[GitHub] [iotdb] THUMarkLau commented on a diff in pull request #7136: [IOTDB-3455] Make data_region_num takes effect in new standalone

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THUMarkLau commented on code in PR #7136:
URL: https://github.com/apache/iotdb/pull/7136#discussion_r969099135


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server/src/main/java/org/apache/iotdb/db/localconfignode/LocalDataPartitionInfo.java:
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@@ -0,0 +1,110 @@
+/*
+ * 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.iotdb.db.localconfignode;
+
+import org.apache.iotdb.commons.consensus.DataRegionId;
+import org.apache.iotdb.commons.exception.IllegalPathException;
+import org.apache.iotdb.commons.path.PartialPath;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+// This class is used for data partition maintaining the map between storage group and
+// dataRegionIds.
+public class LocalDataPartitionInfo {

Review Comment:
   In IoTDB ConfigNode, the DataPartitionTable and PartitionInfo classes are used to record the data partition, so this design is borrowed in LocalConfigNode. Table is global and records the mapping between a logical storage group and PartitionInfo. Info is one for each logical storage group and records the mapping between each device in the logical storage group and the DataRegion.



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