Re: [VOTE] KIP-752: Support --bootstrap-server in ReplicaVerificationTool

[Dongjin Lee]

Hi Ismael,

> I am not convinced this tool is actually useful, I haven't seen anyone
using it in years.

Sure, you may right indeed. The `ReplicaVerificationTool` may not be so
useful.[^0] However, I hope to propose another perspective.

As long as this tool is provided with a launcher script in a distribution,
its command-line parameters look so weird to the users since it breaks
consistency. It is even worse with KIP-499
[^1],
which tries to unify the command line parameters and deprecate old ones -
even the tools without launcher script (e.g., VerifiableLog4jAppender) now
uses `--bootstrap-server` parameter. This situation is rather odd, isn't it?

This improvement may not have a great value, but it may reduce awkwardness
from the user's viewpoint.

Best,
Dongjin

[^0]: With my personal experience, I used it to validate the replication
when working with a client so sensitive to replication missing, like a
Semiconductor manufacturing company.
[^1]: Somewhat strange, two omitted tools from KIP-499

all have their own launcher script.

On Thu, Jun 10, 2021 at 2:02 PM Ismael Juma  wrote:

> KAFKA-12600 was a general change, not related to this tool specifically. I
> am not convinced this tool is actually useful, I haven't seen anyone using
> it in years.
>
> Ismael
>
> On Wed, Jun 9, 2021 at 9:51 PM Dongjin Lee  wrote:
>
> > Hi Ismael,
> >
> > Before I submit this KIP, I reviewed some history. When KIP-499
> > <
> >
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-499+-+Unify+connection+name+flag+for+command+line+tool
> > >
> > tried to resolve the inconsistencies between the command line tools, two
> > tools were omitted, probably by mistake.
> >
> > - KAFKA-12878: Support --bootstrap-server kafka-streams-application-reset
> > 
> > - KAFKA-12899: Support --bootstrap-server in ReplicaVerificationTool
> >  (this one)
> >
> > And it seems like this tool is still working. The last update was
> > KAFKA-12600  by you,
> > which will also be included in this 3.0.0 release. It is why I determined
> > that this tool is worth updating.
> >
> > Thanks,
> > Dongjin
> >
> > On Thu, Jun 10, 2021 at 1:26 PM Ismael Juma  wrote:
> >
> > > Hi Dongjin,
> > >
> > > Does this tool still work? I recall that there were some doubts about
> it
> > > and that's why it wasn't updated previously.
> > >
> > > Ismael
> > >
> > > On Sat, Jun 5, 2021 at 2:38 PM Dongjin Lee  wrote:
> > >
> > > > Hi all,
> > > >
> > > > I'd like to call for a vote on KIP-752: Support --bootstrap-server in
> > > > ReplicaVerificationTool:
> > > >
> > > >
> > > >
> > >
> >
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-752%3A+Support+--bootstrap-server+in+ReplicaVerificationTool
> > > >
> > > > Best,
> > > > Dongjin
> > > >
> > > > --
> > > > *Dongjin Lee*
> > > >
> > > > *A hitchhiker in the mathematical world.*
> > > >
> > > >
> > > >
> > > > *github:  github.com/dongjinleekr
> > > > keybase:
> > > https://keybase.io/dongjinleekr
> > > > linkedin:
> > > kr.linkedin.com/in/dongjinleekr
> > > > speakerdeck:
> > > > speakerdeck.com/dongjin
> > > > *
> > > >
> > >
> >
> >
> > --
> > *Dongjin Lee*
> >
> > *A hitchhiker in the mathematical world.*
> >
> >
> >
> > *github:  github.com/dongjinleekr
> > keybase:
> https://keybase.io/dongjinleekr
> > linkedin:
> kr.linkedin.com/in/dongjinleekr
> > speakerdeck:
> > speakerdeck.com/dongjin
> > *
> >
>


-- 
*Dongjin Lee*

*A hitchhiker in the mathematical world.*



*github:  github.com/dongjinleekr
keybase: https://keybase.io/dongjinleekr
linkedin: kr.linkedin.com/in/dongjinleekr
speakerdeck: speakerdeck.com/dongjin
*

[jira] [Created] (KAFKA-12936) In-memory stores are always restored from scratch after dropping out of the group

[A. Sophie Blee-Goldman (Jira)]

A. Sophie Blee-Goldman created KAFKA-12936:
--

 Summary: In-memory stores are always restored from scratch after 
dropping out of the group
 Key: KAFKA-12936
 URL: https://issues.apache.org/jira/browse/KAFKA-12936
 Project: Kafka
  Issue Type: Bug
  Components: streams
Reporter: A. Sophie Blee-Goldman


Whenever an in-memory store is closed, the actual store contents are garbage 
collected and the state will need to be restored from scratch if the task is 
reassigned and re-initialized. We introduced the recycling feature to prevent 
this from occurring when a task is transitioned from standby to active (or vice 
versa), but it's still possible for the in-memory state to be unnecessarily 
wiped out in the case the member has dropped out of the group. In this case, 
the onPartitionsLost callback is invoked, which will close all active tasks as 
dirty before the member rejoins the group. This means that all these tasks will 
need to be restored from scratch if they are reassigned back to this consumer.



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Re: [VOTE] KIP-726: Make the "cooperative-sticky, range" as the default assignor

[Luke Chen]

Hi,
Thanks for the discussion and votes. The KIP passed with:

3  binding votes:
Guozhang Wang
Sophie Blee-Goldman
Konstantine Karantasis

1 non-binding votes:
Dongjin Lee

Thank you.
Luke

On Thu, Jun 10, 2021 at 7:13 AM Konstantine Karantasis
 wrote:

> Thanks for the KIP Luke.
>
> +1 (binding)
>
> Konstantine
>
>
> On Wed, Jun 9, 2021 at 6:36 AM Luke Chen  wrote:
>
> > Hi all,
> > Bump this thread to see if there's anyone wants to vote or have
> questions.
> >
> > Thank you.
> > Luke
> >
> > Sophie Blee-Goldman  於 2021年6月8日 週二 上午4:40
> > 寫道：
> >
> > > +1 (binding)
> > >
> > > Thanks Luke
> > >
> > > On Mon, Jun 7, 2021 at 3:26 AM Luke Chen  wrote:
> > >
> > > > Hi Ismael,
> > > > Thanks for your comments. I updated the KIP for the "Compatibility,
> > > Upgrade
> > > > path" section.
> > > > Simply put, no special upgrade path is necessary.
> > > >
> > > > Thank you.
> > > > Luke
> > > >
> > > >
> > > > On Mon, Jun 7, 2021 at 4:16 PM Ismael Juma 
> wrote:
> > > >
> > > > > Hi Luke,
> > > > >
> > > > > The KIP is a bit unclear with regards to whether two rolling
> bounces
> > > are
> > > > > required or not. What exactly is being proposed?
> > > > >
> > > > > Ismael
> > > > >
> > > > > On Wed, Jun 2, 2021, 8:16 PM Luke Chen  wrote:
> > > > >
> > > > > > Hi all,
> > > > > > I'd like to call for a vote on KIP-726: Make the
> > "cooperative-sticky,
> > > > > > range" as the default assignor.
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=177048248
> > > > > >
> > > > > > This KIP is still waiting for the prerequisite stories to get
> > > > completed,
> > > > > > but it should be soon. Hopefully this can be put into V3.0 since
> > > > > > cooperative rebalancing is a major
> > > > > > improvement to the life of a consumer group (and its operator).
> > > > > >
> > > > > > The discussion thread can be found here:
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> https://lists.apache.org/thread.html/ref63417ea84a58c9068ea025b3ad38ca2cc340f5818ac07cd83452b7%40%3Cdev.kafka.apache.org%3E
> > > > > >
> > > > > > Thank you.
> > > > > > Luke
> > > > > >
> > > > >
> > > >
> > >
> >
>

