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java.lang.Objectorg.apache.hadoop.hdfs.server.common.StorageInfo
org.apache.hadoop.hdfs.server.common.Storage
org.apache.hadoop.hdfs.server.namenode.FSImage
org.apache.hadoop.hdfs.server.namenode.BackupStorage
@InterfaceAudience.Private public class BackupStorage
Nested Class Summary |
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Nested classes/interfaces inherited from class org.apache.hadoop.hdfs.server.common.Storage |
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Storage.StorageDirectory, Storage.StorageDirType, Storage.StorageState |
Field Summary |
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Fields inherited from class org.apache.hadoop.hdfs.server.namenode.FSImage |
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checkpointTime, ckptState, editLog, namesystem, removedStorageDirs |
Fields inherited from class org.apache.hadoop.hdfs.server.common.Storage |
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LAST_PRE_UPGRADE_LAYOUT_VERSION, LAST_UPGRADABLE_HADOOP_VERSION, LAST_UPGRADABLE_LAYOUT_VERSION, LOG, PRE_GENERATIONSTAMP_LAYOUT_VERSION, PRE_RBW_LAYOUT_VERSION, STORAGE_DIR_CURRENT, STORAGE_FILE_VERSION, storageDirs |
Fields inherited from class org.apache.hadoop.hdfs.server.common.StorageInfo |
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cTime, layoutVersion, namespaceID |
Method Summary | |
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boolean |
isConversionNeeded(Storage.StorageDirectory sd)
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Methods inherited from class org.apache.hadoop.hdfs.server.namenode.FSImage |
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corruptPreUpgradeStorage, format, getEditLog, getFields, getFsEditName, getFSNamesystem, getRestoreFailedStorage, moveCurrent, moveLastCheckpoint, readBytes, readString, saveCurrent, setFields, setRestoreFailedStorage |
Methods inherited from class org.apache.hadoop.hdfs.server.common.Storage |
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addStorageDir, checkVersionUpgradable, deleteDir, dirIterator, dirIterator, getBuildVersion, getNumStorageDirs, getRegistrationID, getStorageDir, isLockSupported, listStorageDirectories, rename, unlockAll, writeAll, writeCorruptedData |
Methods inherited from class org.apache.hadoop.hdfs.server.common.StorageInfo |
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getCTime, getLayoutVersion, getNamespaceID, readFields, setStorageInfo, write |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
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public boolean isConversionNeeded(Storage.StorageDirectory sd)
isConversionNeeded
in class FSImage
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