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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6955) DN should reserve disk space for a full block when creating tmp files
Date Fri, 11 Sep 2015 18:01:46 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6955?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14741256#comment-14741256

Arpit Agarwal commented on HDFS-6955:

Thanks for updating the patch. A few comments.
# Nitpick: Please add spaces around operators {{replicaInfo!=null}}
# It doesn't look like there is a new test case for temporary reservation. We should have
test case for both full and interrupted transfer.
# {{FsVolumeImpl#recentReserved}} looks unused. Let's remove it.
# I didn't recall the state machine, do temporary blocks get finalized?

> DN should reserve disk space for a full block when creating tmp files
> ---------------------------------------------------------------------
>                 Key: HDFS-6955
>                 URL: https://issues.apache.org/jira/browse/HDFS-6955
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 2.5.0
>            Reporter: Arpit Agarwal
>            Assignee: Kanaka Kumar Avvaru
>         Attachments: HDFS-6955-01.patch, HDFS-6955-02.patch, HDFS-6955-03.patch, HDFS-6955-04.patch,
HDFS-6955-05.patch, HDFS-6955-06.patch, HDFS-6955-07.patch
> HDFS-6898 is introducing disk space reservation for RBW files to avoid running out of
disk space midway through block creation.
> This Jira is to introduce similar reservation for tmp files.

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