Re: page allocation failures on osd nodes

2013-01-29 Thread Andrey Korolyov
On Mon, Jan 28, 2013 at 8:55 PM, Andrey Korolyov and...@xdel.ru wrote: On Mon, Jan 28, 2013 at 5:48 PM, Sam Lang sam.l...@inktank.com wrote: On Sun, Jan 27, 2013 at 2:52 PM, Andrey Korolyov and...@xdel.ru wrote: Ahem. once on almost empty node same trace produced by qemu process(which was

Re: page allocation failures on osd nodes

2013-01-29 Thread Sam Lang
On Tue, Jan 29, 2013 at 2:21 PM, Andrey Korolyov and...@xdel.ru wrote: On Mon, Jan 28, 2013 at 8:55 PM, Andrey Korolyov and...@xdel.ru wrote: On Mon, Jan 28, 2013 at 5:48 PM, Sam Lang sam.l...@inktank.com wrote: On Sun, Jan 27, 2013 at 2:52 PM, Andrey Korolyov and...@xdel.ru wrote: Ahem. once

Re: page allocation failures on osd nodes

2013-01-28 Thread Sam Lang
On Sun, Jan 27, 2013 at 2:52 PM, Andrey Korolyov and...@xdel.ru wrote: Ahem. once on almost empty node same trace produced by qemu process(which was actually pinned to the specific numa node), so seems that`s generally is a some scheduler/mm bug, not directly related to the osd processes. In

Re: page allocation failures on osd nodes

2013-01-28 Thread Andrey Korolyov
On Mon, Jan 28, 2013 at 5:48 PM, Sam Lang sam.l...@inktank.com wrote: On Sun, Jan 27, 2013 at 2:52 PM, Andrey Korolyov and...@xdel.ru wrote: Ahem. once on almost empty node same trace produced by qemu process(which was actually pinned to the specific numa node), so seems that`s generally is a

Re: page allocation failures on osd nodes

2013-01-27 Thread Andrey Korolyov
On Sat, Jan 26, 2013 at 12:41 PM, Andrey Korolyov and...@xdel.ru wrote: On Sat, Jan 26, 2013 at 3:40 AM, Sam Lang sam.l...@inktank.com wrote: On Fri, Jan 25, 2013 at 10:07 AM, Andrey Korolyov and...@xdel.ru wrote: Sorry, I have written too less yesterday because of being sleepy. That`s

Re: page allocation failures on osd nodes

2013-01-26 Thread Andrey Korolyov
On Sat, Jan 26, 2013 at 3:40 AM, Sam Lang sam.l...@inktank.com wrote: On Fri, Jan 25, 2013 at 10:07 AM, Andrey Korolyov and...@xdel.ru wrote: Sorry, I have written too less yesterday because of being sleepy. That`s obviously a cache pressure since dropping caches resulted in disappearance of

Re: page allocation failures on osd nodes

2013-01-25 Thread Sam Lang
On Fri, Jan 25, 2013 at 10:07 AM, Andrey Korolyov and...@xdel.ru wrote: Sorry, I have written too less yesterday because of being sleepy. That`s obviously a cache pressure since dropping caches resulted in disappearance of this errors for a long period. I`m not very familiar with kernel memory