> -Original Message-
> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
> Jacek Jarosiewicz
> Sent: 20 August 2015 07:31
> To: Nick Fisk ; ceph-us...@ceph.com
> Subject: Re: [ceph-users] requests are blocked - problem
>
> On 08/19/2015 0
Hello,
On Thu, 20 Aug 2015 08:25:16 +0200 Jacek Jarosiewicz wrote:
> On 08/20/2015 03:07 AM, Christian Balzer wrote:
> > For a realistic comparison with your current setup, a total rebuild
> > would be in order. Provided your cluster is testing only at this point.
> >
> > Given your current HW,
On 08/19/2015 03:41 PM, Nick Fisk wrote:
Although you may get some benefit from tweaking parameters, I suspect you are
nearer the performance ceiling for the current implementation of the tiering
code. Could you post all the variables you set for the tiering including
target_max_bytes and the
On 08/20/2015 03:07 AM, Christian Balzer wrote:
For a realistic comparison with your current setup, a total rebuild would
be in order. Provided your cluster is testing only at this point.
Given your current HW, that means the same 2-3 HDDs per storage node and 1
SSD as journal.
What exact maker
Hello,
On Wed, 19 Aug 2015 15:27:29 +0200 Jacek Jarosiewicz wrote:
> Hi,
>
> On 08/19/2015 11:01 AM, Christian Balzer wrote:
> >
> > Hello,
> >
> > That's a pretty small cluster all things considered, so your rather
> > intensive test setup is likely to run into any or all of the following
> >
> -Original Message-
> From: Jacek Jarosiewicz [mailto:jjarosiew...@supermedia.pl]
> Sent: 19 August 2015 14:28
> To: Nick Fisk ; ceph-us...@ceph.com
> Subject: Re: [ceph-users] requests are blocked - problem
>
> On 08/19/2015 10:58 AM, Nick Fisk wrote:
>
On 08/19/2015 10:58 AM, Nick Fisk wrote:
-Original Message-
From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
Jacek Jarosiewicz
Sent: 19 August 2015 09:29
To: ceph-us...@ceph.com
Subject: [ceph-users] requests are blocked - problem
I would suggest running the fio
Hi,
On 08/19/2015 11:01 AM, Christian Balzer wrote:
Hello,
That's a pretty small cluster all things considered, so your rather
intensive test setup is likely to run into any or all of the following
issues:
1) The amount of data you're moving around is going cause a lot of
promotions from and
Hello,
That's a pretty small cluster all things considered, so your rather
intensive test setup is likely to run into any or all of the following
issues:
1) The amount of data you're moving around is going cause a lot of
promotions from and to the cache tier. This is expensive and slow.
2) EC co
> -Original Message-
> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
> Jacek Jarosiewicz
> Sent: 19 August 2015 09:29
> To: ceph-us...@ceph.com
> Subject: [ceph-users] requests are blocked - problem
>
> Hi,
>
> Our setup is this:
>
> 4 x OSD nodes:
> E5-1630 CP
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