Modifying the REST API Server Port

!Due to a defect of LKWMC v1.1.0, the REST API Server Port cannot be changed in /etc/default/LifeKeeper.
As a workaround, use the following command for step 1 of “Modifying the REST API Server Port”.
# systemctl set-environment RESTAPI_PORT=<TCP port number of the REST API server>

*This documentation section describes the LifeKeeper Web Management Console (LKWMC). Refer to the LifeKeeper Web Management Console for an overview.

By default, the REST API server listens for client connections on TCP port 5000. If necessary (e.g., if there is a conflict caused by a different process listening on the same port), this port number may be changed.

To change the port number, follow these steps:

1. On each LifeKeeper cluster node, open the /etc/default/LifeKeeper file using a text editor:

# vi /etc/default/LifeKeeper

and add an entry of the following form (or modify the entry if it already exists):

RESTAPI_PORT=<REST API Server TCP Port>

where <REST API Server TCP Port> is a valid TCP port in the range 1-65535 which is not already in use. For example, to set the REST API server port to TCP port 5010, the following entry would be added:

RESTAPI_PORT=5010

*It is important to make this modification to /etc/default/LifeKeeper on all nodes in the LifeKeeper cluster.

2. In order to apply the changes, the systemd services that manage the REST API server (lifekeeper-api.service) and GUI server (lifekeeper-wmc.service) must both be restarted on all LifeKeeper nodes where they are running:

# systemctl restart lifekeeper-api lifekeeper-wmc

*It is important to restart the GUI server service so that its configuration is updated appropriately to send API requests to the correct port.