[PVE-User] Proxmox Ceph high memory usage

Gilberto Nunes gilberto.nunes32 at gmail.com
Wed Jan 16 13:52:44 CET 2019


I already do that
ceph config set bluestore_cache_size 536870912
ceph config set bluestore_cache_size_hdd 536870912
ceph config set bluestore_cache_size_ssd 1073741824

Any other clue you may have will be welcome.
---
Gilberto Nunes Ferreira

(47) 3025-5907
(47) 99676-7530 - Whatsapp / Telegram

Skype: gilberto.nunes36





Em qua, 16 de jan de 2019 às 10:42, Ronny Aasen <ronny+pve-user at aasen.cx>
escreveu:

> the memory consumption of the machine is an aggregate of multiple
> consumers.
>
> identify what is using memory try commands like
> top -o VIRT and top -o RES
>
>
> to reduce VM memory usage, you can move or stop virtual machines,
> reconfigure them with less memory, or try to use KSM if you nave many
> identical vm's  https://en.wikipedia.org/wiki/Kernel_same-page_merging
>
> to reduce ceoh osd memory consumption you can tweak the bluestore memory
> cache
>
> http://docs.ceph.com/docs/master/rados/configuration/bluestore-config-ref/#automatic-cache-sizing
> ; with only 16GB i think you need to try to reduce cache (and hence
> performance) a bit here.
>
> also ceph memory usage increase quite a bit when recovering and
> backfilling, so when planning resource requirements, plan for the
> recovery situation, and have some free overhead.
>
> kind regards
> Ronny Aasen
>
> On 16.01.2019 13:28, Gilberto Nunes wrote:
> > pve-ceph01:~# ceph status
> >    cluster:
> >      id:     e67534b4-0a66-48db-ad6f-aa0868e962d8
> >      health: HEALTH_WARN
> >              nobackfill,norebalance,norecover,nodeep-scrub flag(s) set
> >              394106/2589186 objects misplaced (15.221%)
> >              Degraded data redundancy: 124011/2589186 objects degraded
> > (4.790%), 158 pgs degraded, 76 pgs undersized
> >
> >    services:
> >      mon: 5 daemons, quorum
> > pve-ceph01,pve-ceph02,pve-ceph03,pve-ceph04,pve-ceph05
> >      mgr: pve-ceph05(active), standbys: pve-ceph01, pve-ceph03,
> pve-ceph04,
> > pve-ceph02
> >      osd: 21 osds: 21 up, 21 in; 230 remapped pgs
> >           flags nobackfill,norebalance,norecover,nodeep-scrub
> >
> >    data:
> >      pools:   1 pools, 512 pgs
> >      objects: 863.06k objects, 3.17TiB
> >      usage:   9.73TiB used, 53.0TiB / 62.8TiB avail
> >      pgs:     124011/2589186 objects degraded (4.790%)
> >               394106/2589186 objects misplaced (15.221%)
> >               180 active+clean
> >               76  active+remapped+backfill_wait
> >               70  active+recovery_wait
> >               63  active+undersized+degraded+remapped+backfill_wait
> >               49  active+recovery_wait+degraded+remapped
> >               32  active+recovery_wait+degraded
> >               28  active+recovery_wait+remapped
> >               12  active+recovery_wait+undersized+degraded+remapped
> >               1   active+recovering+degraded+remapped
> >               1   active+undersized+degraded+remapped+backfilling
> >
> >    io:
> >      client:   694KiB/s rd, 172KiB/s wr, 118op/s rd, 38op/s wr
> >      recovery: 257KiB/s, 0objects/s
> > ---
> > Gilberto Nunes Ferreira
> >
> > (47) 3025-5907
> > (47) 99676-7530 - Whatsapp / Telegram
> >
> > Skype: gilberto.nunes36
> >
> >
> >
> >
> >
> > Em qua, 16 de jan de 2019 às 10:23, Gilberto Nunes <
> > gilberto.nunes32 at gmail.com> escreveu:
> >
> >> Hi...
> >> I am using BlueStore.
> >> pve-manager/5.3-7/e8ed1e22 (running kernel: 4.15.18-9-pve)
