[jira] [Comment Edited] (IGNITE-15998) Add separate configuration for system data region

["Eduard Rakhmankulov (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-15998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17452527#comment-17452527 ] 

Eduard Rakhmankulov edited comment on IGNITE-15998 at 12/30/21, 2:04 PM:
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[~Smolnikov] Please take a look.


was (Author: erixon):
[~Smolnikov] please take a look.

> Add separate configuration for system data region
> -------------------------------------------------
>
>                 Key: IGNITE-15998
>                 URL: https://issues.apache.org/jira/browse/IGNITE-15998
>             Project: Ignite
>          Issue Type: Improvement
>          Components: cache
>            Reporter: Eduard Rakhmankulov
>            Assignee: Eduard Rakhmankulov
>            Priority: Major
>             Fix For: 2.13
>
>          Time Spent: 3h
>  Remaining Estimate: 0h
>
> *AS IS*
> Currently, Ignite users can control only two *system region* parameters: *initialSize* and *maxSize.* These properties are managed by DataStorageConfiguration, but same time default and user-specified regions have *org.apache.ignite.configuration.DataRegionConfiguration* for configuring them. It is not wise to use the same class for the {*}system region{*}, because there are some restrictions the codebase is relying on, but keeping to `drill new holes` in *DataStorageConfiguration* for the *system region* is not good either.
>  
> *TO BE*
> Implement configuration class for systemDataRegion similar to {*}org.apache.ignite.configuration.DataRegionConfiguration{*}, but with more restricted options, ready to be added more on-demand.
> Move systemRegionProperties from *org.apache.ignite.configuration.DataStorageConfiguration* to own class.
>  
> API changes:
>  # Declare deprecated:
>  ** org.apache.ignite.configuration.DataStorageConfiguration#setSystemRegionInitialSize
>  ** org.apache.ignite.configuration.DataStorageConfiguration#getSystemRegionInitialSize
>  ** org.apache.ignite.configuration.DataStorageConfiguration#setSystemRegionMaxSize
>  ** org.apache.ignite.configuration.DataStorageConfiguration#getSystemRegionMaxSize
>  # Add new methods:
>  ** org.apache.ignite.configuration.DataStorageConfiguration#setSystemDataRegionConfiguration(SystemDataRegionConfiguration)
>  ** org.apache.ignite.configuration.DataStorageConfiguration#getSystemDataRegionConfiguration
>  # Add new configuration class org.apache.ignite.configuration.SystemDataRegionConfiguration



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