类 org.apache.hadoop.mapred.JobHistory.Task
的使用

使用JobHistory.Task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JobHistory.Task的使用

org.apache.hadoop.mapred中JobHistory.Task的子类

限定符和类型	类和说明
static class	JobHistory.MapAttempt Helper class for logging or reading back events related to start, finish or failure of a Map Attempt on a node.
static class	JobHistory.ReduceAttempt Helper class for logging or reading back events related to start, finish or failure of a Map Attempt on a node.
static class	JobHistory.TaskAttempt Base class for Map and Reduce TaskAttempts.

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

限定符和类型	方法和说明
Map<String,JobHistory.Task>	JobHistory.JobInfo.getAllTasks() Returns all map and reduce tasks .