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 long	calculateLowWatermark(long maxPendingSplitsWeightPerTask)
static boolean	canAssignSplitBasedOnWeight(long currentWeight, long weightLimit, SplitWeight splitWeight)
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, long maxSplitsWeightPerNode, long maxPendingSplitsWeightPerTask, 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<Void>	toWhenHasSplitQueueSpaceFuture(List<RemoteTask> existingTasks, long weightSpaceThreshold)
static com.google.common.util.concurrent.ListenableFuture<Void>	toWhenHasSplitQueueSpaceFuture(Set<InternalNode> blockedNodes, List<RemoteTask> existingTasks, long weightSpaceThreshold)

Methods inherited from class java.lang.Object

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

Constructor Details

NodeScheduler

@Inject
public NodeScheduler(NodeSelectorFactory nodeSelectorFactory)

Method Details

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,
 long maxSplitsWeightPerNode,
 long maxPendingSplitsWeightPerTask,
 int maxUnacknowledgedSplitsPerTask,
 Set<Split> splits,
 List<RemoteTask> existingTasks,
 BucketNodeMap bucketNodeMap)

canAssignSplitBasedOnWeight

public static boolean canAssignSplitBasedOnWeight(long currentWeight,
 long weightLimit,
 SplitWeight splitWeight)

calculateLowWatermark

public static long calculateLowWatermark(long maxPendingSplitsWeightPerTask)

toWhenHasSplitQueueSpaceFuture

public static com.google.common.util.concurrent.ListenableFuture<Void> toWhenHasSplitQueueSpaceFuture(Set<InternalNode> blockedNodes,
 List<RemoteTask> existingTasks,
 long weightSpaceThreshold)

toWhenHasSplitQueueSpaceFuture

public static com.google.common.util.concurrent.ListenableFuture<Void> toWhenHasSplitQueueSpaceFuture(List<RemoteTask> existingTasks,
 long weightSpaceThreshold)