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https://issues.apache.org/jira/browse/HDFS-8593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14585084#comment-14585084
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Hudson commented on HDFS-8593:
------------------------------
SUCCESS: Integrated in Hadoop-Hdfs-trunk #2156 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/2156/])
HDFS-8593. Calculation of effective layout version mishandles comparison to
current layout version in storage. Contributed by Chris Nauroth. (cnauroth: rev
b8341f1cd89791c51b396ad531ec7fcc631be149)
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSNamesystem.java
> Calculation of effective layout version mishandles comparison to current
> layout version in storage.
> ---------------------------------------------------------------------------------------------------
>
> Key: HDFS-8593
> URL: https://issues.apache.org/jira/browse/HDFS-8593
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Reporter: Chris Nauroth
> Assignee: Chris Nauroth
> Fix For: 2.8.0
>
> Attachments: HDFS-8593.001.patch
>
>
> HDFS-8432 introduced the concept of a minimum compatible layout version so
> that downgrade is applicable in a wider set of circumstances. This includes
> logic for determining if the current layout version in storage is within the
> bounds of the minimum compatible layout version. There is an inverted
> comparison in this logic, which can result in an incorrect calculation.
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