Package | Description |
---|---|
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.mapreduce.server.tasktracker |
Modifier and Type | Class and Description |
---|---|
class |
MapTask
A Map task.
|
class |
ReduceTask
A Reduce task.
|
Modifier and Type | Method and Description |
---|---|
Task |
TaskInProgress.addRunningTask(TaskAttemptID taskid,
java.lang.String taskTracker) |
Task |
TaskInProgress.addRunningTask(TaskAttemptID taskid,
java.lang.String taskTracker,
boolean taskCleanup)
Adds a previously running task to this tip.
|
Task |
JvmTask.getTask() |
Task |
TaskInProgress.getTaskToRun(java.lang.String taskTracker)
Return a Task that can be sent to a TaskTracker for execution.
|
Task |
JobInProgress.obtainJobCleanupTask(TaskTrackerStatus tts,
int clusterSize,
int numUniqueHosts,
boolean isMapSlot)
Return a CleanupTask, if appropriate, to run on the given tasktracker
|
Task |
JobInProgress.obtainJobSetupTask(TaskTrackerStatus tts,
int clusterSize,
int numUniqueHosts,
boolean isMapSlot)
Return a SetupTask, if appropriate, to run on the given tasktracker
|
Task |
JobInProgress.obtainNewLocalMapTask(TaskTrackerStatus tts,
int clusterSize,
int numUniqueHosts) |
Task |
JobInProgress.obtainNewMapTask(TaskTrackerStatus tts,
int clusterSize,
int numUniqueHosts)
Return a MapTask, if appropriate, to run on the given tasktracker
|
Task |
JobInProgress.obtainNewMapTask(TaskTrackerStatus tts,
int clusterSize,
int numUniqueHosts,
int maxCacheLevel)
Return a MapTask, if appropriate, to run on the given tasktracker
|
Task |
JobInProgress.obtainNewNonLocalMapTask(TaskTrackerStatus tts,
int clusterSize,
int numUniqueHosts) |
Task |
JobInProgress.obtainNewReduceTask(TaskTrackerStatus tts,
int clusterSize,
int numUniqueHosts)
Return a ReduceTask, if appropriate, to run on the given tasktracker.
|
Task |
JobInProgress.obtainTaskCleanupTask(TaskTrackerStatus tts,
boolean isMapSlot) |
Modifier and Type | Method and Description |
---|---|
abstract void |
TaskController.truncateLogsAsUser(java.lang.String user,
java.util.List<Task> allAttempts)
Run the passed command as the user
|
void |
DefaultTaskController.truncateLogsAsUser(java.lang.String user,
java.util.List<Task> allAttempts) |
Constructor and Description |
---|
JvmTask(Task t,
boolean shouldDie) |
Modifier and Type | Method and Description |
---|---|
java.util.List<Task> |
JVMInfo.getAllAttempts() |
Constructor and Description |
---|
JVMInfo(java.io.File logLocation,
java.util.List<Task> allAttempts) |
Copyright © 2009 The Apache Software Foundation