Apache Hadoop Main 2.2.0 API

Hadoop is a distributed computing platform.

See: Description

Packages 
Package Description
org.apache.hadoop  
org.apache.hadoop.classification  
org.apache.hadoop.classification.tools  
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.local  
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.shell  
org.apache.hadoop.fs.viewfs  
org.apache.hadoop.ha  
org.apache.hadoop.ha.proto  
org.apache.hadoop.ha.protocolPB  
org.apache.hadoop.hdfs
A distributed implementation of FileSystem.
org.apache.hadoop.hdfs.client  
org.apache.hadoop.hdfs.net  
org.apache.hadoop.hdfs.nfs.mount  
org.apache.hadoop.hdfs.nfs.nfs3  
org.apache.hadoop.hdfs.protocol  
org.apache.hadoop.hdfs.protocol.datatransfer  
org.apache.hadoop.hdfs.protocol.proto  
org.apache.hadoop.hdfs.protocolPB  
org.apache.hadoop.hdfs.qjournal.client  
org.apache.hadoop.hdfs.qjournal.protocol  
org.apache.hadoop.hdfs.qjournal.protocolPB  
org.apache.hadoop.hdfs.qjournal.server  
org.apache.hadoop.hdfs.security.token.block  
org.apache.hadoop.hdfs.security.token.delegation  
org.apache.hadoop.hdfs.server.balancer  
org.apache.hadoop.hdfs.server.blockmanagement  
org.apache.hadoop.hdfs.server.common  
org.apache.hadoop.hdfs.server.datanode  
org.apache.hadoop.hdfs.server.datanode.fsdataset  
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl  
org.apache.hadoop.hdfs.server.datanode.metrics  
org.apache.hadoop.hdfs.server.datanode.web.resources  
org.apache.hadoop.hdfs.server.namenode  
org.apache.hadoop.hdfs.server.namenode.ha  
org.apache.hadoop.hdfs.server.namenode.ha.proto  
org.apache.hadoop.hdfs.server.namenode.metrics  
org.apache.hadoop.hdfs.server.namenode.snapshot  
org.apache.hadoop.hdfs.server.namenode.startupprogress
This package provides a mechanism for tracking NameNode startup progress.
org.apache.hadoop.hdfs.server.namenode.web.resources  
org.apache.hadoop.hdfs.server.protocol  
org.apache.hadoop.hdfs.tools  
org.apache.hadoop.hdfs.tools.offlineEditsViewer  
org.apache.hadoop.hdfs.tools.offlineImageViewer  
org.apache.hadoop.hdfs.tools.snapshot  
org.apache.hadoop.hdfs.util  
org.apache.hadoop.hdfs.web  
org.apache.hadoop.hdfs.web.resources  
org.apache.hadoop.http  
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.compress.bzip2  
org.apache.hadoop.io.compress.lz4  
org.apache.hadoop.io.compress.snappy  
org.apache.hadoop.io.compress.zlib  
org.apache.hadoop.io.file.tfile  
org.apache.hadoop.io.nativeio  
org.apache.hadoop.io.retry
A mechanism for selectively retrying methods that throw exceptions under certain circumstances.
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
Tools to help define network clients and servers.
org.apache.hadoop.ipc.metrics
RPC related metrics.
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.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.counters
This package contains the implementations of different types of map-reduce counters.
org.apache.hadoop.mapreduce.filecache  
org.apache.hadoop.mapreduce.jobhistory  
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.protocol  
org.apache.hadoop.mapreduce.security  
org.apache.hadoop.mapreduce.security.token  
org.apache.hadoop.mapreduce.security.token.delegation  
org.apache.hadoop.mapreduce.server.jobtracker  
org.apache.hadoop.mapreduce.server.tasktracker  
org.apache.hadoop.mapreduce.split  
org.apache.hadoop.mapreduce.task  
org.apache.hadoop.mapreduce.task.annotation  
org.apache.hadoop.mapreduce.task.reduce  
org.apache.hadoop.mapreduce.tools  
org.apache.hadoop.mapreduce.util  
org.apache.hadoop.mapreduce.v2  
org.apache.hadoop.mapreduce.v2.api  
org.apache.hadoop.mapreduce.v2.api.impl.pb.client  
org.apache.hadoop.mapreduce.v2.api.impl.pb.service  
org.apache.hadoop.mapreduce.v2.api.protocolrecords  
org.apache.hadoop.mapreduce.v2.api.protocolrecords.impl.pb  
org.apache.hadoop.mapreduce.v2.api.records  
org.apache.hadoop.mapreduce.v2.api.records.impl.pb  
org.apache.hadoop.mapreduce.v2.app  
org.apache.hadoop.mapreduce.v2.app.client  
org.apache.hadoop.mapreduce.v2.app.commit  
org.apache.hadoop.mapreduce.v2.app.job  
org.apache.hadoop.mapreduce.v2.app.job.event  
org.apache.hadoop.mapreduce.v2.app.job.impl  
org.apache.hadoop.mapreduce.v2.app.launcher  
org.apache.hadoop.mapreduce.v2.app.local  
org.apache.hadoop.mapreduce.v2.app.metrics  
org.apache.hadoop.mapreduce.v2.app.rm  
org.apache.hadoop.mapreduce.v2.app.security.authorize  
org.apache.hadoop.mapreduce.v2.app.speculate  
org.apache.hadoop.mapreduce.v2.app.webapp  
org.apache.hadoop.mapreduce.v2.app.webapp.dao  
org.apache.hadoop.mapreduce.v2.hs  
org.apache.hadoop.mapreduce.v2.hs.webapp  
org.apache.hadoop.mapreduce.v2.hs.webapp.dao  
org.apache.hadoop.mapreduce.v2.jobhistory  
org.apache.hadoop.mapreduce.v2.proto  
org.apache.hadoop.mapreduce.v2.security  
org.apache.hadoop.mapreduce.v2.security.client  
org.apache.hadoop.mapreduce.v2.util  
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.jvm  
org.apache.hadoop.metrics.spi
The Service Provider Interface for the Metrics API.
org.apache.hadoop.metrics.util  
