Foglight upgrade reverts the HA configuration in jgroups-config.xml (4375362)

After completing the upgrade of a Foglight environment in High Availability mode, all the nodes are starting as primary servers.

Review of the HA configuration in jgroups-config.xml shows that it has been reset to default values.

For example, before the upgrade the initial_hosts attribute under the TCPPING element was configured with the other Foglight servers addresses but after the upgrade the element is commented out and values restored to their defaults:

	<!--<TCPPING
		initial_hosts="${jgroups.bind_addr}[7800],otherhost[7800]" 
		port_range="3"
	/>-->

WORKAROUND

If upgrading between minor Foglight 6.3.x releases (Eg. 6.3.0.3 to 6.3.0.6), restore the jgroups-config.xml configuration file from the backup created by the Foglight installer in [FMS_HOME]/state/backup/[previous-fms-version]/config.

If upgrading from a Foglight version before 6.3.x (E.g. 6.1.0 to 6.3.0.6) and configured to use TCP; it is recommended to reconfigure the TCP and TCPPING elements due to changes in the configuration file. Refer to the "Tuning the Management Server" section of the Foglight - High Availability Field Guide for additional details on how to use TCP instead of UDP as the communication protocol.

STATUS

Issue fixed in version 7.1. The latest version of Foglight can be downloaded here.