Package io.trino.execution

Class ClusterSizeMonitor

java.lang.Object

io.trino.execution.ClusterSizeMonitor

public class ClusterSizeMonitor
extends Object

Constructor Summary

Constructors

Constructor	Description
ClusterSizeMonitor(InternalNodeManager nodeManager, boolean includeCoordinator)
ClusterSizeMonitor(InternalNodeManager nodeManager, NodeSchedulerConfig nodeSchedulerConfig)

Method Summary

Modifier and Type	Method	Description
int	getRequiredWorkers()
void	start()
void	stop()
com.google.common.util.concurrent.ListenableFuture<?>	waitForMinimumWorkers(int executionMinCount, io.airlift.units.Duration executionMaxWait)	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)

ClusterSizeMonitor

public ClusterSizeMonitor(InternalNodeManager nodeManager,
                          boolean includeCoordinator)

Method Detail

start

@PostConstruct
public void start()

stop

@PreDestroy
public void stop()

waitForMinimumWorkers

public com.google.common.util.concurrent.ListenableFuture<?> waitForMinimumWorkers(int executionMinCount,
                                                                                   io.airlift.units.Duration executionMaxWait)

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.

getRequiredWorkers

public int getRequiredWorkers()