t
>> is at https://github.com/ceph/ceph/pull/14597)
>> -Greg
>
>> On Tue, Feb 21, 2017 at 3:32 PM, Nick Fisk wrote:
>> > Yep sure, will try and present some figures at tomorrow’s meeting again.
>
>
>
>> > From: Samuel Just [mailto:sj...@redhat.com]
>> &g
non-blocking implementation) to that branch. Care to take it for a whirl?
> > -Sam
> > On Thu, Feb 9, 2017 at 11:36 AM, Nick Fisk wrote:
> > Building now
> > From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
> > Samuel Just
> > S
uary 2017 18:14
>
>
> To: Nick Fisk
> Cc: ceph-users@lists.ceph.com
> Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
>
>
>
> Ok, I've added explicit support for osd_snap_trim_sleep (same param, new
> non-blocking implementation) to
Yep sure, will try and present some figures at tomorrow’s meeting again.
From: Samuel Just [mailto:sj...@redhat.com]
Sent: 21 February 2017 18:14
To: Nick Fisk
Cc: ceph-users@lists.ceph.com
Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
Ok, I've added exp
@lists.ceph.com] *On Behalf
> Of *Samuel Just
> *Sent:* 09 February 2017 19:22
> *To:* Nick Fisk
> *Cc:* ceph-users@lists.ceph.com
>
> *Subject:* Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during
> sleep?
>
>
>
> Ok, https://github.com/athanatos/c
Building now
From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of Samuel
Just
Sent: 09 February 2017 19:22
To: Nick Fisk
Cc: ceph-users@lists.ceph.com
Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
Ok, https://github.com/athanatos/ceph/tree
t possibly see up
> to a 20% hit on performance, in exchange for more consistent client
> latency.
>
>
>
> *From:* Steve Taylor [mailto:steve.tay...@storagecraft.com]
> *Sent:* 07 February 2017 20:35
> *To:* n...@fisk.me.uk; ceph-users@lists.ceph.com
>
> *Subject:* RE: R
: Steve Taylor [mailto:steve.tay...@storagecraft.com]
Sent: 07 February 2017 20:35
To: n...@fisk.me.uk; ceph-users@lists.ceph.com
Subject: RE: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
Thanks, Nick.
One other data point that has come up is that nearly all of the
.@fisk.me.uk]
Sent: Tuesday, February 7, 2017 10:25 AM
To: Steve Taylor ; ceph-users@lists.ceph.com
Subject: RE: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
Hi Steve,
From what I understand, the issue is not with the queueing in Ceph, which is
correctly moving client IO to the
a trade off of peak throughput vs queue latency though.
Nick
From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of Steve
Taylor
Sent: 07 February 2017 17:01
To: ceph-users@lists.ceph.com
Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
As I
s prohibited.
From: Steve Taylor
Sent: Tuesday, February 7, 2017 9:13 AM
To: 'ceph-users@lists.ceph.com'
Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
Sorry, I lost the previous thread on this. I apologize for the resulting
incomp
Sorry, I lost the previous thread on this. I apologize for the resulting
incomplete reply.
The issue that we’re having with Jewel, as David Turner mentioned, is that we
can’t seem to throttle snap trimming sufficiently to prevent it from blocking
I/O requests. On further investigation, I encoun
I accidentally responded from the wrong email address. We will be able to build
off of master and test that.
Sent from my iPhone
On Feb 5, 2017, at 3:27 PM, Peter Maloney
mailto:peter.malo...@brockmann-consult.de>>
wrote:
On 02/03/17 19:54, David Turner wrote:
Our current solution in Hammer i
lease notify the sender and delete it, together with any
> attachments, and be advised that any dissemination or copying of this
> message is prohibited.
>
> --
>
> --
> *From:* Samuel Just [sj...@redhat.com]
> *Sent:* Thur
On 02/03/17 19:54, David Turner wrote:
> Our current solution in Hammer involves a daemon monitoring the
> cluster load and setting the osd_snap_trim_sleep accordingly between 0
> and 0.35 which does a good job of preventing IO blocking and help us
> to clear out the snap_trim_q each day. These se
variable settings throughout the day.
From: Samuel Just [sj...@redhat.com]
Sent: Friday, February 03, 2017 11:24 AM
To: David Turner
Cc: Nick Fisk; ceph-users
Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
They do seem to exist in Jewel.
>> If you are not the intended recipient of this message or received it
>> erroneously, please notify the sender and delete it, together with any
>> attachments, and be advised that any dissemination or copying of this
>> message is prohibited.
>>
>>
message
is prohibited.
From: Samuel Just [sj...@redhat.com]
Sent: Friday, February 03, 2017 11:24 AM
To: David Turner
Cc: Nick Fisk; ceph-users
Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
They do seem to exist in Jewel.
