[PVE-User] Proxmox Ceph high memory usage

[Gilberto Nunes]

My other question is if I could use affinity to prevent performance
bottlenecks...
I have 5 HDD which is 5 900 RPM.... So can I apply this affinity to this
slow disks?
---
Gilberto Nunes Ferreira

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

Skype: gilberto.nunes36





Em qua, 16 de jan de 2019 às 11:18, Gilberto Nunes <
gilberto.nunes32 at gmail.com> escreveu:

> SO I use this command
>
> ceph config set osd_memory_target 1073741824
> And set it into /etc/pve/ceph.conf
> It's seems to me that have a positive effect...
> I am monitoring yet
>
> Thanks a lot
> ---
> Gilberto Nunes Ferreira
>
> (47) 3025-5907
> (47) 99676-7530 - Whatsapp / Telegram
>
> Skype: gilberto.nunes36
>
>
>
>
>
> Em qua, 16 de jan de 2019 às 11:11, Gilberto Nunes <
> gilberto.nunes32 at gmail.com> escreveu:
>
>> Oh! I see it now!
>> So what I need to change is osd_memory_target instead bluestore_cache_*,
>> right?
>>
>> Thanks
>> ---
>> Gilberto Nunes Ferreira
>>
>> (47) 3025-5907
>> (47) 99676-7530 - Whatsapp / Telegram
>>
>> Skype: gilberto.nunes36
>>
>>
>>
>>
>>
>> Em qua, 16 de jan de 2019 às 11:07, Alwin Antreich <
>> a.antreich at proxmox.com> escreveu:
>>
>>> Hello Gilberto,
>>>
>>> On Wed, Jan 16, 2019 at 10:11:06AM -0200, Gilberto Nunes wrote:
>>> > 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
>>> >
>>> Did you see the changle on package upgrade? It explains why it is using
>>> more memory then before.
>>>
>>> http://download.proxmox.com/debian/ceph-luminous/dists/stretch/main/binary-amd64/ceph_12.2.10-pve1.changelog
>>>
>>> --
>>> Cheers,
>>> Alwin
>>>
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>>>
>>