hadoop Counters 源码
haddop Counters 代码
文件路径：/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/api/records/Counters.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.mapreduce.v2.api.records;
import java.util.Map;
public interface Counters {
public abstract Map<String, CounterGroup> getAllCounterGroups();
public abstract CounterGroup getCounterGroup(String key);
public abstract Counter getCounter(Enum<?> key);
public abstract void addAllCounterGroups(Map<String, CounterGroup> counterGroups);
public abstract void setCounterGroup(String key, CounterGroup value);
public abstract void removeCounterGroup(String key);
public abstract void clearCounterGroups();
public abstract void incrCounter(Enum<?> key, long amount);
}
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