No, decommission does not decrease the load, as it only streams the data
to other nodes, but doesn't remove them locally. However, decommission
also shouldn't increase the load either. I can't offer an explanation
for the load increase in your case.
On 26/09/2022 15:03, Marc Hoppins wrote:
Hu
On Thu, Dec 8, 2016 at 3:27 AM, Aleksandr Ivanov 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@cassan
Nope, no MVs
On Thu, Dec 8, 2016 at 11:31 AM, Benjamin Roth
wrote:
> Just an educated guess: you have materialized Views? They are known to
> Stream very slow
>
> Am 08.12.2016 10:28 schrieb "Aleksandr Ivanov" :
>
>> Yes, I use compression.
>> Tried without and it gave ~15% increase in speed, bu
Just an educated guess: you have materialized Views? They are known to
Stream very slow
Am 08.12.2016 10:28 schrieb "Aleksandr Ivanov" :
> Yes, I use compression.
> Tried without and it gave ~15% increase in speed, but is still too low
> (~35Mbps)
>
> On sending side no high CPU/IO/etc utilizatio
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
Yes, I use compression.
Tried without and it gave ~15% increase in speed, but is still too low
(~35Mbps)
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"
Maybe your System cannot Stream faster. Is your cpu or hd/ssd fully
utilized?
Am 07.12.2016 16:07 schrieb "Eric Evans" :
> On Tue, Dec 6, 2016 at 9:54 AM, Aleksandr Ivanov wrote:
> > I'm trying to decommission one C* node from 6 nodes cluster and see that
> > outbound network traffic on this nod
On Tue, Dec 6, 2016 at 9:54 AM, Aleksandr Ivanov 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 se
