hadoop NoRouterRpcFairnessPolicyController 源码
haddop NoRouterRpcFairnessPolicyController 代码
文件路径：/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/fairness/NoRouterRpcFairnessPolicyController.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.hdfs.server.federation.fairness;
import org.apache.hadoop.conf.Configuration;
/**
* A pass through fairness policy that implements
* {@link RouterRpcFairnessPolicyController} and allows any number
* of handlers to connect to any specific downstream name service.
*/
public class NoRouterRpcFairnessPolicyController implements
RouterRpcFairnessPolicyController {
public NoRouterRpcFairnessPolicyController(Configuration conf) {
// Dummy constructor.
}
@Override
public boolean acquirePermit(String nsId) {
return true;
}
@Override
public void releasePermit(String nsId) {
// Dummy, pass through.
}
@Override
public void shutdown() {
// Nothing for now.
}
@Override
public String getAvailableHandlerOnPerNs(){
return "N/A";
}
}
相关信息
相关文章
hadoop AbstractRouterRpcFairnessPolicyController 源码
hadoop RefreshFairnessPolicyControllerHandler 源码
hadoop RouterRpcFairnessConstants 源码
hadoop RouterRpcFairnessPolicyController 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