> >>   ceph                                 12.2.10-pve1
> >>
> >> Thanks
> >> ---
> >> Gilberto Nunes Ferreira
> >>
> >> (47) 3025-5907
> >> (47) 99676-7530 - Whatsapp / Telegram
> >>
> >> Skype: gilberto.nunes36
> >>
> >>
> >>
> >>
> >>
> >> Em qua, 16 de jan de 2019 às 10:17, Eneko Lacunza <elacunza at binovo.es>
> >> escreveu:
> >>
> >>> Hi Gilberto,
> >>>
> >>> Are you using Blustore? What version of Ceph?
> >>>
> >>> El 16/1/19 a las 13:11, Gilberto Nunes escribió:
> >>>> Hi there
> >>>>
> >>>> Anybody else experiment hight memory usage in Proxmox CEPH Storage
> >>> Server?
> >>>> I have a 6 node PVE CEPH and after upgrade, I have noticed this high
> >>> memory
> >>>> usage...
> >>>> All server has 16GB of ram. I know this is not recomended, but that
> >>> what I
> >>>> have at the moment.
> >>>> In fact, just 3 servers ran with about 90% of memory usage.
> >>>> All server is IBM x3200 m2 with SATA disks...
> >>>> Here's ceph osd tree
> >>>> ceph osd tree
> >>>> ID  CLASS WEIGHT   TYPE NAME           STATUS REWEIGHT PRI-AFF
> >>>>    -1       38.50000 root default
> >>>>    -3        4.00000     host pve-ceph01
> >>>>     0   hdd  1.00000         osd.0           up  1.00000       0
> >>>>     1   hdd  1.00000         osd.1           up  1.00000       0
> >>>>     2   hdd  1.00000         osd.2           up  1.00000       0
> >>>>     3   hdd  1.00000         osd.3           up  1.00000       0
> >>>>    -5        8.00000     host pve-ceph02
> >>>>     4   hdd  2.00000         osd.4           up  1.00000 1.00000
> >>>>     5   hdd  2.00000         osd.5           up  1.00000 1.00000
> >>>>     6   hdd  2.00000         osd.6           up  1.00000 1.00000
> >>>>     7   hdd  2.00000         osd.7           up  1.00000 1.00000
> >>>>    -7        9.00000     host pve-ceph03
> >>>>     8   hdd  3.00000         osd.8           up  1.00000 1.00000
> >>>>     9   hdd  3.00000         osd.9           up  1.00000 1.00000
> >>>>    10   hdd  3.00000         osd.10          up  1.00000 1.00000
> >>>>    -9       12.00000     host pve-ceph04
> >>>>    11   hdd  3.00000         osd.11          up  1.00000 1.00000
> >>>>    12   hdd  3.00000         osd.12          up  1.00000 1.00000
> >>>>    13   hdd  3.00000         osd.13          up  1.00000 1.00000
> >>>>    14   hdd  3.00000         osd.14          up  1.00000 1.00000
> >>>> -11        1.00000     host pve-ceph05
> >>>>    15   hdd  0.50000         osd.15          up  1.00000       0
> >>>>    16   hdd  0.50000         osd.16          up  1.00000       0
> >>>> -13        4.50000     host pve-ceph06
> >>>>    17   hdd  1.00000         osd.17          up  1.00000       0
> >>>>    18   hdd  1.00000         osd.18          up  1.00000       0
> >>>>    20   hdd  1.00000         osd.20          up  1.00000       0
> >>>>    21   hdd  1.50000         osd.21          up  1.00000 1.00000
> >>>>
> >>>> ---
> >>>> Gilberto Nunes Ferreira
> >>>>
> >>>> (47) 3025-5907
> >>>> (47) 99676-7530 - Whatsapp / Telegram
> >>>>
> >>>> Skype: gilberto.nunes36
> >>>> _______________________________________________
> >>>> pve-user mailing list
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> >>>> https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
> >>>
> >>>
> >>> --
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> >>> Binovo IT Human Project, S.L.
> >>> Telf. 943569206
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> >>>
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> >>
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