbound traffic with Prometheus telemetry that records request body latency, and emits a histogram of request body durations. as in #4420, the buckets are chosen to mimic the request and response buckets emitted by the outbound proxy, with their granularity flipped. in other words, the inbound proxy is more interested in fine-grained request body metrics than response body metrics, while the outbound proxy is more interested in fine-grained response body metrics than request body metrics. * #4420 Signed-off-by: katelyn martin <kate@buoyant.io>
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this commit introduces a new middleware layer to the inbound proxy.
this instruments inbound traffic with Prometheus telemetry that records
request body latency, and emits a histogram of request body durations.
as in #4420, the buckets are chosen to mimic the
request and response buckets emitted by the outbound proxy, with their
granularity flipped. in other words, the inbound proxy is more
interested in fine-grained request body metrics than response body
metrics, while the outbound proxy is more interested in fine-grained
response body metrics than request body metrics.
Signed-off-by: katelyn martin kate@buoyant.io