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Posted to hdfs-issues@hadoop.apache.org by "Jiayi Zhou (JIRA)" <ji...@apache.org> on 2016/07/12 22:19:20 UTC

[jira] [Comment Edited] (HDFS-10519) Add a configuration option to enable in-progress edit log tailing

    [ https://issues.apache.org/jira/browse/HDFS-10519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15373773#comment-15373773 ] 

Jiayi Zhou edited comment on HDFS-10519 at 7/12/16 10:19 PM:
-------------------------------------------------------------

Add a unit test which I forgot to add in the 003 patch.


was (Author: clouderajiayi):
Add a unit test which I forgot to add in the previous patch.

> Add a configuration option to enable in-progress edit log tailing
> -----------------------------------------------------------------
>
>                 Key: HDFS-10519
>                 URL: https://issues.apache.org/jira/browse/HDFS-10519
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: ha
>            Reporter: Jiayi Zhou
>            Assignee: Jiayi Zhou
>            Priority: Minor
>         Attachments: HDFS-10519.001.patch, HDFS-10519.002.patch, HDFS-10519.003.patch, HDFS-10519.004.patch
>
>
> Standby Namenode has the option to do in-progress edit log tailing to improve the data freshness. In-progress tailing is already implemented, but it's not enabled as default configuration. And there's no related configuration key to turn it on.
> Adding a related configuration key to let Standby Namenode is reasonable and would be a basis for further improvement on Standby Namenode.



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