| org.apache.hadoop | 
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| org.apache.hadoop.classification | 
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| org.apache.hadoop.conf | 
 Configuration of system parameters. 
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| org.apache.hadoop.contrib.utils.join | 
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| org.apache.hadoop.crypto | 
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| org.apache.hadoop.crypto.key | 
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements. 
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| org.apache.hadoop.crypto.key.kms | 
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| org.apache.hadoop.crypto.key.kms.server | 
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| org.apache.hadoop.crypto.random | 
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| org.apache.hadoop.examples | 
 Hadoop example code. 
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| org.apache.hadoop.examples.dancing | 
This package is a distributed implementation of Knuth's  dancing links
algorithm that can run under Hadoop.  
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| org.apache.hadoop.examples.pi | 
 This package consists of a map/reduce application,
  distbbp,
  which computes exact binary digits of the mathematical constant π. 
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| org.apache.hadoop.examples.pi.math | 
 This package provides useful mathematical library classes
  for the distbbp program. 
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| org.apache.hadoop.examples.terasort | 
This package consists of 3 map/reduce applications for Hadoop to
compete in the annual  terabyte sort
competition.  
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| org.apache.hadoop.filecache | 
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| org.apache.hadoop.fs | 
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| org.apache.hadoop.fs.adl | 
 Supporting classes for metrics instrumentation. 
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| org.apache.hadoop.fs.adl.oauth2 | 
 public interface to expose OAuth2 authentication related features. 
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| org.apache.hadoop.fs.aliyun.oss | 
 Aliyun OSS Filesystem. 
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| org.apache.hadoop.fs.azure | 
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| org.apache.hadoop.fs.azure.metrics | 
 
Infrastructure for a Metrics2 source that provides information on Windows 
Azure Filesystem for Hadoop instances. 
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| org.apache.hadoop.fs.azurebfs | 
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| org.apache.hadoop.fs.azurebfs.constants | 
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| org.apache.hadoop.fs.azurebfs.contracts | 
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| org.apache.hadoop.fs.azurebfs.contracts.exceptions | 
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| org.apache.hadoop.fs.azurebfs.contracts.services | 
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| org.apache.hadoop.fs.azurebfs.oauth2 | 
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements. 
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| org.apache.hadoop.fs.crypto | 
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| org.apache.hadoop.fs.ftp | 
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| org.apache.hadoop.fs.http | 
 Filesystem implementations that allow Hadoop to read directly from
 HTTP / HTTPS endpoints. 
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| org.apache.hadoop.fs.http.client | 
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| org.apache.hadoop.fs.http.server | 
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| org.apache.hadoop.fs.protocolPB | 
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements. 
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| org.apache.hadoop.fs.s3native | 
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| org.apache.hadoop.fs.sftp | 
 SFTP FileSystem package. 
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| org.apache.hadoop.fs.shell.find | 
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| org.apache.hadoop.fs.swift.auth | 
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| org.apache.hadoop.fs.swift.auth.entities | 
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| org.apache.hadoop.fs.swift.exceptions | 
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| org.apache.hadoop.fs.swift.http | 
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| org.apache.hadoop.fs.swift.snative | 
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| org.apache.hadoop.fs.swift.util | 
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| org.apache.hadoop.ha | 
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| org.apache.hadoop.ha.proto | 
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| org.apache.hadoop.ha.protocolPB | 
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| org.apache.hadoop.http.lib | 
 This package provides user-selectable (via configuration) classes that add
functionality to the web UI. 
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| org.apache.hadoop.io | 
 Generic i/o code for use when reading and writing data to the network,
to databases, and to files. 
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| org.apache.hadoop.io.compress | 
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| org.apache.hadoop.io.erasurecode | 
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| org.apache.hadoop.io.erasurecode.coder.util | 
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| org.apache.hadoop.io.erasurecode.grouper | 
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| org.apache.hadoop.io.file.tfile | 
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| org.apache.hadoop.io.serializer | 
 
This package provides a mechanism for using different serialization frameworks
in Hadoop. 
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| org.apache.hadoop.io.serializer.avro | 
 
