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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7932) Speed up the shutdown of datanode during rolling upgrade
Date Mon, 16 Mar 2015 20:23:40 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7932?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kihwal Lee updated HDFS-7932:
-----------------------------
    Attachment: HDFS-7932.patch

Making it wait shorter for the dataXfer thread group to exit. (From 2.5 seconds to 1 second)

> Speed up the shutdown of datanode during rolling upgrade
> --------------------------------------------------------
>
>                 Key: HDFS-7932
>                 URL: https://issues.apache.org/jira/browse/HDFS-7932
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>         Attachments: HDFS-7932.patch, HDFS-7932.patch
>
>
> Datanode normally exits in 3 seconds after receiving {{shutdownDatanode}} command. However,
sometimes it doesn't, especially when the IO is busy. 



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