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Pavel Pereslegin reassigned IGNITE-21018: ----------------------------------------- Assignee: Pavel Pereslegin > 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 > > 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. -- This message was sent by Atlassian Jira (v8.20.10#820010)