Uses of Class org.apache.hadoop.mapred.Task (Hadoop 0.20.2-cdh3u4 API)
Date: 2012-05-07

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## Uses of Class
org.apache.hadoop.mapred.Task

Packages that use Task
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 |

Uses of Task in org.apache.hadoop.mapred

Methods in org.apache.hadoop.mapred that return Task
`Task` | `TaskInProgress.addRunningTask(TaskAttemptID taskid, String taskTracker)`
`Task` | `TaskInProgress.addRunningTask(TaskAttemptID taskid, String taskTracker, boolean taskCleanup)` Adds a previously running task to this tip.
`Task` | `JvmTask.getTask()`
`Task` | `TaskInProgress.getTaskToRun(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)`

Method parameters in org.apache.hadoop.mapred with type arguments of type Task
`void` | `DefaultTaskController.truncateLogsAsUser(String user, List<Task> allAttempts)`
`abstract void` | `TaskController.truncateLogsAsUser(String user, List<Task> allAttempts)` Run the passed command as the user

Constructors in org.apache.hadoop.mapred with parameters of type Task
`JvmTask(Task t, boolean shouldDie)`

Uses of Task in org.apache.hadoop.mapreduce.server.tasktracker

Methods in org.apache.hadoop.mapreduce.server.tasktracker that return types with arguments of type Task
`List<Task>` | `JVMInfo.getAllAttempts()`

Constructor parameters in org.apache.hadoop.mapreduce.server.tasktracker with type arguments of type Task
`JVMInfo(File logLocation, List<Task> allAttempts)`

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