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From Alejandro Fernandez <>
Subject Hadoop 3.0 - changes to services
Date Mon, 27 Feb 2017 18:40:06 GMT
Hi all,

Hadoop 3.0 is starting to come online so please be mindful that any changes you make to the
existing services (definitions, configs, python files, etc) may also need to be included in
Hadoop 3.0.
HDP 3.0 is not inheriting from previous stacks in order to reduce the complexity of inheriting
all the way from HDP 2.0.6; for this reason, I've created new versions in common-services
for HDFS (, YARN (, and ZK (3.4.9). Over time, the rest of the services
will each have their own version there as well.

This flattening means that any changes you make to

config xml files
python files

will also have to be included in the newer version of the service for Hadoop 3.0. Please keep
an eye out for this, especially during code reviews.

Thank you,
Alejandro Fernandez

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