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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3960) Snapshot of Being Written Files
Date Tue, 30 Oct 2012 18:18:12 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13487085#comment-13487085
] 

Konstantin Shvachko commented on HDFS-3960:
-------------------------------------------

More strongly I consider it a bug that we do not update metadata in NN when we hflush, regardless
of snapshots. This probably addresses prior discussions about visible length in other jiras.
                
> Snapshot of Being Written Files
> -------------------------------
>
>                 Key: HDFS-3960
>                 URL: https://issues.apache.org/jira/browse/HDFS-3960
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>
> Here is a design question: Suppose there is a being written file when a snapshot is being
taken.  What should the length of the file be shown in the snapshot?  In other words, how
to determine the length of being written file when a snapshot is being taken?

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