Package org.apache.hadoop.hdfs.server.common

package org.apache.hadoop.hdfs.server.common
  • Class
    Description
    org.apache.hadoop.hdfs.server.common.AutoCloseDataSetLock
    Extending AutoCloseableLock such that the users can use a try-with-resource syntax.
    BlockAlias
    Interface used to load provided blocks.
    org.apache.hadoop.hdfs.server.common.DataNodeLockManager<T extends org.apache.hadoop.hdfs.server.common.AutoCloseDataSetLock>
    Use for manage a set of lock for datanode.
    DataNodeLockManager.LockLevel
    Acquire block pool level and volume level lock first if you want to acquire dir lock.
    org.apache.hadoop.hdfs.server.common.ECTopologyVerifier
    Class for verifying whether the cluster setup can support all enabled EC policies.
    FileRegion
    This class is used to represent provided blocks that are file regions, i.e., can be described using (path, offset, length).
    org.apache.hadoop.hdfs.server.common.GenerationStamp
    A GenerationStamp is a Hadoop FS primitive, identified by a long.
    org.apache.hadoop.hdfs.server.common.HdfsServerConstants
    Some handy internal HDFS constants
    HdfsServerConstants.BlockUCState
    States, which a block can go through while it is under construction.
    HdfsServerConstants.NamenodeRole
    Defines the NameNode role.
    HdfsServerConstants.NodeType
    Type of the node
    HdfsServerConstants.ReplicaState
    Block replica states, which it can go through while being constructed.
    HdfsServerConstants.RollingUpgradeStartupOption
    Startup options for rolling upgrade.
    HdfsServerConstants.StartupOption
    Startup options
    org.apache.hadoop.hdfs.server.common.HostRestrictingAuthorizationFilter
    An HTTP filter that can filter requests based on Hosts.
    org.apache.hadoop.hdfs.server.common.HostRestrictingAuthorizationFilter.HttpInteraction
     
    org.apache.hadoop.hdfs.server.common.HttpGetFailedException
     
    org.apache.hadoop.hdfs.server.common.HttpPutFailedException
     
    org.apache.hadoop.hdfs.server.common.InconsistentFSStateException
    The exception is thrown when file system state is inconsistent and is not recoverable.
    org.apache.hadoop.hdfs.server.common.IncorrectVersionException
    The exception is thrown when external version does not match current version of the application.
    org.apache.hadoop.hdfs.server.common.JspHelper
     
    org.apache.hadoop.hdfs.server.common.MetricsLoggerTask
    MetricsLoggerTask can be used as utility to dump metrics to log.
    org.apache.hadoop.hdfs.server.common.NoLockManager
    Some ut or temp replicaMap not need to lock with DataSetLockManager.
    org.apache.hadoop.hdfs.server.common.Storage
    Storage information file.
    org.apache.hadoop.hdfs.server.common.Storage.FormatConfirmable
    Interface for classes which need to have the user confirm their formatting during NameNode -format and other similar operations.
    org.apache.hadoop.hdfs.server.common.Storage.StorageDirectory
    One of the storage directories.
    org.apache.hadoop.hdfs.server.common.Storage.StorageDirType
    An interface to denote storage directory type Implementations can define a type for storage directory by implementing this interface.
    Storage.StorageState
     
    org.apache.hadoop.hdfs.server.common.StorageErrorReporter
    Interface which implementations of JournalManager can use to report errors on underlying storage directories.
    org.apache.hadoop.hdfs.server.common.StorageInfo
    Common class for storage information.
    org.apache.hadoop.hdfs.server.common.TokenVerifier<T extends AbstractDelegationTokenIdentifier>
    Interface to verify delegation tokens passed through WebHDFS.
    org.apache.hadoop.hdfs.server.common.Util