Hello,
On Wed, 18 Mar 2015 11:05:47 -0700 Gregory Farnum wrote:
On Wed, Mar 18, 2015 at 8:04 AM, Nick Fisk n...@fisk.me.uk wrote:
Hi Greg,
Thanks for your input and completely agree that we cannot expect
developers to fully document what impact each setting has on a
cluster,
I think this could be part of what I am seeing. I found this post from back in
2003
http://comments.gmane.org/gmane.comp.file-systems.ceph.devel/12083
Which seems to describe a work around for the behaviour to what I am seeing.
The constant small block IO I was seeing looks like it was either
On Wed, Mar 18, 2015 at 11:10 PM, Christian Balzer ch...@gol.com wrote:
Hello,
On Wed, 18 Mar 2015 11:05:47 -0700 Gregory Farnum wrote:
On Wed, Mar 18, 2015 at 8:04 AM, Nick Fisk n...@fisk.me.uk wrote:
Hi Greg,
Thanks for your input and completely agree that we cannot expect
:57
To: Christian Balzer
Cc: ceph-users@lists.ceph.com
Subject: Re: [ceph-users] Cache Tier Flush = immediate base tier journal
sync?
On Mon, Mar 16, 2015 at 4:46 PM, Christian Balzer ch...@gol.com wrote:
On Mon, 16 Mar 2015 16:09:12 -0700 Gregory Farnum wrote:
Nothing here particularly
On Wed, Mar 18, 2015 at 8:04 AM, Nick Fisk n...@fisk.me.uk wrote:
Hi Greg,
Thanks for your input and completely agree that we cannot expect developers
to fully document what impact each setting has on a cluster, particularly in
a performance related way
That said, if you or others could
On Wed, Mar 11, 2015 at 2:25 PM, Nick Fisk n...@fisk.me.uk wrote:
I’m not sure if it’s something I’m doing wrong or just experiencing an
oddity, but when my cache tier flushes dirty blocks out to the base tier, the
writes seem to hit the OSD’s straight away instead of coalescing in the
-users-boun...@lists.ceph.com] On Behalf
Of Gregory Farnum
Sent: 16 March 2015 17:33
To: Nick Fisk
Cc: ceph-users@lists.ceph.com
Subject: Re: [ceph-users] Cache Tier Flush = immediate base tier
journal sync?
On Wed, Mar 11, 2015 at 2:25 PM, Nick Fisk n...@fisk.me.uk wrote:
I’m
-Original Message-
From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
Gregory Farnum
Sent: 16 March 2015 17:33
To: Nick Fisk
Cc: ceph-users@lists.ceph.com
Subject: Re: [ceph-users] Cache Tier Flush = immediate base tier journal
sync?
On Wed, Mar 11
: 16 March 2015 17:33
To: Nick Fisk
Cc: ceph-users@lists.ceph.com
Subject: Re: [ceph-users] Cache Tier Flush = immediate base tier journal
sync?
On Wed, Mar 11, 2015 at 2:25 PM, Nick Fisk n...@fisk.me.uk wrote:
I’m not sure if it’s something I’m doing wrong or just experiencing an
oddity
I'm not sure if it's something I'm doing wrong or just experiencing an
oddity, but when my cache tier flushes dirty blocks out to the base tier,
the writes seem to hit the OSD's straight away instead of coalescing in the
journals, is this correct?
For example if I create a RBD on a standard 3 way
10 matches
Mail list logo
