| /* |
| * 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.phoenix.query; |
| |
| import static org.apache.phoenix.util.TestUtil.TEST_PROPERTIES; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.lang.ref.WeakReference; |
| import java.sql.Connection; |
| import java.sql.DriverManager; |
| import java.util.Arrays; |
| import java.util.Properties; |
| import java.util.concurrent.LinkedBlockingQueue; |
| |
| import org.apache.phoenix.end2end.ParallelStatsEnabledIT; |
| import org.apache.phoenix.jdbc.PhoenixConnection; |
| import org.apache.phoenix.query.ConnectionQueryServices; |
| import org.apache.phoenix.query.ConnectionQueryServicesImpl; |
| import org.apache.phoenix.query.DelegateConnectionQueryServices; |
| import org.apache.phoenix.query.QueryServicesOptions; |
| import org.apache.phoenix.util.PhoenixRuntime; |
| import org.apache.phoenix.util.PropertiesUtil; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| @RunWith(Parameterized.class) |
| public class ConnectionCachingIT extends ParallelStatsEnabledIT { |
| private static final Logger LOGGER = LoggerFactory.getLogger(ConnectionCachingIT.class); |
| |
| @Parameters(name= "phoenix.scanner.lease.renew.enabled={0}") |
| public static synchronized Iterable<String> data() { |
| return Arrays.asList("true", "false"); |
| } |
| |
| private String leaseRenewal; |
| |
| public ConnectionCachingIT(String leaseRenewalValue) { |
| this.leaseRenewal = leaseRenewalValue; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| Properties props = PropertiesUtil.deepCopy(TEST_PROPERTIES); |
| props.put("phoenix.scanner.lease.renew.enabled", leaseRenewal); |
| |
| // The test driver works correctly, the real one doesn't. |
| String url = getUrl(); |
| url = url.replace(";" + PhoenixRuntime.PHOENIX_TEST_DRIVER_URL_PARAM, ""); |
| LOGGER.info("URL to use is: {}", url); |
| |
| Connection conn = DriverManager.getConnection(url, props); |
| long before = getNumCachedConnections(conn); |
| for (int i = 0; i < 10_000; i++) { |
| Connection c = DriverManager.getConnection(url, props); |
| c.close(); |
| } |
| Thread.sleep(QueryServicesOptions.DEFAULT_RUN_RENEW_LEASE_FREQUENCY_INTERVAL_MILLISECONDS / 2); |
| long after = getNumCachedConnections(conn); |
| for (int i = 0; i < 6; i++) { |
| LOGGER.info("Found {} connections cached", after); |
| if (after <= before) { |
| break; |
| } |
| Thread.sleep(QueryServicesOptions.DEFAULT_RUN_RENEW_LEASE_FREQUENCY_INTERVAL_MILLISECONDS / 2); |
| after = getNumCachedConnections(conn); |
| } |
| assertTrue("Saw " + before + " connections, but ended with " + after, after <= before); |
| } |
| |
| long getNumCachedConnections(Connection conn) throws Exception { |
| PhoenixConnection pConn = conn.unwrap(PhoenixConnection.class); |
| ConnectionQueryServices cqs = pConn.getQueryServices(); |
| // For whatever reason, we sometimes get a delegate here, and sometimes the real thing. |
| if (cqs instanceof DelegateConnectionQueryServices) { |
| cqs = ((DelegateConnectionQueryServices) cqs).getDelegate(); |
| } |
| assertTrue("ConnectionQueryServices was a " + cqs.getClass(), cqs instanceof ConnectionQueryServicesImpl); |
| ConnectionQueryServicesImpl cqsi = (ConnectionQueryServicesImpl) cqs; |
| long cachedConnections = 0L; |
| for (LinkedBlockingQueue<WeakReference<PhoenixConnection>> queue : cqsi.getCachedConnections()) { |
| cachedConnections += queue.size(); |
| } |
| return cachedConnections; |
| } |
| } |