himanshug commented on a change in pull request #5492: Native parallel batch indexing without shuffle URL: https://github.com/apache/incubator-druid/pull/5492#discussion_r203138928
########## File path: indexing-service/src/main/java/io/druid/indexing/common/task/ParallelIndexSupervisorTask.java ########## @@ -0,0 +1,541 @@ +/* + * 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 io.druid.indexing.common.task; + +import com.fasterxml.jackson.annotation.JacksonInject; +import com.fasterxml.jackson.annotation.JsonCreator; +import com.fasterxml.jackson.annotation.JsonProperty; +import com.fasterxml.jackson.jaxrs.smile.SmileMediaTypes; +import com.google.common.annotations.VisibleForTesting; +import com.google.common.base.Optional; +import com.google.common.base.Preconditions; +import com.google.common.base.Throwables; +import io.druid.client.indexing.IndexingServiceClient; +import io.druid.data.input.FiniteFirehoseFactory; +import io.druid.data.input.FirehoseFactory; +import io.druid.indexer.TaskStatus; +import io.druid.indexing.common.Counters; +import io.druid.indexing.common.TaskLock; +import io.druid.indexing.common.TaskToolbox; +import io.druid.indexing.common.actions.LockListAction; +import io.druid.indexing.common.actions.TaskActionClient; +import io.druid.indexing.common.stats.RowIngestionMetersFactory; +import io.druid.indexing.common.task.IndexTask.IndexIngestionSpec; +import io.druid.indexing.common.task.IndexTask.IndexTuningConfig; +import io.druid.indexing.common.task.ParallelIndexTaskRunner.SubTaskSpecStatus; +import io.druid.java.util.common.IAE; +import io.druid.java.util.common.ISE; +import io.druid.java.util.common.logger.Logger; +import io.druid.segment.indexing.granularity.GranularitySpec; +import io.druid.segment.realtime.appenderator.SegmentIdentifier; +import io.druid.segment.realtime.firehose.ChatHandler; +import io.druid.segment.realtime.firehose.ChatHandlerProvider; +import io.druid.segment.realtime.firehose.ChatHandlers; +import io.druid.server.security.Action; +import io.druid.server.security.AuthorizerMapper; +import io.druid.timeline.partition.NumberedShardSpec; +import org.joda.time.DateTime; +import org.joda.time.Interval; + +import javax.annotation.Nullable; +import javax.servlet.http.HttpServletRequest; +import javax.ws.rs.Consumes; +import javax.ws.rs.GET; +import javax.ws.rs.POST; +import javax.ws.rs.Path; +import javax.ws.rs.PathParam; +import javax.ws.rs.Produces; +import javax.ws.rs.core.Context; +import javax.ws.rs.core.MediaType; +import javax.ws.rs.core.Response; +import javax.ws.rs.core.Response.Status; +import java.io.IOException; +import java.util.List; +import java.util.Map; +import java.util.Map.Entry; +import java.util.SortedSet; +import java.util.stream.Collectors; + +/** + * ParallelIndexSupervisorTask is capable of running multiple subTasks for parallel indexing. This is + * applicable if the input {@link FiniteFirehoseFactory} is splittable. While this task is running, it can submit + * multiple child tasks to overlords. This task succeeds only when all its child tasks succeed; otherwise it fails. + * + * @see ParallelIndexTaskRunner + */ +public class ParallelIndexSupervisorTask extends AbstractTask implements ChatHandler +{ + static final String TYPE = "index_parallel"; + + private static final Logger log = new Logger(ParallelIndexSupervisorTask.class); + + private final ParallelIndexIngestionSpec ingestionSchema; + private final FiniteFirehoseFactory<?, ?> baseFirehoseFactory; + private final IndexingServiceClient indexingServiceClient; + private final ChatHandlerProvider chatHandlerProvider; + private final AuthorizerMapper authorizerMapper; + private final RowIngestionMetersFactory rowIngestionMetersFactory; + + private final Counters counters = new Counters(); + + private volatile ParallelIndexTaskRunner runner; + + // toolbox is initlized when run() is called, and can be used for processing HTTP endpoint requests. + private volatile TaskToolbox toolbox; + + @JsonCreator + public ParallelIndexSupervisorTask( + @JsonProperty("id") String id, + @JsonProperty("resource") TaskResource taskResource, + @JsonProperty("spec") ParallelIndexIngestionSpec ingestionSchema, + @JsonProperty("context") Map<String, Object> context, + @JacksonInject @Nullable IndexingServiceClient indexingServiceClient, // null in overlords + @JacksonInject @Nullable ChatHandlerProvider chatHandlerProvider, // null in overlords + @JacksonInject AuthorizerMapper authorizerMapper, + @JacksonInject RowIngestionMetersFactory rowIngestionMetersFactory Review comment: would it make more sense to gather some of these injects from TaskToolBox instead ? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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