| /* |
| * 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.chukwa.inputtools.hdfsusage; |
| |
| import java.net.URI; |
| |
| import org.apache.hadoop.chukwa.inputtools.jplugin.ChukwaMetricsList; |
| import org.apache.hadoop.chukwa.inputtools.jplugin.JPlugin; |
| import org.apache.hadoop.chukwa.inputtools.jplugin.JPluginStatusMetricsList; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| |
| public class HDFSUsagePlugin implements JPlugin<HDFSUsageMetrics> { |
| private FileSystem hdfs; |
| private String path; |
| private OrgChart chart; |
| |
| @Override |
| public ChukwaMetricsList<HDFSUsageMetrics> getMetrics() throws Throwable { |
| ChukwaMetricsList<HDFSUsageMetrics> metricsList = new ChukwaMetricsList<HDFSUsageMetrics>(getRecordType()); |
| FileStatus status[] = hdfs.globStatus(new Path(path)); |
| for(int i=0; i<status.length; i++) { |
| long totalSize = hdfs.getContentSummary(status[i].getPath()).getLength(); |
| if(totalSize <= 0) { |
| continue; |
| } |
| String name = status[i].getPath().getName(); |
| HDFSUsageMetrics usage = new HDFSUsageMetrics(); |
| usage.setName(name); |
| usage.setSize(totalSize); |
| usage.setLastModified(status[i].getModificationTime()); |
| metricsList.addMetrics(usage); |
| |
| // also contribute to manager's usage |
| if(chart != null) { |
| Employee employee = chart.get(name); |
| if(employee != null) { |
| employee = employee.getManager(); |
| while(employee != null) { |
| HDFSUsageMetrics managerUsage = new HDFSUsageMetrics(); |
| managerUsage.setName(employee.getId()); |
| managerUsage.setSize(totalSize); |
| metricsList.addMetrics(managerUsage); |
| employee = employee.getManager(); |
| } |
| } |
| } |
| } |
| return metricsList; |
| } |
| |
| @Override |
| public void init(String[] args) throws Throwable { |
| for(int i=0; i<args.length; i++) { |
| if(args[i].equals("-c")) { |
| String orgChartClass = args[i+1]; |
| chart = (OrgChart) Class.forName(orgChartClass).newInstance(); |
| i++; |
| } else if(args[i].equals("-h")) { |
| Configuration conf = new Configuration(); |
| hdfs = FileSystem.get(new URI(args[i+1]), conf); |
| i++; |
| } else if(args[i].equals("-p")) { |
| path = args[i+1]; |
| i++; |
| } |
| } |
| |
| if(hdfs == null) { |
| Configuration conf = new Configuration(); |
| hdfs = FileSystem.get(conf); |
| } |
| |
| if(path == null) { |
| path = "/user/*"; |
| } |
| } |
| |
| @Override |
| public JPluginStatusMetricsList getStatus() throws Throwable { |
| JPluginStatusMetricsList list = new JPluginStatusMetricsList(this.getClass().getSimpleName()); |
| list.addStatus("hdfs", hdfs.getUri().toString()); |
| list.addStatus("path", path); |
| return null; |
| } |
| |
| @Override |
| public String getRecordType() { |
| return "HDFSUsage"; |
| } |
| } |