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| Packages that use org.apache.hadoop.mapreduce | |
|---|---|
| org.apache.hadoop.examples | Hadoop example code. |
| org.apache.hadoop.filecache | |
| 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.fieldsel | |
| org.apache.hadoop.mapreduce.lib.input | |
| org.apache.hadoop.mapreduce.lib.jobcontrol | |
| org.apache.hadoop.mapreduce.lib.map | |
| org.apache.hadoop.mapreduce.lib.output | |
| org.apache.hadoop.mapreduce.lib.partition | |
| org.apache.hadoop.mapreduce.lib.reduce | |
| org.apache.hadoop.mapreduce.security.token | |
| org.apache.hadoop.mapreduce.server.jobtracker | |
| org.apache.hadoop.mapreduce.server.tasktracker.userlogs | |
| org.apache.hadoop.mapreduce.split | |
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.examples | |
|---|---|
| Mapper
Maps input key/value pairs to a set of intermediate key/value pairs. |
|
| Mapper.Context
|
|
| Partitioner
Partitions the key space. |
|
| Reducer
Reduces a set of intermediate values which share a key to a smaller set of values. |
|
| Reducer.Context
|
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.filecache | |
|---|---|
| JobID
JobID represents the immutable and unique identifier for the job. |
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.mapred | |
|---|---|
| ClusterMetrics
Status information on the current state of the Map-Reduce cluster. |
|
| Counter
A named counter that tracks the progress of a map/reduce job. |
|
| ID
A general identifier, which internally stores the id as an integer. |
|
InputSplit
InputSplit represents the data to be processed by an
individual Mapper. |
|
| JobACL
Job related ACLs |
|
| JobContext
A read-only view of the job that is provided to the tasks while they are running. |
|
| JobID
JobID represents the immutable and unique identifier for the job. |
|
| JobStatus.State
Current state of the job |
|
OutputCommitter
OutputCommitter describes the commit of task output for a
Map-Reduce job. |
|
OutputFormat
OutputFormat describes the output-specification for a
Map-Reduce job. |
|
RecordWriter
RecordWriter writes the output <key, value> pairs
to an output file. |
|
| Reducer
Reduces a set of intermediate values which share a key to a smaller set of values. |
|
| Reducer.Context
|
|
| StatusReporter
|
|
| TaskAttemptContext
The context for task attempts. |
|
| TaskAttemptID
TaskAttemptID represents the immutable and unique identifier for a task attempt. |
|
| TaskID
TaskID represents the immutable and unique identifier for a Map or Reduce Task. |
|
| TaskType
Enum for map, reduce, job-setup, job-cleanup, task-cleanup task types. |
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.mapreduce | |
|---|---|
| Counter
A named counter that tracks the progress of a map/reduce job. |
|
| CounterGroup
A group of Counters that logically belong together. |
|
| Counters
|
|
| ID
A general identifier, which internally stores the id as an integer. |
|
InputFormat
InputFormat describes the input-specification for a
Map-Reduce job. |
|
InputSplit
InputSplit represents the data to be processed by an
individual Mapper. |
|
| Job
The job submitter's view of the Job. |
|
| Job.JobState
|
|
| JobACL
Job related ACLs |
|
| JobContext
A read-only view of the job that is provided to the tasks while they are running. |
|
| JobID
JobID represents the immutable and unique identifier for the job. |
|
| JobStatus.State
Current state of the job |
|
| MapContext
The context that is given to the Mapper. |
|
| Mapper
Maps input key/value pairs to a set of intermediate key/value pairs. |
|
| Mapper.Context
|
|
OutputCommitter
OutputCommitter describes the commit of task output for a
Map-Reduce job. |
|
OutputFormat
OutputFormat describes the output-specification for a
Map-Reduce job. |
|
| Partitioner
Partitions the key space. |
|
| RecordReader
The record reader breaks the data into key/value pairs for input to the Mapper. |
|
RecordWriter
RecordWriter writes the output <key, value> pairs
to an output file. |
|
| ReduceContext
The context passed to the Reducer. |
|
| Reducer
Reduces a set of intermediate values which share a key to a smaller set of values. |
|
| Reducer.Context
|
|
| StatusReporter
|
|
| TaskAttemptContext
The context for task attempts. |
|
| TaskAttemptID
TaskAttemptID represents the immutable and unique identifier for a task attempt. |
|
| TaskID
TaskID represents the immutable and unique identifier for a Map or Reduce Task. |
|
| TaskInputOutputContext
A context object that allows input and output from the task. |
