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https://issues.apache.org/jira/browse/CASSANDRA-3881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13216604#comment-13216604
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Peter Schuller commented on CASSANDRA-3881:
-------------------------------------------

Even with post-CASSANDRA-3831 code, the need here is great. When bootstrapping 
a new node into a pre-existing cluster of 200+ nodes, the time it takes being 
CPU bound in gossip stage on the node being bootstrapped, is so large that 
we're close to seeing it initiate the bootstrap streaming process before being 
done CPU spinning i gossip stage.

We're increasing the bootstrap wait delay for now to work around this.
                
> reduce computational complexity of processing topology changes
> --------------------------------------------------------------
>
>                 Key: CASSANDRA-3881
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3881
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Peter Schuller
>            Assignee: Peter Schuller
>
> This constitutes follow-up work from CASSANDRA-3831 where a partial 
> improvement was committed, but the fundamental issue was not fixed. The 
> maximum "practical" cluster size was significantly improved, but further work 
> is expected to be necessary as cluster sizes grow.

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