| /** |
| * 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 |
| * <p/> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p/> |
| * 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.tez.analyzer.plugins; |
| |
| import java.util.Comparator; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.util.ToolRunner; |
| import org.apache.tez.analyzer.Analyzer; |
| import org.apache.tez.analyzer.CSVResult; |
| import org.apache.tez.analyzer.Result; |
| import org.apache.tez.dag.api.TezException; |
| import org.apache.tez.history.parser.datamodel.DagInfo; |
| import org.apache.tez.history.parser.datamodel.Event; |
| import org.apache.tez.history.parser.datamodel.TaskAttemptInfo; |
| import org.apache.tez.history.parser.datamodel.VertexInfo; |
| |
| /** |
| * Helps finding the root cause of shuffle errors, e.g. which node(s) can be blamed for them. |
| */ |
| public class InputReadErrorAnalyzer extends TezAnalyzerBase implements Analyzer { |
| private final String[] headers = { "vertex:attempt", "status", "time", "node", "diagnostics" }; |
| private final CSVResult csvResult; |
| |
| public InputReadErrorAnalyzer(Configuration config) { |
| super(config); |
| csvResult = new CSVResult(headers); |
| } |
| |
| @Override |
| public void analyze(DagInfo dagInfo) throws TezException { |
| for (VertexInfo vertex : dagInfo.getVertices()) { |
| for (TaskAttemptInfo attempt : vertex.getTaskAttempts()) { |
| String terminationCause = attempt.getTerminationCause(); |
| if ("INPUT_READ_ERROR".equalsIgnoreCase(terminationCause) |
| || "OUTPUT_LOST".equalsIgnoreCase(terminationCause) |
| || "NODE_FAILED".equalsIgnoreCase(terminationCause)) { |
| for (Event event : attempt.getEvents()) { |
| if (event.getType().equalsIgnoreCase("TASK_ATTEMPT_FINISHED")) { |
| csvResult.addRecord(new String[] { |
| vertex.getVertexName() + ":" + attempt.getTaskAttemptId(), |
| attempt.getDetailedStatus(), String.valueOf(event.getTime()), attempt.getNodeId(), |
| attempt.getDiagnostics().replaceAll(",", " ").replaceAll("\n", " ") }); |
| } |
| } |
| } |
| } |
| } |
| |
| csvResult.sort(new Comparator<String[]>() { |
| public int compare(String[] first, String[] second) { |
| return (int) (Long.parseLong(second[2]) - Long.parseLong(first[2])); |
| } |
| }); |
| } |
| |
| @Override |
| public Result getResult() throws TezException { |
| return csvResult; |
| } |
| |
| @Override |
| public String getName() { |
| return "Input read error analyzer"; |
| } |
| |
| @Override |
| public String getDescription() { |
| return "Prints every task attempt (with node) which are related to input read errors"; |
| } |
| |
| public static void main(String[] args) throws Exception { |
| Configuration config = new Configuration(); |
| InputReadErrorAnalyzer analyzer = new InputReadErrorAnalyzer(config); |
| int res = ToolRunner.run(config, analyzer, args); |
| analyzer.printResults(); |
| System.exit(res); |
| } |
| } |