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https://issues.apache.org/jira/browse/CASSANDRA-1361?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis resolved CASSANDRA-1361.
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Resolution: Not A Problem
the important part of gossip is "pick a random node, send what I know about the
cluster to it." seeds are only special cased at all to make sure that we don't
end up with a partitioned cluster.
in other words, I can't think of a reason you should need to change seeds at
runtime.
> Introduce ability to change seed addresses on a running node
> ------------------------------------------------------------
>
> Key: CASSANDRA-1361
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1361
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Reporter: Valentino Volonghi
>
> Since seed nodes are not only used for bootstrap but also for gossiping it
> would be really useful to be able to replace seed addresses on running nodes
> without restarting them since at the moment you can only change seed nodes by
> changing configuration file and then restarting cassandra.
> My usecase is to be able to replace failed seed nodes in cassandra without
> having to proceed to a rolling restart of the cluster. And also to be able to
> start X nodes that initially might be independent but then would all join an
> existing ring by changing their seeds.
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