类 org.apache.hadoop.mapred.Counters.Counter
的使用

使用Counters.Counter的程序包

程序包	说明
org.apache.hadoop.mapred	A software framework for easily writing applications which process vast amounts of data (multi-terabyte data-sets) parallelly on large clusters (thousands of nodes) built of commodity hardware in a reliable, fault-tolerant manner.

org.apache.hadoop.mapred中Counters.Counter的使用

声明为Counters.Counter的org.apache.hadoop.mapred中的字段

限定符和类型	字段和说明
protected Counters.Counter	Task.CombinerRunner.inputCounter
protected Counters.Counter	Task.spilledRecordsCounter

返回Counters.Counter的org.apache.hadoop.mapred中的方法

限定符和类型	方法和说明
Counters.Counter	Counters.findCounter(Enum key) Find the counter for the given enum.
Counters.Counter	Counters.findCounter(String group, int id, String name) 已过时。
Counters.Counter	Counters.findCounter(String group, String name) Find a counter given the group and the name.
Counters.Counter	Task.TaskReporter.getCounter(Enum<?> name)
Counters.Counter	Reporter.getCounter(Enum<?> name) Get the Counters.Counter of the given group with the given name.
Counters.Counter	Counters.Group.getCounter(int id, String name) 已过时。 use Counters.Group.getCounter(String) instead
Counters.Counter	Task.TaskReporter.getCounter(String group, String name)
Counters.Counter	Reporter.getCounter(String group, String name) Get the Counters.Counter of the given group with the given name.
Counters.Counter	Counters.Group.getCounterForName(String name) Get the counter for the given name and create it if it doesn't exist.

返回变量类型为Counters.Counter的类型的org.apache.hadoop.mapred中的方法

限定符和类型	方法和说明
Iterator<Counters.Counter>	Counters.Group.iterator()

参数类型为Counters.Counter的org.apache.hadoop.mapred中的构造器

构造器和说明
Task.CombineOutputCollector(Counters.Counter outCounter, Progressable progressable, Configuration conf)
Task.CombineValuesIterator(RawKeyValueIterator in, RawComparator<KEY> comparator, Class<KEY> keyClass, Class<VALUE> valClass, Configuration conf, Reporter reporter, Counters.Counter combineInputCounter)
Task.OldCombinerRunner(Class<? extends Reducer<K,V,K,V>> cls, JobConf conf, Counters.Counter inputCounter, Task.TaskReporter reporter)