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Posted to users@kafka.apache.org by Thomas Becker <to...@Tivo.com> on 2016/12/05 15:58:11 UTC

Looking for guidance on setting ZK session timeouts in AWS

I know several folks are running Kafka in AWS, can someone give me an
idea of what sort of values you're using for ZK session timeouts?

--


    Tommy Becker

    Senior Software Engineer

    O +1 919.460.4747

    tivo.com


________________________________

This email and any attachments may contain confidential and privileged material for the sole use of the intended recipient. Any review, copying, or distribution of this email (or any attachments) by others is prohibited. If you are not the intended recipient, please contact the sender immediately and permanently delete this email and any attachments. No employee or agent of TiVo Inc. is authorized to conclude any binding agreement on behalf of TiVo Inc. by email. Binding agreements with TiVo Inc. may only be made by a signed written agreement.

Re: Looking for guidance on setting ZK session timeouts in AWS

Posted by Radek Gruchalski <ra...@gruchalski.com>.
Thomas,

I’m always running ZK separate from Kafka. Mind you, no multi-region, just
multi-AZ.
I have never had issues with default settings. It’s possible that once your
cluster gets bigger, you may have to increase the timeouts. Never had a
problem with cluster size of ~20 brokers.
Happy to hear from others though.

–
Best regards,
Radek Gruchalski
radek@gruchalski.com


On December 5, 2016 at 5:27:05 PM, Thomas Becker (tobecker@tivo.com) wrote:

Thanks for the reply, Radek. So you're running with 6s then? I'm
surprised, I thought people were generally increasing this value when
running in EC2. Can I ask if you folks are running ZK on the same
instances as your Kafka brokers? We do, and yes we know it's somewhat
frowned upon.

-Tommy
On Mon, 2016-12-05 at 11:00 -0500, Radek Gruchalski wrote:
> Hi Thomas,
>
> Defaults are good for sure. Never had a problem with default timeouts
> in AWS.
> –
> Best regards,
> Radek Gruchalski
> radek@gruchalski.com
>
>
> On December 5, 2016 at 4:58:41 PM, Thomas Becker (tobecker@tivo.com)
> wrote:
> > I know several folks are running Kafka in AWS, can someone give me
> > an
> > idea of what sort of values you're using for ZK session timeouts?
> >
> > --
> >
> >
> > Tommy Becker
> >
> > Senior Software Engineer
> >
> > O +1 919.460.4747
> >
> > tivo.com
> >
> >
> > ________________________________
> >
> > This email and any attachments may contain confidential and
> > privileged material for the sole use of the intended recipient. Any
> > review, copying, or distribution of this email (or any attachments)
> > by others is prohibited. If you are not the intended recipient,
> > please contact the sender immediately and permanently delete this
> > email and any attachments. No employee or agent of TiVo Inc. is
> > authorized to conclude any binding agreement on behalf of TiVo Inc.
> > by email. Binding agreements with TiVo Inc. may only be made by a
> > signed written agreement.
-- 


Tommy Becker

Senior Software Engineer

O +1 919.460.4747

tivo.com


________________________________

This email and any attachments may contain confidential and privileged
material for the sole use of the intended recipient. Any review, copying,
or distribution of this email (or any attachments) by others is prohibited.
If you are not the intended recipient, please contact the sender
immediately and permanently delete this email and any attachments. No
employee or agent of TiVo Inc. is authorized to conclude any binding
agreement on behalf of TiVo Inc. by email. Binding agreements with TiVo
Inc. may only be made by a signed written agreement.

Re: Looking for guidance on setting ZK session timeouts in AWS

Posted by Thomas Becker <to...@Tivo.com>.
Thanks for the reply, Radek. So you're running with 6s then?  I'm
surprised, I thought people were generally increasing this value when
running in EC2. Can I ask if you folks are running ZK on the same
instances as your Kafka brokers? We do, and yes we know it's somewhat
frowned upon.

-Tommy
On Mon, 2016-12-05 at 11:00 -0500, Radek Gruchalski wrote:
> Hi Thomas,
>
> Defaults are good for sure. Never had a problem with default timeouts
> in AWS.
> –
> Best regards,
> Radek Gruchalski
> radek@gruchalski.com
>
>
> On December 5, 2016 at 4:58:41 PM, Thomas Becker (tobecker@tivo.com)
> wrote:
> > I know several folks are running Kafka in AWS, can someone give me
> > an
> > idea of what sort of values you're using for ZK session timeouts?
> >
> > --
> >
> >
> > Tommy Becker
> >
> > Senior Software Engineer
> >
> > O +1 919.460.4747
> >
> > tivo.com
> >
> >
> > ________________________________
> >
> > This email and any attachments may contain confidential and
> > privileged material for the sole use of the intended recipient. Any
> > review, copying, or distribution of this email (or any attachments)
> > by others is prohibited. If you are not the intended recipient,
> > please contact the sender immediately and permanently delete this
> > email and any attachments. No employee or agent of TiVo Inc. is
> > authorized to conclude any binding agreement on behalf of TiVo Inc.
> > by email. Binding agreements with TiVo Inc. may only be made by a
> > signed written agreement.
--


    Tommy Becker

    Senior Software Engineer

    O +1 919.460.4747

    tivo.com


________________________________

This email and any attachments may contain confidential and privileged material for the sole use of the intended recipient. Any review, copying, or distribution of this email (or any attachments) by others is prohibited. If you are not the intended recipient, please contact the sender immediately and permanently delete this email and any attachments. No employee or agent of TiVo Inc. is authorized to conclude any binding agreement on behalf of TiVo Inc. by email. Binding agreements with TiVo Inc. may only be made by a signed written agreement.

Re: Looking for guidance on setting ZK session timeouts in AWS

Posted by Radek Gruchalski <ra...@gruchalski.com>.
Hi Thomas,

Defaults are good for sure. Never had a problem with default timeouts in
AWS.

–
Best regards,
Radek Gruchalski
radek@gruchalski.com


On December 5, 2016 at 4:58:41 PM, Thomas Becker (tobecker@tivo.com) wrote:

I know several folks are running Kafka in AWS, can someone give me an
idea of what sort of values you're using for ZK session timeouts?

-- 


Tommy Becker

Senior Software Engineer

O +1 919.460.4747

tivo.com


________________________________

This email and any attachments may contain confidential and privileged
material for the sole use of the intended recipient. Any review, copying,
or distribution of this email (or any attachments) by others is prohibited.
If you are not the intended recipient, please contact the sender
immediately and permanently delete this email and any attachments. No
employee or agent of TiVo Inc. is authorized to conclude any binding
agreement on behalf of TiVo Inc. by email. Binding agreements with TiVo
Inc. may only be made by a signed written agreement.