Re: Failing heartbeats when no backfill is running

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MTU issues due to the VPN connection?


Paul

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Paul Emmerich

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On Wed, Aug 14, 2019 at 1:48 PM Lorenz Kiefner
<root+cephusers@xxxxxxxxxxxx> wrote:
>
> Dear ceph-users,
>
> I'm having trouble with heartbeats, there are a lot of "heartbeat_check:
> no reply from..."-messages in my logs when there is no backfilling or
> repairing running (yes, it's failing when all PGs are active+clean).
> Only a few OSDs are failing, even when there are several OSDs on the
> same host. Doesn't look like a network issue to me.
>
> When I set the flags "nobackfill" and "norecover" there are no heartbeat
> issues.
>
> My cluster is kind of heterogenous: it's ARMv7 and x86_64, connected
> mostly via VPN. Some hosts are Debian Stretch, so I'm still using Ceph
> Luminous (12.2.12).
>
> Is there someone having the same issue? What could be the next steps to
> debug? Any ideas?
>
> Thanks for any help!
>
> Lorenz
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