/**
* Remove one application type from the node. Happens when the daemon responsible for handling
* this application type on the node goes down
*
* @param node the node
* @param type the type of the resource
* @return the list of grants that belonged to the application on this node
*/
protected Set<ClusterNode.GrantId> deleteAppFromNode(ClusterNode node, ResourceType type) {
synchronized (node) {
if (node.deleted) {
return null;
}
nameToApps.remove(node.getName());
RunnableIndices r = typeToIndices.get(type);
r.deleteRunnable(node);
return node.getGrants(type);
}
}
/**
* Delete the node from the cluster. This happens when the node times out or is being
* decommissioned.
*
* @param node the node to remove
* @return the list of grants that are running on the node
*/
protected Set<ClusterNode.GrantId> deleteNode(ClusterNode node) {
synchronized (node) {
if (node.deleted) {
return null;
}
node.deleted = true;
// 1: primary
nameToNode.remove(node.getName());
faultManager.deleteNode(node.getName());
nameToApps.remove(node.getName());
hostsToSessions.remove(node);
setAliveDeadMetrics();
// 2: update runnable index
for (RunnableIndices r : typeToIndices.values()) {
r.deleteRunnable(node);
}
return node.getGrants();
}
}
