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https://issues.apache.org/jira/browse/HDFS-309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sho Shimauchi updated HDFS-309:
-------------------------------

    Attachment: HDFS-309.txt

Thanks for feedback!
I updated the patch.

The output is now like this:

{quote}
2012-02-29 02:05:20,619 INFO  namenode.FSEditLogLoader 
(FSEditLogLoader.java:loadEditRecords(118)) - Acquiring write lock to replay 
edit log
2012-02-29 02:05:20,625 DEBUG namenode.FSEditLogLoader 
(FSEditLogLoader.java:loadEditRecords(127)) - edit log length: 1232, first 
txid: 1, last txid: 23
2012-02-29 02:05:20,637 INFO  namenode.FSEditLogLoader 
(FSEditLogLoader.java:loadEditRecords(421)) - replaying edit log: 12/23 
transactions completed. (52%)
{quote}

This replay progress message is printed once every second.
                
> FSEditLog should log progress during replay
> -------------------------------------------
>
>                 Key: HDFS-309
>                 URL: https://issues.apache.org/jira/browse/HDFS-309
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Todd Lipcon
>            Assignee: Sho Shimauchi
>              Labels: newbie
>         Attachments: HDFS-309.txt, HDFS-309.txt
>
>
> When the NameNode is replaying a long edit log, it's handy to have reports on 
> how far through it is, so you can judge how much time it is remaining.

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