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https://issues.apache.org/jira/browse/IGNITE-23879?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mirza Aliev reassigned IGNITE-23879:
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Assignee: Kirill Sizov
> Provide a way to indicate stable switch after the second phase of
> resetPartitions
> ---------------------------------------------------------------------------------
>
> Key: IGNITE-23879
> URL: https://issues.apache.org/jira/browse/IGNITE-23879
> Project: Ignite
> Issue Type: Improvement
> Reporter: Mirza Aliev
> Assignee: Kirill Sizov
> Priority: Major
> Labels: ignite-3
>
> h3. Motivation
> For the purposes of phase 2 of
> [IEP-131|https://cwiki.apache.org/confluence/display/IGNITE/IEP-131%3A+Partition+Majority+Unavailability+Handling],
>
> and https://issues.apache.org/jira/browse/IGNITE-23870,
> we need to have an ability to understand in the stable switch phase, if
> planned, that is going to be written to pending, is triggered by two phase
> resetPartitions, or it is is triggered by graceful change, like scale up and
> etc. This is needed because we want to decide in the
> https://issues.apache.org/jira/browse/IGNITE-23870, should we rewrite newly
> introduced key {{assignments.chain}} with current pending or need to add this
> pending to the chain. Details could be found here
> (https://issues.apache.org/jira/browse/IGNITE-23870)
> h3. Implementation notes
> We introduce new boolean filed in {{partitiondistribution.Assignments}},
> let's name it like {{secondPhaseOfReset}}
> In {{GroupUpdateRequest#partitionUpdate}}, when we write planned for the
> second phase of reset, we must set {{planned.secondPhaseOfReset(true)}}
>
> h3. Definition of done
> * Planned assignment in the second phase of reset is enriched with
> {{secondPhaseOfReset(true)}}
> * Pending after stable switch, which was written from that pending, also must
> have {{secondPhaseOfReset == true}}
> * Asserts must be checked:
> {noformat}
> // force == true, asserts secondPhaseOfReset == false
> // secondPhaseOfReset == true, assert force == false
> {noformat}
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