Hi
As a result of applying a Silence, they correctly appear on the
Observability\Alerts screen as "suppressed".
However they still appear on the home page Dashboard, in the top-centre
Status panel:
Thanks, Chris
On 05/02/2026 16:10, Ankush Behl wrote:
Hi Chris, do you mean they show up in overview dashboard? Can you show
via some screenshots where all they are coming up?
On Thu, 5 Feb 2026 at 6:39 PM, Chris Palmer via ceph-users
<[email protected]> wrote:
cephadm (squid & tentacle) deploys alertmanager with some default
alerts. One is CephNodeInconsistentMTU which checks if the MTU of
each
interface with the same name is the same across the cluster.
However if your cluster nodes are not identical, and have differing
interface names, we end up with lots of permanent alerts. Although
I can
silence the alert (matching the alert name) for a long time, they
still
show up in the dashboard.
The alerts are different permutations of:
Node ceph3 has a different MTU size (1500) than the median of
devices named enp4s0.
Since that check is inappropriate in a heterogeneous cluster,
what's the
recommended way of disabling it, which won't get overwritten with
redeployment of the monitoring stack?
Thanks, Chris
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