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From "Dmitry Lysnichenko (JIRA)" <>
Subject [jira] [Updated] (AMBARI-16272) Ambari Upgrade shouldn't automatically add stack configs
Date Thu, 05 May 2016 14:36:12 GMT


Dmitry Lysnichenko updated AMBARI-16272:
    Fix Version/s: 2.4.0

> Ambari Upgrade shouldn't automatically add stack configs
> --------------------------------------------------------
>                 Key: AMBARI-16272
>                 URL:
>             Project: Ambari
>          Issue Type: Task
>          Components: ambari-server
>    Affects Versions: 2.4.0
>            Reporter: Dmitry Lysnichenko
>            Assignee: Dmitry Lysnichenko
>             Fix For: 2.4.0
>         Attachments: AMBARI-16272.patch
> Today, Ambari Upgrade will automatically add stack configs.
> However, it also causes problems when default properties or properties with default value
such as "localhost" end up being added.
> This led to many bugs. E.g., cluster with NameNode HA shouldn't automatically add dfs.namenode.secondary.http-address
> Properties should be explicitly added during RU/EU config packs instead of relying on
annotating them with.
> {code}
> <property-type>DONT_ADD_ON_UPGRADE</property-type>
> {code}
> This logic today will even add new config types. E.g., add ranger-env even though Ranger
is not installed. If the customer then upgrades the stack from HDP 2.2 to 2.3, and then adds
Ranger, they can get the wrong configs.
> If we change this behavior, it's good to do so in a major release such as 2.4
> We add required xml tags to properties:
> # If it's a new property from stack X to X+1, we don't want it to be added automatically
added. If we do want to add it, we should annotate it with "ADD_ON_UPGRADE"
> # Similar to above, but handle "DELETE_ON_UPGRADE"
> # Similar to above, but handle "CHANGE_ON_UPGRADE" to forcefully set to a new value if
it exists

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