hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-4213) When the client calls hsync(), allows the client to update the file length in the NameNode
Date Wed, 21 Nov 2012 02:26:58 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo (Nicholas), SZE updated HDFS-4213:
-----------------------------------------

    Status: Patch Available  (was: Open)
    
> When the client calls hsync(), allows the client to update the file length in the NameNode
> ------------------------------------------------------------------------------------------
>
>                 Key: HDFS-4213
>                 URL: https://issues.apache.org/jira/browse/HDFS-4213
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>    Affects Versions: 3.0.0
>            Reporter: Jing Zhao
>            Assignee: Jing Zhao
>         Attachments: HDFS-4213.001.patch
>
>
> As per discussion in HDFS-3960 and HDFS-2802, when clients that need strong consistency
update the file length at the NameNode, a special sync is required for getting the length
of the being written files when snapshots are taken for these files. This jira implements
this sync-with-updating-length by 1) calling ClientProtocol#fsync(), and 2) adding a new field
to ClientProtocol#fsync() to indicate the length information.

--
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