[CASSANDRA-11555] Make prepared statement cache size configurable

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 3.6
• Component/s: Legacy/CQL
• Impacts: Docs
• Assignee: Robert Stupp
• Reporter: Robert Stupp

Authors

Robert Stupp

Reviewers

Benjamin Lerer

• Created: 12/Apr/16 10:56
• Updated: 06/Nov/19 22:04
• Resolved: 02/May/16 15:12

Description

The prepared statement caches in org.apache.cassandra.cql3.QueryProcessor are configured using the formula Runtime.getRuntime().maxMemory() / 256. Sometimes applications may need more than that. Proposal is to make that value configurable - probably also distinguish thrift and native CQL3 queries (new applications don't need the thrift stuff).