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https://issues.apache.org/jira/browse/IGNITE-24375?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksandr Polovtsev reassigned IGNITE-24375:
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Assignee: Alexander Lapin (was: Aleksandr Polovtsev)
> Adjust PlacementDriver to track zone's assignments instead of table ones if
> colocation feature flag is enabled
> --------------------------------------------------------------------------------------------------------------
>
> Key: IGNITE-24375
> URL: https://issues.apache.org/jira/browse/IGNITE-24375
> Project: Ignite
> Issue Type: Improvement
> Reporter: Alexander Lapin
> Assignee: Alexander Lapin
> Priority: Major
> Labels: ignite-3
> Time Spent: 10m
> Remaining Estimate: 0h
>
> h3. Motivation
> Instead of table assignments, PD should track zone assignments: ones with
> prefix zones ZoneRebalanceUtil#PENDING_ASSIGNMENTS_PREFIX and thus elect one
> of zone's replicas as primary one. Please pay attention that colocation
> specific PrimaryReplicaChangeCommand processing is expected to be implemented
> in separate ticket IGNITE-24374
> h3. Definition of Done
> * Instead of TestPlacementDriver common one is used in majority of
> colocation tests. Some tests require primary replica changes that are easier
> to enforce using test placement driver.
> * Depending on whether collocation is enabled or not PD tracks either zone's
> assignments or table's ones. Not sure whether it's better to switch that
> inside PD or start different PD within Ignite Node start procedure.
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