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From Aleksandr Ivanov <ale...@gmail.com>
Subject Re: node decommission throttled
Date Thu, 08 Dec 2016 09:29:53 GMT
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)


Maybe your System cannot Stream faster. Is your cpu or hd/ssd fully
> utilized?
>
> Am 07.12.2016 16:07 schrieb "Eric Evans" <john.eric.evans@gmail.com>:
>
>> On Tue, Dec 6, 2016 at 9:54 AM, Aleksandr Ivanov <alekiv@gmail.com>
>> wrote:
>> > I'm trying to decommission one C* node from 6 nodes cluster and see that
>> > outbound network traffic on this node doesn't go over ~30Mb/s.
>> > Looks like it is throttled somewhere in C*
>>
>> Do you use compression?  Try taking a thread dump and see what the
>> utilization of the sending threads are.
>>
>>
>> --
>> Eric Evans
>> john.eric.evans@gmail.com
>>
>

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