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From Jonathan Hurley <>
Subject Re: Ru/EU not updating alert definitions in Ambari server db?
Date Tue, 23 Feb 2016 18:23:31 GMT
No, they are not updated; however, stack inheritance should allow you to reference the files
from the new stack. We've performed many different upgrades both both inter-stack and intra-stack
and have never seen any issues with alert definitions. 

> On Feb 23, 2016, at 1:13 PM, Di Li <> wrote:
> Hello folks,
> Do RU and EU handle updating alert definitions stored in the Ambari server database?

> Based on what I tested, alert definitions, especially the paths to alert_***.py Python
scripts are not updated by neither RU and EU. meaning if I changed the path to the alert_***.py
scripts in a new release, the alert definitions are broken and certain components would show
with a UNKNOWN alert state after I run RU/EU.
> P.S
>     I know that, post upgrade, I can manually update the alert definitions via REST APIs.
> Thanks.

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