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