Package io.trino.server.remotetask

Class TaskInfoFetcher

java.lang.Object

io.trino.server.remotetask.TaskInfoFetcher

public class TaskInfoFetcher
extends Object

Constructor Summary

Constructors

Constructor

Description

TaskInfoFetcher(Consumer<Throwable> onFail, io.trino.server.remotetask.ContinuousTaskStatusFetcher taskStatusFetcher, TaskInfo initialTask, io.airlift.http.client.HttpClient httpClient, Supplier<io.opentelemetry.api.trace.SpanBuilder> spanBuilderFactory, io.airlift.units.Duration updateInterval, io.airlift.json.JsonCodec<TaskInfo> taskInfoCodec, io.airlift.units.Duration maxErrorDuration, boolean summarizeTaskInfo, Executor executor, ScheduledExecutorService updateScheduledExecutor, ScheduledExecutorService errorScheduledExecutor, RemoteTaskStats stats, Optional<io.airlift.units.DataSize> estimatedMemory, RetryPolicy retryPolicy)

Method Summary

Modifier and Type	Method	Description
void	addFinalTaskInfoListener(StateMachine.StateChangeListener<TaskInfo> stateChangeListener)	Add a listener for the final task info.
TaskInfo	getTaskInfo()
Optional<SpoolingOutputStats.Snapshot>	retrieveAndDropSpoolingOutputStats()
void	start()

Methods inherited from class java.lang.Object

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

Constructor Details

TaskInfoFetcher

public TaskInfoFetcher(Consumer<Throwable> onFail,
 io.trino.server.remotetask.ContinuousTaskStatusFetcher taskStatusFetcher,
 TaskInfo initialTask,
 io.airlift.http.client.HttpClient httpClient,
 Supplier<io.opentelemetry.api.trace.SpanBuilder> spanBuilderFactory,
 io.airlift.units.Duration updateInterval,
 io.airlift.json.JsonCodec<TaskInfo> taskInfoCodec,
 io.airlift.units.Duration maxErrorDuration,
 boolean summarizeTaskInfo,
 Executor executor,
 ScheduledExecutorService updateScheduledExecutor,
 ScheduledExecutorService errorScheduledExecutor,
 RemoteTaskStats stats,
 Optional<io.airlift.units.DataSize> estimatedMemory,
 RetryPolicy retryPolicy)

Method Details

getTaskInfo

public TaskInfo getTaskInfo()

start

public void start()

addFinalTaskInfoListener

public void addFinalTaskInfoListener(StateMachine.StateChangeListener<TaskInfo> stateChangeListener)

Add a listener for the final task info. This notification is guaranteed to be fired only once. Listener is always notified asynchronously using a dedicated notification thread pool so, care should be taken to avoid leaking this when adding a listener in a constructor. Additionally, it is possible notifications are observed out of order due to the asynchronous execution.

retrieveAndDropSpoolingOutputStats

public Optional<SpoolingOutputStats.Snapshot> retrieveAndDropSpoolingOutputStats()