Uses of Class
org.apache.hadoop.mapreduce.TaskAttemptContext

Packages that use TaskAttemptContext

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
org.apache.hadoop.mapreduce.lib.db
org.apache.hadoop.mapreduce.lib.input
org.apache.hadoop.mapreduce.lib.output

Uses of TaskAttemptContext in org.apache.hadoop.mapred

Subclasses of TaskAttemptContext in org.apache.hadoop.mapred

class

TaskAttemptContext

Methods in org.apache.hadoop.mapred with parameters of type TaskAttemptContext

void	OutputCommitter.abortTask(TaskAttemptContext taskContext) This method implements the new interface by calling the old method.
void	OutputCommitter.commitTask(TaskAttemptContext taskContext) This method implements the new interface by calling the old method.
boolean	OutputCommitter.needsTaskCommit(TaskAttemptContext taskContext) This method implements the new interface by calling the old method.
void	OutputCommitter.setupTask(TaskAttemptContext taskContext) This method implements the new interface by calling the old method.

Uses of TaskAttemptContext in org.apache.hadoop.mapreduce

Subclasses of TaskAttemptContext in org.apache.hadoop.mapreduce

class	MapContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT> The context that is given to the Mapper.
class	Mapper.Context
class	ReduceContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT> The context passed to the Reducer.
class	Reducer.Context
class	TaskInputOutputContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT> A context object that allows input and output from the task.

Methods in org.apache.hadoop.mapreduce with parameters of type TaskAttemptContext

abstract void	OutputCommitter.abortTask(TaskAttemptContext taskContext) Discard the task output
abstract void	RecordWriter.close(TaskAttemptContext context) Close this RecordWriter to future operations.
abstract void	OutputCommitter.commitTask(TaskAttemptContext taskContext) To promote the task's temporary output to final output location The task's output is moved to the job's output directory.
abstract RecordReader<K,V>	InputFormat.createRecordReader(InputSplit split, TaskAttemptContext context) Create a record reader for a given split.
abstract OutputCommitter	OutputFormat.getOutputCommitter(TaskAttemptContext context) Get the output committer for this output format.
abstract RecordWriter<K,V>	OutputFormat.getRecordWriter(TaskAttemptContext context) Get the RecordWriter for the given task.
abstract void	RecordReader.initialize(InputSplit split, TaskAttemptContext context) Called once at initialization.
abstract boolean	OutputCommitter.needsTaskCommit(TaskAttemptContext taskContext) Check whether task needs a commit
abstract void	OutputCommitter.setupTask(TaskAttemptContext taskContext) Sets up output for the task.

Uses of TaskAttemptContext in org.apache.hadoop.mapreduce.lib.db

Methods in org.apache.hadoop.mapreduce.lib.db with parameters of type TaskAttemptContext

void	DBOutputFormat.DBRecordWriter.close(TaskAttemptContext context) Close this RecordWriter to future operations.
RecordReader<LongWritable,T>	DBInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context) Create a record reader for a given split.
OutputCommitter	DBOutputFormat.getOutputCommitter(TaskAttemptContext context)
RecordWriter<K,V>	DBOutputFormat.getRecordWriter(TaskAttemptContext context) Get the RecordWriter for the given task.
void	DBRecordReader.initialize(InputSplit split, TaskAttemptContext context)

Uses of TaskAttemptContext in org.apache.hadoop.mapreduce.lib.input

Fields in org.apache.hadoop.mapreduce.lib.input declared as TaskAttemptContext

protected TaskAttemptContext

CombineFileRecordReader.context

Methods in org.apache.hadoop.mapreduce.lib.input with parameters of type TaskAttemptContext

