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https://issues.apache.org/jira/browse/HDFS-6066?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer updated HDFS-6066:
-----------------------------------
    Labels: BB2015-05-TBR  (was: )

> logGenerationStamp is not needed to reduce editlog size
> -------------------------------------------------------
>
>                 Key: HDFS-6066
>                 URL: https://issues.apache.org/jira/browse/HDFS-6066
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>            Reporter: chenping
>            Priority: Minor
>              Labels: BB2015-05-TBR
>         Attachments: HDFS-6066-trunk.1.patch, HDFS-6066-trunk.2.patch, 
> HDFS-6066-trunk.3.patch
>
>
> almost every logGenerationStamp has a logAddBlock followed, so we can get the 
> newest gs from the logAddBlock operation indirectly.this will reduce the edit 
> log size.



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