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60570d7114
Allow creating materialized views and secondary indexes in a tablets keyspace only if it's RF-rack-valid, and enforce RF-rack-validity while the keyspace has views by restricting some operations: * Altering a keyspace's RF if it would make the keyspace RF-rack-invalid * Adding a node in a new rack * Removing / Decommissioning the last node in a rack Previously the config option `rf_rack_valid_keyspaces` was required for creating views. We now remove this restriction - it's not needed because we always maintain RF-rack-validity for keyspaces with views. The restrictions are relevant only for keyspaces with numerical RF. Keyspace with rack-list-based RF are always RF-rack-valid. Fixes scylladb/scylladb#23345 Fixes https://github.com/scylladb/scylladb/issues/26820 backport to relevant versions for materialized views with tablets since it depends on rf-rack validity Closes scylladb/scylladb#26354 * github.com:scylladb/scylladb: docs: update RF-rack restrictions cql3: don't apply RF-rack restrictions on vector indexes cql3: add warning when creating mv/index with tablets about rf-rack service/tablet_allocator: always allow tablet merge of tables with views locator: extend rf-rack validation for rack lists test: test rf-rack validity when creating keyspace during node ops locator: fix rf-rack validation during node join/remove test: test topology restrictions for views with tablets test: add test_topology_ops_with_rf_rack_valid topology coordinator: restrict node join/remove to preserve RF-rack validity topology coordinator: add validation to node remove locator: extend rf-rack validation functions view: change validate_view_keyspace to allow MVs if RF=Racks db: enforce rf-rack-validity for keyspaces with views replica/db: add enforce_rf_rack_validity_for_keyspace helper db: remove enforce parameter from check_rf_rack_validity test: adjust test to not break rf-rack validity