Continuous high Recv-Q on corosync

Maarten

Member
Nov 12, 2017
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We have a 4-node cluster. 3 of them are also serving disks as OSD's for their Ceph cluster, the 4th is not.
The 4th has also slightly faster CPU.

The 3 servers are Dell R620 with a Dell raid controller, the other one is a HP ProLiant something with HP raid card probably then.

On the 3 nodes that are similar, I see constant Recv-Q in netstat for the corosync process.

This is also visible on some underlying UDP processes that run in the containers.

What could be the source of this Recv-Q? What I do need to troubleshoot?
 

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