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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* 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
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
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.execution.ExecutionState;
import org.apache.flink.runtime.executiongraph.AccessExecution;
import org.apache.flink.runtime.executiongraph.AccessExecutionGraph;
import org.apache.flink.runtime.executiongraph.AccessExecutionJobVertex;
import org.apache.flink.runtime.executiongraph.AccessExecutionVertex;
import org.apache.flink.runtime.executiongraph.ExecutionJobVertex;
import org.apache.flink.runtime.jobgraph.JobVertexID;
import org.apache.flink.runtime.rest.NotFoundException;
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.handler.util.MutableIOMetrics;
import org.apache.flink.runtime.rest.messages.AggregatedTaskDetailsInfo;
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.JobVertexMessageParameters;
import org.apache.flink.runtime.rest.messages.JobVertexTaskManagersInfo;
import org.apache.flink.runtime.rest.messages.MessageHeaders;
import org.apache.flink.runtime.rest.messages.ResponseBody;
import org.apache.flink.runtime.rest.messages.job.StatusDurationUtils;
import org.apache.flink.runtime.rest.messages.job.metrics.IOMetricsInfo;
import org.apache.flink.runtime.taskmanager.TaskManagerLocation;
import org.apache.flink.runtime.webmonitor.RestfulGateway;
import org.apache.flink.runtime.webmonitor.history.ArchivedJson;
import org.apache.flink.runtime.webmonitor.history.OnlyExecutionGraphJsonArchivist;
import org.apache.flink.runtime.webmonitor.retriever.GatewayRetriever;
import org.apache.flink.util.Preconditions;
import javax.annotation.Nullable;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.Executor;
import java.util.stream.Collectors;
/**
* A request handler that provides the details of a job vertex, including id, name, and the runtime
* and metrics of all its subtasks aggregated by TaskManager.
*/
public class JobVertexTaskManagersHandler
extends AbstractAccessExecutionGraphHandler<
JobVertexTaskManagersInfo, JobVertexMessageParameters>
implements OnlyExecutionGraphJsonArchivist {
private MetricFetcher metricFetcher;
public JobVertexTaskManagersHandler(
GatewayRetriever leaderRetriever,
Time timeout,
Map responseHeaders,
MessageHeaders
messageHeaders,
ExecutionGraphCache executionGraphCache,
Executor executor,
MetricFetcher metricFetcher) {
super(
leaderRetriever,
timeout,
responseHeaders,
messageHeaders,
executionGraphCache,
executor);
this.metricFetcher = Preconditions.checkNotNull(metricFetcher);
}
@Override
protected JobVertexTaskManagersInfo handleRequest(
HandlerRequest request, AccessExecutionGraph executionGraph)
throws RestHandlerException {
JobID jobID = request.getPathParameter(JobIDPathParameter.class);
JobVertexID jobVertexID = request.getPathParameter(JobVertexIdPathParameter.class);
AccessExecutionJobVertex jobVertex = executionGraph.getJobVertex(jobVertexID);
if (jobVertex == null) {
throw new NotFoundException(String.format("JobVertex %s not found", jobVertexID));
}
return createJobVertexTaskManagersInfo(jobVertex, jobID, metricFetcher);
}
@Override
public Collection archiveJsonWithPath(AccessExecutionGraph graph)
throws IOException {
Collection vertices = graph.getAllVertices().values();
List archive = new ArrayList<>(vertices.size());
for (AccessExecutionJobVertex task : vertices) {
ResponseBody json = createJobVertexTaskManagersInfo(task, graph.getJobID(), null);
String path =
getMessageHeaders()
.getTargetRestEndpointURL()
.replace(':' + JobIDPathParameter.KEY, graph.getJobID().toString())
.replace(
':' + JobVertexIdPathParameter.KEY,
task.getJobVertexId().toString());
archive.add(new ArchivedJson(path, json));
}
return archive;
}
private static JobVertexTaskManagersInfo createJobVertexTaskManagersInfo(
AccessExecutionJobVertex jobVertex,
JobID jobID,
@Nullable MetricFetcher metricFetcher) {
// Build a map that groups task executions by TaskManager
Map taskManagerId2Host = new HashMap<>();
Map> taskManagerExecutions = new HashMap<>();
Set representativeExecutions = new HashSet<>();
