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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-5589) Namenode loops caching and uncaching when data should be uncached
Date Mon, 02 Dec 2013 19:30:36 GMT
Andrew Wang created HDFS-5589:
---------------------------------

             Summary: 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
            Assignee: Colin Patrick McCabe


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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