-Sam
On
...@redhat.com]
Sent: 03 February 2017 18:24
To: David Turner
Cc: Nick Fisk ; ceph-users
Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
They do seem to exist in Jewel.
-Sam
On Fri, Feb 3, 2017 at 10:12 AM, David Turner mailto:david.tur...@storagecraft.com>
ete it, together with any
> attachments, and be advised that any dissemination or copying of this
> message is prohibited.
>
> --
>
> --
> *From:* Samuel Just [sj...@redhat.com]
> *Sent:* Thursday, January 26, 2017 1:14 P
@redhat.com]
Sent: Thursday, January 26, 2017 1:14 PM
To: Nick Fisk
Cc: David Turner; ceph-users
Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
Just an update. I think the real goal with the sleep configs in general was to
reduce the number of concurrent snap trims ha
ent:* 19 January 2017 23:23
> *To:* David Turner
>
> *Cc:* Nick Fisk ; ceph-users
> *Subject:* Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during
> sleep?
>
>
>
> I could probably put together a wip branch if you have a test cluster you
> could try it out on
com
<mailto:ceph-users-boun...@lists.ceph.com> ] on behalf of David Turner
[david.tur...@storagecraft.com <mailto:david.tur...@storagecraft.com> ]
Sent: Thursday, January 19, 2017 3:25 PM
To: Samuel Just; Nick Fisk
Cc: ceph-users
Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during
> --
>
> --
> *From:* ceph-users [ceph-users-boun...@lists.ceph.com] on behalf of David
> Turner [david.tur...@storagecraft.com]
> *Sent:* Thursday, January 19, 2017 3:25 PM
> *To:* Samuel Just; Nick Fisk
>
> *Cc:* cep
the disk.
>
>> -Original Message-
>> From: Samuel Just [mailto:sj...@redhat.com]
>> Sent: 19 January 2017 18:58
>> To: Nick Fisk
>> Cc: Dan van der Ster ; ceph-users
>>
>> Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
s prohibited.
From: ceph-users [ceph-users-boun...@lists.ceph.com] on behalf of Samuel Just
[sj...@redhat.com]
Sent: Thursday, January 19, 2017 2:45 PM
To: Nick Fisk
Cc: ceph-users
Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
Yeah, I think you're probably righ
essage-
>> From: Samuel Just [mailto:sj...@redhat.com]
>> Sent: 19 January 2017 18:58
>> To: Nick Fisk
>> Cc: Dan van der Ster ; ceph-users
>>
>> Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
>>
>> Have you also t
uel Just [mailto:sj...@redhat.com]
> Sent: 19 January 2017 18:58
> To: Nick Fisk
> Cc: Dan van der Ster ; ceph-users
>
> Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
>
> Have you also tried setting osd_snap_trim_cost to
fixing a bug with that.
>
> Nick
>
>> -Original Message-
>> From: Samuel Just [mailto:sj...@redhat.com]
>> Sent: 19 January 2017 15:47
>> To: Dan van der Ster
>> Cc: Nick Fisk ; ceph-users
>> Subject: Re: [ceph-users] osd_snap_trim_sleep k
I know you are working on fixing a bug with
that.
Nick
> -Original Message-
> From: Samuel Just [mailto:sj...@redhat.com]
> Sent: 19 January 2017 15:47
> To: Dan van der Ster
> Cc: Nick Fisk ; ceph-users
> Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG d
RBD cluster is still running 0.94.9.
>
> Cheers, Dan
>
>
>>
>>> -Original Message-
>>> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of
>>> Nick Fisk
>>> Sent: 13 January 2017 20:38
>>> To: 'Dan va
o:ceph-users-boun...@lists.ceph.com] On Behalf Of
>> Nick Fisk
>> Sent: 13 January 2017 20:38
>> To: 'Dan van der Ster'
>> Cc: 'ceph-users'
>> Subject: Re: [ceph-users] osd_snap_trim_sleep keeps locks PG during sleep?
>>
>> We're o
ticable. It might be
that this option shouldn't be used with Jewel+?
> -Original Message-
> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of Nick
> Fisk
> Sent: 13 January 2017 20:38
> To: 'Dan van der Ster'
> Cc: 'ceph-users
1] http://lists.ceph.com/pipermail/ceph-users-ceph.com/2016-March/008652.html
> -Original Message-
> From: Dan van der Ster [mailto:d...@vanderster.com]
> Sent: 13 January 2017 10:28
> To: Nick Fisk
> Cc: ceph-users
> Subject: Re: [ceph-users] osd_snap_trim_sleep keeps lo
Hammer or jewel? I've forgotten which thread pool is handling the snap
trim nowadays -- is it the op thread yet? If so, perhaps all the op
threads are stuck sleeping? Just a wild guess. (Maybe increasing # op
threads would help?).
-- Dan
On Thu, Jan 12, 2017 at 3:11 PM, Nick Fisk wrote:
> Hi,
>
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