Uses of Class
org.apache.hadoop.hdfs.server.namenode.NNStorage

Packages that use NNStorage

Package	Description
org.apache.hadoop.hdfs.server.namenode
org.apache.hadoop.hdfs.server.protocol

Uses of NNStorage in org.apache.hadoop.hdfs.server.namenode

Fields in org.apache.hadoop.hdfs.server.namenode declared as NNStorage

Modifier and Type	Field	Description
protected NNStorage	FSImage.storage

Methods in org.apache.hadoop.hdfs.server.namenode that return NNStorage

Modifier and Type	Method	Description
NNStorage	FSImage.getStorage()

Methods in org.apache.hadoop.hdfs.server.namenode with parameters of type NNStorage

Modifier and Type	Method	Description
static void	FSImage.checkUpgrade(NNStorage storage)	Check if upgrade is in progress.
static boolean	FSImage.recoverStorageDirs(HdfsServerConstants.StartupOption startOpt, NNStorage storage, Map<Storage.StorageDirectory,Storage.StorageState> dataDirStates)	For each storage directory, performs recovery of incomplete transitions (eg. upgrade, rollback, checkpoint) and inserts the directory's storage state into the dataDirStates map.
static TransferFsImage.TransferResult	TransferFsImage.uploadImageFromStorage(URL fsName, org.apache.hadoop.conf.Configuration conf, NNStorage storage, NNStorage.NameNodeFile nnf, long txid, Canceler canceler)	Requests that the NameNode download an image from this node.

Constructors in org.apache.hadoop.hdfs.server.namenode with parameters of type NNStorage

Modifier	Constructor	Description
	NNStorageRetentionManager(org.apache.hadoop.conf.Configuration conf, NNStorage storage, org.apache.hadoop.hdfs.server.namenode.LogsPurgeable purgeableLogs)
	NNStorageRetentionManager(org.apache.hadoop.conf.Configuration conf, NNStorage storage, org.apache.hadoop.hdfs.server.namenode.LogsPurgeable purgeableLogs, org.apache.hadoop.hdfs.server.namenode.NNStorageRetentionManager.StoragePurger purger)

Uses of NNStorage in org.apache.hadoop.hdfs.server.protocol

Methods in org.apache.hadoop.hdfs.server.protocol with parameters of type NNStorage

Modifier and Type	Method	Description
void	NamespaceInfo.validateStorage(NNStorage storage)