Jackie-Jiang commented on a change in pull request #4269: Add interface and implementations for the new segment assignment URL: https://github.com/apache/incubator-pinot/pull/4269#discussion_r292265931
########## File path: pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/assignment/InstancePartitions.java ########## @@ -0,0 +1,98 @@ +/** + * 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.pinot.controller.helix.core.assignment; + +import com.fasterxml.jackson.annotation.JsonIgnore; +import java.util.List; +import java.util.Map; +import java.util.TreeMap; +import org.apache.helix.ZNRecord; + + +/** + * Instance (server) partitions for the table. + * + * <p>The instance partitions is stored as a map from partition of the format: {@code <partitionId>_<replicaId>} to + * list of server instances, and is persisted under the ZK path: {@code <cluster>/PROPERTYSTORE/INSTANCE_PARTITIONS}. + * <p>The segment assignment will be based on the instance partitions of the table. + */ +public class InstancePartitions { + private static final char SPLITTER = '_'; + + private final String _tableNameWithType; + private final Map<String, List<String>> _partitionToInstancesMap; + private int _numPartitions; Review comment: We support partitioning for replicas. Within a replica, each partition can have a subset of servers for the replica. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to 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: commits-unsubscr...@pinot.apache.org For additional commands, e-mail: commits-h...@pinot.apache.org
