Hi Benoit and Peter,
looks like your findings are valid and spillover alert is broken for
now. I've just created https://tracker.ceph.com/issues/58440 to track this.
Thanks,
Igor
On 1/13/2023 9:54 AM, Benoît Knecht wrote:
Hi Peter,
On Thursday, January 12th, 2023 at 15:12, Peter van Heusden<pvh@xxxxxxxxxxx> wrote:
I have a Ceph installation where some of the OSDs were misconfigured to use
1GB SSD partitions for rocksdb. This caused a spillover ("BlueFS spillover
detected"). I recently upgraded to quincy using cephadm (17.2.5) the
spillover warning vanished. This is
despite bluestore_warn_on_bluefs_spillover still being set to true.
I noticed this on Pacific as well, and I think it's due to this commit:
https://github.com/ceph/ceph/commit/d17cd6604b4031ca997deddc5440248aff451269.
It removes the logic that would normally update the spillover health check, so
it never triggers anymore.
As others mentioned, you can get the relevant metrics from Prometheus and setup
alerts there instead. But it does make me wonder how many people might have
spillover in their clusters and not even realize it, since there's no warning by
default.
Cheers,
--
Igor Fedotov
Ceph Lead Developer
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