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________________________________ From: Stanislav Kozlovski <stanis...@confluent.io> Sent: Monday, December 10, 2018 11:28 PM To: dev@kafka.apache.org Subject: Re: [VOTE] KIP-345: Introduce static membership protocol to reduce consumer rebalances This is great work, Boyang. Thank you very much. +1 (non-binding) On Mon, Dec 10, 2018 at 6:09 PM Boyang Chen <bche...@outlook.com> wrote: > Hey there, could I get more votes on this thread? > > Thanks for the vote from Mayuresh and Mike :) > > Best, > Boyang > ________________________________ > From: Mayuresh Gharat <gharatmayures...@gmail.com> > Sent: Thursday, December 6, 2018 10:53 AM > To: dev@kafka.apache.org > Subject: Re: [VOTE] KIP-345: Introduce static membership protocol to > reduce consumer rebalances > > +1 (non-binding) > > Thanks, > > Mayuresh > > On Tue, Dec 4, 2018 at 6:58 AM Mike Freyberger <mike.freyber...@xandr.com> > wrote: > > > +1 (non binding) > > > > On 12/4/18, 9:43 AM, "Patrick Williams" <patrick.willi...@storageos.com > > > > wrote: > > > > Pls take me off this VOTE list > > > > Best, > > > > Patrick Williams > > > > Sales Manager, UK & Ireland, Nordics & Israel > > StorageOS > > +44 (0)7549 676279 > > patrick.willi...@storageos.com > > > > 20 Midtown > > 20 Proctor Street > > Holborn > > London WC1V 6NX > > > > Twitter: @patch37 > > LinkedIn: linkedin.com/in/patrickwilliams4 < > > > https://nam02.safelinks.protection.outlook.com/?url=http%3A%2F%2Flinkedin.com%2Fin%2Fpatrickwilliams4&data=02%7C01%7C%7C9b12ec4ce9ae4454db8a08d65f3a4862%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636801101252994092&sdata=ipDTX%2FGARrFkwZfRuOY0M5m3iJ%2Bnkxovv6u9bBDaTyc%3D&reserved=0 > > > > > > > https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fslack.storageos.com%2F&data=02%7C01%7C%7C9b12ec4ce9ae4454db8a08d65f3a4862%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636801101252994092&sdata=hxuKU6aZdQU%2FpxpqaaThR6IjpEmwIP5%2F3NhYzMYijkw%3D&reserved=0 > > > > > > > > On 03/12/2018, 17:34, "Guozhang Wang" <wangg...@gmail.com> wrote: > > > > Hello Boyang, > > > > I've browsed through the new wiki and there are still a couple of > > minor > > things to notice: > > > > 1. RemoveMemberFromGroupOptions seems not defined anywhere. > > > > 2. LeaveGroupRequest added a list of group instance id, but still > > keep the > > member id as a singleton; is that intentional? I think to make > the > > protocol > > consistent both member id and instance ids could be plural. > > > > 3. About the *kafka-remove-member-from-group.sh *tool, I'm > > wondering if we > > can defer adding this while just add the corresponding calls of > the > > LeaveGroupRequest inside Streams until we have used it in > > production and > > hence have a better understanding on how flexible or extensible > if > > we want > > to add any cmd tools. The rationale is that if we do not > > necessarily need > > it now, we can always add it later with a more think-through API > > design, > > but if we add the tool in a rush, we may need to extend or modify > > it soon > > after we realize its limits in operations. > > > > Otherwise, I'm +1 on the proposal. > > > > Guozhang > > > > > > On Mon, Dec 3, 2018 at 9:14 AM Boyang Chen <bche...