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Interface org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol

Added Methods
void endCheckpoint(NamenodeRegistration, CheckpointSignature) A request to the active name-node to finalize previously started checkpoint.
void errorReport(NamenodeRegistration, int, String) Report to the active name-node an error occurred on a subordinate node.
ExportedAccessKeys getAccessKeys() Get the current access keys
void journal(NamenodeRegistration, int, int, byte[]) Journal edit records.
long journalSize(NamenodeRegistration) Get the size of the active name-node journal (edit log) in bytes.
NamenodeRegistration register(NamenodeRegistration) Register a subordinate name-node like backup node.
NamenodeCommand startCheckpoint(NamenodeRegistration) A request to the active name-node to start a checkpoint.
NamespaceInfo versionRequest() Request name-node version and storage information.
 

Changed Methods
long getEditLogSize() Now deprecated.
See {@link org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode}
CheckpointSignature rollEditLog() Now deprecated.
See {@link org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode}
void rollFsImage() Now deprecated.
See {@link org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode}
 

Added Fields
int ACT_CHECKPOINT  
int ACT_SHUTDOWN  
int ACT_UNKNOWN  
int FATAL  
byte JA_CHECKPOINT_TIME  
byte JA_IS_ALIVE  
byte JA_JOURNAL  
byte JA_JSPOOL_START  
int NOTIFY