Uses of Class org.apache.hadoop.hdfs.server.datanode.BlockMetadataHeader (Apache Hadoop HDFS Client 3.5.0 API)
Description: use: package: org.apache.hadoop.hdfs.server.datanode, class: BlockMetadataHeader

# Uses of Class
org.apache.hadoop.hdfs.server.datanode.BlockMetadataHeader

Packages that use BlockMetadataHeader
Package
Description
org.apache.hadoop.hdfs.server.datanode
org.apache.hadoop.hdfs.shortcircuit

- ## Uses of BlockMetadataHeader in org.apache.hadoop.hdfs.server.datanode

  Methods in org.apache.hadoop.hdfs.server.datanode that return BlockMetadataHeader
  Modifier and Type
  Method
  Description
  `static BlockMetadataHeader`
  BlockMetadataHeader.`preadHeader(FileChannel fc)`
  Read the header without changing the position of the FileChannel.
  `static BlockMetadataHeader`
  BlockMetadataHeader.`readHeader(DataInputStream in)`
  This reads all the fields till the beginning of checksum.
  `static BlockMetadataHeader`
  BlockMetadataHeader.`readHeader(FileInputStream fis)`
  Reads header at the top of metadata file and returns the header.
  `static BlockMetadataHeader`
  BlockMetadataHeader.`readHeader(RandomAccessFile raf)`
  Read the header at the beginning of the given block meta file.
  Methods in org.apache.hadoop.hdfs.server.datanode with parameters of type BlockMetadataHeader
  Modifier and Type
  Method
  Description
  `static void`
  BlockMetadataHeader.`writeHeader(DataOutputStream out, BlockMetadataHeader header)`
  This writes all the fields till the beginning of checksum.

- ## Uses of BlockMetadataHeader in org.apache.hadoop.hdfs.shortcircuit

  Methods in org.apache.hadoop.hdfs.shortcircuit that return BlockMetadataHeader
  Modifier and Type
  Method
  Description
  `BlockMetadataHeader`
  ShortCircuitReplica.`getMetaHeader()`