Examples with CLUSTER_EVENT org.onosproject.security.AppPermission.Type.CLUSTER_EVENT used on opensource projects

Example 1 with CLUSTER_EVENT

use of org.onosproject.security.AppPermission.Type.CLUSTER_EVENT in project onos by opennetworkinglab.

the class UpgradeManager method handleClusterEvent.

/**
 * Handles a cluster event.
 *
 * @param event the cluster event
 */
protected void handleClusterEvent(ClusterEvent event) {
    checkPermission(CLUSTER_EVENT);
    // If an instance was deactivated, check whether we need to roll back the upgrade.
    if (event.type() == ClusterEvent.Type.INSTANCE_DEACTIVATED) {
        Upgrade upgrade = getState();
        if (upgrade.status().upgraded()) {
            // Get the upgraded subset of the cluster and check whether the down node is a member
            // of the upgraded subset. If so, roll back the upgrade to tolerate the failure.
            Set<NodeId> upgradedNodes = clusterService.getNodes().stream().map(ControllerNode::id).filter(id -> clusterService.getVersion(id).equals(upgrade.target())).collect(Collectors.toSet());
            if (upgradedNodes.contains(event.subject().id())) {
                log.warn("Upgrade failure detected: rolling back upgrade");
                rollback();
            }
        }
    }
}