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From Robert Levas <rle...@hortonworks.com>
Subject Re: Hadoop 3.0 - changes to services
Date Mon, 27 Feb 2017 18:46:28 GMT
Thanks Alejandro.  

I was not aware (or more likely probably forgot) that HDP 3.0.0 did not inherit from the other
stacks.    I have a few corrections to make on the patch I am working on.


Rob



On 2/27/17, 1:40 PM, "Alejandro Fernandez" <afernandez@hortonworks.com> wrote:

    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 (3.0.0.3.0), YARN (3.0.0.3.0), 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
    
    metainfo.xml
    kerberos.json
    widgets.json
    config xml files
    python files
    etc
    
    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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