Apache Hadoop Main 0.23.0 API

Common
org.apache.hadoop  
org.apache.hadoop.classification  
org.apache.hadoop.conf Configuration of system parameters.
org.apache.hadoop.filecache Deprecated. Use Job instead.
org.apache.hadoop.fs An abstract file system API.
org.apache.hadoop.fs.ftp  
org.apache.hadoop.fs.kfs A client for the Kosmos filesystem (KFS)
org.apache.hadoop.fs.permission  
org.apache.hadoop.fs.s3 A distributed, block-based implementation of FileSystem that uses Amazon S3 as a backing store.
org.apache.hadoop.fs.s3native A distributed implementation of FileSystem for reading and writing files on Amazon S3.
org.apache.hadoop.fs.viewfs  
org.apache.hadoop.http.lib This package provides user-selectable (via configuration) classes that add functionality to the web UI.
org.apache.hadoop.io Generic i/o code for use when reading and writing data to the network, to databases, and to files.
org.apache.hadoop.io.compress  
org.apache.hadoop.io.file.tfile  
org.apache.hadoop.io.serializer This package provides a mechanism for using different serialization frameworks in Hadoop.
org.apache.hadoop.io.serializer.avro This package provides Avro serialization in Hadoop.
org.apache.hadoop.jmx This package provides access to JMX primarily through the JMXJsonServlet class.
org.apache.hadoop.log  
org.apache.hadoop.log.metrics  
org.apache.hadoop.metrics This package defines an API for reporting performance metric information.
org.apache.hadoop.metrics.file Implementation of the metrics package that writes the metrics to a file.
org.apache.hadoop.metrics.ganglia Implementation of the metrics package that sends metric data to Ganglia.
org.apache.hadoop.metrics.spi The Service Provider Interface for the Metrics API.
org.apache.hadoop.metrics2 Metrics 2.0
org.apache.hadoop.metrics2.annotation Annotation interfaces for metrics instrumentation
org.apache.hadoop.metrics2.filter Builtin metrics filters (to be used in metrics config files)
org.apache.hadoop.metrics2.lib A collection of library classes for implementing metrics sources
org.apache.hadoop.metrics2.sink Builtin metrics sinks
org.apache.hadoop.metrics2.sink.ganglia  
org.apache.hadoop.metrics2.source  
org.apache.hadoop.metrics2.util General helpers for implementing source and sinks
org.apache.hadoop.net Network-related classes.
org.apache.hadoop.record (DEPRECATED) Hadoop record I/O contains classes and a record description language translator for simplifying serialization and deserialization of records in a language-neutral manner.
org.apache.hadoop.record.compiler (DEPRECATED) This package contains classes needed for code generation from the hadoop record compiler.
org.apache.hadoop.record.compiler.ant  
org.apache.hadoop.record.compiler.generated (DEPRECATED) This package contains code generated by JavaCC from the Hadoop record syntax file rcc.jj.
org.apache.hadoop.record.meta  
org.apache.hadoop.security  
org.apache.hadoop.security.authentication.client  
org.apache.hadoop.security.authentication.examples  
org.apache.hadoop.security.authentication.server  
org.apache.hadoop.security.authentication.util  
org.apache.hadoop.util Common utilities.
org.apache.hadoop.util.bloom  
org.apache.hadoop.util.hash  

 

MapReduce
org.apache.hadoop.mapred  
org.apache.hadoop.mapred.jobcontrol  
org.apache.hadoop.mapred.join  
org.apache.hadoop.mapred.lib  
org.apache.hadoop.mapred.lib.aggregate  
org.apache.hadoop.mapred.lib.db  
org.apache.hadoop.mapred.pipes  
org.apache.hadoop.mapreduce  
org.apache.hadoop.mapreduce.lib.aggregate  
org.apache.hadoop.mapreduce.lib.chain  
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.join  
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  
org.apache.hadoop.mapreduce.server.jobtracker  
org.apache.hadoop.mapreduce.server.tasktracker  
org.apache.hadoop.mapreduce.tools  
org.apache.hadoop.mapreduce.v2  

 

YARN
org.apache.hadoop.yarn  
org.apache.hadoop.yarn.api  
org.apache.hadoop.yarn.api.protocolrecords  
org.apache.hadoop.yarn.api.records  
org.apache.hadoop.yarn.applications.distributedshell  

 



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