Overview (Apache Hadoop HDFS 3.5.0 API)
Description: package index

# Apache Hadoop HDFS 3.5.0 API

Apache Hadoop HDFS API
Package
Description
org.apache.hadoop.hdfs
A distributed implementation of `FileSystem`.
org.apache.hadoop.hdfs.net
org.apache.hadoop.hdfs.protocol
org.apache.hadoop.hdfs.protocol.datatransfer
This package contains classes related to hdfs data transfer protocol.
org.apache.hadoop.hdfs.protocol.datatransfer.sasl
Classes for data transfer SASL implementation.
org.apache.hadoop.hdfs.protocolPB
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
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.aliasmap
org.apache.hadoop.hdfs.server.balancer
The Balancer is a tool for balancing the data across the storage devices of an HDFS cluster.
org.apache.hadoop.hdfs.server.blockmanagement
org.apache.hadoop.hdfs.server.common
org.apache.hadoop.hdfs.server.common.blockaliasmap
The AliasMap defines mapping of PROVIDED HDFS blocks to data in remote storage systems.
org.apache.hadoop.hdfs.server.common.blockaliasmap.impl
org.apache.hadoop.hdfs.server.common.sps
This package provides commonly used classes for the block movement.
org.apache.hadoop.hdfs.server.datanode
org.apache.hadoop.hdfs.server.datanode.checker
Datanode support for running disk checks.
org.apache.hadoop.hdfs.server.datanode.erasurecode
Datanode side striping + erasure coding related task processing.
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
Data node HTTP classes.
org.apache.hadoop.hdfs.server.datanode.web.webhdfs
org.apache.hadoop.hdfs.server.diskbalancer
Disk Balancer connects to a `.DataNode` and attempts to spread data across all volumes evenly.
org.apache.hadoop.hdfs.server.diskbalancer.command
Commands for disk balancer command line tool.
org.apache.hadoop.hdfs.server.diskbalancer.connectors
Connectors package is a set of logical connectors that connect to various data sources to read the hadoop cluster information.
org.apache.hadoop.hdfs.server.diskbalancer.datamodel
Disk Balancer Data Model is the Data Model for the cluster that Disk Balancer is working against.
org.apache.hadoop.hdfs.server.diskbalancer.planner
Planner takes a DiskBalancerVolumeSet, threshold and computes a series of steps that lead to an even data distribution between volumes of this DiskBalancerVolumeSet.
org.apache.hadoop.hdfs.server.mover
Mover is a data migration tool for tiered storage.
org.apache.hadoop.hdfs.server.namenode
org.apache.hadoop.hdfs.server.namenode.fgl
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
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.sps
This package provides a mechanism for satisfying the storage policy of a path.
org.apache.hadoop.hdfs.server.namenode.startupprogress
This package provides a mechanism for tracking NameNode startup progress.
org.apache.hadoop.hdfs.server.namenode.top
org.apache.hadoop.hdfs.server.namenode.top.metrics
org.apache.hadoop.hdfs.server.namenode.top.window
org.apache.hadoop.hdfs.server.namenode.visitor
Use the visitor pattern to visit namespace tree.
org.apache.hadoop.hdfs.server.namenode.web.resources
org.apache.hadoop.hdfs.server.protocol
org.apache.hadoop.hdfs.server.sps
This package provides a mechanism for satisfying the storage policy of a path.
org.apache.hadoop.hdfs.server.sps.metrics
This package provides the ability to expose external SPS metrics to JMX.
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