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558 lines
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<h5>General</h5>
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<a href="../index.html">Overview</a>
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<a href="../hadoop-project-dist/hadoop-common/SingleCluster.html">Single Node Setup</a>
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<h5>Common</h5>
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<a href="../hadoop-project-dist/hadoop-common/CLIMiniCluster.html">CLI Mini Cluster</a>
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<a href="../hadoop-project-dist/hadoop-common/ServiceLevelAuth.html">Service Level Authorization</a>
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<a href="../hadoop-project-dist/hadoop-common/CredentialProviderAPI.html">Credential Provider API</a>
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<a href="../hadoop-kms/index.html">Hadoop KMS</a>
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<a href="../hadoop-project-dist/hadoop-common/Tracing.html">Tracing</a>
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<a href="../hadoop-project-dist/hadoop-common/UnixShellGuide.html">Unix Shell Guide</a>
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<a href="../hadoop-project-dist/hadoop-common/registry/index.html">Registry</a>
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<a href="../hadoop-project-dist/hadoop-common/AsyncProfilerServlet.html">Async Profiler</a>
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<h5>HDFS</h5>
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsDesign.html">Architecture</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HDFSCommands.html">Commands Reference</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithQJM.html">NameNode HA With QJM</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithNFS.html">NameNode HA With NFS</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/ObserverNameNode.html">Observer NameNode</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/Federation.html">Federation</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/ViewFs.html">ViewFs</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/ViewFsOverloadScheme.html">ViewFsOverloadScheme</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsSnapshots.html">Snapshots</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsPermissionsGuide.html">Permissions and HDFS</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsQuotaAdminGuide.html">Quotas and HDFS</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/LibHdfs.html">libhdfs (C API)</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/WebHDFS.html">WebHDFS (REST API)</a>
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<a href="../hadoop-hdfs-httpfs/index.html">HttpFS</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/ShortCircuitLocalReads.html">Short Circuit Local Reads</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/CentralizedCacheManagement.html">Centralized Cache Management</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsNfsGateway.html">NFS Gateway</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsRollingUpgrade.html">Rolling Upgrade</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/ExtendedAttributes.html">Extended Attributes</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/TransparentEncryption.html">Transparent Encryption</a>
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsMultihoming.html">Multihoming</a>
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</li>
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<li class="none">
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<a href="../hadoop-project-dist/hadoop-hdfs/ArchivalStorage.html">Storage Policies</a>
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<li class="none">
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<a href="../hadoop-project-dist/hadoop-hdfs/MemoryStorage.html">Memory Storage Support</a>
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</li>
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<li class="none">
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<a href="../hadoop-project-dist/hadoop-hdfs/SLGUserGuide.html">Synthetic Load Generator</a>
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</li>
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<li class="none">
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<a href="../hadoop-project-dist/hadoop-hdfs/HDFSErasureCoding.html">Erasure Coding</a>
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</li>
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<li class="none">
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<a href="../hadoop-project-dist/hadoop-hdfs/HDFSDiskbalancer.html">Disk Balancer</a>
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</li>
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<li class="none">
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsUpgradeDomain.html">Upgrade Domain</a>
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<li class="none">
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsDataNodeAdminGuide.html">DataNode Admin</a>
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<li class="none">
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<a href="../hadoop-project-dist/hadoop-hdfs-rbf/HDFSRouterFederation.html">Router Federation</a>
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<li class="none">
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<a href="../hadoop-project-dist/hadoop-hdfs/HdfsProvidedStorage.html">Provided Storage</a>
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</li>
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</ul>
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<h5>MapReduce</h5>
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<ul>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/MapReduceTutorial.html">Tutorial</a>
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</li>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/MapredCommands.html">Commands Reference</a>
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</li>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/MapReduce_Compatibility_Hadoop1_Hadoop2.html">Compatibility with 1.x</a>
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</li>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/EncryptedShuffle.html">Encrypted Shuffle</a>
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</li>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/PluggableShuffleAndPluggableSort.html">Pluggable Shuffle/Sort</a>
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</li>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/DistributedCacheDeploy.html">Distributed Cache Deploy</a>
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</li>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/SharedCacheSupport.html">Support for YARN Shared Cache</a>
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</li>
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</ul>
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<h5>MapReduce REST APIs</h5>
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<ul>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-core/MapredAppMasterRest.html">MR Application Master</a>
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</li>
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<li class="none">
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<a href="../hadoop-mapreduce-client/hadoop-mapreduce-client-hs/HistoryServerRest.html">MR History Server</a>
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</li>
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</ul>
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<h5>YARN</h5>
