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From Michael Kjellman <mkjell...@barracuda.com>
Subject Re: what happens while node is bootstrapping?
Date Tue, 16 Oct 2012 17:15:04 GMT
Correct.

Also, there is a new feature in 1.1+ that lets you play with live traffic
on new nodes before they actually join the ring

http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-1-live-traffic-sa
mpling

On 10/16/12 9:42 AM, "Andrey Ilinykh" <ailinykh@gmail.com> wrote:

>>
>>
>> No.  The bootstrapping node will writes for its new range while
>> bootstrapping as consistency optimization (more or less), but does not
>> contribute to the replication factor or consistency level; all of the
>> original replicas for that range still receive writes, serve reads, and
>>are
>> the nodes that count for consistency level.  Basically, the
>>bootstrapping
>> node has no effect on the existing replicas in terms of RF or CL until
>>the
>> bootstrap completes.
>>
>I see. So, if I add new nodes to increase number of writes my cluster
>can handle I will not see any improvement until bootstrap process
>finished, which may take hours. Is it correct?
>
>Thank you,
>  Andrey


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