[GitHub] [druid] sascha-coenen commented on a change in pull request #9350: Overlord to support autoscalers per indexer/middlemanager category

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sascha-coenen commented on a change in pull request #9350: Overlord to support autoscalers per indexer/middlemanager category
URL: https://github.com/apache/druid/pull/9350#discussion_r387243419
 
 

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 File path: indexing-service/src/main/java/org/apache/druid/indexing/overlord/autoscaling/CategorizedWorkerProvisioningStrategy.java
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 @@ -0,0 +1,659 @@
+/*
+ * 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.overlord.autoscaling;
+
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.google.common.base.Joiner;
+import com.google.common.base.Predicate;
+import com.google.common.base.Supplier;
+import com.google.common.collect.Collections2;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Sets;
+import com.google.inject.Inject;
+import org.apache.druid.indexing.common.task.Task;
+import org.apache.druid.indexing.overlord.ImmutableWorkerInfo;
+import org.apache.druid.indexing.overlord.WorkerTaskRunner;
+import org.apache.druid.indexing.overlord.config.WorkerTaskRunnerConfig;
+import org.apache.druid.indexing.overlord.setup.CategorizedWorkerBehaviorConfig;
+import org.apache.druid.indexing.overlord.setup.CategorizedWorkerSelectStrategy;
+import org.apache.druid.indexing.overlord.setup.WorkerBehaviorConfig;
+import org.apache.druid.indexing.overlord.setup.WorkerCategorySpec;
+import org.apache.druid.indexing.overlord.setup.WorkerSelectStrategy;
+import org.apache.druid.indexing.overlord.setup.WorkerSelectUtils;
+import org.apache.druid.indexing.worker.Worker;
+import org.apache.druid.indexing.worker.config.WorkerConfig;
+import org.apache.druid.java.util.common.DateTimes;
+import org.apache.druid.java.util.common.concurrent.ScheduledExecutors;
+import org.apache.druid.java.util.emitter.EmittingLogger;
+import org.joda.time.DateTime;
+import org.joda.time.Duration;
+
+import javax.annotation.Nullable;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.stream.Collectors;
+
+/**
+ * Autoscaler provisioning strategy based on {@link AutoScaler#getCategory()} field. It selects autoscaler based on
+ * a worker's category.
+ */
+@JsonTypeName("categorizedTaskBased")
+public class CategorizedWorkerProvisioningStrategy extends AbstractWorkerProvisioningStrategy
 
 Review comment:
   I tried to refactor the code based on the above review comments. The class CategorizedWorkerProvisioningStrategy has been removed.

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