The master load information manager (lim) receives requests to add hosts, and tells master host candidates to update their configuration information when a host is dynamically added or removed from the cluster. Upon startup, dynamic hosts wait to receive an acknowledgement from the master lim indicating that the master lim has already added it to the cluster. Dynamic hosts will not receive this acknowledgement until they first announce themselves to the master lim (via the slave lim). The parameter EGO_DYNAMIC_HOST_WAIT_TIME in ego.cluster determines how long the slave lim waits before sending a request to the master lim to add the host to the cluster.
If the parameter ENABLE_DYNAMIC_HOSTS is set to "Y" in install.conf, then EGO_DYNAMIC_HOST_WAIT_TIME gets included by default in ego.conf during installation, and is set to 60 seconds. EGO_DYNAMIC_HOST_WAIT_TIME must be a value greater than zero. The recommended setting is 60 seconds for every 1000 hosts in the cluster. If the wait time value is too long, the host may not join the cluster in a timely manner. If it is too short, it may interfere with other messages and acknowledgements sent out at startup to static hosts.