/**
* 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.pig.backend.hadoop.executionengine.tez.runtime;
import java.io.IOException;
import java.util.List;
import org.apache.hadoop.mapreduce.JobContext;
import org.apache.hadoop.mapreduce.JobStatus.State;
import org.apache.hadoop.mapreduce.OutputCommitter;
import org.apache.hadoop.mapreduce.TaskAttemptContext;
import org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputCommitter;
import org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat;
import org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POStore;
import org.apache.pig.impl.util.UDFContext;
public class PigOutputFormatTez extends PigOutputFormat {
@Override
public OutputCommitter getOutputCommitter(
TaskAttemptContext taskattemptcontext) throws IOException,
InterruptedException {
setupUdfEnvAndStores(taskattemptcontext);
// we return an instance of PigOutputCommitterTez (PIG-4202) to Hadoop - this instance
// will wrap the real OutputCommitter(s) belonging to the store(s)
return new PigOutputCommitterTez(taskattemptcontext,
mapStores,
reduceStores);
}
public static class PigOutputCommitterTez extends PigOutputCommitter {
public PigOutputCommitterTez(TaskAttemptContext context,
List<POStore> mapStores, List<POStore> reduceStores)
throws IOException {
super(context, mapStores, reduceStores);
}
@Override
public void setupJob(JobContext context) throws IOException {
cleanupForContainerReuse();
try {
super.setupJob(context);
} finally {
cleanupForContainerReuse();
}
}
@Override
public void commitJob(JobContext context) throws IOException {
cleanupForContainerReuse();
try {
super.commitJob(context);
} finally {
cleanupForContainerReuse();
}
}
@Override
public void abortJob(JobContext context, State state)
throws IOException {
cleanupForContainerReuse();
try {
super.abortJob(context, state);
} finally {
cleanupForContainerReuse();
}
}
private void cleanupForContainerReuse() {
UDFContext.getUDFContext().reset();
}
}
}