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PREV CLASS NEXT CLASS FRAMES NO FRAMES | DETAIL: CONSTRUCTORS | METHODS | FIELDS |
Added Methods | |
void cancelDelegationToken(Token ) |
Cancel an existing delegation token. |
void concat(String, |
Moves blocks from srcs to trg and delete srcs |
void createSymlink(String, |
Create a symbolic link to a file or directory. |
FileStatus[] getCorruptFiles() |
@return Array of FileStatus objects referring to corrupted files. |
Token getDelegationToken(Text ) |
Get a valid Delegation Token. |
HdfsFileStatus getFileLinkInfo(String ) |
Get the file info for a specific file or directory. |
String getLinkTarget(String ) |
Resolve the first symbolic link on the specified path. |
FsServerDefaults getServerDefaults() |
Get server default values for a number of configuration params. |
void rename(String, |
Rename src to dst. |
long renewDelegationToken(Token ) |
Renew an existing delegation token. |
boolean restoreFailedStorage(String ) |
Enable/Disable restore failed storage. |
LocatedBlock updateBlockForPipeline(Block, |
Get a new generation stamp together with an access token for a block under construction This method is called only when a client needs to recover a failed pipeline or set up a pipeline for appending to a block. |
void updatePipeline(String, |
Update a pipeline for a block under construction |
Changed Methods | ||
void abandonBlock(Block, |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ). |
The client can give up on a block by calling abandonBlock(). |
LocatedBlock addBlock(String, |
Change in signature from (String, String ) to (String, String, Block, DatanodeInfo[] ).Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException, org.apache.hadoop.hdfs.protocol.DSQuotaExceededException ). |
A client that wants to write an additional block to the indicated filename (which must currently be open for writing) should call addBlock(). |
LocatedBlock append(String, |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ). |
Append to the end of the file. |
boolean complete(String, |
Change in signature from (String, String ) to (String, String, Block ).Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ). |
The client is done writing data to the given filename and would like to complete it. |
void create(String, |
Change in signature from (String, FsPermission, String, boolean, short, long ) to (String, FsPermission, String, EnumSetWritable, boolean, short, long ).Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException, org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException, org.apache.hadoop.hdfs.protocol.NSQuotaExceededException ). |
Create a new file entry in the namespace. |
void fsync(String, |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ). |
Write all metadata for this file into persistent storage. |
LocatedBlocks getBlockLocations(String, |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException, java.io.FileNotFoundException ). |
Get locations of the blocks of the specified file within the specified range. |
ContentSummary getContentSummary(String ) |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ). |
Get ContentSummary rooted at the specified directory. |
HdfsFileStatus getFileInfo(String ) |
Change in return type from FileStatus to HdfsFileStatus .Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ). |
Get the file info for a specific file or directory. |
DirectoryListing getListing(String, |
Change in return type from FileStatus[] to DirectoryListing .Change in signature from String to (String, byte[] ).Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ). |
Get a partial listing of the indicated directory |
long getPreferredBlockSize(String ) |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ). |
Get the block size for the given file. |
boolean mkdirs(String, |
Change in signature from (String, FsPermission ) to (String, FsPermission, boolean ).Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException, org.apache.hadoop.hdfs.protocol.NSQuotaExceededException ). |
Create a directory (or hierarchy of directories) with the given name and permission. |
void renewLease(String ) |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ). |
Client programs can cause stateful changes in the NameNode that affect other clients. |
void setOwner(String, |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ). |
Set Owner of a path (i.e. |
void setPermission(String, |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException, org.apache.hadoop.hdfs.server.namenode.SafeModeException ). |
Set permissions for an existing file/directory. |
void setQuota(String, |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException, java.io.FileNotFoundException, org.apache.hadoop.hdfs.server.namenode.SafeModeException ). |
Set the quota for a directory. |
boolean setReplication(String, |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ). |
Set replication for an existing file. |
void setTimes(String, |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ). |
Sets the modification and access time of the file to the specified time. |
boolean delete(String ) |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ).Now deprecated. |
use {@link #delete(String, boolean)} istead. |
boolean delete(String, |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ). |
Delete the given file or directory from the file system. |
boolean rename(String, |
Change in exceptions thrown from java.io.IOException to (java.io.IOException, org.apache.hadoop.fs.UnresolvedLinkException ).Now deprecated. |
Use {@link #rename(String, String, Options.Rename...)} instead. |
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