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mt-broker-filter logs "http: superfluous response.WriteHeader call from go.opencensus.io/plugin/ochttp.(*trackingResponseWriter).WriteHeader (server.go:221)" on event replies #4464

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maschmid opened this issue Nov 5, 2020 · 1 comment · Fixed by #4466
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@maschmid
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maschmid commented Nov 5, 2020

Describe the bug
Having a Broker and a Trigger subscribing a ksvc that returns events as a reply, the following error is logged in mt-broker-filter pod for each event:

2020/11/04 10:23:56 http: superfluous response.WriteHeader call from go.opencensus.io/plugin/ochttp.(*trackingResponseWriter).WriteHeader (server.go:221)

Expected behavior
mt-broker-filter should use HTTP connections safely, and not write headers on closed connections

To Reproduce
See the reproducer:

https://github.com/maschmid/broker-filter-superfluous-error

(deploy following instructions in README, invoke the "sender" ksvc via curl, and notice the errors in the mt-broker-filter logs)

Knative release version
0.17.2

Additional context

@maschmid maschmid added the kind/bug Categorizes issue or PR as related to a bug. label Nov 5, 2020
@slinkydeveloper slinkydeveloper self-assigned this Nov 5, 2020
@slinkydeveloper
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/assign

slinkydeveloper added a commit to slinkydeveloper/eventing that referenced this issue Nov 5, 2020
Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>
knative-prow-robot pushed a commit that referenced this issue Nov 5, 2020
…dler (#4466)

* Fix #4464

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Docs

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Moar tests

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Linting

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit with metrics

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>
slinkydeveloper added a commit to slinkydeveloper/eventing that referenced this issue Nov 5, 2020
…dler (knative#4466)

* Fix knative#4464

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Docs

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Moar tests

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Linting

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit with metrics

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

(cherry picked from commit a6fc540)
Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>
slinkydeveloper added a commit to slinkydeveloper/eventing that referenced this issue Nov 5, 2020
…dler (knative#4466)

* Fix knative#4464

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Docs

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Moar tests

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Linting

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit with metrics

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

(cherry picked from commit a6fc540)
Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>
slinkydeveloper added a commit to slinkydeveloper/eventing that referenced this issue Nov 5, 2020
…dler (knative#4466)

* Fix knative#4464

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Docs

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Moar tests

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Linting

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit with metrics

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

(cherry picked from commit a6fc540)
Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>
matzew pushed a commit to matzew/eventing that referenced this issue Nov 5, 2020
…dler (knative#4466)

* Fix knative#4464

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Docs

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Moar tests

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Linting

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit with metrics

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

(cherry picked from commit a6fc540)
Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>
knative-prow-robot pushed a commit that referenced this issue Nov 5, 2020
* Remove double invocations to responseWriter.WriteHeader in filter handler (#4466)

* Fix #4464

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Docs

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Moar tests

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Linting

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit with metrics

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

(cherry picked from commit a6fc540)
Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>
knative-prow-robot pushed a commit that referenced this issue Nov 5, 2020
* Remove double invocations to responseWriter.WriteHeader in filter handler (#4466)

* Fix #4464

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Docs

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Moar tests

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Linting

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit with metrics

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

(cherry picked from commit a6fc540)
Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>
openshift-merge-robot pushed a commit to openshift/knative-eventing that referenced this issue Nov 5, 2020
* Remove double invocations to responseWriter.WriteHeader in filter handler (knative#4466)

* Fix knative#4464

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Docs

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Moar tests

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Linting

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit with metrics

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

(cherry picked from commit a6fc540)
Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

Co-authored-by: slinkydeveloper <francescoguard@gmail.com>
matzew pushed a commit to matzew/eventing that referenced this issue Nov 7, 2020
* Remove double invocations to responseWriter.WriteHeader in filter handler (knative#4466)

* Fix knative#4464

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Docs

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Moar tests

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Linting

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit with metrics

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

(cherry picked from commit a6fc540)
Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>
matzew pushed a commit to openshift/knative-eventing that referenced this issue Nov 7, 2020
* Remove double invocations to responseWriter.WriteHeader in filter handler (knative#4466)

* Fix knative#4464

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Docs

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Moar tests

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Linting

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit with metrics

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

(cherry picked from commit a6fc540)
Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>
openshift-merge-robot pushed a commit to openshift/knative-eventing that referenced this issue Nov 7, 2020
* Update pingsource-mt-adapter.yaml

* Like on 0.18.3, we skip the tracing tests

Signed-off-by: Matthias Wessendorf <mwessend@redhat.com>

* [release-0.18] Retry on network failures (knative#4454) (knative#4457)

* Retry on network failures (knative#4454)

Signed-off-by: Pierangelo Di Pilato <pierangelodipilato@gmail.com>

* nethttp -> http

Signed-off-by: Pierangelo Di Pilato <pierangelodipilato@gmail.com>

* Backport knative#4465 (knative#4468)

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* [0.18] Backport knative#4466 (knative#4471)

* Remove double invocations to responseWriter.WriteHeader in filter handler (knative#4466)

* Fix knative#4464

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Docs

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Moar tests

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Linting

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit with metrics

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

(cherry picked from commit a6fc540)
Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Nit

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* fixed wrong marshall in apiserversouece which will fix the missing ceOverrides extension  (knative#4477) (knative#4480)

* fixed wrong marshall

* fixed UT

* [0.18] Readyness probe in broker ingress (knative#4483)

* Fix knative#4473

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

* Massage the filter yaml

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

Co-authored-by: Matthias Wessendorf <mwessend@redhat.com>
Co-authored-by: Pierangelo Di Pilato <pierangelodipilato@gmail.com>
Co-authored-by: Francesco Guardiani <francescoguard@gmail.com>
Co-authored-by: capri-xiyue <52932582+capri-xiyue@users.noreply.github.com>
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