Ceph

12/18/2013

12:31 PM rbd Bug #6480: librbd crashed qemu-system-x86_64

Igor Lukyanov wrote:
> They say there was a bug in malloc in libc 2.15 (we have the same major version)
>
> https... Igor Lukyanov

12:30 PM rbd Bug #6480: librbd crashed qemu-system-x86_64

They say there was a bug in malloc in libc 2.15 (we have the same major version)
https://jira.mongodb.org/browse/S... Igor Lukyanov

12:21 PM rbd Bug #6480: librbd crashed qemu-system-x86_64

In addition to comment posted by Andrey:
The disk workload of the VM was very peaky: http://imgur.com/SLFdJvv
VM cr... Igor Lukyanov

08/19/2013

09:53 AM Ceph Fix #5844: osd: snaptrimmer should throttle itself

(09:57:41 AM) sjust: xdeller: right, the only way to fix that would be to increase OSDMap propogation speed
Regard... Igor Lukyanov

08/13/2013

08:31 AM Ceph Fix #5844: osd: snaptrimmer should throttle itself

We've scrutinized influence of snapshotting on disk IO and got some curious results. From our point of view, snapshot... Igor Lukyanov

05/29/2013

10:40 AM Ceph Bug #5084: osd: slow peering after osd restart (bobtail)

We wrote a test that sequentially reads 1M blocks spreaded by 64Mb offsets (i.e. from different placement groups) an... Igor Lukyanov

05/27/2013

10:25 AM Ceph Bug #5084: osd: slow peering after osd restart (bobtail)

> As we can assume client ops are waiting for new OSD map that is issued only after peering finishes.
> It seems tha... Igor Lukyanov

05/23/2013

01:13 PM Ceph Bug #5084: osd: slow peering after osd restart (bobtail)

We repeat the same bug on both Bobtail and Cuttlefish deployments just by calling osd in/out/reweight.
Peering compl... Igor Lukyanov