Hi,
We're running Ceph 16.2.5 Pacific and, in the ceph dashboard, we keep
getting a MTU mismatch alert. However, all our hosts have the same
network configuration:
=> bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 9000 qdisc
noqueue state UPgroup default qlen 1000 => vlan.24@bond0:
<BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state UPgroup
default qlen 1000
Physical interfaces, bond andvlans are all setto9000.
The alert's message looks like this :
Node node20 has a different MTU size (9000) than the median value on
device vlan.24.
Is this a known Pacific bug? None of our other Ceph clusters does this
(they are running on Octopus/Nautilus).
--
Jean-Philippe Méthot
Senior Openstack system administrator
Administrateur système Openstack sénior
PlanetHoster inc.
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