Description
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.
Attachments
Attachments
Issue Links
- blocks
-
IGNITE-21201 Sql. Move computations from the listener thread
-
- Open
-
- is depended upon by
-
-
- Open
-
- relates to
-
IGNITE-20808 Sql. Poor performance of INSERT
-
- Resolved
-
- links to
