Re: node decommission throttled

2016-12-08 Thread Eric Evans
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" >

Re: node decommission throttled

2016-12-08 Thread Aleksandr Ivanov
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

Re: node decommission throttled

2016-12-08 Thread Benjamin Roth
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

Re: node decommission throttled

2016-12-08 Thread Aleksandr Ivanov
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

Re: node decommission throttled

2016-12-08 Thread 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 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

Re: node decommission throttled

2016-12-07 Thread Benjamin Roth
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

Re: node decommission throttled

2016-12-07 Thread 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 node doesn't go over ~30Mb/s. > Looks like it is throttled somewhere in C* Do you use compression? Try taking a