/**
* Cancel grant on a node
*
* @param nodeName the node the grant is on
* @param sessionId the session the grant was given to
* @param requestId the request this grant satisfied
*/
public void cancelGrant(String nodeName, String sessionId, int requestId) {
ClusterNode node = nameToNode.get(nodeName);
if (node == null) {
LOG.warn("Canceling grant for non-existent node: " + nodeName);
return;
}
synchronized (node) {
if (node.deleted) {
LOG.warn("Canceling grant for deleted node: " + nodeName);
return;
}
String hoststr = node.getClusterNodeInfo().getAddress().getHost();
if (!canAllowNode(hoststr)) {
LOG.warn("Canceling grant for excluded node: " + hoststr);
return;
}
ResourceRequestInfo req = node.getRequestForGrant(sessionId, requestId);
if (req != null) {
ResourceRequest unitReq = Utilities.getUnitResourceRequest(req.getType());
boolean previouslyRunnable = node.checkForGrant(unitReq, resourceLimit);
node.cancelGrant(sessionId, requestId);
loadManager.decrementLoad(req.getType());
if (!previouslyRunnable && node.checkForGrant(unitReq, resourceLimit)) {
RunnableIndices r = typeToIndices.get(req.getType());
if (!faultManager.isBlacklisted(node.getName(), req.getType())) {
r.addRunnable(node);
}
}
}
}
}