Re: Request permission for KIP creation

[Guozhang Wang]

Hello Yi,

I've added you to the wiki space. Cheers,

Guozhang

On Thu, Jun 10, 2021 at 12:58 PM Yi Ding  wrote:

> Hi Team,
>
> Could you help grant me permission to create KIP on
>
> https://cwiki.apache.org/confluence/display/KAFKA/Kafka+Improvement+Proposals
> ?
>
> My info is:
> Wiki ID: Yi Ding
> Email: yd...@confluent.io
>
> Thank you!
> Yi
>


-- 
-- Guozhang

[jira] [Resolved] (KAFKA-12934) Move some controller classes to the metadata package

[Colin McCabe (Jira)]

 [ 
https://issues.apache.org/jira/browse/KAFKA-12934?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Colin McCabe resolved KAFKA-12934.
--
Fix Version/s: 3.0.0
 Reviewer: Jason Gustafson
   Resolution: Fixed

> Move some controller classes to the metadata package
> 
>
> Key: KAFKA-12934
> URL: https://issues.apache.org/jira/browse/KAFKA-12934
> Project: Kafka
>  Issue Type: Improvement
>  Components: controller
>Reporter: Colin McCabe
>Assignee: Colin McCabe
>Priority: Minor
>  Labels: kip-500
> Fix For: 3.0.0
>
>
> Move some controller classes to the metadata package so that they can be used 
> with broker snapshots.



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[jira] [Created] (KAFKA-12935) Flaky Test RestoreIntegrationTest.shouldRecycleStateFromStandbyTaskPromotedToActiveTaskAndNotRestore

[Matthias J. Sax (Jira)]

Matthias J. Sax created KAFKA-12935:
---

 Summary: Flaky Test 
RestoreIntegrationTest.shouldRecycleStateFromStandbyTaskPromotedToActiveTaskAndNotRestore
 Key: KAFKA-12935
 URL: https://issues.apache.org/jira/browse/KAFKA-12935
 Project: Kafka
  Issue Type: Test
  Components: streams, unit tests
Reporter: Matthias J. Sax


{quote}java.lang.AssertionError: Expected: <0L> but: was <5005L> at 
org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20) at 
org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:6) at 
org.apache.kafka.streams.integration.RestoreIntegrationTest.shouldRecycleStateFromStandbyTaskPromotedToActiveTaskAndNotRestore(RestoreIntegrationTest.java:374)
{quote}



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[jira] [Created] (KAFKA-12934) Move some controller classes to the metadata package

[Colin McCabe (Jira)]

Colin McCabe created KAFKA-12934:


 Summary: Move some controller classes to the metadata package
 Key: KAFKA-12934
 URL: https://issues.apache.org/jira/browse/KAFKA-12934
 Project: Kafka
  Issue Type: Improvement
Reporter: Colin McCabe
Assignee: Colin McCabe


Move some controller classes to the metadata package so that they can be used 
with broker snapshots.



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Request permission for KIP creation

[Yi Ding]

Hi Team,

Could you help grant me permission to create KIP on
https://cwiki.apache.org/confluence/display/KAFKA/Kafka+Improvement+Proposals
?

My info is:
Wiki ID: Yi Ding
Email: yd...@confluent.io

Thank you!
Yi

[jira] [Created] (KAFKA-12933) Flaky test ReassignPartitionsIntegrationTest.testReassignmentWithAlterIsrDisabled

[Matthias J. Sax (Jira)]

Matthias J. Sax created KAFKA-12933:
---

 Summary: Flaky test 
ReassignPartitionsIntegrationTest.testReassignmentWithAlterIsrDisabled
 Key: KAFKA-12933
 URL: https://issues.apache.org/jira/browse/KAFKA-12933
 Project: Kafka
  Issue Type: Test
  Components: admin
Reporter: Matthias J. Sax


{quote}org.opentest4j.AssertionFailedError: expected:  but was:  
at org.junit.jupiter.api.AssertionUtils.fail(AssertionUtils.java:55) at 
org.junit.jupiter.api.AssertTrue.assertTrue(AssertTrue.java:40) at 
org.junit.jupiter.api.AssertTrue.assertTrue(AssertTrue.java:35) at 
org.junit.jupiter.api.Assertions.assertTrue(Assertions.java:162) at 
kafka.admin.ReassignPartitionsIntegrationTest.executeAndVerifyReassignment(ReassignPartitionsIntegrationTest.scala:130)
 at 
kafka.admin.ReassignPartitionsIntegrationTest.testReassignmentWithAlterIsrDisabled(ReassignPartitionsIntegrationTest.scala:74){quote}



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Build failed in Jenkins: Kafka » Kafka Branch Builder » trunk #213

[Apache Jenkins Server]

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Re: [VOTE] KIP-390: Support Compression Level (rebooted)

[Konstantine Karantasis]

Makes sense. Looks like a good improvement. Thanks for including the
evaluation in the proposal Dongjin.

+1 (binding)

Konstantine

On Wed, Jun 9, 2021 at 6:59 PM Dongjin Lee  wrote:

> Thanks Ismel, Tom and Ryanne,
>
> I am now updating the KIP about the further works. Sure, You won't be
> disappointed.
>
> As of Present:
>
> - binding: +2 (Ismael, Tom)
> - non-binding: +1 (Ryanne)
>
> Anyone else?
>
> Best,
> Dongjin
>
> On Thu, Jun 10, 2021 at 2:03 AM Tom Bentley  wrote:
>
> > Hi Dongjin,
> >
> > Thanks for the KIP, +1 (binding).
> >
> > Kind regards,
> >
> > Tom
> >
> > On Wed, Jun 9, 2021 at 5:16 PM Ismael Juma  wrote:
> >
> > > I'm +1 on the proposed change. As I stated in the discuss thread, I
> don't
> > > think we should rule out the buffer size config, but we could list that
> > as
> > > future work vs rejected alternatives.
> > >
> > > Ismael
> > >
> > > On Sat, Jun 5, 2021 at 2:37 PM Dongjin Lee  wrote:
> > >
> > > > Hi all,
> > > >
> > > > I'd like to open a voting thread for KIP-390: Support Compression
> Level
> > > > (rebooted):
> > > >
> > > >
> > > >
> > >
> >
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-390%3A+Support+Compression+Level
> > > >
> > > > Best,
> > > > Dongjin
> > > >
> > > > --
> > > > *Dongjin Lee*
> > > >
> > > > *A hitchhiker in the mathematical world.*
> > > >
> > > >
> > > >
> > > > *github:  github.com/dongjinleekr
> > > > keybase:
> > > https://keybase.io/dongjinleekr
> > > > linkedin:
> > > kr.linkedin.com/in/dongjinleekr
> > > > speakerdeck:
> > > > speakerdeck.com/dongjin
> > > > *
> > > >
> > >
> >
>
>
> --
> *Dongjin Lee*
>
> *A hitchhiker in the mathematical world.*
>
>
>
> *github:  github.com/dongjinleekr
> keybase: https://keybase.io/dongjinleekr
> linkedin: kr.linkedin.com/in/dongjinleekr
> speakerdeck:
> speakerdeck.com/dongjin
> *
>

