Merge branch '2.2.x'

Closes gh-20718

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/cassandra/CassandraReactiveHealthIndicator.java

@@ -15,6 +15,7 @@
  */
 package org.springframework.boot.actuate.cassandra;
 
+import com.datastax.oss.driver.api.core.ConsistencyLevel;
 import com.datastax.oss.driver.api.core.cql.SimpleStatement;
 import reactor.core.publisher.Mono;
 
@@ -32,6 +33,9 @@ import org.springframework.util.Assert;
  */
 public class CassandraReactiveHealthIndicator extends AbstractReactiveHealthIndicator {
 
+	private static final SimpleStatement SELECT = SimpleStatement
+			.newInstance("SELECT release_version FROM system.local").setConsistencyLevel(ConsistencyLevel.LOCAL_ONE);
+
 	private final ReactiveCassandraOperations reactiveCassandraOperations;
 
 	/**
@@ -46,8 +50,7 @@ public class CassandraReactiveHealthIndicator extends AbstractReactiveHealthIndi
 
 	@Override
 	protected Mono<Health> doHealthCheck(Health.Builder builder) {
-		SimpleStatement select = SimpleStatement.newInstance("SELECT release_version FROM system.local");
-		return this.reactiveCassandraOperations.getReactiveCqlOperations().queryForObject(select, String.class)
+		return this.reactiveCassandraOperations.getReactiveCqlOperations().queryForObject(SELECT, String.class)
 				.map((version) -> builder.up().withDetail("version", version).build()).single();
 	}