I don't think that removing all maven descriptors was the expected
path, no ? Or even a good idea at this moment.

I understood that what we were going to do was to replace
incrementally the CI until we cover the whole maven functionality and
then remove it, from looking at the JIRA ticket
https://issues.apache.org/jira/browse/BEAM-3249 we are still far from
covering the complete maven functionality in particular for the
release part that could be the biggest pain point.


On Thu, Mar 22, 2018 at 9:30 AM, Romain Manni-Bucau
<rmannibu...@gmail.com> wrote:
> hey guys,
>
> 2.4 is out, do we plan to drop all maven descriptors tomorrow or on monday?
>
>
> Romain Manni-Bucau
> @rmannibucau |  Blog | Old Blog | Github | LinkedIn | Book
>
> 2018-03-09 21:42 GMT+01:00 Kenneth Knowles <k...@google.com>:
>>
>> On Fri, Mar 9, 2018 at 12:16 PM Lukasz Cwik <lc...@google.com> wrote:
>>>
>>> Based upon your description it seems as though you would rather have a
>>> way to run existing postcommits without it impacting dashboard/health
>>> stats/notifications/.... (We have just run the PostCommits on PRs for
>>> additional validation (like upgrading the Dataflow container image)).
>>
>>
>> Yes, that is exactly what I have described.
>>
>>> I don't think that keeping the current Java PreCommit as a proxy for the
>>> the Java PostCommit is the right way to go but I also don't have the time to
>>> implement what your actually asking for.
>>
>>
>> Mostly I thought this might be very easy based on the fact that they are
>> nearly identical. If not, oh well.
>>
>> Kenn
>>
>>
>>> It seems more likely that migrating the PostCommit to Gradle will be less
>>> work then adding the functionality but your argument where the PreCommit is
>>> a proxy for the Java PostCommit also applies to the ValidatesRunner
>>> PostCommits and so forth requiring even more migration to happen before you
>>> don't have to worry about maintaining Maven/breaking post commits.
>>>
>>> I'm fine with leaving both the Java/Gradle PreCommits running for now and
>>> hopefully as more of the PostCommits are migrated off we will be able to
>>> remove it.
>>>
>>> On Fri, Mar 9, 2018 at 11:39 AM, Kenneth Knowles <k...@google.com> wrote:
>>>>
>>>> Separate history (for easy dashboarding, health stats, etc) and
>>>> notification (email to dev@ for postcommits, nothing for precommits) for 
>>>> pre
>>>> & post commit targets.
>>>>
>>>> A post commit failure is always a problem to be triaged at high
>>>> priority, while a precommit failure is just a natural occurrence.
>>>>
>>>> On Fri, Mar 9, 2018 at 11:33 AM Lukasz Cwik <lc...@google.com> wrote:
>>>>>
>>>>> Ken, I'm probably not seeing something but how does using the PreCommit
>>>>> as a proxy improve upon just running the post commit via the phrase it
>>>>> already supports ('Run Java PostCommit')?
>>>>>
>>>>> On Fri, Mar 9, 2018 at 11:22 AM, Kenneth Knowles <k...@google.com>
>>>>> wrote:
>>>>>>
>>>>>> Indeed, we've already had the discussion a couple of times and I think
>>>>>> the criteria are clearly met. Incremental progress is a good thing and we
>>>>>> shouldn't block it.
>>>>>>
>>>>>> OTOH I see where Romain is coming from and I have a good example that
>>>>>> supports a slightly different action. Consider
>>>>>> https://github.com/apache/beam/pull/4740 which fixes some errors in how 
>>>>>> we
>>>>>> use dependency mechanisms.
>>>>>>
>>>>>> This PR is green except that I need to fix some Maven pom slightly
>>>>>> more. That is throwaway work. I would love to just not have to do it. But
>>>>>> removing the precommit does not actually make the PR OK to merge. It 
>>>>>> would
>>>>>> cause postcommits to fail.
>>>>>>
>>>>>> We can hope such situations are rare. I think I tend to be hit by this
>>>>>> more often than most, as I work with the project build health quite a 
>>>>>> bit.
>>>>>>
>>>>>> Here is a proposal to support these things: instead of deleting the
>>>>>> job in #4814, move it to not run automatically but only via a phrase. In
>>>>>> fact, you could migrate it to be the manually-invoked version of the
>>>>>> postcommit job as we've discussed a couple times. Then if someone is 
>>>>>> working
>>>>>> on the build in something like #4740 they can invoke it manually.
