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This release includes the results from continued profiling & performance analysis. In addition to modifying internals to prevent unwarranted memory growth, we've introduced new metrics to aid in debugging and diagnostics: a new `request_errors_total` metric exposes the number of requests that receive synthesized responses due to proxy errors; and a suite of `stack_*` metrics expose proxy internals that can help us identify unexpected behavior. --- * trace: update `tracing-subscriber` dependency to 0.2.1 (linkerd/linkerd2-proxy#426) * Reimplement the Lock middleware with tokio::sync (linkerd/linkerd2-proxy#427) * Add the request_errors_total metric (linkerd/linkerd2-proxy#417) * Expose the number of service instances in the proxy (linkerd/linkerd2-proxy#428) * concurrency-limit: Share a limit across Services (linkerd/linkerd2-proxy#429) * profiling: add benchmark and profiling scripts (linkerd/linkerd2-proxy#406) * http-box: Box HTTP payloads via middleware (linkerd/linkerd2-proxy#430) * lock: Generalize to protect a guarded value (linkerd/linkerd2-proxy#431)
kleimkuhler
approved these changes
Feb 19, 2020
alpeb
approved these changes
Feb 19, 2020
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This release includes the results from continued profiling & performance
analysis. In addition to modifying internals to prevent unwarranted
memory growth, we've introduced new metrics to aid in debugging and
diagnostics: a new
request_errors_totalmetric exposes the number ofrequests that receive synthesized responses due to proxy errors; and a
suite of
stack_*metrics expose proxy internals that can help usidentify unexpected behavior.
tracing-subscriberdependency to 0.2.1 (trace: updatetracing-subscriberdependency to 0.2.1 linkerd2-proxy#426)