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https://issues.apache.org/jira/browse/HDFS-3978?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arpit Gupta updated HDFS-3978:
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Summary: Document backward incompatible changes between hadoop-1.x and 2.x
(was: Document backward incompatible changes introduced by HADOOP-8551)
> Document backward incompatible changes between hadoop-1.x and 2.x
> -----------------------------------------------------------------
>
> Key: HDFS-3978
> URL: https://issues.apache.org/jira/browse/HDFS-3978
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.0.0, 2.0.2-alpha
> Reporter: Arpit Gupta
>
> The following incompatible changes were noticed between branch-1 and branch-2
> caused by HADOOP-8551
> 1. mkdir would create parent directories in branch-1 if they did not exist.
> In branch-2 users have to explicitly send mkdir -p
> 2. Create a multi level dir in branch 1 something like
> mkdir /test/1
> /test would get permissions 755 and /test/1 would get the permissions based
> on your umask settings
> however if you run the command in branch-2
> mkdir -p /test/1
> both /test and /test/1 will get the permissions based on your umask.
> These are significant changes that we should document.
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