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From "Kanaka Kumar Avvaru (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6955) DN should reserve disk space for a full block when creating tmp files
Date Sun, 06 Sep 2015 19:31:46 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6955?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14732518#comment-14732518
] 

Kanaka Kumar Avvaru commented on HDFS-6955:
-------------------------------------------

Thanks for the review [~vinayrpet]

1. Reserved space is not released unless we call {{cleanupBlock()}}. Yes its good point to
verify double release . I have updated the test case to assert this case. Please correct me
if still you feel some other call is clearing space.
2. Thanks for pointing the name correction. I have renamed in latest version of patch (v5)

> 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-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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