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HDFS-16204. Improve FSDirEncryptionZoneOp related parameter comments. (#3368)

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jianghuazhu 2021-09-06 18:06:12 +08:00 committed by GitHub
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1 changed files with 8 additions and 7 deletions
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hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirEncryptionZoneOp.java
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@ -75,7 +75,7 @@ private FSDirEncryptionZoneOp() {}
* Invoke KeyProvider APIs to generate an encrypted data encryption key for
* an encryption zone. Should not be called with any locks held.
*
* @param fsd fsdirectory
* @param fsd the namespace tree.
* @param ezKeyName key name of an encryption zone
* @return New EDEK, or null if ezKeyName is null
* @throws IOException
@ -142,11 +142,12 @@ static KeyProvider.Metadata ensureKeyIsInitialized(final FSDirectory fsd,
/**
* Create an encryption zone on directory path using the specified key.
*
* @param fsd fsdirectory
* @param fsd the namespace tree.
* @param srcArg the path of a directory which will be the root of the
* encryption zone. The directory must be empty
* @param pc permission checker to check fs permission
* @param cipher cipher
* @param cipher the name of the cipher suite, which will be used
* when it is generated.
* @param keyName name of a key which must be present in the configured
* KeyProvider
* @param logRetryCache whether to record RPC ids in editlog for retry cache
@ -180,7 +181,7 @@ static FileStatus createEncryptionZone(final FSDirectory fsd,
/**
* Get the encryption zone for the specified path.
*
* @param fsd fsdirectory
* @param fsd the namespace tree.
* @param srcArg the path of a file or directory to get the EZ for
* @param pc permission checker to check fs permission
* @return the EZ with file status.
@ -400,7 +401,7 @@ static void saveFileXAttrsForBatch(FSDirectory fsd,
/**
* Set the FileEncryptionInfo for an INode.
*
* @param fsd fsdirectory
* @param fsd the namespace tree.
* @param info file encryption information
* @param flag action when setting xattr. Either CREATE or REPLACE.
* @throws IOException
@ -430,7 +431,7 @@ static void setFileEncryptionInfo(final FSDirectory fsd,
* returns a consolidated FileEncryptionInfo instance. Null is returned
* for non-encrypted or raw files.
*
* @param fsd fsdirectory
* @param fsd the namespace tree.
* @param iip inodes in the path containing the file, passed in to
* avoid obtaining the list of inodes again
* @return consolidated file encryption info; null for non-encrypted files
@ -487,7 +488,7 @@ static FileEncryptionInfo getFileEncryptionInfo(final FSDirectory fsd,
* else throw a retry exception. The startFile method generates the EDEK
* outside of the lock so the zone must be reverified.
*
* @param dir fsdirectory
* @param dir the namespace tree.
* @param iip inodes in the file path
* @param ezInfo the encryption key
* @return FileEncryptionInfo for the file