[jira] [Commented] (HDFS-5589) Namenode loops caching and uncaching when data should be uncached

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-5589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13861213#comment-13861213 ] 

Hadoop QA commented on HDFS-5589:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12621222/hdfs-5589-1.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-hdfs-project/hadoop-hdfs.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/5816//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/5816//console

This message is automatically generated.

> 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: Andrew Wang
>         Attachments: hdfs-5589-1.patch
>
>
> 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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