[jira] [Created] (KAFKA-12932) Interfaces for SnapshotReader and SnapshotWriter

[Jose Armando Garcia Sancio (Jira)]

Jose Armando Garcia Sancio created KAFKA-12932:
--

 Summary: Interfaces for SnapshotReader and SnapshotWriter
 Key: KAFKA-12932
 URL: https://issues.apache.org/jira/browse/KAFKA-12932
 Project: Kafka
  Issue Type: Sub-task
Reporter: Jose Armando Garcia Sancio


Change the snapshot API so that SnapshotWriter and SnapshotReader are 
interfaces. Change the existing types SnapshotWriter and SnapshotReader to use 
a different name and to implement the interfaces introduced by this issue.



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[jira] [Created] (KAFKA-12931) KIP-746: Revise KRaft Metadata Records

[Colin McCabe (Jira)]

Colin McCabe created KAFKA-12931:


 Summary: KIP-746: Revise KRaft Metadata Records
 Key: KAFKA-12931
 URL: https://issues.apache.org/jira/browse/KAFKA-12931
 Project: Kafka
  Issue Type: Improvement
  Components: kraft, controller
Reporter: Colin McCabe
Assignee: Colin McCabe






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Re: [VOTE] KIP-745: Connect API to restart connector and tasks

[Randall Hauch]

The vote passes with three binding +1s (Konstantine, Tom, me), three
non-binding +1s (Ryanne, Kalpesh, Dongjin), and no -1 votes.

Thanks all for taking the time to review and vote!

Best regards,

Randall


On Thu, Jun 10, 2021 at 9:53 AM Tom Bentley  wrote:

> Hi Randall,
>
> Thanks for the KIP, +1 (binding).
>
> Kind regards,
>
> Tom
>
> On Thu, Jun 10, 2021 at 4:09 AM Dongjin Lee  wrote:
>
> > +1 (non-binding).
> >
> > As of present:
> >
> > - binding: +2 (Randall, Konstantine)
> > - non-binding: +3 (Ryanne, Kalpesh, Dongjin)
> >
> > We need one more +1 binding.
> >
> > Thanks,
> > Dongjin
> >
> > On Tue, Jun 8, 2021 at 6:31 AM Kalpesh Patel  >
> > wrote:
> >
> > > +1 (non-binding)
> > >
> > > Regards
> > > -Kalpesh
> > >
> > > On Mon, Jun 7, 2021 at 3:10 PM Ryanne Dolan 
> > wrote:
> > >
> > > > +1 (non-binding)
> > > >
> > > > Ryanne
> > > >
> > > > On Mon, Jun 7, 2021, 3:03 PM Konstantine Karantasis
> > > >  wrote:
> > > >
> > > > > Thanks Randall.
> > > > >
> > > > > +1 (binding)
> > > > >
> > > > > Konstantine
> > > > >
> > > > > On Mon, Jun 7, 2021 at 12:47 PM Randall Hauch 
> > > wrote:
> > > > >
> > > > > > Hello all,
> > > > > >
> > > > > > I would like to start a vote on KIP-745:
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-745%3A+Connect+API+to+restart+connector+and+tasks
> > > > > >
> > > > > > +1 (binding) from myself.
> > > > > >
> > > > > > Thanks, and best regards!
> > > > > >
> > > > > > Randall
> > > > > >
> > > > >
> > > >
> > >
> >
> >
> > --
> > *Dongjin Lee*
> >
> > *A hitchhiker in the mathematical world.*
> >
> >
> >
> > *github:  github.com/dongjinleekr
> > keybase:
> https://keybase.io/dongjinleekr
> > linkedin:
> kr.linkedin.com/in/dongjinleekr
> > speakerdeck:
> > speakerdeck.com/dongjin
> > *
> >
>

Re: [DISCUSS] KIP-716: Allow configuring the location of the offset-syncs topic with MirrorMaker2

[Mickael Maison]

Hi Tom,

Thanks for the feedback.

Yes unfortunately it's not possible to automatically detect such
misconfiguration. In practice, I expect an administrator to quickly
identify if no checkpoints are being emitted and notice the
offset-syncs topic is missing or that there's a copy in both cluster.

Yes that's right, there is no migration steps. Users will need to stop
their connectors, clear the offset-syncs topic and restart the
connectors with the new configuration.
I've updated the KIP with this explanation.

Thanks

On Thu, Apr 15, 2021 at 6:39 PM Tom Bentley  wrote:
>
> Hi Mickael,
>
> In Connect distributed mode the KIP says "it's necessary to set the config
> on both the Source and Checkpoint connectors". There's no way to detect
> this misconfiguration, because connect just sees two distinct connections.
> So if the user gets this wrong then the source connector would try to
> create it in the "wrong" cluster, the source task will populate it there,
> but the checkpoint task would look in the wrong cluster, and depending on
> how allow.auto.create.topics is configured it could create the topic by
> side effect. Thus am I right that such a misconfiguration could go
> undetected indefinitely?
>
> It would be good to add to the migration section how people would migrate
> from offsets sync topic in the source to the target cluster, or the
> reverse. I think it's just a matter of changing the configs and deleting
> the old offset-sync topic, right? But, assuming this wouldn't be covered in
> the docs, it would be helpful to document it somewhere.
>
> Thanks,
>
> Tom
>
> On Thu, Mar 18, 2021 at 3:51 PM Ryanne Dolan  wrote:
>
> > Looks good to me, I'll vote +1.
> >
> > Ryanne
> >
> > On Thu, Mar 18, 2021, 10:36 AM Mickael Maison 
> > wrote:
> >
> > > Hi,
> > >
> > > I've not seen any feedback on this KIP.
> > > As it's relatively straight forward, I'll open a vote in the next few
> > > days if I don't see anything.
> > >
> > > Thanks
> > >
> > > On Fri, Feb 26, 2021 at 6:20 PM Mickael Maison  > >
> > > wrote:
> > > >
> > > > Hi,
> > > >
> > > > I would like to start a discussion on KIP-716. This will allow
> > > > configuring where MirrorMaker2 creates the offset syncs topic.
> > > >
> > > >
> > >
> > https://cwiki.apache.org/confluence/display/KAFKA/KIP-716%3A+Allow+configuring+the+location+of+the+offset-syncs+topic+with+MirrorMaker2
> > > >
> > > > I look forward to your feedback
> > > > Thanks
> > >
> >

[VOTE] KIP-748: Add Broker Count Metrics

[Ryan Dielhenn]

Hello,

I would like to start a vote on KIP-748: Add Broker Count Metrics.

