On Tue, Jun 21, 2022 at 8:52 PM Peter Lieven <p...@kamp.de> wrote:
>
> Hi,
>
>
> we noticed that some of our long running VMs (1 year without migration) seem
> to have a very slow memory leak. Taking a dump of the leaked memory revealed
> that it seemed to contain osd and pool information so we concluded that it
> must have something to do with crush map updates. We then wrote a test script
> in our dev environment that constantly takes out osds and kicks then back in
> as soon as all remappings are done.
Hi Peter,
How did you determine what memory is being leaked?
>
> With that script running the PSS usage of the Qemu process is constantly
> increasing (main memory of the VM is in hugetblfs) in an order of about 5MB /
> day for a very small dev cluster with approx. 40 OSDs and 5 pools.
>
> We have observed this issue first with Nautilus 14.2.22 and then also tried
> Octopus 15.2.16 where some issues #38403 should have been fixed.
With the release of 15.2.17 in a few weeks, Octopus would be going
EOL. Given that this is a dev cluster, can you try something more
recent -- preferably Quincy?
Thanks,
Ilya
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