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https://issues.apache.org/jira/browse/IGNITE-28792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18102124#comment-18102124
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Ignite TC Bot commented on IGNITE-28792:
----------------------------------------

[release-note-manual-review]
Available public evidence indicates an internal serialization change and does 
not establish a user-facing release-note impact.

> Use MessageSerializer to transfer CacheGroupData & CacheData
> ------------------------------------------------------------
>
>                 Key: IGNITE-28792
>                 URL: https://issues.apache.org/jira/browse/IGNITE-28792
>             Project: Ignite
>          Issue Type: Task
>            Reporter: Ilya Shishkov
>            Assignee: Dmitry Werner
>            Priority: Minor
>              Labels: IEP-132, ise, wire-format
>             Fix For: 2.19
>
>          Time Spent: 1.5h
>  Remaining Estimate: 0h
>
> Following DTO implements {{Serializable}}:
> # {{CacheGroupData}}
> # {{CacheData}}
> They are transferred in {{DiscoveryDataBag}} ({{DiscoveryDataPacket}}) and 
> should be transfromed to a {{Message}}. 
> Some important tips:
> # Implementation of {{Serializable}} should be removed if possible. (If not 
> stored somewhere in MetaStorage, or in PDS).
> # If it is difficult to transform to {{Message}}, message-clone DTO can be 
> added, eg. {{QueryIndexMessage}}.
> # Keep in mind {{#writeObject}} / {{#readObject}} and {{#readExternal}} / 
> {{#writeExternal}} methods, if any.



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