Re: [Octopus] OSD overloading

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I do:
root@backup1:~# ceph config dump | grep snap_trim_sleep
global        advanced  osd_snap_trim_sleep
60.000000
global        advanced  osd_snap_trim_sleep_hdd
60.000000

(cluster is fully rusty)


On 4/8/20 2:53 PM, Dan van der Ster wrote:
> Do you have a custom value for osd_snap_trim_sleep ?
> 
> On Wed, Apr 8, 2020 at 2:03 PM Jack <ceph@xxxxxxxxxxxxxx> wrote:
>>
>> I put the nosnaptrim during upgrade because I saw high CPU usage and
>> though it was somehow related to the upgrade process
>> However, all my daemon are now running Octopus, and the issue is still
>> here, so I was wrong
>>
>>
>> On 4/8/20 1:58 PM, Wido den Hollander wrote:
>>>
>>>
>>> On 4/8/20 1:38 PM, Jack wrote:
>>>> Hello,
>>>>
>>>> I've a issue, since my Nautilus -> Octopus upgrade
>>>>
>>>> My cluster has many rbd images (~3k or something)
>>>> Each of them has ~30 snapshots
>>>> Each day, I create and remove a least a snapshot per image
>>>>
>>>> Since Octopus, when I remove the "nosnaptrim" flags, each OSDs uses 100%
>>>> of its CPU time
>>>
>>> Why do you have the 'nosnaptrim' flag set? I'm missing that piece of
>>> information.
>>>
>>>> The whole cluster collapses: OSDs no longer see each others, most of
>>>> them are seens as down ..
>>>> I do not see any progress being made : it does not appear the problem
>>>> will solve by itself
>>>>
>>>> What can I do ?
>>>>
>>>> Best regards,
>>>> _______________________________________________
>>>> ceph-users mailing list -- ceph-users@xxxxxxx
>>>> To unsubscribe send an email to ceph-users-leave@xxxxxxx
>>>>
>> _______________________________________________
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>> To unsubscribe send an email to ceph-users-leave@xxxxxxx
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