Apache Hadoop Main 2.3.0 API

Common
org.apache.hadoop  
org.apache.hadoop.classification  
org.apache.hadoop.conf Configuration of system parameters.
org.apache.hadoop.contrib.bkjournal  
org.apache.hadoop.contrib.utils.join  
org.apache.hadoop.examples Hadoop example code.
org.apache.hadoop.examples.dancing This package is a distributed implementation of Knuth's dancing links algorithm that can run under Hadoop.
org.apache.hadoop.examples.pi This package consists of a map/reduce application, distbbp, which computes exact binary digits of the mathematical constant π.
org.apache.hadoop.examples.pi.math This package provides useful mathematical library classes for the distbbp program.
org.apache.hadoop.examples.terasort This package consists of 3 map/reduce applications for Hadoop to compete in the annual terabyte sort competition.
org.apache.hadoop.filecache  
org.apache.hadoop.fs An abstract file system API.
org.apache.hadoop.fs.ftp  
org.apache.hadoop.fs.http.client  
org.apache.hadoop.fs.http.server  
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.swift.auth  
org.apache.hadoop.fs.swift.auth.entities  
org.apache.hadoop.fs.swift.exceptions  
org.apache.hadoop.fs.swift.http  
org.apache.hadoop.fs.swift.snative  
org.apache.hadoop.fs.swift.util  
org.apache.hadoop.fs.viewfs  
org.apache.hadoop.ha  
org.apache.hadoop.ha.proto  
org.apache.hadoop.ha.protocolPB  
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.ipc.protobuf  
org.apache.hadoop.jmx This package provides access to JMX primarily through the JMXJsonServlet class.
org.apache.hadoop.lib.lang  
org.apache.hadoop.lib.server  
org.apache.hadoop.lib.service  
org.apache.hadoop.lib.service.hadoop  
org.apache.hadoop.lib.service.instrumentation  
org.apache.hadoop.lib.service.scheduler  
org.apache.hadoop.lib.service.security  
org.apache.hadoop.lib.servlet  
org.apache.hadoop.lib.util  
org.apache.hadoop.lib.wsrs  
org.apache.hadoop.log  
org.apache.hadoop.log.metrics  
org.apache.hadoop.maven.plugin.protoc  
org.apache.hadoop.maven.plugin.util  
org.apache.hadoop.maven.plugin.versioninfo  
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.minikdc  
org.apache.hadoop.mount  
org.apache.hadoop.net Network-related classes.
org.apache.hadoop.net.unix  
org.apache.hadoop.nfs  
org.apache.hadoop.nfs.nfs3  
org.apache.hadoop.nfs.nfs3.request  
org.apache.hadoop.nfs.nfs3.response  
org.apache.hadoop.oncrpc  
org.apache.hadoop.oncrpc.security  
org.apache.hadoop.portmap  
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.security.proto  
org.apache.hadoop.security.protocolPB  
org.apache.hadoop.security.ssl  
org.apache.hadoop.service  
org.apache.hadoop.streaming Hadoop Streaming is a utility which allows users to create and run Map-Reduce jobs with any executables (e.g.
org.apache.hadoop.streaming.io  
org.apache.hadoop.tools.mapred  
org.apache.hadoop.tools.mapred.lib  
org.apache.hadoop.tools.proto  
org.apache.hadoop.tools.protocolPB  
org.apache.hadoop.tools.rumen Rumen is a data extraction and analysis tool built for Apache Hadoop.
org.apache.hadoop.tools.rumen.anonymization  
org.apache.hadoop.tools.rumen.datatypes  
org.apache.hadoop.tools.rumen.datatypes.util  
org.apache.hadoop.tools.rumen.serializers  
org.apache.hadoop.tools.rumen.state  
org.apache.hadoop.tools.util  
org.apache.hadoop.typedbytes Typed bytes are sequences of bytes in which the first byte is a type code.
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.gridmix  
org.apache.hadoop.mapred.gridmix.emulators.resourceusage  
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.mapred.tools Command-line tools associated with the org.apache.hadoop.mapred package.
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.task.annotation  
org.apache.hadoop.mapreduce.tools  
org.apache.hadoop.mapreduce.v2  
org.apache.hadoop.mapreduce.v2.app.webapp.dao  
org.apache.hadoop.mapreduce.v2.hs.client  
org.apache.hadoop.mapreduce.v2.hs.proto  
org.apache.hadoop.mapreduce.v2.hs.protocol  
org.apache.hadoop.mapreduce.v2.hs.protocolPB  
org.apache.hadoop.mapreduce.v2.hs.server  
org.apache.hadoop.mapreduce.v2.hs.webapp.dao  
org.apache.hadoop.mapreduce.v2.security  

 

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  
org.apache.hadoop.yarn.applications.unmanagedamlauncher  
org.apache.hadoop.yarn.client  
org.apache.hadoop.yarn.client.api  
org.apache.hadoop.yarn.client.api.async  
org.apache.hadoop.yarn.client.api.async.impl  
org.apache.hadoop.yarn.client.api.impl  
org.apache.hadoop.yarn.client.cli  
org.apache.hadoop.yarn.conf  
org.apache.hadoop.yarn.event  
org.apache.hadoop.yarn.exceptions  
org.apache.hadoop.yarn.logaggregation  
org.apache.hadoop.yarn.security  
org.apache.hadoop.yarn.security.admin  
org.apache.hadoop.yarn.security.client  
org.apache.hadoop.yarn.sls  
org.apache.hadoop.yarn.sls.appmaster  
org.apache.hadoop.yarn.sls.conf  
org.apache.hadoop.yarn.sls.nodemanager  
org.apache.hadoop.yarn.sls.scheduler  
org.apache.hadoop.yarn.sls.utils  
org.apache.hadoop.yarn.sls.web  
org.apache.hadoop.yarn.state  
org.apache.hadoop.yarn.util  
org.apache.hadoop.yarn.util.resource  

 



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