31 Jul
2020
31 Jul
'20
10:35 a.m.
Hi,
we are having problems with really long taking deep-scrubb processes
causing PG_NOT_DEEP_SCRUBBED and ceph HEALTH_WARN. One ph is waiting
since 2020-05-18 for the deep-scrubb.
Is there any way to speed up the deep-scrubbing?
Ceph-Version:
ceph version 14.2.8-3-gc6b8eedb77
(c6b8eedb771089fe3b0a95da93158ec4144758f3) nautilus (stable)
31 Jul
31 Jul
2:52 p.m.
What happen when you do start a scrub manual?
Imo
ceph osd deep-scrub xyz
Hth
Mehmet
Am 31. Juli 2020 15:35:49 MESZ schrieb Carsten Grommel - Profihost AG
<c.grommel(a)profihost.ag>ag>:
Hi,
we are having problems with really long taking deep-scrubb processes
causing PG_NOT_DEEP_SCRUBBED and ceph HEALTH_WARN. One ph is waiting
since 2020-05-18 for the deep-scrubb.
Is there any way to speed up the deep-scrubbing?
Ceph-Version:
ceph version 14.2.8-3-gc6b8eedb77
(c6b8eedb771089fe3b0a95da93158ec4144758f3) nautilus (stable)
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3:30 p.m.
One way this can happen is if you have the default setting
osd_scrub_during_recovery=false
If you’ve been doing a lot of [re]balancing, drive replacements, topology changes,
expansions, etc. scrubs can be starved especially if you’re doing EC on HDDs.
HDD or SSD OSDs? Replication or EC?
Number of OSDs? Number of PGs? Values of osd_scrub_max interval and
osd_deep_scrub_interval ?
— aad
On Jul 31, 2020, at 10:52 AM, ceph(a)elchaka.de wrote:
What happen when you do start a scrub manual?
Imo
ceph osd deep-scrub xyz
Hth
Mehmet
Am 31. Juli 2020 15:35:49 MESZ schrieb Carsten Grommel - Profihost AG
<c.grommel(a)profihost.ag>ag>:
Hi,
we are having problems with really long taking deep-scrubb processes
causing PG_NOT_DEEP_SCRUBBED and ceph HEALTH_WARN. One ph is waiting
since 2020-05-18 for the deep-scrubb.
Is there any way to speed up the deep-scrubbing?
Ceph-Version:
ceph version 14.2.8-3-gc6b8eedb77
(c6b8eedb771089fe3b0a95da93158ec4144758f3) nautilus (stable)
_______________________________________________
ceph-users mailing list -- ceph-users(a)ceph.io
To unsubscribe send an email to ceph-users-leave(a)ceph.io
_______________________________________________
ceph-users mailing list -- ceph-users(a)ceph.io
To unsubscribe send an email to ceph-users-leave(a)ceph.io
3 Aug
3 Aug
5:45 a.m.
One way this can happen is if you have the default
setting
osd_scrub_during_recovery=false
Seems like the default setting is active
If you’ve been doing a lot of [re]balancing, drive replacements, topology changes,
expansions, etc. scrubs can be starved especially if you’re doing EC on HDDs.
HDD or SSD OSDs? Replication or EC?
HDDs with SSDs as cache, EC
Number of OSDs? Number of PGs? Values of osd_scrub_max
interval and osd_deep_scrub_interval ?
*ceph -s*
cluster:
id: 7e242332-55c3-4926-9646-149b2f5c8081
health: HEALTH_OK
services:
mon: 3 daemons, quorum cloud10-1517,cloud10-1518,cloud10-1519 (age 12d)
mgr: cloud10-1519(active, since 13d), standbys: cloud10-1518,
cloud10-1517
mds: 3 up:standby
* osd: 56 osds: 56 up (since 12d), 56 in (since 4w)*
data:
* pools: 2 pools, 1280 pgs*
objects: 72.32M objects, 215 TiB
usage: 346 TiB used, 187 TiB / 533 TiB avail
pgs: 918 active+clean+snaptrim_wait
267 active+clean
94 active+clean+snaptrim
1 active+clean+scrubbing+deep
io:
client: 295 KiB/s rd, 199 MiB/s wr, 221 op/s rd, 894 op/s wr
The interval settings are already very high:
osd_scrub_max_interval = 4838400
osd_deep_scrub_interval = 3628800
Am 31.07.20 um 20:30 schrieb Anthony D'Atri:
One way this can happen is if you have the default
setting
osd_scrub_during_recovery=false
If you’ve been doing a lot of [re]balancing, drive replacements, topology changes,
expansions, etc. scrubs can be starved especially if you’re doing EC on HDDs.
HDD or SSD OSDs? Replication or EC?
>
Number of OSDs? Number of PGs? Values of osd_scrub_max
interval and osd_deep_scrub_interval ?
>
> — aad
>
>> On Jul 31, 2020, at 10:52 AM, ceph(a)elchaka.de wrote:
>>
>> What happen when you do start a scrub manual?
>>
>> Imo
>>
>> ceph osd deep-scrub xyz
>>
>> Hth
>> Mehmet
>>
>>
>> Am 31. Juli 2020 15:35:49 MESZ schrieb Carsten Grommel - Profihost AG
<c.grommel(a)profihost.ag>ag>:
>>> Hi,
>>>
>>> we are having problems with really long taking deep-scrubb processes
>>> causing PG_NOT_DEEP_SCRUBBED and ceph HEALTH_WARN. One ph is waiting
>>> since 2020-05-18 for the deep-scrubb.
>>>
>>> Is there any way to speed up the deep-scrubbing?
>>>
>>> Ceph-Version:
>>>
>>> ceph version 14.2.8-3-gc6b8eedb77
>>> (c6b8eedb771089fe3b0a95da93158ec4144758f3) nautilus (stable)
>>> _______________________________________________
>>> ceph-users mailing list -- ceph-users(a)ceph.io
>>> To unsubscribe send an email to ceph-users-leave(a)ceph.io
>> _______________________________________________
>> ceph-users mailing list -- ceph-users(a)ceph.io
>> To unsubscribe send an email to ceph-users-leave(a)ceph.io
5:46 a.m.
Yeah we tried that already.
The health_warn will remain thus it seems that this will not reset the
timer.
Am 31.07.20 um 19:52 schrieb ceph(a)elchaka.de:
What happen when you do start a scrub manual?
Imo
ceph osd deep-scrub xyz
Hth
Mehmet
Am 31. Juli 2020 15:35:49 MESZ schrieb Carsten Grommel - Profihost AG
<c.grommel(a)profihost.ag>ag>:
Hi,
we are having problems with really long taking deep-scrubb processes
causing PG_NOT_DEEP_SCRUBBED and ceph HEALTH_WARN. One ph is waiting
since 2020-05-18 for the deep-scrubb.
Is there any way to speed up the deep-scrubbing?
Ceph-Version:
ceph version 14.2.8-3-gc6b8eedb77
(c6b8eedb771089fe3b0a95da93158ec4144758f3) nautilus (stable)
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4 comments
3 participants
participants (3)
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Anthony D'Atri -
Carsten Grommel - Profihost AG -
ceph＠elchaka.de