Uses of Package
org.apache.hadoop.classification

Package
Description
 
 
Configuration of system parameters.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
 
Implementations of AbstractFileSystem for hdfs over rpc and hdfs over web.
Supporting classes for metrics instrumentation.
public interface to expose OAuth2 authentication related features.
Public classes for adding information to any auditing information picked up by filesystem clients.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
A distributed implementation of FileSystem for reading and writing files on Azure Storage.
Support for manifest committer.
 
 
 
 
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
 
 
Google Cloud Storage Filesystem.
This package contains implementation classes for use inside filesystems.
Package for supporting HuaweiCloud Object Storage Service (OBS) as a backend filesystem in Hadoop.
This package provides support for HDFS permission and ACL.
S3A Filesystem.
Support for auditing and ultimately tracing operations.
Authentication and permissions support.
Extensible delegation token support for the S3A connector.
Support for committing the output of analytics jobs directly to S3.
This is the "Magic" committer and support.
Implementation classes private to the S3A store.
Was the location for support for S3 Select.
This package contains support for statistic collection and reporting.
ViewFileSystem and ViewFileSystemOverloadScheme classes.
 
 
A distributed implementation of FileSystem.
This package provides the administrative APIs for HDFS.
 
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
This package contains the implementation of the Protocol Buffers protocols related to HDFS Router.
 
 
 
The AliasMap defines mapping of PROVIDED HDFS blocks to data in remote storage systems.
 
The state store uses modular data storage classes derived from StateStoreDriver to handle querying, updating and deleting data records.
Implementations of state store data providers/drivers.
 
 
OAuth2-based WebHDFS authentication.
Support for embedded HTTP services.
Generic i/o code for use when reading and writing data to the network, to databases, and to files.
 
 
 
This package provides a mechanism for using different serialization frameworks in Hadoop.
This package provides Avro serialization in Hadoop.
Support for dynamic access to filesystem operations which are not available in older hadoop releases.
Tools to help define network clients and servers.
 
 
 
 
 
 
 
 
 
 
This package contains the implementations of different types of map-reduce counters.
 
 
 
 
 
 
 
 
 
Intermediate manifest committer.
Persistence formats.
 
 
 
 
 
 
 
 
Metrics 2.0
Annotation interfaces for metrics instrumentation
Builtin metrics filters (to be used in metrics config files)
A collection of library classes for implementing metrics sources
Builtin metrics sinks
General helpers for implementing source and sinks
Network-related classes.
(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.
YARN Registry Client API.
Registry binding utility classes.
Registry Service Exceptions
Registry client services
Core Zookeeper support.
This package contains all the data types which can be saved to the registry and/or marshalled to and from JSON.
Basic services for the YARN registry The RegistryAdminService extends the shared YARN Registry client with registry setup and (potentially asynchronous) administrative actions.
Classes for hadoop security.
Provides the hadoop credential provider API.
Support for service-level authorization.
Filters for HTTP service security.
Support for delegation tokens.
Router security token delegation.
 
Support for services.
This package contains classes, interfaces and exceptions to launch YARN services from the command line.
Command-line tools for MapReduce.
The Dynamometer tool is used to stress test the HDFS NameNode by setting up a realistic environment consistent of fake DataNodes and a real NameNode with a real FS namesystem and near-real user workload (RPCs).
Common utilities.
 
Support for functional programming within the Hadoop APIs.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
Package org.apache.hadoop.yarn.api.records.timelineservice contains classes which define the data model for ATSv2.
API related to resources.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
 
 
 
 
 
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
 
 
Package org.apache.hadoop.yarn.service.client contains classes for YARN Services Client API.
 
 
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
Package org.apache.hadoop.yarn.util.constraint contains classes which is used as utility class for placement constraints.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.