[
https://issues.apache.org/jira/browse/HDFS-8376?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Yi Liu resolved HDFS-8376.
--------------------------
Resolution: Invalid
> Erasure Coding: Update last cellsize calculation according to whether the
> erasure codec has chunk boundary
> ----------------------------------------------------------------------------------------------------------
>
> Key: HDFS-8376
> URL: https://issues.apache.org/jira/browse/HDFS-8376
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Yi Liu
> Assignee: Yi Liu
>
> Current calculation for last cell size is as following. For parity cell, the
> last cell size is the same as the first data cell. But some erasure codec
> has chunk boundary, then the last cellsize for parity block is the codec
> chunk size.
> {code}
> private static int lastCellSize(int size, int cellSize, int numDataBlocks,
> int i) {
> if (i < numDataBlocks) {
> // parity block size (i.e. i >= numDataBlocks) is the same as
> // the first data block size (i.e. i = 0).
> size -= i*cellSize;
> if (size < 0) {
> size = 0;
> }
> }
> return size > cellSize? cellSize: size;
> }
> {code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
