org.apache.hadoop.hive.ql.exec.tez.TezJobExecHelper Maven / Gradle / Ivy
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/**
* 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.hive.ql.exec.tez;
import java.lang.reflect.Method;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* TezJobExecHelper is a utility to safely call Tez functionality from
* common code paths. It will check if tez is available/installed before
* invoking the code.
*/
public class TezJobExecHelper {
private static final Log LOG = LogFactory.getLog(TezJobExecHelper.class.getName());
public static void killRunningJobs() {
try {
Class.forName("org.apache.tez.dag.api.DAG");
// we have tez installed
ClassLoader classLoader = TezJobExecHelper.class.getClassLoader();
Method method = classLoader.loadClass("org.apache.hadoop.hive.ql.exec.tez.TezJobMonitor")
.getMethod("killRunningJobs");
method.invoke(null, null);
}
catch (Exception e) {
// It is not available do nothing
LOG.debug("Could not stop tez dags: ", e);
}
}
}