Here is the KIP:
https://cwiki.apache.org/confluence/display/KAFKA/KIP-748:+Add+Broker+Count+Metrics

Here is the discussion thread:
https://lists.apache.org/thread.html/r308364dfbb3020e6151cef47237c28a4a540e187b8af84ddafec83af%40%3Cdev.kafka.apache.org%3E

Please take a look and vote if you have a chance.

Thank you,
Ryan

Build failed in Jenkins: Kafka » Kafka Branch Builder » trunk #212

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[2021-06-10T16:21:36.225Z] > Task :core:integrationTest FAILED
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[2021-06-10T16:21:36.225Z] FAILURE: Build failed with an exception.
[2021-06-10T16:21:36.225Z] 
[2021-06-10T16:21:36.225Z] * What went wrong:
[2021-06-10T16:21:36.225Z] Execution failed for task ':core:integrationTest'.
[2021-06-10T16:21:36.225Z] > Process 'Gradle Test Executor 128' finished with 
non-zero exit value 1
[2021-06-10T16:21:36.225Z]   This problem might be caused by incorrect test 
process configuration.
[2021-06-10T16:21:36.225Z]   Please refer to the test execution section in the 
User Manual at 
https://docs.gradle.org/7.0.2/userguide/java_testing.html#sec:test_execution
[2021-06-10T16:21:36.225Z] 
[2021-06-10T16:21:36.225Z] * Try:
[2021-06-10T16:21:36.225Z] Run with --stacktrace option to get the stack trace. 
Run with --info or --debug option to get more log output. Run with --scan to 
get full insights.
[2021-06-10T16:21:36.225Z] 
[2021-06-10T16:21:36.225Z] * Get more help at https://help.gradle.org
[2021-06-10T16:21:36.225Z] 
[2021-06-10T16:21:36.225Z] Deprecated Gradle features were used in this build, 
making it incompatible with Gradle 8.0.
[2021-06-10T16:21:36.225Z] Use '--warning-mode all' to show the individual 
deprecation warnings.
[2021-06-10T16:21:36.225Z] See 
https://docs.gradle.org/7.0.2/userguide/command_line_interface.html#sec:command_line_warnings
[2021-06-10T16:21:36.225Z] 
[2021-06-10T16:21:36.225Z] BUILD FAILED in 2h 1m 41s
[2021-06-10T16:21:36.225Z] 196 actionable tasks: 105 executed, 91 up-to-date
[2021-06-10T16:21:36.225Z] 
[2021-06-10T16:21:36.225Z] See the profiling report at: 
file:///home/jenkins/jenkins-agent/workspace/Kafka_kafka_trunk/build/reports/profile/profile-2021-06-10-14-20-01.html
[2021-06-10T16:21:36.225Z] A fine-grained performance profile is available: use 
the --scan option.
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Re: [VOTE] KIP-618: Exactly-once support for source connectors

[Chris Egerton]

Hi all,

Firstly, thanks for the votes!

Secondly--Ismael, in response to your feedback, I have to admit I'm a
little in the dark here. Are you suggesting that there be a new Kafka API
for the act of fencing out a producer with a given transactional ID (or set
of transactional IDs)? If so, can you highlight the advantages of this new
API over the existing INIT_PRODUCER_ID API? At least as far as Connect is
concerned, we likely wouldn't be able to fully leverage any
newly-introduced Kafka APIs in the release that they first appear, since
we'd want to maintain compatibility with older broker versions. One could
argue that since this feature is entirely opt-in we could make it a
requirement for users to upgrade their Kafka clusters to 3.0 (or whatever
version supports this new API) in order to leverage it, but given the
effectiveness of the INIT_PRODUCER_ID API in servicing our needs, I'm not
sure that would be the right tradeoff. And as far as the distinction
between client- and broker-side (or rather, transaction coordinator-side)
logic goes, I'm having trouble envisioning anything--with or without a new
Kafka API--that would make the client-side logic simpler; the existing
proposal only involves a find coordinator request and then an init producer
request; is there a simpler way to handle things client-side that plays
nicely with established idioms for the admin and Kafka APIs?

I plan to leave the vote thread open as long as there are unresolved
comments from serious contributors such as Ismael, and close it as soon as
those are all taken care of.

Cheers,

Chris

On Thu, Jun 10, 2021 at 11:05 AM Ismael Juma  wrote:

> One concern I have is that we are not introducing a request for the fencing
> and implementing that logic in the admin client directly. I would prefer a
> request in the txn coordinator with the right semantics.
>
> Ismael
>
> On Thu, Jun 10, 2021, 7:46 AM Gwen Shapira 
> wrote:
>
> > I'm supportive of the feature and the interface details discussed in the
> > discussion thread. I just want to clarify that I'm voting for the last
> > version discussed in the thread - that includes two phase upgrade and no
> > breaking changes in 3.0.
> >
> > +1 (binding)
> >
> >
> > On Wed, Jun 9, 2021, 5:32 AM Chris Egerton 
> > wrote:
> >
> > > Hi all,
> > >
> > > Friendly reminder that the KIP freeze is today; please cast your votes
> if
> > > you'd like to see this feature introduced in time for 3.0.
> > >
> > > Cheers,
> > >
> > > Chris
> > >
> > > On Mon, Jun 7, 2021 at 1:49 AM Dongjin Lee  wrote:
> > >
> > > > +1 (non-binding).
> > > >
> > > > Thanks,
> > > > Dongjin
> > > >
> > > > On Fri, Jun 4, 2021 at 2:35 PM Ryanne Dolan 
> > > wrote:
> > > >
> > > > > +1 (non-binding)
> > > > >
> > > > > On Thu, Jun 3, 2021, 10:23 AM Chris Egerton
> > >  > > > >
> > > > > wrote:
> > > > >
> > > > > > Hi all,
> > > > > >
> > > > > > I'd like to call for a vote on KIP-618, which adds support for
> > > > > exactly-once
> > > > > > delivery guarantees for source connectors in the Kafka Connect
> > > > framework.
> > > > > >
> > > > > > I suspect there might be a little more discussion to be had but
> > with
> > > > the
> > > > > > KIP freeze deadline approaching, I wanted to give anyone
> following
> > > > along
> > > > > > the chance to cast a +1 as soon as they feel that we've gotten
> to a
> > > > > > reasonable state.
> > > > > >
> > > > > > The KIP:
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-618%3A+Exactly-Once+Support+for+Source+Connectors
> > > > > >
> > > > > > The discussion thread:
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
> https://mail-archives.apache.org/mod_mbox/kafka-dev/202005.mbox/%3CCAMdOrUX-VK5OSB3OOdJNXW_YKEJH9FjQZ4eyzr2GXUhSeDnF3Q%40mail.gmail.com%3E
> > > > > >
> > > > > > Cheers,
> > > > > >
> > > > > > Chris
> > > > > >
> > > > >
> > > >
> > > >
> > > > --
> > > > *Dongjin Lee*
> > > >
> > > > *A hitchhiker in the mathematical world.*
> > > >
> > > >
> > > >
> > > > *github:  github.com/dongjinleekr
> > > > keybase:
> > > https://keybase.io/dongjinleekr
> > > > linkedin:
> > > kr.linkedin.com/in/dongjinleekr
> > > > speakerdeck:
> > > > speakerdeck.com/dongjin
> > > > *
> > > >
> > >
> >
>

Re: [VOTE] KIP-746: Revise KRaft Metadata Records

[Colin McCabe]

Hi all,

Thanks for the discussion and votes.

