Re: Octopus: Recovery and backfilling causes OSDs to crash after upgrading from nautilus to octopus

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> Op 5 jul. 2020 om 15:26 heeft Wout van Heeswijk <wout@xxxxxxxx> het volgende geschreven:
> 
> Good point, we've looked at that, but can't see any message regarding OOM Killer:
> 

Have to add here that we looked at changing osd memory target as well, but that did not make a difference.

tcmalloc seems to suggest a memory allocation problem, but we haven’t found the root cause yet.

Hopefully somebody else on the list here knows where to look.

Wido


> root@st0:~# lsb_release -a
> No LSB modules are available.
> Distributor ID: Ubuntu
> Description:    Ubuntu 18.04.4 LTS
> Release:        18.04
> Codename:       bionic
> root@st0:~# grep -i "out of memory" /var/log/kern.log
> root@st0:~#
> 
> kind regards,
> 
> Wout
> 42on
> 
>> On 2020-07-05 14:45, Lindsay Mathieson wrote:
>>> On 5/07/2020 10:43 pm, Wout van Heeswijk wrote:
>>> After unsetting the norecover and nobackfill flag some OSDs started crashing every few minutes. The OSD log, even with high debug settings, don't seem to reveal anything, it just stops logging mid log line. 
>> 
>> 
>> POOMA U, but could the OOM Killer be taking them down?
>> 
> 
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