Uses of Annotation Interface
org.apache.hadoop.hdfs.server.namenode.ha.ReadOnly

Packages that use ReadOnly

Package	Description
org.apache.hadoop.hdfs.protocol	Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.

Uses of ReadOnly in org.apache.hadoop.hdfs.protocol

Methods in org.apache.hadoop.hdfs.protocol with annotations of type ReadOnly

Modifier and Type	Method	Description
void	ClientProtocol.checkAccess(String path, org.apache.hadoop.fs.permission.FsAction mode)	Checks if the user can access a path.
org.apache.hadoop.fs.permission.AclStatus	ClientProtocol.getAclStatus(String src)	Gets the ACLs of files and directories.
BatchedDirectoryListing	ClientProtocol.getBatchedListing(String[] srcs, byte[] startAfter, boolean needLocation)	Get a partial listing of the input directories
LocatedBlocks	ClientProtocol.getBlockLocations(String src, long offset, long length)	Get locations of the blocks of the specified file within the specified range.
org.apache.hadoop.fs.ContentSummary	ClientProtocol.getContentSummary(String path)	Get ContentSummary rooted at the specified directory.
long	ClientProtocol.getCurrentEditLogTxid()	Get the highest txid the NameNode knows has been written to the edit log, or -1 if the NameNode's edit log is not yet open for write.
DataEncryptionKey	ClientProtocol.getDataEncryptionKey()
DatanodeInfo[]	ClientProtocol.getDatanodeReport(HdfsConstants.DatanodeReportType type)	Get a report on the system's current datanodes.
DatanodeStorageReport[]	ClientProtocol.getDatanodeStorageReport(HdfsConstants.DatanodeReportType type)	Get a report on the current datanode storages.
ECBlockGroupStats	ClientProtocol.getECBlockGroupStats()	Get statistics pertaining to blocks of type BlockType.STRIPED in the filesystem.
ECTopologyVerifierResult	ClientProtocol.getECTopologyResultForPolicies(String... policyNames)	Verifies if the given policies are supported in the given cluster setup.
EventBatchList	ClientProtocol.getEditsFromTxid(long txid)	Get an ordered list of batches of events corresponding to the edit log transactions for txids equal to or greater than txid.
org.apache.hadoop.fs.Path	ClientProtocol.getEnclosingRoot(String src)	Get the enclosing root for a path.
Map<String,String>	ClientProtocol.getErasureCodingCodecs()	Get the erasure coding codecs loaded in Namenode.
ErasureCodingPolicyInfo[]	ClientProtocol.getErasureCodingPolicies()	Get the erasure coding policies loaded in Namenode, excluding REPLICATION policy.
ErasureCodingPolicy	ClientProtocol.getErasureCodingPolicy(String src)	Get the information about the EC policy for the path.
EncryptionZone	ClientProtocol.getEZForPath(String src)	Get the encryption zone for a path.
HdfsFileStatus	ClientProtocol.getFileInfo(String src)	Get the file info for a specific file or directory.
HdfsFileStatus	ClientProtocol.getFileLinkInfo(String src)	Get the file info for a specific file or directory.
org.apache.hadoop.ha.HAServiceProtocol.HAServiceState	ClientProtocol.getHAServiceState()	Get HA service state of the server.
String	ClientProtocol.getLinkTarget(String path)	Return the target of the given symlink.
DirectoryListing	ClientProtocol.getListing(String src, byte[] startAfter, boolean needLocation)	Get a partial listing of the indicated directory.
HdfsLocatedFileStatus	ClientProtocol.getLocatedFileInfo(String src, boolean needBlockToken)	Get the file info for a specific file or directory with LocatedBlocks.
long	ClientProtocol.getPreferredBlockSize(String filename)	Get the block size for the given file.
org.apache.hadoop.fs.QuotaUsage	ClientProtocol.getQuotaUsage(String path)	Get QuotaUsage rooted at the specified directory.
ReplicatedBlockStats	ClientProtocol.getReplicatedBlockStats()	Get statistics pertaining to blocks of type BlockType.CONTIGUOUS in the filesystem.
org.apache.hadoop.fs.FsServerDefaults	ClientProtocol.getServerDefaults()	Get server default values for a number of configuration params.
DatanodeInfo[]	ClientProtocol.getSlowDatanodeReport()	Get report on all of the slow Datanodes.
SnapshotDiffReport	ClientProtocol.getSnapshotDiffReport(String snapshotRoot, String fromSnapshot, String toSnapshot)	Get the difference between two snapshots, or between a snapshot and the current tree of a directory.
SnapshotDiffReportListing	ClientProtocol.getSnapshotDiffReportListing(String snapshotRoot, String fromSnapshot, String toSnapshot, byte[] startPath, int index)	Get the difference between two snapshots of a directory iteratively.
SnapshotStatus[]	ClientProtocol.getSnapshotListing(String snapshotRoot)	Get listing of all the snapshots for a snapshottable directory.
SnapshottableDirectoryStatus[]	ClientProtocol.getSnapshottableDirListing()	Get the list of snapshottable directories that are owned by the current user.
long[]	ClientProtocol.getStats()	Get an array of aggregated statistics combining blocks of both type BlockType.CONTIGUOUS and BlockType.STRIPED in the filesystem.
BlockStoragePolicy[]	ClientProtocol.getStoragePolicies()	Get all the available block storage policies.
BlockStoragePolicy	ClientProtocol.getStoragePolicy(String path)	Get the storage policy for a file/directory.
List<XAttr>	ClientProtocol.getXAttrs(String src, List<XAttr> xAttrs)	Get xattrs of a file or directory.
boolean	ClientProtocol.isFileClosed(String src)	Get the close status of a file.
org.apache.hadoop.fs.BatchedRemoteIterator.BatchedEntries<CacheDirectiveEntry>	ClientProtocol.listCacheDirectives(long prevId, CacheDirectiveInfo filter)	List the set of cached paths of a cache pool.
org.apache.hadoop.fs.BatchedRemoteIterator.BatchedEntries<CachePoolEntry>	ClientProtocol.listCachePools(String prevPool)	List the set of cache pools.
CorruptFileBlocks	ClientProtocol.listCorruptFileBlocks(String path, String cookie)
org.apache.hadoop.fs.BatchedRemoteIterator.BatchedEntries<EncryptionZone>	ClientProtocol.listEncryptionZones(long prevId)	Used to implement cursor-based batched listing of EncryptionZones.
org.apache.hadoop.fs.BatchedRemoteIterator.BatchedEntries<OpenFileEntry>	ClientProtocol.listOpenFiles(long prevId)	Deprecated.
org.apache.hadoop.fs.BatchedRemoteIterator.BatchedEntries<OpenFileEntry>	ClientProtocol.listOpenFiles(long prevId, EnumSet<OpenFilesIterator.OpenFilesType> openFilesTypes, String path)	List open files in the system in batches.
org.apache.hadoop.fs.BatchedRemoteIterator.BatchedEntries<ZoneReencryptionStatus>	ClientProtocol.listReencryptionStatus(long prevId)	Used to implement cursor-based batched listing of ZoneReencryptionStatuss.
List<XAttr>	ClientProtocol.listXAttrs(String src)	List the xattrs names for a file or directory.
void	ClientProtocol.msync()	Called by client to wait until the server has reached the state id of the client.