@outlook.com> > > wrote: > > > > > Hey community friends, > > > > > > after another month of polishing, KIP-345< > > > > > > https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwiki.apache.org%2Fconfluence%2Fdisplay%2FKAFKA%2FKIP-345%253A%2BIntroduce%2Bstatic%2Bmembership%2Bprotocol%2Bto%2Breduce%2Bconsumer%2Brebalances&data=02%7C01%7C%7C9b12ec4ce9ae4454db8a08d65f3a4862%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636801101252994092&sdata=T4i7L1i0nIeHrrjTeLOOgYKsfzfNEMGDhTazvBEZbXw%3D&reserved=0 > > > > > > design is ready for vote. Feel free to add your comment on the > > discussion > > > thread or here. > > > > > > Thanks for your time! > > > > > > Boyang > > > ________________________________ > > > From: Boyang Chen <bche...@outlook.com> > > > Sent: Friday, November 9, 2018 6:35 AM > > > To: dev@kafka.apache.org > > > Subject: [VOTE] KIP-345: Introduce static membership protocol > to > > reduce > > > consumer rebalances > > > > > > Hey all, > > > > > > > > > thanks so much for all the inputs on KIP-345 so far. The > > original proposal > > > has enhanced a lot with your help. To make sure the > > implementation go > > > smoothly without back and forth, I would like to start a vote > on > > the final > > > design agreement now: > > > > > > > https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwiki.apache.org%2Fconfluence%2Fdisplay%2FKAFKA%2FKIP-&data=02%7C01%7C%7C9b12ec4ce9ae4454db8a08d65f3a4862%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636801101252994092&sdata=g4%2BMXKpkiQLZXg5HJWfJhw1kc1PbDNwyiX9zkREVqGE%3D&reserved=0 > < > > > > > > https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwiki.apache.org%2Fconfluence%2Fdisplay%2FKAFKA%2FKIP-345%253A%2BIntroduce%2Bstatic%2Bmembership%2Bprotocol%2Bto%2Breduce%2Bconsumer%2Brebalances&data=02%7C01%7C%7C9b12ec4ce9ae4454db8a08d65f3a4862%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636801101252994092&sdata=T4i7L1i0nIeHrrjTeLOOgYKsfzfNEMGDhTazvBEZbXw%3D&reserved=0 > > > > > > > > > > > > > 345%3A+Introduce+static+membership+protocol+to+reduce+consumer+rebalances< > > > > > > https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwiki.apache.org%2Fconfluence%2Fdisplay%2FKAFKA%2FKIP-345%253A%2BIntroduce%2Bstatic%2Bmembership%2Bprotocol%2Bto%2Breduce%2Bconsumer%2Brebalances&data=02%7C01%7C%7C9b12ec4ce9ae4454db8a08d65f3a4862%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636801101252994092&sdata=T4i7L1i0nIeHrrjTeLOOgYKsfzfNEMGDhTazvBEZbXw%3D&reserved=0 > > > > > > > > > > KIP-345: Introduce static membership protocol to reduce ...< > > > > > > https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwiki.apache.org%2Fconfluence%2Fdisplay%2FKAFKA%2FKIP-345%253A%2BIntroduce%2Bstatic%2Bmembership%2Bprotocol%2Bto%2Breduce%2Bconsumer%2Brebalances&data=02%7C01%7C%7C9b12ec4ce9ae4454db8a08d65f3a4862%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636801101252994092&sdata=T4i7L1i0nIeHrrjTeLOOgYKsfzfNEMGDhTazvBEZbXw%3D&reserved=0 > > > > > > > cwiki.apache.org > > > For stateful applications, one of the biggest performance > > bottleneck is > > > the state shuffling. In Kafka consumer, there is a concept > called > > > "rebalance" which means that for given M partitions and N > > consumers in one > > > consumer group, Kafka will try to balance the load between > > consumers and > > > ideally have ... > > > > > > > > > Let me know if you have any questions. > > > > > > > > > Best, > > > > > > Boyang > > > > > > > > > > -- > > -- Guozhang > > > > > > > > > > > > -- > -Regards, > Mayuresh R. Gharat > (862) 250-7125 > -- Best, Stanislav
