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From Jonathan Hurley <>
Subject Re: Stack Advisor during Rolling upgrade
Date Fri, 12 Oct 2018 15:14:26 GMT
Stack upgrades do not invoke the service advisor. If you need to set configurations, you either
need to do so in the config-upgrade.xml for the stack, or provide a custom class which extends
AbstractUpgradeServerAction and specify that class as part of the upgrade.xml. 

´╗┐On 10/12/18, 8:23 AM, "Sandeep G" <> wrote:

    I have two stack advisors defined in the services directory of two versions
    ( say HDP - 2.5 and HDP - 2.6). I recommend dynamic configurations of
    different services like HBASE in the stack advisor script using the method
    recommendHbaseConfiguration() method. I see that the stack advisor is
    getting called in the fresh cluster install ( with say 2.5 version) and all
    the recommended configurations in 2.5 stack advisor are getting set
    However if I recommend a different value for some key in 2.6 -> stack
    advisor, I see that it is not getting updated during the Rolling Upgrade
    from 2.5 to 2.6. Why is the stack advisor not getting called during the
    rolling upgrade ? How do I update a configuration value of a service during
    a Rolling Upgrade ?

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