The vote passes with binding +1s from:
Jason Gustafson
Jun Rao
David Arthur

and a non-binding +1 from
Israel Ekpo

best,
Colin


On Wed, Jun 9, 2021, at 18:15, David Arthur wrote:
> Thanks, Colin, looks good to me. +1
> 
> On Wed, Jun 9, 2021 at 8:32 PM Israel Ekpo  wrote:
> 
> > Makes sense to me
> >
> > +1 (non-binding)
> >
> >
> > On Wed, Jun 9, 2021 at 7:05 PM Jun Rao  wrote:
> >
> > > Hi, Colin,
> > >
> > > Thanks for the KIP. +1 from me.
> > >
> > > Jun
> > >
> > > On Wed, Jun 9, 2021 at 9:36 AM Jason Gustafson
> >  > > >
> > > wrote:
> > >
> > > > +1 Thanks Colin!
> > > >
> > > > On Thu, Jun 3, 2021 at 4:30 PM Colin McCabe 
> > wrote:
> > > >
> > > > > Hi all,
> > > > >
> > > > > I'd like to call a vote for KIP-746: Revise KRaft Metadata Records.
> > > This
> > > > > is a minor KIP which revises the KRaft metadata records slightly for
> > > the
> > > > > upcoming 3.0 release.
> > > > >
> > > > > The KIP is at: https://cwiki.apache.org/confluence/x/34zOCg
> > > > >
> > > > > best,
> > > > > Colin
> > > > >
> > > >
> > >
> >
> 
> 
> -- 
> David Arthur
> 

Re: [VOTE] KIP-618: Exactly-once support for source connectors

[Ismael Juma]

One concern I have is that we are not introducing a request for the fencing
and implementing that logic in the admin client directly. I would prefer a
request in the txn coordinator with the right semantics.

Ismael

On Thu, Jun 10, 2021, 7:46 AM Gwen Shapira 
wrote:

> I'm supportive of the feature and the interface details discussed in the
> discussion thread. I just want to clarify that I'm voting for the last
> version discussed in the thread - that includes two phase upgrade and no
> breaking changes in 3.0.
>
> +1 (binding)
>
>
> On Wed, Jun 9, 2021, 5:32 AM Chris Egerton 
> wrote:
>
> > Hi all,
> >
> > Friendly reminder that the KIP freeze is today; please cast your votes if
> > you'd like to see this feature introduced in time for 3.0.
> >
> > Cheers,
> >
> > Chris
> >
> > On Mon, Jun 7, 2021 at 1:49 AM Dongjin Lee  wrote:
> >
> > > +1 (non-binding).
> > >
> > > Thanks,
> > > Dongjin
> > >
> > > On Fri, Jun 4, 2021 at 2:35 PM Ryanne Dolan 
> > wrote:
> > >
> > > > +1 (non-binding)
> > > >
> > > > On Thu, Jun 3, 2021, 10:23 AM Chris Egerton
> >  > > >
> > > > wrote:
> > > >
> > > > > Hi all,
> > > > >
> > > > > I'd like to call for a vote on KIP-618, which adds support for
> > > > exactly-once
> > > > > delivery guarantees for source connectors in the Kafka Connect
> > > framework.
> > > > >
> > > > > I suspect there might be a little more discussion to be had but
> with
> > > the
> > > > > KIP freeze deadline approaching, I wanted to give anyone following
> > > along
> > > > > the chance to cast a +1 as soon as they feel that we've gotten to a
> > > > > reasonable state.
> > > > >
> > > > > The KIP:
> > > > >
> > > > >
> > > >
> > >
> >
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-618%3A+Exactly-Once+Support+for+Source+Connectors
> > > > >
> > > > > The discussion thread:
> > > > >
> > > > >
> > > >
> > >
> >
> https://mail-archives.apache.org/mod_mbox/kafka-dev/202005.mbox/%3CCAMdOrUX-VK5OSB3OOdJNXW_YKEJH9FjQZ4eyzr2GXUhSeDnF3Q%40mail.gmail.com%3E
> > > > >
> > > > > Cheers,
> > > > >
> > > > > Chris
> > > > >
> > > >
> > >
> > >
> > > --
> > > *Dongjin Lee*
> > >
> > > *A hitchhiker in the mathematical world.*
> > >
> > >
> > >
> > > *github:  github.com/dongjinleekr
> > > keybase:
> > https://keybase.io/dongjinleekr
> > > linkedin:
> > kr.linkedin.com/in/dongjinleekr
> > > speakerdeck:
> > > speakerdeck.com/dongjin
> > > *
> > >
> >
>

Re: [VOTE] KIP-745: Connect API to restart connector and tasks

[Tom Bentley]

Hi Randall,

Thanks for the KIP, +1 (binding).

Kind regards,

Tom

On Thu, Jun 10, 2021 at 4:09 AM Dongjin Lee  wrote:

> +1 (non-binding).
>
> As of present:
>
> - binding: +2 (Randall, Konstantine)
> - non-binding: +3 (Ryanne, Kalpesh, Dongjin)
>
> We need one more +1 binding.
>
> Thanks,
> Dongjin
>
> On Tue, Jun 8, 2021 at 6:31 AM Kalpesh Patel 
> wrote:
>
> > +1 (non-binding)
> >
> > Regards
> > -Kalpesh
> >
> > On Mon, Jun 7, 2021 at 3:10 PM Ryanne Dolan 
> wrote:
> >
> > > +1 (non-binding)
> > >
> > > Ryanne
> > >
> > > On Mon, Jun 7, 2021, 3:03 PM Konstantine Karantasis
> > >  wrote:
> > >
> > > > Thanks Randall.
> > > >
> > > > +1 (binding)
> > > >
> > > > Konstantine
> > > >
> > > > On Mon, Jun 7, 2021 at 12:47 PM Randall Hauch 
> > wrote:
> > > >
> > > > > Hello all,
> > > > >
> > > > > I would like to start a vote on KIP-745:
> > > > >
> > > > >
> > > >
> > >
> >
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-745%3A+Connect+API+to+restart+connector+and+tasks
> > > > >
> > > > > +1 (binding) from myself.
> > > > >
> > > > > Thanks, and best regards!
> > > > >
> > > > > Randall
> > > > >
> > > >
> > >
> >
>
>
> --
> *Dongjin Lee*
>
> *A hitchhiker in the mathematical world.*
>
>
>
> *github:  github.com/dongjinleekr
> keybase: https://keybase.io/dongjinleekr
> linkedin: kr.linkedin.com/in/dongjinleekr
> speakerdeck:
> speakerdeck.com/dongjin
> *
>

Re: [VOTE] KIP-618: Exactly-once support for source connectors

[Gwen Shapira]

I'm supportive of the feature and the interface details discussed in the
discussion thread. I just want to clarify that I'm voting for the last
version discussed in the thread - that includes two phase upgrade and no
breaking changes in 3.0.

