接口 org.apache.hadoop.io.ReadaheadPool.ReadaheadRequest
的使用

使用ReadaheadPool.ReadaheadRequest的程序包

程序包	说明
org.apache.hadoop.io	Generic i/o code for use when reading and writing data to the network, to databases, and to files.

org.apache.hadoop.io中ReadaheadPool.ReadaheadRequest的使用

返回ReadaheadPool.ReadaheadRequest的org.apache.hadoop.io中的方法

限定符和类型	方法和说明
ReadaheadPool.ReadaheadRequest	ReadaheadPool.readaheadStream(String identifier, FileDescriptor fd, long curPos, long readaheadLength, long maxOffsetToRead, ReadaheadPool.ReadaheadRequest lastReadahead) Issue a request to readahead on the given file descriptor.
ReadaheadPool.ReadaheadRequest	ReadaheadPool.submitReadahead(String identifier, FileDescriptor fd, long off, long len) Submit a request to readahead on the given file descriptor.

参数类型为ReadaheadPool.ReadaheadRequest的org.apache.hadoop.io中的方法

限定符和类型	方法和说明
ReadaheadPool.ReadaheadRequest	ReadaheadPool.readaheadStream(String identifier, FileDescriptor fd, long curPos, long readaheadLength, long maxOffsetToRead, ReadaheadPool.ReadaheadRequest lastReadahead) Issue a request to readahead on the given file descriptor.