hadoop RMInfo 源码
haddop RMInfo 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/RMInfo.java
/**
* 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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* 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.yarn.server.resourcemanager;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.metrics2.util.MBeans;
import org.apache.hadoop.net.NetUtils;
import org.apache.hadoop.security.UserGroupInformation;
import javax.management.NotCompliantMBeanException;
import javax.management.ObjectName;
import javax.management.StandardMBean;
/**
* JMX bean for RM info.
*/
public class RMInfo implements RMInfoMXBean {
private static final Log LOG = LogFactory.getLog(RMNMInfo.class);
private ResourceManager resourceManager;
private ObjectName rmStatusBeanName;
/**
* Constructor for RMInfo registers the bean with JMX.
*
* @param resourceManager resource manager's context object
*/
RMInfo(ResourceManager resourceManager) {
this.resourceManager = resourceManager;
}
public void register() {
StandardMBean bean;
try {
bean = new StandardMBean(this, RMInfoMXBean.class);
rmStatusBeanName = MBeans.register("ResourceManager", "RMInfo", bean);
} catch (NotCompliantMBeanException e) {
LOG.warn("Error registering RMInfo MBean", e);
}
LOG.info("Registered RMInfo MBean");
}
public void unregister() {
if (rmStatusBeanName != null) {
MBeans.unregister(rmStatusBeanName);
}
}
@Override public String getState() {
return this.resourceManager.getRMContext().getHAServiceState().toString();
}
@Override public String getHostAndPort() {
return NetUtils.getHostPortString(ResourceManager.getBindAddress(
this.resourceManager.getRMContext().getYarnConfiguration()));
}
@Override public boolean isSecurityEnabled() {
return UserGroupInformation.isSecurityEnabled();
}
}
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