diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeStatusMXBean.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeStatusMXBean.java new file mode 100644 index 00000000000..c03dc209f9d --- /dev/null +++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeStatusMXBean.java @@ -0,0 +1,93 @@ +/** + * 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 org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.hdfs.MiniDFSCluster; +import org.apache.hadoop.hdfs.server.datanode.TestDataNodeMXBean; +import org.junit.Assert; +import org.junit.Test; + +import javax.management.MBeanServer; +import javax.management.ObjectName; +import java.lang.management.ManagementFactory; + +/** + * Class for testing {@link NameNodeStatusMXBean} implementation. + */ +public class TestNameNodeStatusMXBean { + + public static final Log LOG = LogFactory.getLog( + TestNameNodeStatusMXBean.class); + + @Test(timeout = 120000L) + public void testDataNodeMXBean() 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); + } finally { + if (cluster != null) { + cluster.shutdown(); + } + } + } +}