How to use

getAllocatedResources

method

in

org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSQueueMetrics

/**
 * Subqueue metrics might be a little out of date because fair shares are
 * recalculated at the update interval, but the root queue metrics needs to
 * be updated synchronously with allocations and completions so that cluster
 * metrics will be consistent.
 */
private void updateRootQueueMetrics() {
 rootMetrics.setAvailableResourcesToQueue(
   Resources.subtract(
     clusterResource, rootMetrics.getAllocatedResources()));
}

/**
 * Subqueue metrics might be a little out of date because fair shares are
 * recalculated at the update interval, but the root queue metrics needs to
 * be updated synchronously with allocations and completions so that cluster
 * metrics will be consistent.
 */
private void updateRootQueueMetrics() {
 rootMetrics.setAvailableResourcesToQueue(
   Resources.subtract(
     clusterResource, rootMetrics.getAllocatedResources()));
}

/**
 * Subqueue metrics might be a little out of date because fair shares are
 * recalculated at the update interval, but the root queue metrics needs to
 * be updated synchronously with allocations and completions so that cluster
 * metrics will be consistent.
 */
private void updateRootQueueMetrics() {
 rootMetrics.setAvailableResourcesToQueue(
   Resources.subtract(
     getClusterResource(), rootMetrics.getAllocatedResources()));
}

/**
 * Dump scheduler state including states of all queues.
 */
private void dumpSchedulerState() {
 FSQueue rootQueue = queueMgr.getRootQueue();
 Resource clusterResource = getClusterResource();
 STATE_DUMP_LOG.debug(
   "FairScheduler state: Cluster Capacity: " + clusterResource +
   "  Allocations: " + rootMetrics.getAllocatedResources() +
   "  Availability: " + Resource.newInstance(
     rootMetrics.getAvailableMB(),
     rootMetrics.getAvailableVirtualCores()) +
   "  Demand: " + rootQueue.getDemand());
 STATE_DUMP_LOG.debug(rootQueue.dumpState());
}

/**
 * Recompute the internal variables used by the scheduler - per-job weights,
 * fair shares, deficits, minimum slot allocations, and amount of used and
 * required resources per job.
 */
protected synchronized void update() {
 long start = getClock().getTime();
 updateStarvationStats(); // Determine if any queues merit preemption
 FSQueue rootQueue = queueMgr.getRootQueue();
 // Recursively update demands for all queues
 rootQueue.updateDemand();
 rootQueue.setFairShare(clusterResource);
 // Recursively compute fair shares for all queues
 // and update metrics
 rootQueue.recomputeShares();
 updateRootQueueMetrics();
 if (LOG.isDebugEnabled()) {
  if (--updatesToSkipForDebug < 0) {
   updatesToSkipForDebug = UPDATE_DEBUG_FREQUENCY;
   LOG.debug("Cluster Capacity: " + clusterResource +
     "  Allocations: " + rootMetrics.getAllocatedResources() +
     "  Availability: " + Resource.newInstance(
     rootMetrics.getAvailableMB(),
     rootMetrics.getAvailableVirtualCores()) +
     "  Demand: " + rootQueue.getDemand());
  }
 }
 long duration = getClock().getTime() - start;
 fsOpDurations.addUpdateCallDuration(duration);
}

/**
 * Recompute the internal variables used by the scheduler - per-job weights,
 * fair shares, deficits, minimum slot allocations, and amount of used and
 * required resources per job.
 */
protected synchronized void update() {
 long start = getClock().getTime();
 updateStarvationStats(); // Determine if any queues merit preemption
 FSQueue rootQueue = queueMgr.getRootQueue();
 // Recursively update demands for all queues
 rootQueue.updateDemand();
 rootQueue.setFairShare(clusterResource);
 // Recursively compute fair shares for all queues
 // and update metrics
 rootQueue.recomputeShares();
 updateRootQueueMetrics();
 if (LOG.isDebugEnabled()) {
  if (--updatesToSkipForDebug < 0) {
   updatesToSkipForDebug = UPDATE_DEBUG_FREQUENCY;
   LOG.debug("Cluster Capacity: " + clusterResource +
     "  Allocations: " + rootMetrics.getAllocatedResources() +
     "  Availability: " + Resource.newInstance(
     rootMetrics.getAvailableMB(),
     rootMetrics.getAvailableVirtualCores()) +
     "  Demand: " + rootQueue.getDemand());
  }
 }
 long duration = getClock().getTime() - start;
 fsOpDurations.addUpdateCallDuration(duration);
}