I can do some tests on Spark / YARN tomorrow (CEST timezone). Sorry I’ve just 
been too busy to assist.

Tim

> On 25 Oct 2018, at 18:59, Kenneth Knowles <k...@apache.org> wrote:
> 
> I tried to do a more thorough job on this.
> 
>  - I could not reproduce the slowdown in Query 9. I believe the variance was 
> simply high given the parameters and environment
>  - I saw the same slowdown in Query 8 when running as part of the suite, but 
> it vanished when I ran repeatedly on its own, so again it is not good 
> methodology probably
> 
> We do have the dashboard at 
> https://apache-beam-testing.appspot.com/dashboard-admin though no anomaly 
> detection set up AFAIK.
> 
>  - There is no issue easily visible in DirectRunner: 
> https://apache-beam-testing.appspot.com/explore?dashboard=5084698770407424
>  - There is a notable degradation in Spark runner on 10/5 for many queries. 
> https://apache-beam-testing.appspot.com/explore?dashboard=5138380291571712
>  - Something minor happened for Dataflow around 10/1: 
> https://apache-beam-testing.appspot.com/explore?dashboard=5670405876482048
>  - Flink runner seems to have had some fantastic improvements :-) 
> https://apache-beam-testing.appspot.com/explore?dashboard=5699257587728384
> 
> So if there is a blocker it would really be the Spark runner perf changes. Of 
> course, all these except Dataflow are using local instances so may not be 
> representative of larger scale AFAIK.
> 
> Kenn
> 
>> On Wed, Oct 24, 2018 at 9:48 AM Maximilian Michels <m...@apache.org> wrote:
>> I've run WordCount using Quickstart with the FlinkRunner (locally and 
>> against a Flink cluster).
>> 
>> Would give a +1 but waiting what Kenn finds.
>> 
>> -Max
>> 
>> On 23.10.18 07:11, Ahmet Altay wrote:
>> > 
>> > 
>> > On Mon, Oct 22, 2018 at 10:06 PM, Kenneth Knowles <k...@apache.org 
>> > <mailto:k...@apache.org>> wrote:
>> > 
>> >     You two did so much verification I had a hard time finding something
>> >     where my help was meaningful! :-)
>> > 
>> >     I did run the Nexmark suite on the DirectRunner against 2.7.0 and
>> >     2.8.0 following
>> >     
>> > https://beam.apache.org/documentation/sdks/java/nexmark/#running-smoke-suite-on-the-directrunner-local
>> >     
>> > <https://beam.apache.org/documentation/sdks/java/nexmark/#running-smoke-suite-on-the-directrunner-local>.
>> > 
>> >     It is admittedly a very silly test - the instructions leave
>> >     immutability enforcement on, etc. But it does appear that there is a
>> >     30% degradation in query 8 and 15% in query 9. These are the pure
>> >     Java tests, not the SQL variants. The rest of the queries are close
>> >     enough that differences are not meaningful.
>> > 
>> > 
>> > (It would be a good improvement for us to have alerts on daily 
>> > benchmarks if we do not have such a concept already.)
>> > 
>> > 
>> >     I would ask a little more time to see what is going on here - is it
>> >     a real performance issue or an artifact of how the tests are
>> >     invoked, or ...?
>> > 
>> > 
>> > Thank you! Much appreciated. Please let us know when you are done with 
>> > your investigation.
>> > 
>> > 
>> >     Kenn
>> > 
>> >     On Mon, Oct 22, 2018 at 6:20 PM Ahmet Altay <al...@google.com
>> >     <mailto:al...@google.com>> wrote:
>> > 
>> >         Hi all,
>> > 
>> >         Did you have a chance to review this RC? Between me and Robert
>> >         we ran a significant chunk of the validations. Let me know if
>> >         you have any questions.
>> > 
>> >         Ahmet
>> > 
>> >         On Thu, Oct 18, 2018 at 5:26 PM, Ahmet Altay <al...@google.com
>> >         <mailto:al...@google.com>> wrote:
>> > 
>> >             Hi everyone,
>> > 
>> >             Please review and vote on the release candidate #1 for the
>> >             version 2.8.0, as follows:
>> >             [ ] +1, Approve the release
>> >             [ ] -1, Do not approve the release (please provide specific
>> >             comments)
>> > 
>> >             The complete staging area is available for your review,
>> >             which includes:
>> >             * JIRA release notes [1],
>> >             * the official Apache source release to be deployed to
>> >             dist.apache.org <http://dist.apache.org> [2], which is
>> >             signed with the key with fingerprint 6096FA00 [3],
>> >             * all artifacts to be deployed to the Maven Central
>> >             Repository [4],
>> >             * source code tag "v2.8.0-RC1" [5],
>> >             * website pull request listing the release and publishing
>> >             the API reference manual [6].
>> >             * Python artifacts are deployed along with the source
>> >             release to the dist.apache.org <http://dist.apache.org> [2].
>> >             * Validation sheet with a tab for 2.8.0 release to help with
>> >             validation [7].
>> > 
>> >             The vote will be open for at least 72 hours. It is adopted
>> >             by majority approval, with at least 3 PMC affirmative votes.
>> > 
>> >             Thanks,
>> >             Ahmet
>> > 
>> >             [1]
>> >             
>> > https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12319527&version=12343985
>> >             
>> > <https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12319527&version=12343985>
>> >             [2] https://dist.apache.org/repos/dist/dev/beam/2.8.0
>> >             <https://dist.apache.org/repos/dist/dev/beam/2.8.0>
>> >             [3] https://dist.apache.org/repos/dist/dev/beam/KEYS
>> >             <https://dist.apache.org/repos/dist/dev/beam/KEYS>
>> >             [4]
>> >             
>> > https://repository.apache.org/content/repositories/orgapachebeam-1049/
>> >             
>> > <https://repository.apache.org/content/repositories/orgapachebeam-1049/>
>> >             [5] https://github.com/apache/beam/tree/v2.8.0-RC1
>> >             <https://github.com/apache/beam/tree/v2.8.0-RC1>
>> >             [6] https://github.com/apache/beam-site/pull/583
>> >             <https://github.com/apache/beam-site/pull/583> and
>> >             https://github.com/apache/beam/pull/6745
>> >             <https://github.com/apache/beam/pull/6745>
>> >             [7]
>> >             
>> > https://docs.google.com/spreadsheets/d/1qk-N5vjXvbcEk68GjbkSZTR8AGqyNUM-oLFo_ZXBpJw/edit#gid=1854712816
>> >             
>> > <https://docs.google.com/spreadsheets/d/1qk-N5vjXvbcEk68GjbkSZTR8AGqyNUM-oLFo_ZXBpJw/edit#gid=1854712816>
>> > 
>> > 
>> > 

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