Re: 750GB SSD ceph-osd using 42GB RAM

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Hi Nico,

I did not used this till today but perhaps it will be helpfull for you?

https://docs.ceph.com/en/latest/rados/troubleshooting/memory-profiling/

There is also something like this

ceph tell {daemon-type}{daemon-id} heap release

But did you already just restarted the osd in question?

Hth
Mehmet

Am 30. Oktober 2022 07:19:27 MEZ schrieb Nico Schottelius <nico.schottelius@xxxxxxxxxxx>:
>
>Good morning ceph-users,
>
>we currently have one OSD based on a SATA SSD (750GB raw) that consume
>around 42 GB of RAM. The cluster status is HEALTH_OK, no rebalancing or
>pg change.
>
>I can go ahead and just kill it, but I was wondering if there is an easy
>way to figure out why it is consuming so much memory and help the
>OSD to recover it? It has been using a 40+ GB amount of memory for a few
>days now, without any known cluster changes.
>
>This is based on ceph 16.2.10 + rook.
>
>Best regards,
>
>Nico
>
>--
>Sustainable and modern Infrastructures by ungleich.ch
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