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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4875) Add a test for testing snapshot file length
Date Fri, 14 Jun 2013 18:54:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13683659#comment-13683659

Jing Zhao commented on HDFS-4875:

Thanks for adding the test, Arpit! The patch looks good to me. Only one minor nit: the RANDOM
field can be removed because it has not been used.
> Add a test for testing snapshot file length
> -------------------------------------------
>                 Key: HDFS-4875
>                 URL: https://issues.apache.org/jira/browse/HDFS-4875
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: snapshots, test
>    Affects Versions: 3.0.0, 2.1.0-beta
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Arpit Agarwal
>            Priority: Minor
>         Attachments: HDFS-4875.001.patch
> Here is a test idea from Suresh:
> - A file was length x at the time of snapshot (say s1) creation
> - Later y bytes get added to the file through append
> When client gets block locations for the file from snapshot s1, the length it know is
x. We should make sure it cannot read beyond length x.

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