| /** |
| * 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.contrib.failmon; |
| |
| import java.util.ArrayList; |
| |
| /********************************************************** |
| * Runs a set of monitoring jobs once for the local node. The set of |
| * jobs to be run is the intersection of the jobs specifed in the |
| * configuration file and the set of jobs specified in the --only |
| * command line argument. |
| **********************************************************/ |
| |
| public class RunOnce { |
| |
| LocalStore lstore; |
| |
| ArrayList<MonitorJob> monitors; |
| |
| boolean uploading = true; |
| |
| public RunOnce(String confFile) { |
| |
| Environment.prepare(confFile); |
| |
| String localTmpDir; |
| |
| // running as a stand-alone application |
| localTmpDir = System.getProperty("java.io.tmpdir"); |
| Environment.setProperty("local.tmp.dir", localTmpDir); |
| |
| monitors = Environment.getJobs(); |
| lstore = new LocalStore(); |
| uploading = true; |
| } |
| |
| private void filter (String [] ftypes) { |
| ArrayList<MonitorJob> filtered = new ArrayList<MonitorJob>(); |
| boolean found; |
| |
| // filter out unwanted monitor jobs |
| for (MonitorJob job : monitors) { |
| found = false; |
| for (String ftype : ftypes) |
| if (job.type.equalsIgnoreCase(ftype)) |
| found = true; |
| if (found) |
| filtered.add(job); |
| } |
| |
| // disable uploading if not requested |
| found = false; |
| for (String ftype : ftypes) |
| if (ftype.equalsIgnoreCase("upload")) |
| found = true; |
| |
| if (!found) |
| uploading = false; |
| |
| monitors = filtered; |
| } |
| |
| private void run() { |
| |
| Environment.logInfo("Failmon started successfully."); |
| |
| for (int i = 0; i < monitors.size(); i++) { |
| Environment.logInfo("Calling " + monitors.get(i).job.getInfo() + "...\t"); |
| monitors.get(i).job.monitor(lstore); |
| } |
| |
| if (uploading) |
| lstore.upload(); |
| |
| lstore.close(); |
| } |
| |
| public void cleanup() { |
| // nothing to be done |
| } |
| |
| |
| public static void main (String [] args) { |
| |
| String configFilePath = "./conf/failmon.properties"; |
| String [] onlyList = null; |
| |
| // Parse command-line parameters |
| for (int i = 0; i < args.length - 1; i++) { |
| if (args[i].equalsIgnoreCase("--config")) |
| configFilePath = args[i + 1]; |
| else if (args[i].equalsIgnoreCase("--only")) |
| onlyList = args[i + 1].split(","); |
| } |
| |
| RunOnce ro = new RunOnce(configFilePath); |
| // only keep the requested types of jobs |
| if (onlyList != null) |
| ro.filter(onlyList); |
| // run once only |
| ro.run(); |
| } |
| |
| } |