Re: steady increasing of osd map epoch since octopus

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Hi,

You can get two adjacent osdmap epochs (ceph osd getmap <epoch> -o map.<epoch>)
Then use osdmaptool to print those maps, hopefully revealing what is
changing between the two epochs.

Cheers, Dan


On Fri, Nov 5, 2021 at 4:54 PM Manuel Lausch <manuel.lausch@xxxxxxxx> wrote:
>
> Hello,
>
> I observed some interessting behavior change since upgrading to
> octopus and above. The OSD map epoch is constantly increasing.
> Until nautilus the epoch did only change if OSDs went
> down/out/up/in, snapshots are created or deleted, recovery or
> backfilling took place, flags like the noout was set or deleted, and so
> on. In most cases, there were no changes.
> But since nautilus, and in pacific too, I see steady increase in the
> map epoch.
> Is this expcted behaviour since then?
>
> Regards
> Manuel
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