2 datacenter, each with 3 keycloak nodes & 3 infinipsan nodes
versions:
keycloak - 3.4.3.Final
Infinispan - 9.1.4

Observations
1. lots of messages from keycloak on Timeout to read/write messages to infinipsan, including jgroups timeout messages
2. connect infinispan via ispn-cli.sh script, execute container clustered, then the command ls returning no output but error message

Recovery procedure
Restart whole infinispan cluster from one dc, then another
After infinispan restart keycloak service come back to normal