Hi Bruno,

Yes, you're right. Sorry for the typo.

Hi Ismael,

You're right. Jenkins does not support the flakyFailure element and
hence the information is not at all in the Jenkins report. I am still
experimenting with printing the flaky tests somewhere. I will update this
thread if I get something working. In the meantime, I wanted to gauge
whether there is support for it.

Cheers,
David

On Mon, Feb 12, 2024 at 3:59 PM Ismael Juma <[email protected]> wrote:

> Hi David,
>
> Your message didn't make this clear, but you are saying that Jenkins does
> _not_ support the flakyFailure element and hence this information will be
> completely missing from the Jenkins report. Have we considered including
> the flakyFailure information ourselves? I have seen that being done and it
> seems strictly better than totally ignoring it.
>
> Ismael
>
> On Mon, Feb 12, 2024 at 12:11 AM David Jacot <[email protected]>
> wrote:
>
> > Hi folks,
> >
> > I have been playing with `reports.junitXml.mergeReruns` setting in gradle
> > [1]. From the gradle doc:
> >
> > > When mergeReruns is enabled, if a test fails but is then retried and
> > succeeds, its failures will be recorded as <flakyFailure> instead of
> > <failure>, within one <testcase>. This is effectively the reporting
> > produced by the surefire plugin of Apache Maven™ when enabling reruns. If
> > your CI server understands this format, it will indicate that the test
> was
> > flaky. If it does not, it will indicate that the test succeeded as it
> will
> > ignore the <flakyFailure> information. If the test does not succeed (i.e.
> > it fails for every retry), it will be indicated as having failed whether
> > your tool understands this format or not.
> >
> > With this, we get really close to having green builds [2] all the time.
> > There are only a few tests which are too flaky. We should address or
> > disable those.
> >
> > I think that this would help us a lot because it would reduce the noise
> > that we get in pull requests. At the moment, there are just too many
> failed
> > tests reported so it is really hard to know whether a pull request is
> > actually fine or not.
> >
> > [1] applies it to both unit and integration tests. Following the
> discussion
> > in the `github build queue` thread, it may be better to only apply it to
> > the integration tests. Being stricter with unit tests would make sense.
> >
> > This does not mean that we should continue our effort to reduce the
> number
> > of flaky tests. For this, I propose to keep using Gradle Entreprise. It
> > provides a nice report for them that we can leverage.
> >
> > Thoughts?
> >
> > Best,
> > David
> >
> > [1] https://github.com/apache/kafka/pull/14862
> > [2]
> >
> >
> https://ci-builds.apache.org/blue/organizations/jenkins/Kafka%2Fkafka-pr/detail/PR-14862/19/tests
> >
>

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