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https://issues.apache.org/jira/browse/CASSANDRA-4791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13473691#comment-13473691
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Eran Chinthaka Withana commented on CASSANDRA-4791:
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[~jbellis], from my experience I have seen the bootstrapping node reading from 
the nodes from a different data centers which are about 80ms away. And I don't 
think those nodes should be considered "closest". The snitch, which I believe 
comes from cassandra-topology.properties contains correct information about the 
topology of the cluster. 

I looked at CASSANDRA-2434 also and it says "even if you don't care about the 
consistency issues, I don't think there is currently a way to bootstrap from 
local nodes only." but not sure whether this got implemented in Cassandra 1.0.x 
versions. 
                
> When a node bootstrap in a multi-datacenter environment it should try to get 
> data only from local nodes
> -------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-4791
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4791
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Eran Chinthaka Withana
>
> When a node bootstraps, in a multi-datacenter environment, currently it is 
> streaming data from any node available. But, to cut down the intra datacenter 
> traffic, it should first try to stream data within the same datacenter or 
> there should be a flag to explicitly limit it to stream data from its own 
> data center.

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