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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HDFS-9262) Reconfigure DN lazy writer interval on the fly
Date Sat, 05 Dec 2015 00:38:11 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15042485#comment-15042485
] 

Arpit Agarwal edited comment on HDFS-9262 at 12/5/15 12:38 AM:
---------------------------------------------------------------

Thanks for checking. Then let's go with the second option to have FsDatasetSpi extend Reconfigurable.

The {{(ReconfigurableBase)data)}} cross-cast uses the non-obvious assumption that FsDatasetImpl
extends ReconfigurableBase so it's better to replace it.


was (Author: arpitagarwal):
Thanks for checking. Then let's go with the second option to have FsDatasetSpi extend Reconfigurable.

The {{(ReconfigurableBase)data)}} cross-cast uses the non-obvious assumption that FsDatasetImpl
implements ReconfigurableBase so it's better to replace it.

> Reconfigure DN lazy writer interval on the fly
> ----------------------------------------------
>
>                 Key: HDFS-9262
>                 URL: https://issues.apache.org/jira/browse/HDFS-9262
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode
>    Affects Versions: 2.7.0
>            Reporter: Xiaobing Zhou
>            Assignee: Xiaobing Zhou
>         Attachments: HDFS-9262.001.patch
>
>
> This is to reconfigure
> {code}
> dfs.datanode.lazywriter.interval.sec
> {code}
> without restarting DN.



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