private RMContainer createReservedRMContainer(
ApplicationAttemptId appAttId,
int id,
Resource resource,
NodeId nodeId,
Priority reservedPriority) {
RMContainer container = createRMContainer(appAttId, id, resource);
when(container.getReservedResource()).thenReturn(resource);
when(container.getReservedPriority()).thenReturn(reservedPriority);
when(container.getReservedNode()).thenReturn(nodeId);
return container;
}
public synchronized void reserveResource(
SchedulerApplicationAttempt application, Priority priority, RMContainer reservedContainer) {
// Check if it's already reserved
if (this.reservedContainer != null) {
// Sanity check
if (!reservedContainer.getContainer().getNodeId().equals(getNodeID())) {
throw new IllegalStateException(
"Trying to reserve"
+ " container "
+ reservedContainer
+ " on node "
+ reservedContainer.getReservedNode()
+ " when currently"
+ " reserved resource "
+ this.reservedContainer
+ " on node "
+ this.reservedContainer.getReservedNode());
}
// Cannot reserve more than one application attempt on a given node!
// Reservation is still against attempt.
if (!this.reservedContainer
.getContainer()
.getId()
.getApplicationAttemptId()
.equals(reservedContainer.getContainer().getId().getApplicationAttemptId())) {
throw new IllegalStateException(
"Trying to reserve"
+ " container "
+ reservedContainer
+ " for application "
+ application.getApplicationAttemptId()
+ " when currently"
+ " reserved container "
+ this.reservedContainer
+ " on node "
+ this);
}
if (LOG.isDebugEnabled()) {
LOG.debug(
"Updated reserved container "
+ reservedContainer.getContainer().getId()
+ " on node "
+ this
+ " for application attempt "
+ application.getApplicationAttemptId());
}
} else {
if (LOG.isDebugEnabled()) {
LOG.debug(
"Reserved container "
+ reservedContainer.getContainer().getId()
+ " on node "
+ this
+ " for application attempt "
+ application.getApplicationAttemptId());
}
}
this.reservedContainer = reservedContainer;
}