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https://issues.apache.org/jira/browse/IGNITE-16020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17481321#comment-17481321
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Vyacheslav Koptilin commented on IGNITE-16020:
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Hello [~kgusakov],
In general, the proposed algorithm looks good to me.
Could you please add a description for the following metastorage keys:
- partition.assignments.stable
- partition.assignments.pending
> Finalize algorithm of assignments updates
> -----------------------------------------
>
> Key: IGNITE-16020
> URL: https://issues.apache.org/jira/browse/IGNITE-16020
> Project: Ignite
> Issue Type: Task
> Reporter: Kirill Gusakov
> Assignee: Kirill Gusakov
> Priority: Blocker
> Labels: ignite-3
>
> Triggers for assignments recalculation:
> * Changes in baseline
> * Changes in numbers of replicas
> * Changes in numbers of table partitions
> For 1 phase of the rebalancing algorithm, we need to support the first 2.
>
> The algorithm must provide the way to:
> * Recalculate assignments for all partitions and update appropriate
> assignments keys in metastore
> * Start all needed new raft groups
> * Initiate changePeers process and handle failover scenarios for it
> * Stop all redundant raft groups, when change peers done
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