Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Reply-To: hdfs-issues@hadoop.apache.org
Date: Tue, 17 Jul 2012 00:01:36 +0000 (UTC)
From: "Sanjay Radia (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <1008659777.61535.1342483296383.JavaMail.jiratomcat@issues-vm>
Subject: [jira] [Commented] (HDFS-1108) Log newly allocated blocks
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


    [ https://issues.apache.org/jira/browse/HDFS-1108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13415801#comment-13415801 ] 

Sanjay Radia commented on HDFS-1108:
------------------------------------

Committed to branch 1
                
> Log newly allocated blocks
> --------------------------
>
>                 Key: HDFS-1108
>                 URL: https://issues.apache.org/jira/browse/HDFS-1108
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha, name-node
>            Reporter: dhruba borthakur
>            Assignee: Todd Lipcon
>             Fix For: HA branch (HDFS-1623), 1.1.0
>
>         Attachments: HDFS-1108.patch, hdfs-1108-habranch.txt, hdfs-1108-habranch.txt, hdfs-1108-habranch.txt, hdfs-1108-habranch.txt, hdfs-1108-habranch.txt, hdfs-1108-hadoop-1-v2.patch, hdfs-1108-hadoop-1-v3.patch, hdfs-1108-hadoop-1-v4.patch, hdfs-1108-hadoop-1-v5.patch, hdfs-1108-hadoop-1.patch, hdfs-1108.txt
>
>
> The current HDFS design says that newly allocated blocks for a file are not persisted in the NN transaction log when the block is allocated. Instead, a hflush() or a close() on the file persists the blocks into the transaction log. It would be nice if we can immediately persist newly allocated blocks (as soon as they are allocated) for specific files.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira