[jira] [Commented] (IGNITE-19687) Support default distribution zone reassignment.

["Andrey Mashenkov (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-19687?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17730515#comment-17730515 ] 

Andrey Mashenkov commented on IGNITE-19687:
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{quote}* Add support ALTER ZONE <zone_name> SET DEFAULT to reassign default zone.
* Allow renaming for all zones.{quote}
Most likely, this may be fixed as a separate task.

> Support default distribution zone reassignment.
> -----------------------------------------------
>
>                 Key: IGNITE-19687
>                 URL: https://issues.apache.org/jira/browse/IGNITE-19687
>             Project: Ignite
>          Issue Type: Improvement
>            Reporter: Andrey Mashenkov
>            Priority: Major
>              Labels: ignite-3
>
> *Motivation.*
> We have no reasonable arguments that we need a special distribution zone instance. All distribution zones are equals. Thus, conceptually, any zone can be used as default one and can be renamed.
> For better UX, we still can require at least one distribution zone, which is currently assigned as default zone, must always exists.
> Let's 
> * Avoid using any hardcoded zone id or zone name for getting or detecting the default distribution zone.
> * Distributed zone manager shouldn't care which zone is default. Catalog will be responsible for resolving default zone if it is not specified when table is creating.
> * Add a property in Configuration that will to default zone by zone id.
> * A distribution zone with name "Default"(?) and some default parameters must be created on cluster initialization phase and an id, which was assigned to such zone, must be stored to  Configuration.
> * Forbid dropping of distribution zone, which is currently marked as default.
> * Add support {{ALTER ZONE <zone_name> SET DEFAULT}} to reassign default zone.
> * Allow renaming for all zones.



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