>>>>>>
>>>>>> Kenn
>>>>>>
>>>>>> On Fri, Mar 9, 2018 at 10:25 AM Lukasz Cwik <lc...@google.com> wrote:
>>>>>>>
>>>>>>> Based upon the criteria that was discussed on the mailing list[1], I
>>>>>>> would agree with Kenn about merging PR/4814 (drop Java Maven precommit).
>>>>>>>
>>>>>>> 1:
>>>>>>> https://lists.apache.org/thread.html/7eba5c77bc1a77b5046d915ab59f5f6fc41536c2c84863ad2efb5e99@%3Cdev.beam.apache.org%3E
>>>>>>>
>>>>>>> On Thu, Mar 8, 2018 at 9:10 PM, Romain Manni-Bucau
>>>>>>> <rmannibu...@gmail.com> wrote:
>>>>>>>>
>>>>>>>> Hi Kenneth,
>>>>>>>>
>>>>>>>> For now maven covers the full needs of beam. If we start to have
>>>>>>>> this kind of PR we become dependent of the 2 builds which is what this
>>>>>>>> thread is about avoiding so tempted to say it must be a PR drop 
>>>>>>>> completely
>>>>>>>> maven or nothing as mentionned before.
>>>>>>>>
>>>>>>>> Le 9 mars 2018 04:48, "Kenneth Knowles" <k...@google.com> a écrit :
>>>>>>>>>
>>>>>>>>> I would like to briefly re-focus this discussion and suggest that
>>>>>>>>> we merge https://github.com/apache/beam/pull/4814.
>>>>>>>>>
>>>>>>>>> The only material objection I've heard is that it means the
>>>>>>>>> precommit no longer tests exactly what is built for release. It is a 
>>>>>>>>> valid
>>>>>>>>> concern, but we have mvn postcommit so the coverage is not lost. The
>>>>>>>>> benefits of quicker reviews and less Jenkins congestion seem worth it 
>>>>>>>>> to me.
>>>>>>>>>
>>>>>>>>> Kenn
>>>>>>>>>
>>>>>>>>> On Thu, Mar 8, 2018 at 12:33 PM Romain Manni-Bucau
>>>>>>>>> <rmannibu...@gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>> @Luskasz: not sure Im the best to host it since I know more gradle
>>>>>>>>>> internals that user interface/ecosystem but happy to help. Will also 
>>>>>>>>>> require
>>>>>>>>>> a "sudo" merger for this day to merge fixes asap - guess we can 
>>>>>>>>>> bypass
>>>>>>>>>> reviews or have a fast cycle plan for this day to avoid it to be a 
>>>>>>>>>> week?
>>>>>>>>>>
>>>>>>>>>> Le 8 mars 2018 21:08, "Kenneth Knowles" <k...@google.com> a écrit :
>>>>>>>>>>
>>>>>>>>>> @Romain - Idea/IntelliJ is great with Gradle, way better than
>>>>>>>>>> Maven, and what I mean is that I have added enough hints that it 
>>>>>>>>>> works OOTB
>>>>>>>>>> already. The rest of my instructions are just how you should override
>>>>>>>>>> IntelliJ's defaults to have a proper dev env - mostly just about 
>>>>>>>>>> storing
>>>>>>>>>> files outside the git clone.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Hmm it is always super slow here and not as integrated as maven
>>>>>>>>>> which is smooth thanks to the combination of idea build and maven 
>>>>>>>>>> plugin
>>>>>>>>>> config read. Import is also faster cause it just reads meta and 
>>>>>>>>>> doesnt run
>>>>>>>>>> anything. Hope it is a "a few times" issues at the moment but not 
>>>>>>>>>> yet sure.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> @Łukasz - yea I just mean the ones that I find in my email and
>>>>>>>>>> browsing https://builds.apache.org/view/A-D/view/Beam/ which are the 
>>>>>>>>>> ones
>>>>>>>>>> you classify as "totally not working". I would love to disable these.
>>>>>>>>>>
>>>>>>>>>> On the subject of running things on a pending PR - we should not
>>>>>>>>>> run postcommit jobs on PRs. We should make separate (optional) 
>>>>>>>>>> precommit
>>>>>>>>>> jobs that run the same build commands. That will give a more clear 
>>>>>>>>>> history
>>>>>>>>>> and allow trivial configuration of which jobs deserve alert emails 
>>>>>>>>>> and which
>>>>>>>>>> are not a problem. This is easy but I've been waiting to do it after 
>>>>>>>>>> Gradle
>>>>>>>>>> migration.
