Re: [ceph-users] Increase queue_depth in KVM

2018-07-13 Thread Damian Dabrowski
Konstantin, Thanks for explanation. But unfortunately, upgrading qemu is nearly impossible in my case. So is there something else I can do, or I have to agree with fact that write IOPS had to be 8x smaller inside KVM rather than outside KVM? :| pt., 13 lip 2018 o 04:22 Konstantin Shalygin napisa

Re: [ceph-users] Increase queue_depth in KVM

2018-07-12 Thread Damian Dabrowski
tside KVM? :/ wt., 26 cze 2018 o 15:19 Steffen Winther Sørensen napisał(a): > > > > On 26 Jun 2018, at 14.04, Damian Dabrowski wrote: > > > > Hi Stefan, thanks for reply. > > > > Unfortunately it didn't work. > > > > disk config: >

Re: [ceph-users] Increase queue_depth in KVM

2018-06-26 Thread Damian Dabrowski
utside KVM) Maybe do You have any idea how to deal with it? wt., 26 cze 2018 o 09:37 Stefan Kooman napisał(a): > Quoting Damian Dabrowski (scoot...@gmail.com): > > Hello, > > > > When I mount rbd image with -o queue_depth=1024 I can see much > improvement, > > generally

[ceph-users] Increase queue_depth in KVM

2018-06-25 Thread Damian Dabrowski
Hello, When I mount rbd image with -o queue_depth=1024 I can see much improvement, generally on writes(random write improvement from 3k IOPS on standard queue_depth to 24k IOPS on queue_depth=1024). But is there any way to attach rbd disk to KVM instance with custom queue_depth? I can't find any

Re: [ceph-users] Ceph recovery kill VM's even with the smallest priority

2018-04-07 Thread Damian Dabrowski
ou. Even > at that, nobackfill is most likely what you need and norecover is still > probably not helpful. > > On Wed, Apr 4, 2018, 6:59 PM Gregory Farnum wrote: > >> On Thu, Mar 29, 2018 at 3:17 PM Damian Dabrowski >> wrote: >> >>> Greg, thanks for Your re

Re: [ceph-users] Use trimfs on already mounted RBD image

2018-04-05 Thread Damian Dabrowski
Ok, thanks for Your reply. 2018-04-05 8:15 GMT+02:00 Wido den Hollander : > > > On 04/04/2018 07:30 PM, Damian Dabrowski wrote: > > Hello, > > > > I wonder if it is any way to run `trimfs` on rbd image which is > > currently used by the KVM process? (when I d

[ceph-users] Use trimfs on already mounted RBD image

2018-04-04 Thread Damian Dabrowski
Hello, I wonder if it is any way to run `trimfs` on rbd image which is currently used by the KVM process? (when I don't have access to VM) I know that I can do this by qemu-guest-agent but not all VMs have it installed. I can't use rbdmap too, because most images don't have distributed filesyste

Re: [ceph-users] Ceph recovery kill VM's even with the smallest priority

2018-03-29 Thread Damian Dabrowski
+degraded recovery io 191 MB/s, 26 objects/s client io 100654 kB/s rd, 184 MB/s wr, 6303 op/s 2018-03-29 18:22 GMT+02:00 Gregory Farnum : > > On Thu, Mar 29, 2018 at 7:27 AM Damian Dabrowski wrote: >> >> Hello, >> >> Few days ago I had very strange situation. >&

[ceph-users] Ceph recovery kill VM's even with the smallest priority

2018-03-29 Thread Damian Dabrowski
Hello, Few days ago I had very strange situation. I had to turn off few OSDs for a while. So I've set flags:noout, nobackfill, norecover and then turned off selected OSDs. All was ok, but when I started these OSDs again all VMs went down due to recovery process(even when recovery priority was ver