This package provides Avro serialization in Hadoop. 
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| org.apache.hadoop.ipc.proto | 
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| org.apache.hadoop.ipc.protobuf | 
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| org.apache.hadoop.ipc.protocolPB | 
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| org.apache.hadoop.lib.lang | 
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| org.apache.hadoop.lib.server | 
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| org.apache.hadoop.lib.service | 
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| org.apache.hadoop.lib.service.hadoop | 
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| org.apache.hadoop.lib.service.instrumentation | 
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| org.apache.hadoop.lib.service.scheduler | 
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| org.apache.hadoop.lib.service.security | 
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| org.apache.hadoop.lib.servlet | 
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| org.apache.hadoop.lib.util | 
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| org.apache.hadoop.lib.wsrs | 
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| org.apache.hadoop.log | 
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| org.apache.hadoop.log.metrics | 
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| org.apache.hadoop.maven.plugin.cmakebuilder | 
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| org.apache.hadoop.maven.plugin.paralleltests | 
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| org.apache.hadoop.maven.plugin.protoc | 
 Plugins to generate Java files based on protocol buffers with the protoc
 command. 
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| org.apache.hadoop.maven.plugin.resourcegz | 
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| org.apache.hadoop.maven.plugin.shade.resource | 
 Resource handling plugins used internal to the Hadoop build. 
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| org.apache.hadoop.maven.plugin.util | 
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| org.apache.hadoop.maven.plugin.versioninfo | 
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| org.apache.hadoop.metrics2 | 
 Metrics 2.0 
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| org.apache.hadoop.metrics2.annotation | 
 Annotation interfaces for metrics instrumentation 
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| org.apache.hadoop.metrics2.filter | 
 Builtin metrics filters (to be used in metrics config files) 
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| org.apache.hadoop.metrics2.lib | 
 A collection of library classes for implementing metrics sources 
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| org.apache.hadoop.metrics2.sink | 
 Builtin metrics sinks 
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| org.apache.hadoop.metrics2.sink.ganglia | 
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| org.apache.hadoop.metrics2.source | 
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| org.apache.hadoop.metrics2.util | 
 General helpers for implementing source and sinks 
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| org.apache.hadoop.minikdc | 
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| org.apache.hadoop.mount | 
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| org.apache.hadoop.net | 
 Network-related classes. 
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| org.apache.hadoop.net.unix | 
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| org.apache.hadoop.nfs | 
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| org.apache.hadoop.nfs.nfs3 | 
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| org.apache.hadoop.nfs.nfs3.request | 
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| org.apache.hadoop.nfs.nfs3.response | 
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| org.apache.hadoop.oncrpc | 
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| org.apache.hadoop.oncrpc.security | 
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| org.apache.hadoop.portmap | 
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| 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. 
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| org.apache.hadoop.registry.cli | 
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| org.apache.hadoop.registry.client.api | 
 YARN Registry Client API. 
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| org.apache.hadoop.registry.client.binding | 
 Registry binding utility classes. 
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| org.apache.hadoop.registry.client.exceptions | 
 Registry Service Exceptions 
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| org.apache.hadoop.registry.client.impl | 
 Registry client services 
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| org.apache.hadoop.registry.client.impl.zk | 
 Core Zookeeper support. 
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| org.apache.hadoop.registry.client.types | 
 This package contains all the data types which can be saved to the registry
 and/or marshalled to and from JSON. 
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| org.apache.hadoop.registry.client.types.yarn | 
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| org.apache.hadoop.registry.server | 
 Server-side classes for the registry 
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| org.apache.hadoop.registry.server.dns | 
 DNS Server classes. 
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| org.apache.hadoop.registry.server.integration | 
 This package contains the classes which integrate with the YARN resource
 manager. 
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| org.apache.hadoop.registry.server.services | 
 Basic services for the YARN registry
 
   
     The RegistryAdminService
     extends the shared YARN Registry client with registry setup and
     (potentially asynchronous) administrative actions. 
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| org.apache.hadoop.resourceestimator.common.api | 
 The common APIs for the resource estimator. 
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| org.apache.hadoop.resourceestimator.common.config | 
 The common configuration for the resource estimator. 
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| org.apache.hadoop.resourceestimator.common.exception | 
 The common exception for the resource estimator. 
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| org.apache.hadoop.resourceestimator.common.serialization | 
 SkylineStore serialization module. 
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| org.apache.hadoop.resourceestimator.service | 
 Resource estimator service. 
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| org.apache.hadoop.resourceestimator.skylinestore.api | 
 APIs for the SkylineStore. 
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| org.apache.hadoop.resourceestimator.skylinestore.exceptions | 
 SkylineStore exception module. 
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| org.apache.hadoop.resourceestimator.skylinestore.impl | 
 Implementation for SkylineStore. 
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| org.apache.hadoop.resourceestimator.skylinestore.validator | 
 Validator for SkylineStore. 
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| org.apache.hadoop.resourceestimator.solver.api | 
 API for Solver. 
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| org.apache.hadoop.resourceestimator.solver.exceptions | 
 Exception module. 
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| org.apache.hadoop.resourceestimator.solver.impl | 
 Implementation for Solver. 
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| org.apache.hadoop.resourceestimator.solver.preprocess | 
 Preprocessor for Solver. 
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| org.apache.hadoop.resourceestimator.translator.api | 
 API for Translator. 
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| org.apache.hadoop.resourceestimator.translator.exceptions | 
 Exception for Translator. 
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| org.apache.hadoop.resourceestimator.translator.impl | 
 Implementation for Translator. 
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| org.apache.hadoop.resourceestimator.translator.validator | 
 Validator for Translator. 
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| org.apache.hadoop.security | 
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| org.apache.hadoop.security.alias | 
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| org.apache.hadoop.security.authentication.client | 
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| org.apache.hadoop.security.authentication.examples | 
  | 
| org.apache.hadoop.security.authentication.util | 
  | 
| org.apache.hadoop.security.authorize | 
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| org.apache.hadoop.security.http | 
  | 
| 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.web | 
  | 
| org.apache.hadoop.service | 
  | 
| org.apache.hadoop.service.launcher | 
 This package contains classes, interfaces and exceptions to launch
 YARN services from the command line. 
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| org.apache.hadoop.streaming | 
 Hadoop Streaming is a utility which allows users to create and run 
Map-Reduce jobs with any executables (e.g. 
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| org.apache.hadoop.streaming.io | 
  | 
| org.apache.hadoop.streaming.mapreduce | 
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| org.apache.hadoop.tools | 
 Command-line tools for MapReduce. 
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| 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.  
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| 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.tracing | 
  | 
| 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.curator | 
 This package provides utilities to interact with Curator ZooKeeper. 
 | 
| org.apache.hadoop.util.hash | 
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