"[Knet] Host: Host: x Has No Active Links" Messages in Corosync/Pacemaker Cluster (Doc ID 2846883.1)

Last updated on FEBRUARY 10, 2022

Applies to:

Symptoms

The following messages are visible in a two node Corosync/Pacemaker cluster. Similar messages are seen on both nodes in different times. The node(s) are loosing knet connection.

cat /var/log/messages | grep KNET
May 4 01:00:46 test corosync[974]: [KNET ] link: host: 2 link: 0 is down
May 4 01:00:46 test corosync[974]: [KNET ] host: host: 2 (passive) best link: 0 (pri: 1)
May 4 01:00:46 test corosync[974]: [KNET ] host: host: 2 has no active links
May 4 01:00:47 test corosync[974]: [KNET ] rx: host: 2 link: 0 is up
May 4 01:00:47 test corosync[974]: [KNET ] host: host: 2 (passive) best link: 0 (pri: 1) 

Cause

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