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https://issues.apache.org/jira/browse/HDFS-8065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15381607#comment-15381607
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Kai Zheng commented on HDFS-8065:
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Thanks [~rakeshr] for working on this. My concern is, without the clear design
being sorted out first for arbitrary truncation (HDFS-7622), opening the codes
to allow truncate at striped group boundary may be not a good idea, since the
feature would be hard to document and use. It would be hardly tell a good use
case, and why users would do truncate on block group size boundary? If other
size is used to truncate, exception will be thrown. Users will be confused.
I do think we need to document in the release note saying that truncate isn't
supported yet for striping files.
> Erasure coding: Support truncate at striped group boundary
> ----------------------------------------------------------
>
> Key: HDFS-8065
> URL: https://issues.apache.org/jira/browse/HDFS-8065
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Reporter: Yi Liu
> Assignee: Rakesh R
> Attachments: HDFS-8065-00.patch, HDFS-8065-01.patch
>
>
> We can support truncate at striped group boundary firstly.
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