[CASSANDRA-17370] Add flag enabling operators to restrict use of ALLOW FILTERING in queries

• Type: Improvement
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 4.1-alpha1, 4.1
• Component/s: CQL/Semantics, Feature/Guardrails
• Epic Link: CEP-3: Guardrails
• Change Category: Operability
• Complexity: Low Hanging Fruit
• Platform: All

Source Control Link

https://github.com/apache/cassandra/commit/f444c4028680c78b6167161833d6564c3557618f

Test and Documentation Plan

add test, run CI

• Assignee: Savni Nagarkar
• Reporter: Savni Nagarkar

Authors

Savni Nagarkar

Reviewers

Andres de la Peña, Josh McKenzie

• Created: 09/Feb/22 23:23
• Updated: 27/May/22 19:25
• Resolved: 26/Apr/22 17:37

Description

This ticket adds the ability for operators to disallow use of ALLOW FILTERING predicates in CQL SELECT statements. As queries that ALLOW FILTERING can place additional load on the database, the flag enables operators to provide tighter bounds on performance guarantees. The patch includes a new yaml property, as well as a hot property enabling the value to be modified via JMX at runtime.

Issue Links

• relates to: CASSANDRA-17430 Improve guardrails messages