jihoonson commented on a change in pull request #5492: Native parallel batch indexing without shuffle URL: https://github.com/apache/incubator-druid/pull/5492#discussion_r203822871
########## 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: Ok. Let me think about that and do in a follow-up PR if needed. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@druid.apache.org For additional commands, e-mail: dev-h...@druid.apache.org
