hadoop HAServiceProtocolHelper 源码
haddop HAServiceProtocolHelper 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ha/HAServiceProtocolHelper.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.ha;
import java.io.IOException;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.ha.HAServiceProtocol.StateChangeRequestInfo;
import org.apache.hadoop.ipc.RemoteException;
/**
* Helper for making {@link HAServiceProtocol} RPC calls. This helper
* unwraps the {@link RemoteException} to specific exceptions.
*/
@InterfaceAudience.Public
@InterfaceStability.Evolving
public class HAServiceProtocolHelper {
public static void monitorHealth(HAServiceProtocol svc,
StateChangeRequestInfo reqInfo)
throws IOException {
try {
svc.monitorHealth();
} catch (RemoteException e) {
throw e.unwrapRemoteException(HealthCheckFailedException.class);
}
}
public static void transitionToActive(HAServiceProtocol svc,
StateChangeRequestInfo reqInfo)
throws IOException {
try {
svc.transitionToActive(reqInfo);
} catch (RemoteException e) {
throw e.unwrapRemoteException(ServiceFailedException.class);
}
}
public static void transitionToStandby(HAServiceProtocol svc,
StateChangeRequestInfo reqInfo)
throws IOException {
try {
svc.transitionToStandby(reqInfo);
} catch (RemoteException e) {
throw e.unwrapRemoteException(ServiceFailedException.class);
}
}
public static void transitionToObserver(HAServiceProtocol svc,
StateChangeRequestInfo reqInfo) throws IOException {
try {
svc.transitionToObserver(reqInfo);
} catch (RemoteException e) {
throw e.unwrapRemoteException(ServiceFailedException.class);
}
}
}
相关信息
相关文章
hadoop ActiveStandbyElector 源码
hadoop BadFencingConfigurationException 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
6、 golang
-
8、 openharmony