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Packages that use Closeable | |
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org.apache.hadoop.examples | Hadoop example code. |
org.apache.hadoop.mapred | A system for scalable, fault-tolerant, distributed computation over large data collections. |
org.apache.hadoop.mapred.lib | Library of generally useful mappers, reducers, and partitioners. |
org.apache.hadoop.tools | |
org.apache.hadoop.util | Common utilities. |
Uses of Closeable in org.apache.hadoop.examples |
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Classes in org.apache.hadoop.examples that implement Closeable | |
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class |
NNBench
This program uses map/reduce to just run a distributed job where there is no interaction between the tasks and each task creates 1M/NTasks files of 8 bytes each, closes them. |
static class |
NNBench.Map
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static class |
PiBenchmark.PiMapper
Mappper class for Pi estimation. |
static class |
PiBenchmark.PiReducer
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class |
RandomWriter
This program uses map/reduce to just run a distributed job where there is no interaction between the tasks and each task write a large unsorted random binary sequence file of BytesWritable. |
static class |
RandomWriter.Map
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static class |
WordCount.MapClass
Counts the words in each line. |
static class |
WordCount.Reduce
A reducer class that just emits the sum of the input values. |
Uses of Closeable in org.apache.hadoop.mapred |
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Subinterfaces of Closeable in org.apache.hadoop.mapred | |
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interface |
Mapper
Maps input key/value pairs to a set of intermediate key/value pairs. |
interface |
Reducer
Reduces a set of intermediate values which share a key to a smaller set of values. |
Classes in org.apache.hadoop.mapred that implement Closeable | |
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class |
MapReduceBase
Base class for Mapper and Reducer implementations. |
Uses of Closeable in org.apache.hadoop.mapred.lib |
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Classes in org.apache.hadoop.mapred.lib that implement Closeable | |
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class |
IdentityMapper
Implements the identity function, mapping inputs directly to outputs. |
class |
IdentityReducer
Performs no reduction, writing all input values directly to the output. |
class |
InverseMapper
A Mapper that swaps keys and values. |
class |
LongSumReducer
A Reducer that sums long values. |
class |
RegexMapper
A Mapper that extracts text matching a regular expression. |
class |
TokenCountMapper
A Mapper that maps text values into |
Uses of Closeable in org.apache.hadoop.tools |
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Classes in org.apache.hadoop.tools that implement Closeable | |
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static class |
Logalyzer.LogRegexMapper
A Mapper that extracts text matching a regular expression. |
Uses of Closeable in org.apache.hadoop.util |
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Classes in org.apache.hadoop.util that implement Closeable | |
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static class |
CopyFiles.CopyFilesMapper
Base-class for all mappers for distcp |
static class |
CopyFiles.CopyFilesReducer
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static class |
CopyFiles.DFSCopyFilesMapper
DFSCopyFilesMapper: The mapper for copying files from the DFS. |
static class |
CopyFiles.HTTPCopyFilesMapper
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