[ https://issues.jboss.org/browse/WFLY-6749?page=com.atlassian.jira.plugin.... ] Paul Ferraro edited comment on WFLY-6749 at 6/22/16 5:07 PM: ------------------------------------------------------------- The default stack contains the following failure detection protocols: * FD_SOCK * FD_ALL These protocols are described here: http://www.jgroups.org/manual/index.html#FailureDetection I suspect that your method of simulating a failure - by disabling the network of the host machine is not being detected by FD_SOCK. It will however, be detected by FD_ALL, but only after 1 minute. The heartbeat timeout used by FD_ALL can be manipulated via the timeout property. e.g. <protocol type="FD_ALL" ><property name="timeout">60000</property></protocol> was (Author: pferraro): The default stack contains the following failure detection protocols: * FD_SOCK * FD_ALL These protocols are described here: http://www.jgroups.org/manual/index.html#FailureDetection I suspect that your method of simulating a failure - by disabling the network of the host machine is not being detected by FD_SOCK. It will however, be detected by FD_ALL, but only after 1 minute. The heartbeat timeout used by FD_ALL can be manipulated via the timeout property. e.g. <protocol type="FD_ALL" ><property name="timeout">60000</property></protocol> -- This message was sent by Atlassian JIRA (v6.4.11#64026)