Removing a server from a High Availability pool
A HCL Traveler High Availability (HA) pool is a group of servers that are all configured to use the same enterprise database.
This database contains a table used to track the servers that are participating in an HA pool (see Configuring HCL Traveler for enterprise database). A server becomes part of the HA pool by adding itself to this table when it is started. If a server is offline for 24 hours, it will automatically be removed from the table by the other servers that are still active. As a result, if you want to remove a server from the pool, simply take it offline, uninstall it or configure it to use a different database, either stand-alone or a different enterprise database.
Once a server is offline, the entry for it can be removed from
the table without waiting the 24 hour period for it to be automatically
removed. This can be done by issuing the command tell traveler
hadr delete <serverName>
from the console of an active
server to delete the unwanted server. You should also update the network
configuration and/or IP Sprayer to no longer route requests to the
removed server.
travelerUtil
utility and issuing the db remove
command. This
command removes the enterprise database credentials and reconfigures the HCL Traveler server to use
Derby in a stand-alone configuration.