| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.cassandra.metrics; |
| |
| import java.io.IOException; |
| |
| import org.junit.AfterClass; |
| import org.junit.Assert; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import com.datastax.driver.core.Cluster; |
| import com.datastax.driver.core.PreparedStatement; |
| import com.datastax.driver.core.Session; |
| import com.datastax.driver.core.exceptions.InvalidQueryException; |
| import org.apache.cassandra.ServerTestUtils; |
| import org.apache.cassandra.config.DatabaseDescriptor; |
| import org.apache.cassandra.cql3.QueryProcessor; |
| import org.apache.cassandra.exceptions.ConfigurationException; |
| import org.apache.cassandra.service.EmbeddedCassandraService; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| public class CQLMetricsTest |
| { |
| private static Cluster cluster; |
| private static Session session; |
| private static EmbeddedCassandraService cassandra; |
| |
| @BeforeClass() |
| public static void setup() throws ConfigurationException, IOException |
| { |
| cassandra = ServerTestUtils.startEmbeddedCassandraService(); |
| |
| cluster = Cluster.builder().addContactPoint("127.0.0.1").withPort(DatabaseDescriptor.getNativeTransportPort()).build(); |
| session = cluster.connect(); |
| |
| session.execute("CREATE KEYSPACE IF NOT EXISTS junit WITH replication = { 'class' : 'SimpleStrategy', 'replication_factor' : 1 };"); |
| session.execute("CREATE TABLE IF NOT EXISTS junit.metricstest (id int PRIMARY KEY, val text);"); |
| } |
| |
| @AfterClass |
| public static void tearDown() |
| { |
| if (cluster != null) |
| cluster.close(); |
| if (cassandra != null) |
| cassandra.stop(); |
| } |
| |
| @Test |
| public void testConnectionWithUseDisabled() |
| { |
| long useCountBefore = QueryProcessor.metrics.useStatementsExecuted.getCount(); |
| DatabaseDescriptor.setUseStatementsEnabled(false); |
| |
| try (Session ignored = cluster.connect("junit")) |
| { |
| fail("expected USE statement to fail with use_statements_enabled = false"); |
| } |
| catch (InvalidQueryException e) |
| { |
| Assert.assertEquals(useCountBefore, QueryProcessor.metrics.useStatementsExecuted.getCount()); |
| assertTrue(e.getMessage().contains("USE statements prohibited")); |
| } |
| finally |
| { |
| DatabaseDescriptor.setUseStatementsEnabled(true); |
| } |
| } |
| |
| @Test |
| public void testPreparedStatementsCount() |
| { |
| int n = QueryProcessor.metrics.preparedStatementsCount.getValue(); |
| long useCountBefore = QueryProcessor.metrics.useStatementsExecuted.getCount(); |
| session.execute("use junit"); |
| Assert.assertEquals(useCountBefore + 1, QueryProcessor.metrics.useStatementsExecuted.getCount()); |
| session.prepare("SELECT * FROM junit.metricstest WHERE id = ?"); |
| assertEquals(n+2, (int) QueryProcessor.metrics.preparedStatementsCount.getValue()); |
| } |
| |
| @Test |
| public void testRegularStatementsExecuted() |
| { |
| clearMetrics(); |
| PreparedStatement metricsStatement = session.prepare("INSERT INTO junit.metricstest (id, val) VALUES (?, ?)"); |
| |
| assertEquals(0, QueryProcessor.metrics.preparedStatementsExecuted.getCount()); |
| assertEquals(0, QueryProcessor.metrics.regularStatementsExecuted.getCount()); |
| |
| for (int i = 0; i < 10; i++) |
| session.execute(String.format("INSERT INTO junit.metricstest (id, val) VALUES (%d, '%s')", i, "val" + i)); |
| |
| assertEquals(0, QueryProcessor.metrics.preparedStatementsExecuted.getCount()); |
| assertEquals(10, QueryProcessor.metrics.regularStatementsExecuted.getCount()); |
| } |
| |
| @Test |
| public void testPreparedStatementsExecuted() |
| { |
| clearMetrics(); |
| PreparedStatement metricsStatement = session.prepare("INSERT INTO junit.metricstest (id, val) VALUES (?, ?)"); |
| |
| assertEquals(0, QueryProcessor.metrics.preparedStatementsExecuted.getCount()); |
| assertEquals(0, QueryProcessor.metrics.regularStatementsExecuted.getCount()); |
| |
| for (int i = 0; i < 10; i++) |
| session.execute(metricsStatement.bind(i, "val" + i)); |
| |
| assertEquals(10, QueryProcessor.metrics.preparedStatementsExecuted.getCount()); |
| assertEquals(0, QueryProcessor.metrics.regularStatementsExecuted.getCount()); |
| } |
| |
| @Test |
| public void testPreparedStatementsRatio() |
| { |
| clearMetrics(); |
| PreparedStatement metricsStatement = session.prepare("INSERT INTO junit.metricstest (id, val) VALUES (?, ?)"); |
| |
| assertEquals(Double.NaN, QueryProcessor.metrics.preparedStatementsRatio.getValue(), 0.0); |
| |
| for (int i = 0; i < 10; i++) |
| session.execute(metricsStatement.bind(i, "val" + i)); |
| assertEquals(1.0, QueryProcessor.metrics.preparedStatementsRatio.getValue(), 0.0); |
| |
| for (int i = 0; i < 10; i++) |
| session.execute(String.format("INSERT INTO junit.metricstest (id, val) VALUES (%d, '%s')", i, "val" + i)); |
| assertEquals(0.5, QueryProcessor.metrics.preparedStatementsRatio.getValue(), 0.0); |
| } |
| |
| private void clearMetrics() |
| { |
| QueryProcessor.metrics.preparedStatementsExecuted.dec(QueryProcessor.metrics.preparedStatementsExecuted.getCount()); |
| QueryProcessor.metrics.regularStatementsExecuted.dec(QueryProcessor.metrics.regularStatementsExecuted.getCount()); |
| QueryProcessor.metrics.preparedStatementsEvicted.dec(QueryProcessor.metrics.preparedStatementsEvicted.getCount()); |
| } |
| } |
| |