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https://issues.apache.org/jira/browse/CASSANDRA-13851?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17573088#comment-17573088
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Daniel Cranford commented on CASSANDRA-13851:
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[~brandon.williams] ticket added. cf CASSANDRA-17786
> Allow existing nodes to use all peers in shadow round
> -----------------------------------------------------
>
> Key: CASSANDRA-13851
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13851
> Project: Cassandra
> Issue Type: Bug
> Components: Local/Startup and Shutdown
> Reporter: Kurt Greaves
> Assignee: Kurt Greaves
> Priority: Normal
> Fix For: 3.11.3, 4.0-alpha1, 4.0
>
>
> In CASSANDRA-10134 we made collision checks necessary on every startup. A
> side-effect was introduced that then requires a nodes seeds to be contacted
> on every startup. Prior to this change an existing node could start up
> regardless whether it could contact a seed node or not (because
> checkForEndpointCollision() was only called for bootstrapping nodes).
> Now if a nodes seeds are removed/deleted/fail it will no longer be able to
> start up until live seeds are configured (or itself is made a seed), even
> though it already knows about the rest of the ring. This is inconvenient for
> operators and has the potential to cause some nasty surprises and increase
> downtime.
> One solution would be to use all a nodes existing peers as seeds in the
> shadow round. Not a Gossip guru though so not sure of implications.
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