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.impl
A metrics system implementation
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.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.authorize  
org.apache.hadoop.security.proto  
org.apache.hadoop.security.protocolPB  
org.apache.hadoop.security.ssl  
org.apache.hadoop.security.token  
org.apache.hadoop.security.token.delegation  
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
Command-line tools for MapReduce.
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  
org.apache.hadoop.yarn  
org.apache.hadoop.yarn.api  
org.apache.hadoop.yarn.api.impl.pb.client  
org.apache.hadoop.yarn.api.impl.pb.service  
org.apache.hadoop.yarn.api.protocolrecords  
org.apache.hadoop.yarn.api.protocolrecords.impl.pb  
org.apache.hadoop.yarn.api.records  
org.apache.hadoop.yarn.api.records.impl.pb  
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.factories  
org.apache.hadoop.yarn.factories.impl.pb  
org.apache.hadoop.yarn.factory.providers  
org.apache.hadoop.yarn.ipc  
org.apache.hadoop.yarn.lib  
org.apache.hadoop.yarn.logaggregation  
org.apache.hadoop.yarn.proto  
org.apache.hadoop.yarn.security  
org.apache.hadoop.yarn.security.admin  
org.apache.hadoop.yarn.security.client  
org.apache.hadoop.yarn.server  
org.apache.hadoop.yarn.server.api  
org.apache.hadoop.yarn.server.api.impl.pb.client  
org.apache.hadoop.yarn.server.api.impl.pb.service  
org.apache.hadoop.yarn.server.api.protocolrecords  
org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb  
org.apache.hadoop.yarn.server.api.records  
org.apache.hadoop.yarn.server.api.records.impl.pb  
org.apache.hadoop.yarn.server.nodemanager  
org.apache.hadoop.yarn.server.nodemanager.api  
org.apache.hadoop.yarn.server.nodemanager.api.impl.pb  
org.apache.hadoop.yarn.server.nodemanager.api.impl.pb.client  
org.apache.hadoop.yarn.server.nodemanager.api.impl.pb.service  
org.apache.hadoop.yarn.server.nodemanager.api.protocolrecords  
org.apache.hadoop.yarn.server.nodemanager.api.protocolrecords.impl.pb  
org.apache.hadoop.yarn.server.nodemanager.containermanager  
org.apache.hadoop.yarn.server.nodemanager.containermanager.application  
org.apache.hadoop.yarn.server.nodemanager.containermanager.container  
org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher  
org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer  
org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.event  
org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.security  
org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation  
org.apache.hadoop.yarn.server.nodemanager.containermanager.loghandler  
org.apache.hadoop.yarn.server.nodemanager.containermanager.loghandler.event  
org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor  
org.apache.hadoop.yarn.server.nodemanager.metrics  
org.apache.hadoop.yarn.server.nodemanager.security  
org.apache.hadoop.yarn.server.nodemanager.security.authorize  
org.apache.hadoop.yarn.server.nodemanager.util  
org.apache.hadoop.yarn.server.nodemanager.webapp  
org.apache.hadoop.yarn.server.nodemanager.webapp.dao  
org.apache.hadoop.yarn.server.resourcemanager  
org.apache.hadoop.yarn.server.resourcemanager.amlauncher  
org.apache.hadoop.yarn.server.resourcemanager.monitor  
org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity  
org.apache.hadoop.yarn.server.resourcemanager.recovery  
org.apache.hadoop.yarn.server.resourcemanager.recovery.records  
org.apache.hadoop.yarn.server.resourcemanager.recovery.records.impl.pb  
org.apache.hadoop.yarn.server.resourcemanager.resource  
org.apache.hadoop.yarn.server.resourcemanager.rmapp  
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt  
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event  
org.apache.hadoop.yarn.server.resourcemanager.rmcontainer  
org.apache.hadoop.yarn.server.resourcemanager.rmnode  
org.apache.hadoop.yarn.server.resourcemanager.scheduler  
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity  
org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica  
org.apache.hadoop.yarn.server.resourcemanager.scheduler.event  
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair  
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies  
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo  
org.apache.hadoop.yarn.server.resourcemanager.security  
org.apache.hadoop.yarn.server.resourcemanager.security.authorize  
org.apache.hadoop.yarn.server.resourcemanager.webapp  
org.apache.hadoop.yarn.server.resourcemanager.webapp.dao  
org.apache.hadoop.yarn.server.security  
org.apache.hadoop.yarn.server.utils  
org.apache.hadoop.yarn.server.webproxy  
org.apache.hadoop.yarn.server.webproxy.amfilter  
org.apache.hadoop.yarn.state  
org.apache.hadoop.yarn.util  
org.apache.hadoop.yarn.util.resource  
org.apache.hadoop.yarn.webapp  
org.apache.hadoop.yarn.webapp.example  
org.apache.hadoop.yarn.webapp.hamlet  
org.apache.hadoop.yarn.webapp.log  
org.apache.hadoop.yarn.webapp.util  
org.apache.hadoop.yarn.webapp.view  

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