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From Eric Evans <john.eric.ev...@gmail.com>
Subject Re: node decommission throttled
Date Thu, 08 Dec 2016 17:10:19 GMT
On Thu, Dec 8, 2016 at 3:27 AM, Aleksandr Ivanov <alekiv@gmail.com> wrote:
> On sending side no high CPU/IO/etc utilization.
> But on receiving node I see that one "STREAM-IN" thread takes 100% CPU and
> it just doesn't scale by design since "Each stream is a single thread"
> (http://www.mail-archive.com/user@cassandra.apache.org/msg42095.html)

Right, that is your bottleneck.  There is no per-host concurrency; I'm
afraid there is not much you can do about it at the moment.

https://issues.apache.org/jira/browse/CASSANDRA-4663 might be relevant

Cheers,

-- 
Eric Evans
john.eric.evans@gmail.com

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