>>>>>>>>>>
>>>>>>>>>> On Thu, Mar 8, 2018 at 11:37 AM Lukasz Cwik <lc...@google.com>
>>>>>>>>>> wrote:
>>>>>>>>>>>
>>>>>>>>>>> Romain, would you like to host/plan/run the Gradle fixit day?
>>>>>>>>>>>
>>>>>>>>>>> On Thu, Mar 8, 2018 at 11:24 AM, Chamikara Jayalath
>>>>>>>>>>> <chamik...@google.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> +1 for the general idea of fixit day/week for Gradle.
>>>>>>>>>>>>
>>>>>>>>>>>> Agree with what Łukasz said. Some of these performance tests are
>>>>>>>>>>>> new and are flaky due to other issues that were discovered during 
>>>>>>>>>>>> the
>>>>>>>>>>>> process of adding the test.
>>>>>>>>>>>>
>>>>>>>>>>>> I think the high level blocker is updating performance testing
>>>>>>>>>>>> framework to use Gradle. This will involve adding Gradle-based 
>>>>>>>>>>>> logic for
>>>>>>>>>>>> invoking PerfKitBenchmaker, for example [1], and updating 
>>>>>>>>>>>> PerfKitBenchmarker
>>>>>>>>>>>> to issue a Gradle command for running the benchmark [2]. First 
>>>>>>>>>>>> task will be
>>>>>>>>>>>> to find the work needed here and updating the relevant JIRA [3].
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks,
>>>>>>>>>>>> Cham
>>>>>>>>>>>>
>>>>>>>>>>>> [1]
>>>>>>>>>>>> https://github.com/apache/beam/blob/master/sdks/java/io/google-cloud-platform/pom.xml#L79
>>>>>>>>>>>> [2]
>>>>>>>>>>>> https://github.com/GoogleCloudPlatform/PerfKitBenchmarker/blob/master/perfkitbenchmarker/beam_benchmark_helper.py
>>>>>>>>>>>> [3] https://issues.apache.org/jira/browse/BEAM-3251
>>>>>>>>>>>>
>>>>>>>>>>>> On Thu, Mar 8, 2018 at 3:10 AM Łukasz Gajowy
>>>>>>>>>>>> <lukasz.gaj...@gmail.com> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>> 2018-03-07 22:29 GMT+01:00 Kenneth Knowles <k...@google.com>:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Based on https://builds.apache.org/view/A-D/view/Beam/ and our
>>>>>>>>>>>>>> failure spam level the performance tests are mostly not healthy 
>>>>>>>>>>>>>> anyhow. So
>>>>>>>>>>>>>> is there any high level blocker to switching them or is it just 
>>>>>>>>>>>>>> someone
>>>>>>>>>>>>>> sitting down with each one?
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> I thought I could share my point of view here as I am working
>>>>>>>>>>>>> on the Performance Test part for a while now. I wouldn't say 
>>>>>>>>>>>>> those are
>>>>>>>>>>>>> "mostly not healthy". The situation is as follows:
>>>>>>>>>>>>>
>>>>>>>>>>>>> - totally not working: Python, Spark performance tests (don't
>>>>>>>>>>>>> know why, I'm not maintaining those tests. Should we disable 
>>>>>>>>>>>>> them?)
>>>>>>>>>>>>> - flaky: the recently re-enabled JDBC Performance Test. It's
>>>>>>>>>>>>> seems to be flaky mostly due to:
>>>>>>>>>>>>> https://issues.apache.org/jira/browse/BEAM-3798
>>>>>>>>>>>>> - working well, rarely failing: AvroIO, TextIO, Compressed
>>>>>>>>>>>>> Text, TFRecordIO
>>>>>>>>>>>>>
>>>>>>>>>>>>> Also, some test failures are caused due to pending PRs (we
>>>>>>>>>>>>> sometimes run concrete tests to check if PRs won't break them). 
>>>>>>>>>>>>> This also
>>>>>>>>>>>>> causes failures sometimes.
>>>>>>>>>>>>>
>>>>>>>>>>>>> I can help with switching the Performance tests to Gradle as
>>>>>>>>>>>>> this part seems to be free to take.
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> Łukasz
>>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>
>>>>>
>>>
>

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