avijayanhwx commented on a change in pull request #1432: URL: https://github.com/apache/hadoop-ozone/pull/1432#discussion_r492210006
########## File path: hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/DataNodeStorageConfig.java ########## @@ -0,0 +1,56 @@ +/** + * 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.hadoop.ozone.container.common; + +import org.apache.hadoop.hdds.conf.OzoneConfiguration; +import org.apache.hadoop.hdds.protocol.proto.HddsProtos.NodeType; +import org.apache.hadoop.ozone.common.Storage; + +import java.io.File; +import java.io.IOException; +import java.util.Properties; + +import static org.apache.hadoop.hdds.server.ServerUtils.getOzoneMetaDirPath; +import static org.apache.hadoop.ozone.OzoneConsts.DATANODE_STORAGE_CONFIG; + +/** + * DataNodeStorageConfig is responsible for management of the + * StorageDirectories used by the DataNode. + */ +public class DataNodeStorageConfig extends Storage { Review comment: There is already a Datanode Version file managed by the org.apache.hadoop.ozone.container.common.helpers.DatanodeVersionFile class. This is supposed to manage the clusterId, Datanode ID, layout version etc. If we create a new class to be passed into the Layout Version Manager, then we end up creating 2 Version files on disk for DN. ########## File path: hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/DataNodeStorageConfig.java ########## @@ -0,0 +1,56 @@ +/** + * 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.hadoop.ozone.container.common; + +import org.apache.hadoop.hdds.conf.OzoneConfiguration; +import org.apache.hadoop.hdds.protocol.proto.HddsProtos.NodeType; +import org.apache.hadoop.ozone.common.Storage; + +import java.io.File; +import java.io.IOException; +import java.util.Properties; + +import static org.apache.hadoop.hdds.server.ServerUtils.getOzoneMetaDirPath; +import static org.apache.hadoop.ozone.OzoneConsts.DATANODE_STORAGE_CONFIG; + +/** + * DataNodeStorageConfig is responsible for management of the + * StorageDirectories used by the DataNode. + */ +public class DataNodeStorageConfig extends Storage { + + /** + * Construct DataNodeStorageConfig. + * @throws IOException if any directories are inaccessible. + */ + public DataNodeStorageConfig(OzoneConfiguration conf) throws IOException { + super(NodeType.DATANODE, getOzoneMetaDirPath(conf), + DATANODE_STORAGE_CONFIG); + } + + public DataNodeStorageConfig(NodeType type, File root, String sdName) + throws IOException { + super(type, root, sdName); + } + + @Override + protected Properties getNodeProperties() { + // No additional properties for now. + return null; Review comment: Nit. Can we return empty list here? ########## File path: hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/protocol/StorageContainerDatanodeProtocol.java ########## @@ -84,4 +86,19 @@ SCMRegisteredResponseProto register( ContainerReportsProto containerReportsRequestProto, PipelineReportsProto pipelineReports) throws IOException; + /** + * Register Datanode. + * @param datanodeDetails - Datanode Details. + * @param nodeReport - Node Report. + * @param containerReportsRequestProto - Container Reports. + * @param layoutInfo - Layout Version Information. + * @return SCM Command. + */ + SCMRegisteredResponseProto register( Review comment: Why do we need to create a new 'register' method with Layout Version arg, without changing the existing method? We would always need a Layout Version during registering. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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