| /** |
| * 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.hdfs.server.namenode; |
| |
| import com.google.common.base.Supplier; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager; |
| import org.apache.hadoop.hdfs.server.datanode.DataNode; |
| import org.apache.hadoop.hdfs.DFSConfigKeys; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.test.GenericTestUtils; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import javax.management.MBeanServer; |
| import javax.management.ObjectName; |
| import java.lang.management.ManagementFactory; |
| import java.util.List; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Class for testing {@link NameNodeStatusMXBean} implementation. |
| */ |
| public class TestNameNodeStatusMXBean { |
| |
| public static final Log LOG = LogFactory.getLog( |
| TestNameNodeStatusMXBean.class); |
| |
| @Test(timeout = 120000L) |
| public void testNameNodeStatusMXBean() throws Exception { |
| Configuration conf = new Configuration(); |
| MiniDFSCluster cluster = null; |
| |
| try { |
| cluster = new MiniDFSCluster.Builder(conf).build(); |
| cluster.waitActive(); |
| |
| NameNode nn = cluster.getNameNode(); |
| |
| MBeanServer mbs = ManagementFactory.getPlatformMBeanServer(); |
| ObjectName mxbeanName = new ObjectName( |
| "Hadoop:service=NameNode,name=NameNodeStatus"); |
| |
| // Get attribute "NNRole" |
| String nnRole = (String)mbs.getAttribute(mxbeanName, "NNRole"); |
| Assert.assertEquals(nn.getNNRole(), nnRole); |
| |
| // Get attribute "State" |
| String state = (String)mbs.getAttribute(mxbeanName, "State"); |
| Assert.assertEquals(nn.getState(), state); |
| |
| // Get attribute "HostAndPort" |
| String hostAndPort = (String)mbs.getAttribute(mxbeanName, "HostAndPort"); |
| Assert.assertEquals(nn.getHostAndPort(), hostAndPort); |
| |
| // Get attribute "SecurityEnabled" |
| boolean securityEnabled = (boolean)mbs.getAttribute(mxbeanName, |
| "SecurityEnabled"); |
| Assert.assertEquals(nn.isSecurityEnabled(), securityEnabled); |
| |
| // Get attribute "LastHATransitionTime" |
| long lastHATransitionTime = (long)mbs.getAttribute(mxbeanName, |
| "LastHATransitionTime"); |
| Assert.assertEquals(nn.getLastHATransitionTime(), lastHATransitionTime); |
| |
| // Get attribute "BytesWithFutureGenerationStamps" |
| long bytesWithFutureGenerationStamps = (long)mbs.getAttribute( |
| mxbeanName, "BytesWithFutureGenerationStamps"); |
| Assert.assertEquals(nn.getBytesWithFutureGenerationStamps(), |
| bytesWithFutureGenerationStamps); |
| |
| // Get attribute "SlowPeersReport" |
| String slowPeersReport = (String)mbs.getAttribute(mxbeanName, |
| "SlowPeersReport"); |
| Assert.assertEquals(nn.getSlowPeersReport(), slowPeersReport); |
| |
| // Get attribute "SlowDisksReport" |
| String slowDisksReport = (String)mbs.getAttribute(mxbeanName, |
| "SlowDisksReport"); |
| Assert.assertEquals(nn.getSlowDisksReport(), slowDisksReport); |
| } finally { |
| if (cluster != null) { |
| cluster.shutdown(); |
| } |
| } |
| } |
| |
| @Test (timeout = 120000L) |
| public void testNameNodeMXBeanSlowDisksEnabled() throws Exception { |
| Configuration conf = new Configuration(); |
| conf.setInt( |
| DFSConfigKeys.DFS_DATANODE_FILEIO_PROFILING_SAMPLING_PERCENTAGE_KEY, |
| 100); |
| conf.setTimeDuration( |
| DFSConfigKeys.DFS_DATANODE_OUTLIERS_REPORT_INTERVAL_KEY, |
| 1000, TimeUnit.MILLISECONDS); |
| MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build(); |
| |
| try { |
| List<DataNode> datanodes = cluster.getDataNodes(); |
| Assert.assertEquals(datanodes.size(), 1); |
| DataNode datanode = datanodes.get(0); |
| String slowDiskPath = "test/data1/slowVolume"; |
| datanode.getDiskMetrics().addSlowDiskForTesting(slowDiskPath, null); |
| |
| NameNode nn = cluster.getNameNode(); |
| final DatanodeManager datanodeManager = nn.getNamesystem() |
| .getBlockManager() |
| .getDatanodeManager(); |
| |
| MBeanServer mbs = ManagementFactory.getPlatformMBeanServer(); |
| ObjectName mxbeanName = new ObjectName( |
| "Hadoop:service=NameNode,name=NameNodeStatus"); |
| |
| GenericTestUtils.waitFor(new Supplier<Boolean>() { |
| @Override |
| public Boolean get() { |
| return (datanodeManager.getSlowDisksReport() != null); |
| } |
| }, 1000, 100000); |
| |
| String slowDisksReport = (String)mbs.getAttribute( |
| mxbeanName, "SlowDisksReport"); |
| Assert.assertEquals(datanodeManager.getSlowDisksReport(), |
| slowDisksReport); |
| Assert.assertTrue(slowDisksReport.contains(slowDiskPath)); |
| } finally { |
| if (cluster != null) { |
| cluster.shutdown(); |
| } |
| } |
| } |
| } |