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Posted to user@cassandra.apache.org by Jean Carlo <je...@gmail.com> on 2019/03/05 13:12:52 UTC
About using Ec2MultiRegionSnitch
Hello everyone, I am preparing a cluster single dc in AWS. For the moment
there is not need to have a Multi DC cluster but I would like to avoid a
Snitch migration in the future. I would like to know if
Ec2MultiRegionSnitch works also for cluster single DC. Or The migration
Ec2Snitch to Ec2MultiRegionSnitch is inevitable
Thank you
Jean Carlo
"The best way to predict the future is to invent it" Alan Kay
Re: About using Ec2MultiRegionSnitch
Posted by Oleksandr Shulgin <ol...@zalando.de>.
On Tue, Mar 5, 2019 at 2:24 PM Jeff Jirsa <jj...@gmail.com> wrote:
> Ec2 multi should work fine in one region, but consider using
> GossipingPropertyFileSnitch if there’s even a chance you’ll want something
> other than AWS regions as dc names - multicloud, hybrid, analytics DCs, etc
>
For the record, DC names can be adjusted separately by using
cassandra-rackdc.properties file, without going away from EC2 snitches.
Which doesn't give you full control, but is good enough for setting up
analytical DC or for cross-DC migrations while staying within the same AWS
region.
--
Alex
Re: About using Ec2MultiRegionSnitch
Posted by Jean Carlo <je...@gmail.com>.
Awesome
Thank you very much
Cheers
Jean Carlo
"The best way to predict the future is to invent it" Alan Kay
On Tue, Mar 5, 2019 at 2:47 PM Jeff Jirsa <jj...@gmail.com> wrote:
>
>
>
> > On Mar 5, 2019, at 5:32 AM, Jean Carlo <je...@gmail.com>
> wrote:
> >
> > Hello Jeff, thank you for the answer. But what will be the advantage of
> GossipingPropertyFileSnitch over Ec2MultiRegionSnitch exactly ? The
> possibility to name the DCs ?
>
>
> Yes
>
> And if you ever move out of aws you won’t have any problems
>
> >
> > And another question, are you telling me that
> GossipingPropertyFileSnitch works fine in AWS and there is no need of
> Ec2Snitch?
>
> Yea, just set the dc name to the region and the rack to the AZ in the
> property file
>
>
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Re: About using Ec2MultiRegionSnitch
Posted by Jeff Jirsa <jj...@gmail.com>.
> On Mar 5, 2019, at 5:32 AM, Jean Carlo <je...@gmail.com> wrote:
>
> Hello Jeff, thank you for the answer. But what will be the advantage of GossipingPropertyFileSnitch over Ec2MultiRegionSnitch exactly ? The possibility to name the DCs ?
Yes
And if you ever move out of aws you won’t have any problems
>
> And another question, are you telling me that GossipingPropertyFileSnitch works fine in AWS and there is no need of Ec2Snitch?
Yea, just set the dc name to the region and the rack to the AZ in the property file
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Re: About using Ec2MultiRegionSnitch
Posted by Jean Carlo <je...@gmail.com>.
Hello Jeff, thank you for the answer. But what will be the advantage of
GossipingPropertyFileSnitch over Ec2MultiRegionSnitch exactly ? The
possibility to name the DCs ?
And another question, are you telling me that GossipingPropertyFileSnitch
works fine in AWS and there is no need of Ec2Snitch?
Thank you ?
Jean Carlo
"The best way to predict the future is to invent it" Alan Kay
On Tue, Mar 5, 2019 at 2:24 PM Jeff Jirsa <jj...@gmail.com> wrote:
> Ec2 multi should work fine in one region, but consider using
> GossipingPropertyFileSnitch if there’s even a chance you’ll want something
> other than AWS regions as dc names - multicloud, hybrid, analytics DCs, etc
>
>
>
> --
> Jeff Jirsa
>
>
> On Mar 5, 2019, at 5:12 AM, Jean Carlo <je...@gmail.com> wrote:
>
> Hello everyone, I am preparing a cluster single dc in AWS. For the moment
> there is not need to have a Multi DC cluster but I would like to avoid a
> Snitch migration in the future. I would like to know if
> Ec2MultiRegionSnitch works also for cluster single DC. Or The migration
> Ec2Snitch to Ec2MultiRegionSnitch is inevitable
>
> Thank you
>
> Jean Carlo
>
> "The best way to predict the future is to invent it" Alan Kay
>
>
Re: About using Ec2MultiRegionSnitch
Posted by Jeff Jirsa <jj...@gmail.com>.
Ec2 multi should work fine in one region, but consider using GossipingPropertyFileSnitch if there’s even a chance you’ll want something other than AWS regions as dc names - multicloud, hybrid, analytics DCs, etc
--
Jeff Jirsa
> On Mar 5, 2019, at 5:12 AM, Jean Carlo <je...@gmail.com> wrote:
>
> Hello everyone, I am preparing a cluster single dc in AWS. For the moment there is not need to have a Multi DC cluster but I would like to avoid a Snitch migration in the future. I would like to know if Ec2MultiRegionSnitch works also for cluster single DC. Or The migration Ec2Snitch to Ec2MultiRegionSnitch is inevitable
>
> Thank you
>
> Jean Carlo
>
> "The best way to predict the future is to invent it" Alan Kay