|
| TaskType
Enum for map, reduce, job-setup, job-cleanup, task-cleanup task types. |
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.mapreduce.lib.db | |
|---|---|
InputFormat
InputFormat describes the input-specification for a
Map-Reduce job. |
|
InputSplit
InputSplit represents the data to be processed by an
individual Mapper. |
|
| Job
The job submitter's view of the Job. |
|
| JobContext
A read-only view of the job that is provided to the tasks while they are running. |
|
OutputCommitter
OutputCommitter describes the commit of task output for a
Map-Reduce job. |
|
OutputFormat
OutputFormat describes the output-specification for a
Map-Reduce job. |
|
| RecordReader
The record reader breaks the data into key/value pairs for input to the Mapper. |
|
RecordWriter
RecordWriter writes the output <key, value> pairs
to an output file. |
|
| TaskAttemptContext
The context for task attempts. |
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.mapreduce.lib.fieldsel | |
|---|---|
| Mapper
Maps input key/value pairs to a set of intermediate key/value pairs. |
|
| Mapper.Context
|
|
| Reducer
Reduces a set of intermediate values which share a key to a smaller set of values. |
|
| Reducer.Context
|
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.mapreduce.lib.input | |
|---|---|
InputFormat
InputFormat describes the input-specification for a
Map-Reduce job. |
|
InputSplit
InputSplit represents the data to be processed by an
individual Mapper. |
|
| Job
The job submitter's view of the Job. |
|
| JobContext
A read-only view of the job that is provided to the tasks while they are running. |
|
| Mapper
Maps input key/value pairs to a set of intermediate key/value pairs. |
|
| Mapper.Context
|
|
| RecordReader
The record reader breaks the data into key/value pairs for input to the Mapper. |
|
| TaskAttemptContext
The context for task attempts. |
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.mapreduce.lib.jobcontrol | |
|---|---|
| Job
The job submitter's view of the Job. |
|
| JobID
JobID represents the immutable and unique identifier for the job. |
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.mapreduce.lib.map | |
|---|---|
| Job
The job submitter's view of the Job. |
|
| JobContext
A read-only view of the job that is provided to the tasks while they are running. |
|
| Mapper
Maps input key/value pairs to a set of intermediate key/value pairs. |
|
| Mapper.Context
|
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.mapreduce.lib.output | |
|---|---|
| Job
The job submitter's view of the Job. |
|
| JobContext
A read-only view of the job that is provided to the tasks while they are running. |
|
| JobStatus.State
Current state of the job |
|
OutputCommitter
OutputCommitter describes the commit of task output for a
Map-Reduce job. |
|
OutputFormat
OutputFormat describes the output-specification for a
Map-Reduce job. |
|
RecordWriter
RecordWriter writes the output <key, value> pairs
to an output file. |
|
| TaskAttemptContext
The context for task attempts. |
|
| TaskInputOutputContext
A context object that allows input and output from the task. |
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.mapreduce.lib.partition | |
|---|---|
InputFormat
InputFormat describes the input-specification for a
Map-Reduce job. |
|
| Job
The job submitter's view of the Job. |
|
| JobContext
A read-only view of the job that is provided to the tasks while they are running. |
|
| Partitioner
Partitions the key space. |
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.mapreduce.lib.reduce | |
|---|---|
| Reducer
Reduces a set of intermediate values which share a key to a smaller set of values. |
|
| Reducer.Context
|
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.mapreduce.security.token | |
|---|---|
| JobID
JobID represents the immutable and unique identifier for the job. |
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.mapreduce.server.jobtracker | |
|---|---|
| TaskType
Enum for map, reduce, job-setup, job-cleanup, task-cleanup task types. |
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.mapreduce.server.tasktracker.userlogs | |
|---|---|
| JobID
JobID represents the immutable and unique identifier for the job. |
|
| Classes in org.apache.hadoop.mapreduce used by org.apache.hadoop.mapreduce.split | |
|---|---|
InputSplit
InputSplit represents the data to be processed by an
individual Mapper. |
|
| JobID
JobID represents the immutable and unique identifier for the job. |
|
|
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