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I have a Hadoop setup in which the configured HDFS umask is 027 instead of the default one. Some of the initially created directories have correct permissions (like tmp drwxrwxrwx) but others such as /home are not usable (drwxr-x---).

As I'm creating this Hadoop deployments automatically and over and over again, I'm wondering when and how those directories are created to fix the problem at the right point. I know I can change the permissions after the setup but that feels like cheating.

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