RecordReader<K,V>	DelegatingInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
RecordReader<BytesWritable,BytesWritable>	SequenceFileAsBinaryInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
abstract RecordReader<K,V>	CombineFileInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context) This is not implemented yet.
RecordReader<K,V>	SequenceFileInputFilter.createRecordReader(InputSplit split, TaskAttemptContext context) Create a record reader for the given split
RecordReader<LongWritable,Text>	NLineInputFormat.createRecordReader(InputSplit genericSplit, TaskAttemptContext context)
RecordReader<K,V>	SequenceFileInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
RecordReader<LongWritable,Text>	TextInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
RecordReader<Text,Text>	SequenceFileAsTextInputFormat.createRecordReader(InputSplit split, TaskAttemptContext context)
RecordReader<Text,Text>	KeyValueTextInputFormat.createRecordReader(InputSplit genericSplit, TaskAttemptContext context)
void	SequenceFileRecordReader.initialize(InputSplit split, TaskAttemptContext context)
void	SequenceFileAsBinaryInputFormat.SequenceFileAsBinaryRecordReader.initialize(InputSplit split, TaskAttemptContext context)
void	SequenceFileAsTextRecordReader.initialize(InputSplit split, TaskAttemptContext context)
void	DelegatingRecordReader.initialize(InputSplit split, TaskAttemptContext context)
void	LineRecordReader.initialize(InputSplit genericSplit, TaskAttemptContext context)
void	CombineFileRecordReader.initialize(InputSplit split, TaskAttemptContext context)
void	KeyValueLineRecordReader.initialize(InputSplit genericSplit, TaskAttemptContext context)

Constructors in org.apache.hadoop.mapreduce.lib.input with parameters of type TaskAttemptContext

CombineFileRecordReader(CombineFileSplit split, TaskAttemptContext context, Class<? extends RecordReader<K,V>> rrClass)
A generic RecordReader that can hand out different recordReaders for each chunk in the CombineFileSplit.

DelegatingRecordReader(InputSplit split, TaskAttemptContext context)
Constructs the DelegatingRecordReader.

Uses of TaskAttemptContext in org.apache.hadoop.mapreduce.lib.output

Methods in org.apache.hadoop.mapreduce.lib.output with parameters of type TaskAttemptContext

void	FileOutputCommitter.abortTask(TaskAttemptContext context) Delete the work directory
void	FilterOutputFormat.FilterRecordWriter.close(TaskAttemptContext context)
void	TextOutputFormat.LineRecordWriter.close(TaskAttemptContext context)
void	FileOutputCommitter.commitTask(TaskAttemptContext context) Move the files from the work directory to the job output directory
Path	FileOutputFormat.getDefaultWorkFile(TaskAttemptContext context, String extension) Get the default path and filename for the output format.
OutputCommitter	FileOutputFormat.getOutputCommitter(TaskAttemptContext context)
OutputCommitter	FilterOutputFormat.getOutputCommitter(TaskAttemptContext context)
OutputCommitter	LazyOutputFormat.getOutputCommitter(TaskAttemptContext context)
OutputCommitter	NullOutputFormat.getOutputCommitter(TaskAttemptContext context)
abstract RecordWriter<K,V>	FileOutputFormat.getRecordWriter(TaskAttemptContext job)
RecordWriter<BytesWritable,BytesWritable>	SequenceFileAsBinaryOutputFormat.getRecordWriter(TaskAttemptContext context)
RecordWriter<K,V>	FilterOutputFormat.getRecordWriter(TaskAttemptContext context)
RecordWriter<K,V>	LazyOutputFormat.getRecordWriter(TaskAttemptContext context)
RecordWriter<K,V>	SequenceFileOutputFormat.getRecordWriter(TaskAttemptContext context)
RecordWriter<K,V>	TextOutputFormat.getRecordWriter(TaskAttemptContext job)
RecordWriter<K,V>	NullOutputFormat.getRecordWriter(TaskAttemptContext context)
protected SequenceFile.Writer	SequenceFileAsBinaryOutputFormat.getSequenceWriter(TaskAttemptContext context, Class<?> keyClass, Class<?> valueClass)
static String	FileOutputFormat.getUniqueFile(TaskAttemptContext context, String name, String extension) Generate a unique filename, based on the task id, name, and extension
boolean	FileOutputCommitter.needsTaskCommit(TaskAttemptContext context) Did this task write any files in the work directory?
void	FileOutputCommitter.setupTask(TaskAttemptContext context) No task setup required.

Constructors in org.apache.hadoop.mapreduce.lib.output with parameters of type TaskAttemptContext

FileOutputCommitter(Path outputPath, TaskAttemptContext context)
Create a file output committer