[pbs-devel] Scheduler causing connectivity issues?

[dea]

Mmmmm no, for me the same problem.

Rollback 2.2.4 -> 2.2.1 and works great.







Il 15/07/22 13:49, Thomas Lamprecht ha scritto:
> Am 13/07/2022 um 12:41 schrieb Mark Schouten:
>> Requested files sent offlist.
> Thanks!
>
> You have 30% of runnable process getting stalled due waiting for IO, that
> naturally should not cause the request accept future to get starved but is
> the reason for why it happened with the current (or better old)
> architecture. Increasing available memory, so that the page cache can hold
> more entries, could already relieve that system a bit.
>
> We improved on the reproducer we got locally by simulating a higher latency
> disk using dm-delay on a small single core VM.
>
> For one we made the libpve-storage-perl do more efficient list-snapshot
> requests if they can be filtered by VMID, and on the PBS side we moved most
> operations that cause IO (and are related to backup groups/snapshots) to a
> separate thread pool so that the main thread should be less
> congested/blocked.
>
> The results got packaged and uploaded to our test repositories and are
> available with:
>
> - proxmox-backup-server version 2.2.4-1
> - libpve-storage-perl version 7.2-7
>
> It'd be great if you could try out those and report back if they actually
> helped in your setup(s) too.
>
> cheers,
> Thomas
>
>
>
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