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_r201891892
########## File path: indexing-service/src/main/java/io/druid/indexing/common/task/ParallelIndexTaskRunner.java ########## @@ -0,0 +1,32 @@ +/* + * Licensed to Metamarkets Group Inc. (Metamarkets) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. Metamarkets 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 io.druid.indexer.TaskState; +import io.druid.indexing.common.TaskToolbox; + +/** + * ParallelIndexTaskRunner is the actual task runner of {@link ParallelIndexSupervisorTask}. There is currently a single + * implementation, i.e. {@link SinglePhaseParallelIndexTaskRunner} which supports only best-effort roll-up. We can add + * more implementations in the future. + */ +public interface ParallelIndexTaskRunner +{ + TaskState run(TaskToolbox toolbox) throws Exception; Review comment: So, `ParallelIndexTaskRunner` is the one actually processing the task. It can have multiple implementations based on the distributed indexing algorithm described in https://github.com/apache/incubator-druid/issues/5543. ---------------------------------------------------------------- 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
