Java tutorial
/** * 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.util; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.yarn.util.ResourceCalculatorProcessTree; import org.apache.tez.dag.api.TezConfiguration; import org.junit.After; import org.junit.Assert; import org.junit.Before; import org.junit.Test; public class TestTezMxBeanResourceCalculator { private ResourceCalculatorProcessTree resourceCalculator; @Before public void setup() throws Exception { Configuration conf = new TezConfiguration(); conf.set(TezConfiguration.TEZ_TASK_RESOURCE_CALCULATOR_PROCESS_TREE_CLASS, TezMxBeanResourceCalculator.class.getName()); Class<? extends ResourceCalculatorProcessTree> clazz = conf.getClass( TezConfiguration.TEZ_TASK_RESOURCE_CALCULATOR_PROCESS_TREE_CLASS, null, ResourceCalculatorProcessTree.class); resourceCalculator = ResourceCalculatorProcessTree.getResourceCalculatorProcessTree("", clazz, conf); } @After public void teardown() { resourceCalculator = null; } @Test(timeout = 5000) public void testResourceCalculator() { Assert.assertTrue(resourceCalculator instanceof TezMxBeanResourceCalculator); Assert.assertTrue(resourceCalculator.getCumulativeCpuTime() > 0); Assert.assertTrue(resourceCalculator.getCumulativeVmem() > 0); Assert.assertTrue(resourceCalculator.getCumulativeRssmem() > 0); Assert.assertTrue(resourceCalculator.getProcessTreeDump().equals("")); Assert.assertTrue(resourceCalculator.checkPidPgrpidForMatch()); } }