hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HDFS-4300) TransferFsImage.downloadEditsToStorage should use a tmp file for destination
Date Fri, 22 Mar 2013 17:57:16 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Wang reassigned HDFS-4300:
---------------------------------

    Assignee: Andrew Wang  (was: Todd Lipcon)
    
> TransferFsImage.downloadEditsToStorage should use a tmp file for destination
> ----------------------------------------------------------------------------
>
>                 Key: HDFS-4300
>                 URL: https://issues.apache.org/jira/browse/HDFS-4300
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.0.2-alpha
>            Reporter: Todd Lipcon
>            Assignee: Andrew Wang
>            Priority: Critical
>
> Currently, in TransferFsImage.downloadEditsToStorage, we download the edits file directly
to its finalized path. So, if the transfer fails in the middle, a half-written file is left
and cannot be distinguished from a correct file. So, future checkpoints by the 2NN will fail,
since the file is truncated in the middle -- but it won't ever download a good copy because
it thinks it already has the proper file.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message