001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.client;
019
020import static org.junit.jupiter.api.Assertions.assertEquals;
021import static org.junit.jupiter.api.Assertions.assertTrue;
022import static org.junit.jupiter.api.Assertions.fail;
023
024import java.io.IOException;
025import java.util.ArrayList;
026import java.util.List;
027import java.util.concurrent.CompletableFuture;
028import java.util.concurrent.ExecutionException;
029import org.apache.hadoop.conf.Configuration;
030import org.apache.hadoop.hbase.HBaseConfiguration;
031import org.apache.hadoop.hbase.HConstants;
032import org.apache.hadoop.hbase.security.User;
033import org.apache.hadoop.hbase.testclassification.ClientTests;
034import org.apache.hadoop.hbase.testclassification.SmallTests;
035import org.apache.hadoop.hbase.util.FutureUtils;
036import org.junit.jupiter.api.BeforeAll;
037import org.junit.jupiter.api.Tag;
038import org.junit.jupiter.api.Test;
039
040@Tag(ClientTests.TAG)
041@Tag(SmallTests.TAG)
042public class TestConnectionRegistryLeak {
043
044  public static final class ConnectionRegistryForTest extends DoNothingConnectionRegistry {
045
046    private boolean closed = false;
047
048    public ConnectionRegistryForTest(Configuration conf, User user) {
049      super(conf, user);
050      CREATED.add(this);
051    }
052
053    @Override
054    public CompletableFuture<String> getClusterId() {
055      return FutureUtils.failedFuture(new IOException("inject error"));
056    }
057
058    @Override
059    public void close() {
060      closed = true;
061    }
062  }
063
064  private static final List<ConnectionRegistryForTest> CREATED = new ArrayList<>();
065
066  private static Configuration CONF = HBaseConfiguration.create();
067
068  @BeforeAll
069  public static void setUp() {
070    CONF.setClass(HConstants.CLIENT_CONNECTION_REGISTRY_IMPL_CONF_KEY,
071      ConnectionRegistryForTest.class, ConnectionRegistry.class);
072  }
073
074  @Test
075  public void test() throws InterruptedException {
076    for (int i = 0; i < 10; i++) {
077      try {
078        ConnectionFactory.createAsyncConnection(CONF).get();
079        fail();
080      } catch (ExecutionException e) {
081        // expected
082      }
083    }
084    assertEquals(10, CREATED.size());
085    CREATED.forEach(r -> assertTrue(r.closed));
086  }
087}