public static class StripedBlockUtil.StripingCell extends Object
DFSStripedOutputStream
. This
size impacts how a logical offset in the file or block group translates
to physical byte offset in a stored internal block. The StripingCell util
class facilitates this calculation. Each StripingCell is inclusive with
its start and end offsets -- e.g., the end logical offset of cell_0_0_0
should be 1 byte lower than the start logical offset of cell_1_0_1.
A StripingCell is a special instance of StripedBlockUtil.StripingChunk
whose offset
and size align with the cell used when writing data.
TODO: consider parity cellsCopyright © 2008–2021 Apache Software Foundation. All rights reserved.