类 org.apache.hadoop.mapred.TaskID
的使用

使用TaskID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TaskID的使用

返回TaskID的org.apache.hadoop.mapred中的方法

限定符和类型	方法和说明
static TaskID	TaskID.downgrade(TaskID old) Downgrade a new TaskID to an old one
static TaskID	TaskID.forName(String str)
TaskID	TaskReport.getTaskID() The id of the task.
TaskID	TaskAttemptID.getTaskID()
static TaskID	TaskID.read(DataInput in) 已过时。

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

限定符和类型	方法和说明
org.apache.hadoop.mapred.TaskInProgress	JobInProgress.getTaskInProgress(TaskID tipid) Return the TaskInProgress that matches the tipid.
org.apache.hadoop.mapred.TaskInProgress	JobTracker.getTip(TaskID tipid) Returns specified TaskInProgress, or null.
static void	JobHistory.Task.logFailed(TaskID taskId, String taskType, long time, String error) Log job failed event.
static void	JobHistory.Task.logFailed(TaskID taskId, String taskType, long time, String error, TaskAttemptID failedDueToAttempt)
static void	JobHistory.Task.logFinished(TaskID taskId, String taskType, long finishTime, Counters counters) Log finish time of task.
static void	JobHistory.Task.logStarted(TaskID taskId, String taskType, long startTime, String splitLocations) Log start time of task (TIP).
static void	JobHistory.Task.logUpdates(TaskID taskId, long finishTime) Update the finish time of task.

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

构造器和说明
TaskAttemptID(TaskID taskId, int id) Constructs a TaskAttemptID object from given TaskID.