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https://issues.apache.org/jira/browse/IGNITE-21018?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pavel Pereslegin updated IGNITE-21018:
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Attachment: ReferencesCache.java
> Sql. Introduce cache for plan mapping
> -------------------------------------
>
> Key: IGNITE-21018
> URL: https://issues.apache.org/jira/browse/IGNITE-21018
> Project: Ignite
> Issue Type: Improvement
> Components: sql
> Reporter: Konstantin Orlov
> Assignee: Pavel Pereslegin
> Priority: Major
> Labels: ignite-3
> Attachments: ReferencesCache.java
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Mapping query on cluster topology is fairly expensive operation, because it
> requires acquiring replicas per every partition a traversing a plan tree in
> order to compute colocation of a query fragment.
> This problem can be mitigated by introducing a cache for mapped queries.
> Implementation notes: do not forget to invalidate cache when partition lease
> got expired or logical topology has been changed.
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