io.prestosql.execution

Class ClusterSizeMonitor

java.lang.Object

io.prestosql.execution.ClusterSizeMonitor

public class ClusterSizeMonitor
extends Object

Constructor Summary

Constructors

Constructor and Description
ClusterSizeMonitor(InternalNodeManager nodeManager, boolean includeCoordinator, int executionMinCount, io.airlift.units.Duration executionMaxWait)
ClusterSizeMonitor(InternalNodeManager nodeManager, NodeSchedulerConfig nodeSchedulerConfig, QueryManagerConfig queryManagerConfig)

Method Summary

Modifier and Type	Method and Description
void	start()
void	stop()
com.google.common.util.concurrent.ListenableFuture<?>	waitForMinimumWorkers() Returns a listener that completes when the minimum number of workers for the cluster has been met.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ClusterSizeMonitor

@Inject
public ClusterSizeMonitor(InternalNodeManager nodeManager,
                                  NodeSchedulerConfig nodeSchedulerConfig,
                                  QueryManagerConfig queryManagerConfig)

ClusterSizeMonitor

public ClusterSizeMonitor(InternalNodeManager nodeManager,
                          boolean includeCoordinator,
                          int executionMinCount,
                          io.airlift.units.Duration executionMaxWait)

Method Detail

start

@PostConstruct
public void start()

stop

@PreDestroy
public void stop()

waitForMinimumWorkers

public com.google.common.util.concurrent.ListenableFuture<?> waitForMinimumWorkers()

Returns a listener that completes when the minimum number of workers for the cluster has been met. Note: caller should not add a listener using the direct executor, as this can delay the notifications for other listeners.