org.apache.flink.runtime.rest.handler.job.SubtaskCurrentAttemptDetailsHandler Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.flink.runtime.rest.handler.job;
import org.apache.flink.api.common.JobID;
import org.apache.flink.api.common.time.Time;
import org.apache.flink.runtime.executiongraph.AccessExecution;
import org.apache.flink.runtime.executiongraph.AccessExecutionVertex;
import org.apache.flink.runtime.jobgraph.JobVertexID;
import org.apache.flink.runtime.rest.handler.HandlerRequest;
import org.apache.flink.runtime.rest.handler.RestHandlerException;
import org.apache.flink.runtime.rest.handler.legacy.ExecutionGraphCache;
import org.apache.flink.runtime.rest.handler.legacy.metrics.MetricFetcher;
import org.apache.flink.runtime.rest.messages.EmptyRequestBody;
import org.apache.flink.runtime.rest.messages.JobIDPathParameter;
import org.apache.flink.runtime.rest.messages.JobVertexIdPathParameter;
import org.apache.flink.runtime.rest.messages.MessageHeaders;
import org.apache.flink.runtime.rest.messages.job.SubtaskExecutionAttemptDetailsInfo;
import org.apache.flink.runtime.rest.messages.job.SubtaskMessageParameters;
import org.apache.flink.runtime.webmonitor.RestfulGateway;
import org.apache.flink.runtime.webmonitor.retriever.GatewayRetriever;
import org.apache.flink.util.Preconditions;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Executor;
/** Request handler providing details about a single task execution attempt. */
public class SubtaskCurrentAttemptDetailsHandler
extends AbstractSubtaskHandler<
SubtaskExecutionAttemptDetailsInfo, SubtaskMessageParameters> {
private final MetricFetcher metricFetcher;
public SubtaskCurrentAttemptDetailsHandler(
GatewayRetriever leaderRetriever,
Time timeout,
Map responseHeaders,
MessageHeaders<
EmptyRequestBody,
SubtaskExecutionAttemptDetailsInfo,
SubtaskMessageParameters>
messageHeaders,
ExecutionGraphCache executionGraphCache,
Executor executor,
MetricFetcher metricFetcher) {
super(
leaderRetriever,
timeout,
responseHeaders,
messageHeaders,
executionGraphCache,
executor);
this.metricFetcher = Preconditions.checkNotNull(metricFetcher);
}
@Override
protected SubtaskExecutionAttemptDetailsInfo handleRequest(
HandlerRequest request, AccessExecutionVertex executionVertex)
throws RestHandlerException {
final AccessExecution execution = executionVertex.getCurrentExecutionAttempt();
final JobID jobID = request.getPathParameter(JobIDPathParameter.class);
final JobVertexID jobVertexID = request.getPathParameter(JobVertexIdPathParameter.class);
final Collection attempts = executionVertex.getCurrentExecutions();
List otherConcurrentAttempts = null;
if (attempts.size() > 1) {
otherConcurrentAttempts = new ArrayList<>();
for (AccessExecution attempt : attempts) {
if (attempt.getAttemptNumber() != execution.getAttemptNumber()) {
otherConcurrentAttempts.add(
SubtaskExecutionAttemptDetailsInfo.create(
attempt, metricFetcher, jobID, jobVertexID, null));
}
}
}
return SubtaskExecutionAttemptDetailsInfo.create(
execution, metricFetcher, jobID, jobVertexID, otherConcurrentAttempts);
}
}