| /** |
| * 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.tez.runtime.api.impl; |
| |
| import java.nio.ByteBuffer; |
| import java.util.Arrays; |
| import java.util.Map; |
| |
| import org.apache.hadoop.classification.InterfaceAudience.Private; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.util.StringUtils; |
| import org.apache.hadoop.yarn.api.records.ApplicationId; |
| import org.apache.hadoop.yarn.util.AuxiliaryServiceHelper; |
| import org.apache.tez.common.TezJobConfig; |
| import org.apache.tez.common.counters.TezCounters; |
| import org.apache.tez.dag.records.TezTaskAttemptID; |
| import org.apache.tez.runtime.RuntimeTask; |
| import org.apache.tez.runtime.api.TezTaskContext; |
| |
| public abstract class TezTaskContextImpl implements TezTaskContext { |
| |
| private final Configuration conf; |
| protected final String taskVertexName; |
| protected final TezTaskAttemptID taskAttemptID; |
| private final TezCounters counters; |
| private String[] workDirs; |
| protected String uniqueIdentifier; |
| protected final RuntimeTask runtimeTask; |
| protected final TezUmbilical tezUmbilical; |
| private final Map<String, ByteBuffer> serviceConsumerMetadata; |
| private final int appAttemptNumber; |
| |
| @Private |
| public TezTaskContextImpl(Configuration conf, int appAttemptNumber, |
| String taskVertexName, TezTaskAttemptID taskAttemptID, |
| TezCounters counters, RuntimeTask runtimeTask, |
| TezUmbilical tezUmbilical, Map<String, ByteBuffer> serviceConsumerMetadata) { |
| this.conf = conf; |
| this.taskVertexName = taskVertexName; |
| this.taskAttemptID = taskAttemptID; |
| this.counters = counters; |
| // TODO Maybe change this to be task id specific at some point. For now |
| // Shuffle code relies on this being a path specified by YARN |
| this.workDirs = this.conf.getStrings(TezJobConfig.LOCAL_DIRS); |
| this.runtimeTask = runtimeTask; |
| this.tezUmbilical = tezUmbilical; |
| this.serviceConsumerMetadata = serviceConsumerMetadata; |
| // TODO NEWTEZ at some point dag attempt should not map to app attempt |
| this.appAttemptNumber = appAttemptNumber; |
| } |
| |
| @Override |
| public ApplicationId getApplicationId() { |
| return taskAttemptID.getTaskID().getVertexID().getDAGId() |
| .getApplicationId(); |
| } |
| |
| @Override |
| public int getTaskIndex() { |
| return taskAttemptID.getTaskID().getId(); |
| } |
| |
| @Override |
| public int getDAGAttemptNumber() { |
| return appAttemptNumber; |
| } |
| |
| @Override |
| public int getTaskAttemptNumber() { |
| return taskAttemptID.getId(); |
| } |
| |
| @Override |
| public String getDAGName() { |
| // TODO NEWTEZ Change to some form of the DAG name, for now using dagId as |
| // the unique identifier. |
| return taskAttemptID.getTaskID().getVertexID().getDAGId().toString(); |
| } |
| |
| @Override |
| public String getTaskVertexName() { |
| return taskVertexName; |
| } |
| |
| |
| @Override |
| public TezCounters getCounters() { |
| return counters; |
| } |
| |
| @Override |
| public String[] getWorkDirs() { |
| return Arrays.copyOf(workDirs, workDirs.length); |
| } |
| |
| @Override |
| public String getUniqueIdentifier() { |
| return uniqueIdentifier; |
| } |
| |
| @Override |
| public ByteBuffer getServiceConsumerMetaData(String serviceName) { |
| return (ByteBuffer) serviceConsumerMetadata.get(serviceName) |
| .asReadOnlyBuffer().rewind(); |
| } |
| |
| @Override |
| public ByteBuffer getServiceProviderMetaData(String serviceName) { |
| return AuxiliaryServiceHelper.getServiceDataFromEnv( |
| serviceName, System.getenv()); |
| } |
| |
| protected void signalFatalError(Throwable t, String message, |
| EventMetaData sourceInfo) { |
| runtimeTask.setFatalError(t, message); |
| String diagnostics; |
| if (t != null && message != null) { |
| diagnostics = "exceptionThrown=" + StringUtils.stringifyException(t) |
| + ", errorMessage=" + message; |
| } else if (t == null && message == null) { |
| diagnostics = "Unknown error"; |
| } else { |
| diagnostics = t != null ? |
| "exceptionThrown=" + StringUtils.stringifyException(t) |
| : " errorMessage=" + message; |
| } |
| tezUmbilical.signalFatalError(taskAttemptID, diagnostics, sourceInfo); |
| } |
| } |