Package io.trino.execution.scheduler

Class NodeScheduler

java.lang.Object

io.trino.execution.scheduler.NodeScheduler

public class NodeScheduler
extends Object

Constructor Summary

Constructors

Constructor	Description
NodeScheduler(NodeSelectorFactory nodeSelectorFactory)

Method Summary

Modifier and Type	Method	Description
static int	calculateLowWatermark(int maxPendingSplitsPerTask)
NodeSelector	createNodeSelector(Session session, Optional<CatalogName> catalogName)
static List<InternalNode>	getAllNodes(NodeMap nodeMap, boolean includeCoordinator)
static ResettableRandomizedIterator<InternalNode>	randomizedNodes(NodeMap nodeMap, boolean includeCoordinator, Set<InternalNode> excludedNodes)
static SplitPlacementResult	selectDistributionNodes(NodeMap nodeMap, NodeTaskMap nodeTaskMap, int maxSplitsPerNode, int maxPendingSplitsPerTask, int maxUnacknowledgedSplitsPerTask, Set<Split> splits, List<RemoteTask> existingTasks, BucketNodeMap bucketNodeMap)
static List<InternalNode>	selectExactNodes(NodeMap nodeMap, List<HostAddress> hosts, boolean includeCoordinator)
static List<InternalNode>	selectNodes(int limit, Iterator<InternalNode> candidates)
static com.google.common.util.concurrent.ListenableFuture<?>	toWhenHasSplitQueueSpaceFuture(List<RemoteTask> existingTasks, int spaceThreshold)
static com.google.common.util.concurrent.ListenableFuture<?>	toWhenHasSplitQueueSpaceFuture(Set<InternalNode> blockedNodes, List<RemoteTask> existingTasks, int spaceThreshold)

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeScheduler

@Inject
public NodeScheduler(NodeSelectorFactory nodeSelectorFactory)

Method Detail

createNodeSelector

public NodeSelector createNodeSelector(Session session,
                                       Optional<CatalogName> catalogName)

getAllNodes

public static List<InternalNode> getAllNodes(NodeMap nodeMap,
                                             boolean includeCoordinator)

selectNodes

public static List<InternalNode> selectNodes(int limit,
                                             Iterator<InternalNode> candidates)

randomizedNodes

public static ResettableRandomizedIterator<InternalNode> randomizedNodes(NodeMap nodeMap,
                                                                         boolean includeCoordinator,
                                                                         Set<InternalNode> excludedNodes)

selectExactNodes

public static List<InternalNode> selectExactNodes(NodeMap nodeMap,
                                                  List<HostAddress> hosts,
                                                  boolean includeCoordinator)

selectDistributionNodes

public static SplitPlacementResult selectDistributionNodes(NodeMap nodeMap,
                                                           NodeTaskMap nodeTaskMap,
                                                           int maxSplitsPerNode,
                                                           int maxPendingSplitsPerTask,
                                                           int maxUnacknowledgedSplitsPerTask,
                                                           Set<Split> splits,
                                                           List<RemoteTask> existingTasks,
                                                           BucketNodeMap bucketNodeMap)

calculateLowWatermark

public static int calculateLowWatermark(int maxPendingSplitsPerTask)

toWhenHasSplitQueueSpaceFuture

public static com.google.common.util.concurrent.ListenableFuture<?> toWhenHasSplitQueueSpaceFuture(Set<InternalNode> blockedNodes,
                                                                                                   List<RemoteTask> existingTasks,
                                                                                                   int spaceThreshold)

toWhenHasSplitQueueSpaceFuture

public static com.google.common.util.concurrent.ListenableFuture<?> toWhenHasSplitQueueSpaceFuture(List<RemoteTask> existingTasks,
                                                                                                   int spaceThreshold)