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https://issues.apache.org/jira/browse/HADOOP-10111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13827892#comment-13827892
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Jonathan Eagles commented on HADOOP-10111:
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Looks promising for reducing datanode startup time, Kihwal.
Couple of minor things.
- Be consistent with the long literal _this(path, interval, -1)_ vs
_this(path, interval, -1L)_
- Currently the tests don't test the new functionality of the initial value.
Is this a better fit here or in HDFS-5498?
> Allow DU to be initialized with an initial value
> ------------------------------------------------
>
> Key: HADOOP-10111
> URL: https://issues.apache.org/jira/browse/HADOOP-10111
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
> Attachments: HADOOP-10111.patch
>
>
> When a DU object is created, the du command runs right away. If the target
> directory contains a huge number of files and directories, its constructor
> may not return for many seconds. It will be nice if it can be told to delay
> the initial scan and use a specified initial "used" value.
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