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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5589) Namenode loops caching and uncaching when data should be uncached
Date Mon, 02 Dec 2013 19:34:36 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Wang updated HDFS-5589:
------------------------------

    Assignee:     (was: Colin Patrick McCabe)

> Namenode loops caching and uncaching when data should be uncached
> -----------------------------------------------------------------
>
>                 Key: HDFS-5589
>                 URL: https://issues.apache.org/jira/browse/HDFS-5589
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: caching, namenode
>    Affects Versions: 3.0.0
>            Reporter: Andrew Wang
>
> This was reported by [~cnauroth] and [~brandonli], and [~schu] repro'd it too.
> If you add a new caching directive then remove it, the Namenode will sometimes get stuck
in a loop where it sends DNA_CACHE and then DNA_UNCACHE repeatedly to the datanodes where
the data was previously cached.



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