for (AccessExecutionVertex vertex : jobVertex.getTaskVertices()) {
AccessExecution representativeAttempt = vertex.getCurrentExecutionAttempt();
representativeExecutions.add(representativeAttempt);
for (AccessExecution execution : vertex.getCurrentExecutions()) {
TaskManagerLocation location = execution.getAssignedResourceLocation();
String taskManagerHost =
location == null
? "(unassigned)"
: location.getHostname() + ':' + location.dataPort();
String taskmanagerId =
location == null ? "(unassigned)" : location.getResourceID().toString();
taskManagerId2Host.put(taskmanagerId, taskManagerHost);
List executions =
taskManagerExecutions.computeIfAbsent(
taskmanagerId, ignored -> new ArrayList<>());
executions.add(execution);
}
}
final long now = System.currentTimeMillis();
List taskManagersInfoList = new ArrayList<>(4);
for (Map.Entry> entry : taskManagerExecutions.entrySet()) {
String taskmanagerId = entry.getKey();
String host = taskManagerId2Host.get(taskmanagerId);
List executions = entry.getValue();
List ioMetricsInfos = new ArrayList<>();
List> status =
executions.stream()
.map(StatusDurationUtils::getExecutionStateDuration)
.collect(Collectors.toList());
// executionsPerState counts attempts of a subtask separately
int[] executionsPerState = new int[ExecutionState.values().length];
// tasksPerState counts only the representative attempts, and is used to aggregate the
// task manager state
int[] tasksPerState = new int[ExecutionState.values().length];
long startTime = Long.MAX_VALUE;
long endTime = 0;
boolean allFinished = true;
MutableIOMetrics counts = new MutableIOMetrics();
int representativeAttemptsCount = 0;
for (AccessExecution execution : executions) {
final ExecutionState state = execution.getState();
executionsPerState[state.ordinal()]++;
if (representativeExecutions.contains(execution)) {
tasksPerState[state.ordinal()]++;
representativeAttemptsCount++;
}
// take the earliest start time
long started = execution.getStateTimestamp(ExecutionState.DEPLOYING);
if (started > 0) {
startTime = Math.min(startTime, started);
}
allFinished &= state.isTerminal();
endTime = Math.max(endTime, execution.getStateTimestamp(state));
counts.addIOMetrics(
execution,
metricFetcher,
jobID.toString(),
jobVertex.getJobVertexId().toString());
MutableIOMetrics current = new MutableIOMetrics();
current.addIOMetrics(
execution,
metricFetcher,
jobID.toString(),
jobVertex.getJobVertexId().toString());
ioMetricsInfos.add(
new IOMetricsInfo(
current.getNumBytesIn(),
current.isNumBytesInComplete(),
current.getNumBytesOut(),
current.isNumBytesOutComplete(),
current.getNumRecordsIn(),
current.isNumRecordsInComplete(),
current.getNumRecordsOut(),
current.isNumRecordsOutComplete(),
current.getAccumulateBackPressuredTime(),
current.getAccumulateIdleTime(),
current.getAccumulateBusyTime()));
}
long duration;
if (startTime < Long.MAX_VALUE) {
if (allFinished) {
duration = endTime - startTime;
} else {
endTime = -1L;
duration = now - startTime;
}
} else {
startTime = -1L;
endTime = -1L;
duration = -1L;
}
// Safe when tasksPerState are all zero and representativeAttemptsCount is zero
ExecutionState jobVertexState =
ExecutionJobVertex.getAggregateJobVertexState(
tasksPerState, representativeAttemptsCount);
final IOMetricsInfo jobVertexMetrics =
new IOMetricsInfo(
counts.getNumBytesIn(),
counts.isNumBytesInComplete(),
counts.getNumBytesOut(),
counts.isNumBytesOutComplete(),
counts.getNumRecordsIn(),
counts.isNumRecordsInComplete(),
counts.getNumRecordsOut(),
counts.isNumRecordsOutComplete(),
counts.getAccumulateBackPressuredTime(),
counts.getAccumulateIdleTime(),
counts.getAccumulateBusyTime());
Map statusCounts =
new HashMap<>(ExecutionState.values().length);
for (ExecutionState state : ExecutionState.values()) {
statusCounts.put(state, executionsPerState[state.ordinal()]);
}
taskManagersInfoList.add(
new JobVertexTaskManagersInfo.TaskManagersInfo(
host,
jobVertexState,
startTime,
endTime,
duration,
jobVertexMetrics,
statusCounts,
taskmanagerId,
AggregatedTaskDetailsInfo.create(ioMetricsInfos, status)));
}
return new JobVertexTaskManagersInfo(
jobVertex.getJobVertexId(), jobVertex.getName(), now, taskManagersInfoList);
}
}