+1 (binding)


On Wed, Jun 9, 2021, 5:32 AM Chris Egerton 
wrote:

> Hi all,
>
> Friendly reminder that the KIP freeze is today; please cast your votes if
> you'd like to see this feature introduced in time for 3.0.
>
> Cheers,
>
> Chris
>
> On Mon, Jun 7, 2021 at 1:49 AM Dongjin Lee  wrote:
>
> > +1 (non-binding).
> >
> > Thanks,
> > Dongjin
> >
> > On Fri, Jun 4, 2021 at 2:35 PM Ryanne Dolan 
> wrote:
> >
> > > +1 (non-binding)
> > >
> > > On Thu, Jun 3, 2021, 10:23 AM Chris Egerton
>  > >
> > > wrote:
> > >
> > > > Hi all,
> > > >
> > > > I'd like to call for a vote on KIP-618, which adds support for
> > > exactly-once
> > > > delivery guarantees for source connectors in the Kafka Connect
> > framework.
> > > >
> > > > I suspect there might be a little more discussion to be had but with
> > the
> > > > KIP freeze deadline approaching, I wanted to give anyone following
> > along
> > > > the chance to cast a +1 as soon as they feel that we've gotten to a
> > > > reasonable state.
> > > >
> > > > The KIP:
> > > >
> > > >
> > >
> >
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-618%3A+Exactly-Once+Support+for+Source+Connectors
> > > >
> > > > The discussion thread:
> > > >
> > > >
> > >
> >
> https://mail-archives.apache.org/mod_mbox/kafka-dev/202005.mbox/%3CCAMdOrUX-VK5OSB3OOdJNXW_YKEJH9FjQZ4eyzr2GXUhSeDnF3Q%40mail.gmail.com%3E
> > > >
> > > > Cheers,
> > > >
> > > > Chris
> > > >
> > >
> >
> >
> > --
> > *Dongjin Lee*
> >
> > *A hitchhiker in the mathematical world.*
> >
> >
> >
> > *github:  github.com/dongjinleekr
> > keybase:
> https://keybase.io/dongjinleekr
> > linkedin:
> kr.linkedin.com/in/dongjinleekr
> > speakerdeck:
> > speakerdeck.com/dongjin
> > *
> >
>

Build failed in Jenkins: Kafka » Kafka Branch Builder » trunk #211

[Apache Jenkins Server]

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[jira] [Created] (KAFKA-12930) Deprecate support for Scala 2.12 in Kafka 3.0

[Ismael Juma (Jira)]

Ismael Juma created KAFKA-12930:
---

 Summary: Deprecate support for Scala 2.12 in Kafka 3.0
 Key: KAFKA-12930
 URL: https://issues.apache.org/jira/browse/KAFKA-12930
 Project: Kafka
  Issue Type: Sub-task
Reporter: Ismael Juma
Assignee: Ismael Juma
 Fix For: 3.0.0






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[jira] [Created] (KAFKA-12929) KIP-750: Deprecate Java 8 in Kafka 3.0

[Ismael Juma (Jira)]

Ismael Juma created KAFKA-12929:
---

 Summary: KIP-750: Deprecate Java 8 in Kafka 3.0
 Key: KAFKA-12929
 URL: https://issues.apache.org/jira/browse/KAFKA-12929
 Project: Kafka
  Issue Type: Sub-task
Reporter: Ismael Juma
Assignee: Ismael Juma
 Fix For: 3.0.0






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Re: [VOTE] KIP-751: Drop support for Scala 2.12 in Kafka 4.0 (deprecate in 3.0)

[Ismael Juma]

Thanks everyone for the votes and discussion. The KIP passed with:

6 binding +1s:
1. Konstantine K
2. Bruno C
3. Mickael M
4. David J
5. Tom B
6. me

5 non-binding +1s:
1. Josep P
2. Satish D
3. Israel E
4. Luke C
5. Mathew D

Ismael

On Mon, Jun 7, 2021 at 6:48 AM Ismael Juma  wrote:

> Since the goal is to provide ample warning regarding the future removal of
> Scala 2.12 and the change we're proposing for 3.0 is simply a documentation
> update, I am starting the vote:
>
> https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=181308218
>
> If there are concerns or objections, feel free to point them out in this
> thread or the discuss thread.
>
> Ismael
>

Re: [VOTE] KIP-750: Drop support for Java 8 in Kafka 4.0 (deprecate in 3.0)

[Ismael Juma]

Thanks all for the discussion and votes. The KIP passed with:

8 +1 binding votes:
1. Konstantine K
2. Bruno C
3, Mickael M
4. Tom B
5. Colin M
6. David J
7. Rajini S
8. me

7 +1 non-binding votes:
1. Josep P
2. Dongjin L
3. Satish D
4. Ryanne D
5. Luke C
6. Matthew D
7. Israel E


On Mon, Jun 7, 2021 at 6:50 AM Ismael Juma  wrote:

> Since the goal is to provide ample warning regarding the future removal of
> Java 8 support and the change we're proposing for 3.0 is simply a
> documentation update, I am starting the vote:
>
> https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=181308223
>
> If there are concerns or objections, feel free to point them out in this
> thread or the discuss thread.
>
> Ismael
>

Build failed in Jenkins: Kafka » Kafka Branch Builder » trunk #210

[Apache Jenkins Server]

See 


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Review of the pull-request

[Maksim Yakunin]

Hey, guys!

I opened my first pull-request about two weeks ago.
Could you have a look at it, please?
Here it is: https://github.com/apache/kafka/pull/10775

Many thanks in advance!

-- 

*Best regards, Maksim Iakunin.*

*Phone: +7 (915) 023-21-45**Email: yakun...@gmail.com *

Re: [VOTE] KIP-750: Drop support for Java 8 in Kafka 4.0 (deprecate in 3.0)

[Rajini Sivaram]

+1 (binding)

Thanks for the KIP, Ismael!

Regards,

Rajini


On Thu, Jun 10, 2021 at 8:07 AM David Jacot 
wrote:

> +1 (binding), thanks!
>
> On Thu, Jun 10, 2021 at 3:17 AM Colin McCabe  wrote:
>
> > +1 (binding).
> >
> > Looking forward to 4.0 (heh)
> >
> > best,
> > Colin
> >
> > On Wed, Jun 9, 2021, at 02:45, Tom Bentley wrote:
> > > Hi Ismael,
> > >
> > > Thanks for the KIP, +1 (binding).
> > >
> > > Cheers,
> > >
> > > Tom
> > >
> > > On Wed, Jun 9, 2021 at 10:04 AM Mickael Maison <
> mickael.mai...@gmail.com
> > >
> > > wrote:
> > >
> > > > +1 (binding)
> > > > Thanks
> > > >
> > > > On Wed, Jun 9, 2021 at 1:25 AM Israel Ekpo 
> > wrote:
> > > > >
> > > > > This is great!
> > > > >
> > > > > Thanks for the KIP
> > > > >
> > > > > +1 (non-binding)
> > > > >
> > > > >
> > > > > On Tue, Jun 8, 2021 at 3:13 AM Bruno Cadonna 
> > wrote:
> > > > >
> > > > > > Hi Ismael,
> > > > > >
> > > > > > Thank you for the KIP!
> > > > > >
> > > > > > +1 (binding)
> > > > > >
> > > > > > Best,
> > > > > > Bruno
> > > > > >
> > > > > > On 08.06.21 10:11, Matthew de Detrich wrote:
> > > > > > > +1 (non binding)
> > > > > > >
> > > > > > > On Tue, Jun 8, 2021 at 4:48 AM Luke Chen 
> > wrote:
> > > > > > >
> > > > > > >> Hi Ismael,
> > > > > > >> Thanks for the KIP.
> > > > > > >> +1 (non-binding)
> > > > > > >>
> > > > > > >> Thanks.
> > > > > > >> Luke
> > > > > > >>
> > > > > > >> On Tue, Jun 8, 2021 at 7:18 AM Konstantine Karantasis
> > > > > > >>  wrote:
> > > > > > >>
> > > > > > >>> Thanks for the KIP Ismael. I agree that giving an early
> enough
> > > > > > >> deprecation
> > > > > > >>> notice for an upcoming change like this one and doing so in a
> > major
> > > > > > >> release
> > > > > > >>> is best in this case.
> > > > > > >>>
> > > > > > >>> +1 (binding)
> > > > > > >>>
> > > > > > >>> Konstantine
> > > > > > >>>
> > > > > > >>> On Mon, Jun 7, 2021 at 7:30 AM Ryanne Dolan <
> > ryannedo...@gmail.com
> > > > >
> > > > > > >> wrote:
> > > > > > >>>
> > > > > >  +1 (non-binding)
> > > > > > 
> > > > > >  Ryanne
> > > > > > 
> > > > > >  On Mon, Jun 7, 2021, 9:26 AM Satish Duggana <
> > > > satish.dugg...@gmail.com
> > > > > > >
> > > > > >  wrote:
> > > > > > 
> > > > > > > +1 (non-binding)
> > > > > > >
> > > > > > > On Mon, 7 Jun 2021 at 19:30, Dongjin Lee <
> dong...@apache.org
> > >
> > > > wrote:
> > > > > > >
> > > > > > >> +1 (non-binding)
> > > > > > >>
> > > > > > >> As a note: I think the exact removal schedule may be
> > changed.
> > > > > > >>
> > > > > > >> Best,
> > > > > > >> Dongjin
> > > > > > >>
> > > > > > >> On Mon, Jun 7, 2021, 10:56 PM Josep Prat
> > > > > > >>  > > > > > 
> > > > > > >> wrote:
> > > > > > >>
> > > > > > >>> Thanks Ismael, it's a +1 (non-binding) from
> > > > > > <
> > > >
> >
> https://www.google.com/maps/search/Ismael,+it's+a+%2B1+(non-binding)+from?entry=gmail=g
> > > > >
> > > > > > my side,
> > > > > > >>>
> > > > > > >>>
> > > > > > >>> Best,
> > > > > > >>>
> > > > > > >>> ———
> > > > > > >>> Josep Prat
> > > > > > >>>
> > > > > > >>> Aiven Deutschland GmbH
> > > > > > >>>
> > > > > > >>> Immanuelkirchstraße 26, 10405 Berlin
> > > > > > >>>
> > > > > > >>> Amtsgericht Charlottenburg, HRB 209739 B
> > > > > > >>>
> > > > > > >>> Geschäftsführer: Oskari Saarenmaa & Hannu Valtonen
> > > > > > >>>
> > > > > > >>> m: +491715557497
> > > > > > >>>
> > > > > > >>> w: aiven.io
> > > > > > >>>
> > > > > > >>> e: josep.p...@aiven.io
> > > > > > >>>
> > > > > > >>> On Mon, Jun 7, 2021, 15:51 Ismael Juma <
> ism...@juma.me.uk>
> > > > > > >> wrote:
> > > > > > >>>
> > > > > >  Since the goal is to provide ample warning regarding the
> > > > future
> > > > > > > removal
> > > > > > >>> of
> > > > > >  Java 8 support and the change we're proposing for 3.0 is
> > > > > > >> simply a
> > > > > >  documentation update, I am starting the vote:
> > > > > > 
> > > > > > 
> > > > > > >>>
> > > > > > >>
> > > > > > >
> > > > > > 
> > > > > > >>>
> > > > > > >>
> > > > > >
> > > >
> >
> https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=181308223
> > > > > > 
> > > > > >  If there are concerns or objections, feel free to point
> > them
> > > > > > >> out
> > > > > > >>> in
> > > > > > >> this
> > > > > >  thread or the discuss thread.
> > > > > > 
> > > > > >  Ismael
> > > > > > 
> > > > > > >>>
> > > > > > >>
> > > > > > >
> > > > > > 
> > > > > > >>>
> > > > > > >>
> > > > > > >
> > > > > > >
> > > > > >
> > > >
> > > >
> > >
> >
>

[jira] [Created] (KAFKA-12928) Add a check whether the Task's statestore is actually a directory

[Dongjin Lee (Jira)]

Dongjin Lee created KAFKA-12928:
---

 Summary: Add a check whether the Task's statestore is actually a 
directory
 Key: KAFKA-12928
 URL: https://issues.apache.org/jira/browse/KAFKA-12928
 Project: Kafka
  Issue Type: Bug
  Components: streams
Reporter: Dongjin Lee
Assignee: Dongjin Lee


I found this problem while working on 
[KAFKA-10585|https://issues.apache.org/jira/browse/KAFKA-10585].

As of present, StateDirectory checks whether the Task's statestore directory 
exists and, if not, creates it. Since it does not check whether it is actually 
a directory, for example, if a regular file occupies the Task's statestore's 
path, the validation logic may be detoured.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

Re: [DISCUSS] KIP-726: Make the CooperativeStickyAssignor as the default assignor

[Luke Chen]

Hi Ryan,
Thanks for your good comments. I've listed your comments in "Rejected
Alternatives" in KIP.

1. Some cooperative-sticky related defects might not free before V3.0
→ We've marked important defects as blocker for V3.0, ex: KAFKA-12896.
Please raise any important defect if you found any.

2. Cooperative-sticky assignor is also very new for C/C++ users in
librdkafka, so not many in that community have tried incremental
cooperative yet. And bugs are still recently being worked out there too.
→ Thanks for raising this. I checked this library and found currently
only 1 cooperative-sticky related bug open, which is good (10 bugs are
fixed). Anyway, I think the clients can always change the assignor to other
assignors if there are still bugs in the library.

