some logs from from node1

Terminating drbd_a_clusterd
Connection closed
conn( NetworkFailure -> Unconnected )
receiver terminated
Restarting receiver thread
receiver (re)started
conn( Unconnected -> WFConnection )
Starting worker thread (from drbdsetup [2169])
Method to ensure write ordering: flush
conn( StandAlone -> Unconnected )

some logs from node2

host2 kernel: block drbd0: Split-Brain detected but unresolved, dropping connection!


log in to the victim host(node2)

[root@host2 ~]# drbdadm secondary clusterdb
[root@host2 ~]# drbdadm disconnect clusterdb
[root@host2 ~]# drbdadm -- --discard-my-data connect clusterdb


log in to the survivor host(node1)

[root@host1 ~]# drbdadm connect clusterdb