These are messages generated by Shoal GMS which Glassfish uses as its clustering technology. The messages you have there show that it was expecting node qisi2
to be a member of the cluster.
As it hasn't received any communication from qisi2
for some time (not sure how long) it's assuming that node has failed.
If 'qisi2' should be a functioning node in the cluster then you should check your cluster config and communication to that node.