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<ul>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/YARN.html">Architecture</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/YarnCommands.html">Commands Reference</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/CapacityScheduler.html">Capacity Scheduler</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/FairScheduler.html">Fair Scheduler</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/ResourceManagerRestart.html">ResourceManager Restart</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/ResourceManagerHA.html">ResourceManager HA</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/ResourceModel.html">Resource Model</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/NodeLabel.html">Node Labels</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/NodeAttributes.html">Node Attributes</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/WebApplicationProxy.html">Web Application Proxy</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/TimelineServer.html">Timeline Server</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/TimelineServiceV2.html">Timeline Service V.2</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html">Writing YARN Applications</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/YarnApplicationSecurity.html">YARN Application Security</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/NodeManager.html">NodeManager</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/DockerContainers.html">Running Applications in Docker Containers</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/RuncContainers.html">Running Applications in runC Containers</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/NodeManagerCgroups.html">Using CGroups</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/SecureContainer.html">Secure Containers</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/ReservationSystem.html">Reservation System</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/GracefulDecommission.html">Graceful Decommission</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/OpportunisticContainers.html">Opportunistic Containers</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/Federation.html">YARN Federation</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/SharedCache.html">Shared Cache</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/UsingGpus.html">Using GPU</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/UsingFPGA.html">Using FPGA</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/PlacementConstraints.html">Placement Constraints</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/YarnUI2.html">YARN UI2</a>
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</li>
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</ul>
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<h5>YARN REST APIs</h5>
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<ul>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/WebServicesIntro.html">Introduction</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/ResourceManagerRest.html">Resource Manager</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/NodeManagerRest.html">Node Manager</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/TimelineServer.html#Timeline_Server_REST_API_v1">Timeline Server</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/TimelineServiceV2.html#Timeline_Service_v.2_REST_API">Timeline Service V.2</a>
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</li>
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</ul>
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<h5>YARN Service</h5>
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<ul>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/yarn-service/Overview.html">Overview</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/yarn-service/QuickStart.html">QuickStart</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/yarn-service/Concepts.html">Concepts</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/yarn-service/YarnServiceAPI.html">Yarn Service API</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/yarn-service/ServiceDiscovery.html">Service Discovery</a>
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</li>
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<li class="none">
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<a href="../hadoop-yarn/hadoop-yarn-site/yarn-service/SystemServices.html">System Services</a>
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</li>
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</ul>
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<h5>Hadoop Compatible File Systems</h5>
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<ul>
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<li class="none">
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<a href="../hadoop-aliyun/tools/hadoop-aliyun/index.html">Aliyun OSS</a>
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</li>
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<li class="none">
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<a href="../hadoop-aws/tools/hadoop-aws/index.html">Amazon S3</a>
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</li>
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<li class="none">
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<a href="../hadoop-azure/index.html">Azure Blob Storage</a>
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</li>
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<li class="none">
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<a href="../hadoop-azure-datalake/index.html">Azure Data Lake Storage</a>
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</li>
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<li class="none">
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<a href="../hadoop-cos/cloud-storage/index.html">Tencent COS</a>
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</li>
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<li class="none">
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<a href="../hadoop-huaweicloud/cloud-storage/index.html">Huaweicloud OBS</a>
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</li>
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</ul>
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<h5>Auth</h5>
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<a href="../hadoop-project-dist/hadoop-common/core-default.xml">core-default.xml</a>
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<h1>Hadoop Auth, Java HTTP SPNEGO</h1>
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<p>Hadoop Auth is a Java library consisting of a client and a server components to enable Kerberos SPNEGO authentication for HTTP.</p>
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<p>Hadoop Auth also supports additional authentication mechanisms on the client and the server side via 2 simple interfaces.</p>
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<p>Additionally, it provides a partially implemented derivative of the Kerberos SPNEGO authentication to allow a “mixed” form of authentication where Kerberos SPNEGO is used by non-browsers while an alternate form of authentication (to be implemented by the user) is used for browsers.</p><section>
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<h2><a name="License"></a>License</h2>
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<p>Hadoop Auth is distributed under <a class="externalLink" href="http://www.apache.org/licenses/">Apache License 2.0</a>.</p></section><section>
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<h2><a name="How_Does_Auth_Works.3F"></a>How Does Auth Works?</h2>
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<p>Hadoop Auth enforces authentication on protected resources, once authentiation has been established it sets a signed HTTP Cookie that contains an authentication token with the user name, user principal, authentication type and expiration time.</p>
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<p>Subsequent HTTP client requests presenting the signed HTTP Cookie have access to the protected resources until the HTTP Cookie expires.</p>
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<p>The secret used to sign the HTTP Cookie has multiple implementations that provide different behaviors, including a hardcoded secret string, a rolling randomly generated secret, and a rolling randomly generated secret synchronized between multiple servers using ZooKeeper.</p></section><section>
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<h2><a name="User_Documentation"></a>User Documentation</h2>
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