hadoop RMHAServiceTarget 源码
haddop RMHAServiceTarget 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/client/RMHAServiceTarget.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
*
* 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.yarn.client;
import org.apache.hadoop.ha.BadFencingConfigurationException;
import org.apache.hadoop.ha.HAServiceTarget;
import org.apache.hadoop.ha.NodeFencer;
import org.apache.hadoop.yarn.conf.HAUtil;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import java.io.IOException;
import java.net.InetSocketAddress;
public class RMHAServiceTarget extends HAServiceTarget {
private final boolean autoFailoverEnabled;
private final InetSocketAddress haAdminServiceAddress;
public RMHAServiceTarget(YarnConfiguration conf)
throws IOException {
autoFailoverEnabled = HAUtil.isAutomaticFailoverEnabled(conf);
haAdminServiceAddress = conf.getSocketAddr(
YarnConfiguration.RM_ADMIN_ADDRESS,
YarnConfiguration.DEFAULT_RM_ADMIN_ADDRESS,
YarnConfiguration.DEFAULT_RM_ADMIN_PORT);
}
@Override
public InetSocketAddress getAddress() {
return haAdminServiceAddress;
}
@Override
public InetSocketAddress getZKFCAddress() {
// TODO (YARN-1177): ZKFC implementation
throw new UnsupportedOperationException("RMHAServiceTarget doesn't have " +
"a corresponding ZKFC address");
}
@Override
public NodeFencer getFencer() {
return null;
}
@Override
public void checkFencingConfigured() throws BadFencingConfigurationException {
throw new BadFencingConfigurationException("Fencer not configured");
}
@Override
public boolean isAutoFailoverEnabled() {
return autoFailoverEnabled;
}
}
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