| /* |
| * 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.druid.indexing.worker.shuffle; |
| |
| import com.google.common.io.ByteSource; |
| import com.google.inject.Inject; |
| import com.sun.jersey.spi.container.ResourceFilters; |
| import org.apache.druid.java.util.common.DateTimes; |
| import org.apache.druid.java.util.common.StringUtils; |
| import org.apache.druid.java.util.common.logger.Logger; |
| import org.apache.druid.server.http.security.StateResourceFilter; |
| import org.joda.time.Interval; |
| |
| import javax.ws.rs.DELETE; |
| import javax.ws.rs.GET; |
| import javax.ws.rs.Path; |
| import javax.ws.rs.PathParam; |
| import javax.ws.rs.Produces; |
| import javax.ws.rs.QueryParam; |
| import javax.ws.rs.core.MediaType; |
| import javax.ws.rs.core.Response; |
| import javax.ws.rs.core.Response.Status; |
| import javax.ws.rs.core.StreamingOutput; |
| import java.io.IOException; |
| import java.util.Optional; |
| |
| /** |
| * HTTP endpoints for shuffle system. The MiddleManager and Indexer use this resource to serve intermediary shuffle |
| * data. |
| * |
| * We use {@link StateResourceFilter} here because it performs an admin-like authorization and |
| * all endpoints here are supposed to be used for only internal communcation. |
| * Another possible alternate could be performing datasource-level authorization as in TaskResourceFilter. |
| * However, datasource information is not available in middleManagers or indexers yet which makes hard to use it. |
| * We could develop a new ResourceFileter in the future if needed. |
| */ |
| @Path("/druid/worker/v1/shuffle") |
| @ResourceFilters(StateResourceFilter.class) |
| public class ShuffleResource |
| { |
| private static final Logger log = new Logger(ShuffleResource.class); |
| |
| private final IntermediaryDataManager intermediaryDataManager; |
| private final Optional<ShuffleMetrics> shuffleMetrics; |
| |
| @Inject |
| public ShuffleResource(IntermediaryDataManager intermediaryDataManager, Optional<ShuffleMetrics> shuffleMetrics) |
| { |
| this.intermediaryDataManager = intermediaryDataManager; |
| this.shuffleMetrics = shuffleMetrics; |
| } |
| |
| @GET |
| @Path("/task/{supervisorTaskId}/{subTaskId}/partition") |
| @Produces(MediaType.APPLICATION_OCTET_STREAM) |
| public Response getPartition( |
| @PathParam("supervisorTaskId") String supervisorTaskId, |
| @PathParam("subTaskId") String subTaskId, |
| @QueryParam("startTime") String startTime, |
| @QueryParam("endTime") String endTime, |
| @QueryParam("bucketId") int bucketId |
| ) |
| { |
| final Interval interval = new Interval(DateTimes.of(startTime), DateTimes.of(endTime)); |
| final Optional<ByteSource> partitionFile = intermediaryDataManager.findPartitionFile( |
| supervisorTaskId, |
| subTaskId, |
| interval, |
| bucketId |
| ); |
| |
| if (!partitionFile.isPresent()) { |
| final String errorMessage = StringUtils.format( |
| "Can't find the partition for supervisorTask[%s], subTask[%s], interval[%s], and bucketId[%s]", |
| supervisorTaskId, |
| subTaskId, |
| interval, |
| bucketId |
| ); |
| return Response.status(Status.NOT_FOUND).entity(errorMessage).build(); |
| } else { |
| try { |
| long size = partitionFile.get().size(); |
| shuffleMetrics.ifPresent(metrics -> metrics.shuffleRequested(supervisorTaskId, size)); |
| } |
| catch (IOException ioException) { |
| log.error("Failed to get length of file for supervisorTask[%s], subTask[%s], interval[%s], and bucketId[%s]", |
| supervisorTaskId, |
| subTaskId, |
| interval, |
| bucketId |
| ); |
| } |
| return Response.ok((StreamingOutput) output -> partitionFile.get().copyTo(output)).build(); |
| } |
| } |
| |
| @DELETE |
| @Path("/task/{supervisorTaskId}") |
| public Response deletePartitions(@PathParam("supervisorTaskId") String supervisorTaskId) |
| { |
| try { |
| intermediaryDataManager.deletePartitions(supervisorTaskId); |
| return Response.ok(supervisorTaskId).build(); |
| } |
| catch (IOException e) { |
| log.error(e, "Error while deleting partitions of supervisorTask[%s]", supervisorTaskId); |
| return Response.status(Status.INTERNAL_SERVER_ERROR).entity(e.getMessage()).build(); |
| } |
| } |
| } |