Thank you.
Luke

On Thu, Jun 10, 2021 at 12:40 PM Ryan Leslie  wrote:

> Thanks for the quick replies, Luke and Sophie.
>
> I've not voted, but I agree with accepting the KIP since it's a superior
> feature. I was just reacting mostly to this comment since it didn't mention
> open issues:
>
> > > > Thanks Luke. We may as well get this KIP in to 3.0 so that we can
> fully
> > > > enable cooperative rebalancing
> > > > by default in 3.0 if we have KAFKA-12477 done in time, and if we
> don't
> > > then
> > > > there's no harm as it's
> > > > not going to change the behavior.
>
> But I see now, as Luke said, that the main issue is already considered a
> blocker so it was assumed. Though, I did also wonder if any bugs that may
> have existed since several version ago should actually hold up 3.0, which I
> know is especially about moving away from ZooKeeper.
>
> My sentiment was just that during many release cycles of Kafka since
> cooperative was introduced, there have been issues discovered. And that
> makes sense given that the implementation was complex and quite a lot of
> code changed to make it happen. Hopefully the last of the kinks will have
> been worked out before 3.0. I just wondered if it should be a default in
> 3.0 if it hasn't yet been free of defects for a significant period of time.
> KIP-726 doesn't list any drawbacks for cooperative-sticky, but perhaps this
> is one. I also appreciate that it's already successfully adopted by many,
> particularly streams / connect users. But this may also be where the
> feature has the most benefit due to expensive setup/teardown during
> rebalance, and stop-the-world can be less of a concern for many "regular
> consumers".
>
> This is probably irrelevant here, but another thing to mention is that the
> feature is also very new for C/C++ users in librdkafka, so not many in that
> community have tried incremental cooperative yet. And bugs are still
> recently being worked out there too.
>
> Just playing devil's advocate here, sorry to come across as a negative
> nancy!
>
> On 2021/06/09 00:05:41, Sophie Blee-Goldman 
> wrote:
> > Hey Ryan,
> >
> > Yes, I believe any open bugs regarding the cooperative-sticky assignor
> > should be considered as blockers
> > to it being made the default, if not blockers to the release in general.
> I
> > don't think they need to block the
> > acceptance of this KIP, though, just possibly the implementation of it.
>

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[2021-06-10T08:12:32.452Z] 270 tests completed, 1 failed
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[2021-06-10T08:12:39.890Z] > Task :core:integrationTest
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[2021-06-10T08:12:39.890Z] 

Re: [VOTE] KIP-750: Drop support for Java 8 in Kafka 4.0 (deprecate in 3.0)

[David Jacot]

+1 (binding), thanks!

On Thu, Jun 10, 2021 at 3:17 AM Colin McCabe  wrote:

> +1 (binding).
>
> Looking forward to 4.0 (heh)
>
> best,
> Colin
>
> On Wed, Jun 9, 2021, at 02:45, Tom Bentley wrote:
> > Hi Ismael,
> >
> > Thanks for the KIP, +1 (binding).
> >
> > Cheers,
> >
> > Tom
> >
> > On Wed, Jun 9, 2021 at 10:04 AM Mickael Maison  >
> > wrote:
> >
> > > +1 (binding)
> > > Thanks
> > >
> > > On Wed, Jun 9, 2021 at 1:25 AM Israel Ekpo 
> wrote:
> > > >
> > > > This is great!
> > > >
> > > > Thanks for the KIP
> > > >
> > > > +1 (non-binding)
> > > >
> > > >
> > > > On Tue, Jun 8, 2021 at 3:13 AM Bruno Cadonna 
> wrote:
> > > >
> > > > > Hi Ismael,
> > > > >
> > > > > Thank you for the KIP!
> > > > >
> > > > > +1 (binding)
> > > > >
> > > > > Best,
> > > > > Bruno
> > > > >
> > > > > On 08.06.21 10:11, Matthew de Detrich wrote:
> > > > > > +1 (non binding)
> > > > > >
> > > > > > On Tue, Jun 8, 2021 at 4:48 AM Luke Chen 
> wrote:
> > > > > >
> > > > > >> Hi Ismael,
> > > > > >> Thanks for the KIP.
> > > > > >> +1 (non-binding)
> > > > > >>
> > > > > >> Thanks.
> > > > > >> Luke
> > > > > >>
> > > > > >> On Tue, Jun 8, 2021 at 7:18 AM Konstantine Karantasis
> > > > > >>  wrote:
> > > > > >>
> > > > > >>> Thanks for the KIP Ismael. I agree that giving an early enough
> > > > > >> deprecation
> > > > > >>> notice for an upcoming change like this one and doing so in a
> major
> > > > > >> release
> > > > > >>> is best in this case.
> > > > > >>>
> > > > > >>> +1 (binding)
> > > > > >>>
> > > > > >>> Konstantine
> > > > > >>>
> > > > > >>> On Mon, Jun 7, 2021 at 7:30 AM Ryanne Dolan <
> ryannedo...@gmail.com
> > > >
> > > > > >> wrote:
> > > > > >>>
> > > > >  +1 (non-binding)
> > > > > 
> > > > >  Ryanne
> > > > > 
> > > > >  On Mon, Jun 7, 2021, 9:26 AM Satish Duggana <
> > > satish.dugg...@gmail.com
> > > > > >
> > > > >  wrote:
> > > > > 
> > > > > > +1 (non-binding)
> > > > > >
> > > > > > On Mon, 7 Jun 2021 at 19:30, Dongjin Lee  >
> > > wrote:
> > > > > >
> > > > > >> +1 (non-binding)
> > > > > >>
> > > > > >> As a note: I think the exact removal schedule may be
> changed.
> > > > > >>
> > > > > >> Best,
> > > > > >> Dongjin
> > > > > >>
> > > > > >> On Mon, Jun 7, 2021, 10:56 PM Josep Prat
> > > > > >>  > > > > 
> > > > > >> wrote:
> > > > > >>
> > > > > >>> Thanks Ismael, it's a +1 (non-binding) from
> > > > > <
> > >
> https://www.google.com/maps/search/Ismael,+it's+a+%2B1+(non-binding)+from?entry=gmail=g
> > > >
> > > > > my side,
> > > > > >>>
> > > > > >>>
> > > > > >>> Best,
> > > > > >>>
> > > > > >>> ———
> > > > > >>> Josep Prat
> > > > > >>>
> > > > > >>> Aiven Deutschland GmbH
> > > > > >>>
> > > > > >>> Immanuelkirchstraße 26, 10405 Berlin
> > > > > >>>
> > > > > >>> Amtsgericht Charlottenburg, HRB 209739 B
> > > > > >>>
> > > > > >>> Geschäftsführer: Oskari Saarenmaa & Hannu Valtonen
> > > > > >>>
> > > > > >>> m: +491715557497
> > > > > >>>
> > > > > >>> w: aiven.io
> > > > > >>>
> > > > > >>> e: josep.p...@aiven.io
> > > > > >>>
> > > > > >>> On Mon, Jun 7, 2021, 15:51 Ismael Juma 
> > > > > >> wrote:
> > > > > >>>
> > > > >  Since the goal is to provide ample warning regarding the
> > > future
> > > > > > removal
> > > > > >>> of
> > > > >  Java 8 support and the change we're proposing for 3.0 is
> > > > > >> simply a
> > > > >  documentation update, I am starting the vote:
> > > > > 
> > > > > 
> > > > > >>>
> > > > > >>
> > > > > >
> > > > > 
> > > > > >>>
> > > > > >>
> > > > >
> > >
> https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=181308223
> > > > > 
> > > > >  If there are concerns or objections, feel free to point
> them
> > > > > >> out
> > > > > >>> in
> > > > > >> this
> > > > >  thread or the discuss thread.
> > > > > 
> > > > >  Ismael
> > > > > 
> > > > > >>>
> > > > > >>
> > > > > >
> > > > > 
> > > > > >>>
> > > > > >>
> > > > > >
> > > > > >
> > > > >
> > >
> > >
> >
>