[jira] [Created] (HDFS-10460) Erasure Coding: Recompute block checksum for a particular range less than file size on the fly by reconstructing missed block

["Rakesh R (JIRA)" <ji...@apache.org>]

Rakesh R created HDFS-10460:
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             Summary: Erasure Coding: Recompute block checksum for a particular range less than file size on the fly by reconstructing missed block
                 Key: HDFS-10460
                 URL: https://issues.apache.org/jira/browse/HDFS-10460
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: datanode
            Reporter: Rakesh R
            Assignee: Rakesh R


This jira is HDFS-9833 follow-on task to address reconstructing block and then recalculating block checksum for a particular range query.

For example,
{code}
// create a file 'stripedFile1' with fileSize = cellSize * numDataBlocks = 65536 * 6 = 393216
FileChecksum stripedFileChecksum = getFileChecksum(stripedFile1, 10, true);
{code}



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