| /** |
| * 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.yarn.server.resourcemanager.nodelabels; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.security.UserGroupInformation; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.exceptions.YarnException; |
| import org.apache.hadoop.yarn.nodelabels.NodeAttributeStore; |
| import org.apache.hadoop.yarn.nodelabels.NodeAttributesManager; |
| import org.apache.hadoop.yarn.nodelabels.store.AbstractFSNodeStore; |
| import org.apache.hadoop.yarn.nodelabels.store.FSStoreOpHandler; |
| import org.apache.hadoop.yarn.nodelabels.store.op.AddNodeToAttributeLogOp; |
| import org.apache.hadoop.yarn.nodelabels.store.op.RemoveNodeToAttributeLogOp; |
| import org.apache.hadoop.yarn.nodelabels.store.op.ReplaceNodeToAttributeLogOp; |
| import org.apache.hadoop.yarn.server.api.protocolrecords.NodeToAttributes; |
| |
| import java.io.IOException; |
| import java.util.List; |
| |
| /** |
| * File system node attribute implementation. |
| */ |
| public class FileSystemNodeAttributeStore |
| extends AbstractFSNodeStore<NodeAttributesManager> |
| implements NodeAttributeStore { |
| |
| protected static final Logger LOG = |
| LoggerFactory.getLogger(FileSystemNodeAttributeStore.class); |
| |
| protected static final String DEFAULT_DIR_NAME = "node-attribute"; |
| protected static final String MIRROR_FILENAME = "nodeattribute.mirror"; |
| protected static final String EDITLOG_FILENAME = "nodeattribute.editlog"; |
| |
| public FileSystemNodeAttributeStore() { |
| super(FSStoreOpHandler.StoreType.NODE_ATTRIBUTE); |
| } |
| |
| private String getDefaultFSNodeAttributeRootDir() throws IOException { |
| // default is in local: /tmp/hadoop-yarn-${user}/node-attribute/ |
| return "file:///tmp/hadoop-yarn-" + UserGroupInformation.getCurrentUser() |
| .getShortUserName() + "/" + DEFAULT_DIR_NAME; |
| } |
| |
| @Override |
| public void init(Configuration conf, NodeAttributesManager mgr) |
| throws Exception { |
| StoreSchema schema = new StoreSchema(EDITLOG_FILENAME, MIRROR_FILENAME); |
| initStore(conf, new Path( |
| conf.get(YarnConfiguration.FS_NODE_ATTRIBUTE_STORE_ROOT_DIR, |
| getDefaultFSNodeAttributeRootDir())), schema, mgr); |
| } |
| |
| @Override |
| public void replaceNodeAttributes(List<NodeToAttributes> nodeToAttribute) |
| throws IOException { |
| ReplaceNodeToAttributeLogOp op = new ReplaceNodeToAttributeLogOp(); |
| writeToLog(op.setAttributes(nodeToAttribute)); |
| } |
| |
| @Override |
| public void addNodeAttributes(List<NodeToAttributes> nodeAttributeMapping) |
| throws IOException { |
| AddNodeToAttributeLogOp op = new AddNodeToAttributeLogOp(); |
| writeToLog(op.setAttributes(nodeAttributeMapping)); |
| } |
| |
| @Override |
| public void removeNodeAttributes(List<NodeToAttributes> nodeAttributeMapping) |
| throws IOException { |
| RemoveNodeToAttributeLogOp op = new RemoveNodeToAttributeLogOp(); |
| writeToLog(op.setAttributes(nodeAttributeMapping)); |
| } |
| |
| @Override |
| public void recover() throws IOException, YarnException { |
| super.recoverFromStore(); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| super.closeFSStore(); |
| } |
| } |