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From julien Campan <>
Subject Re: quick question on seed nodes configuration
Date Mon, 24 Jun 2013 14:43:56 GMT
Hi ,

The seeds are only used when a node appears in the cluster. At this moment
it chooses a seed (in the same dc) in order to have some information.

So, the most secure way is to write all your other nodes as seed, but in
fact you need only one up.
if you think that you will never have 3 node down at the same time , you
can put only three nodes.

Julien Campan

2013/6/24 Hiller, Dean <>

> For ease of use, we actually had a single cassandra.yaml deployed to every
> machine and a script that swapped out the token and listen address.  I had
> seed nodes ip1,ip2,ip3 as the seeds but what I didn't realize was then that
> these nodes had themselves as seeds.  I am assuming that should never be
> done, is that correct.  I really should deploy ip1, ip2, ip3 on all nodes
> and then for nodes 1, 2, and 3, I should do something like
> ip1 will have ip2, ip3, ip4
> ip2 will have ip1, ip3, ip4
> Etc. etc.
> QUESTION: Would it be ok if I just configured every node to be the 3 ip's
> after it like this instead as well
> ip1 would have ip2, ip3, ip4
> ip2 would have ip3, ip4, ip5
> ip3 would have ip4, ip5, ip6
> ip4 would have ip5, ip6, ip1
> Is this okay for seed node configuration?
> Thanks,
> Dean

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