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Posted to user@cassandra.apache.org by Donald Smith <Do...@audiencescience.com> on 2014/09/23 19:31:46 UTC

Is there harm from having all the nodes in the seed list?

Is there any harm from having all the nodes listed in the seeds list in cassandra.yaml?

Donald A. Smith | Senior Software Engineer
P: 425.201.3900 x 3866
C: (206) 819-5965
F: (646) 443-2333
donalds@AudienceScience.com<ma...@AudienceScience.com>

[AudienceScience]

Re: Is there harm from having all the nodes in the seed list?

Posted by Robert Coli <rc...@eventbrite.com>.

On Tue, Sep 23, 2014 at 10:31 AM, Donald Smith <
Donald.Smith@audiencescience.com> wrote:

>  Is there any harm from having all the nodes listed in the seeds list in
> cassandra.yaml?
>

Yes, seed nodes cannot bootstrap.

https://issues.apache.org/jira/browse/CASSANDRA-5836

See comments there for details on how this actually doesn't make any sense.

The "correct" solution is almost certainly to have a dynamic seed provider,
which is why DSE and Priam both do that. But in practice it mostly doesn't
matter except in the annoying yet common CASSANDRA-5836 case.

=Rob

Re: Is there harm from having all the nodes in the seed list?

Posted by DuyHai Doan <do...@gmail.com>.

Well, having all nodes in the seed list does not compromise any correctness
of gossip protocol. However there will be extra network traffic when nodes
are starting because it will ping all nodes for topology discovery, AFAIK

On Tue, Sep 23, 2014 at 7:31 PM, Donald Smith <
Donald.Smith@audiencescience.com> wrote:

>  Is there any harm from having all the nodes listed in the seeds list in
> cassandra.yaml?
>
>
>
> *Donald A. Smith* | Senior Software Engineer
> P: 425.201.3900 x 3866
> C: (206) 819-5965
> F: (646) 443-2333
> donalds@AudienceScience.com
>
>
> [image: AudienceScience]
>
>
>