类 org.apache.hadoop.mapreduce.server.jobtracker.TaskTracker
的使用

使用TaskTracker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TaskTracker的使用

返回TaskTracker的org.apache.hadoop.mapred中的方法

限定符和类型	方法和说明
TaskTracker	JobTracker.getTaskTracker(String trackerID)

参数类型为TaskTracker的org.apache.hadoop.mapred中的方法

限定符和类型	方法和说明
void	JobInProgress.reserveTaskTracker(TaskTracker taskTracker, TaskType type, int numSlots)
void	JobInProgress.unreserveTaskTracker(TaskTracker taskTracker, TaskType type)