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https://issues.apache.org/jira/browse/HDFS-8453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14558671#comment-14558671
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Zhe Zhang commented on HDFS-8453:
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Moving initial description as a comment to avoid confusion:
{quote}
{{LocatedBlock#offset}} should indicate the "offset of the first byte of the
block in the file". In a striped block group, we should properly assign this
{{offset}} for internal blocks, so each internal block can be identified from a
given offset.
My current plan is to keep using {{bg.getStartOffset() + idxInBlockGroup *
cellSize}} as the start offset for data blocks. For parity blocks, use {{-1 *
(bg.getStartOffset() + idxInBlockGroup * cellSize)}}.
{quote}
> Erasure coding: properly assign start offset for internal blocks in a block
> group
> ---------------------------------------------------------------------------------
>
> Key: HDFS-8453
> URL: https://issues.apache.org/jira/browse/HDFS-8453
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Zhe Zhang
> Assignee: Zhe Zhang
> Attachments: HDFS-8453-HDFS-7285.00.patch
>
>
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