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.assertThrows;
021
022import java.io.IOException;
023import java.util.concurrent.CompletableFuture;
024import org.apache.hadoop.conf.Configuration;
025import org.apache.hadoop.hbase.DoNotRetryIOException;
026import org.apache.hadoop.hbase.HBaseConfiguration;
027import org.apache.hadoop.hbase.RegionLocations;
028import org.apache.hadoop.hbase.security.User;
029import org.apache.hadoop.hbase.security.UserProvider;
030import org.apache.hadoop.hbase.testclassification.ClientTests;
031import org.apache.hadoop.hbase.testclassification.SmallTests;
032import org.apache.hadoop.hbase.util.FutureUtils;
033import org.junit.jupiter.api.BeforeAll;
034import org.junit.jupiter.api.Tag;
035import org.junit.jupiter.api.Test;
036
037@Tag(ClientTests.TAG)
038@Tag(SmallTests.TAG)
039public class TestAsyncMetaRegionLocatorFailFast {
040
041  private static Configuration CONF = HBaseConfiguration.create();
042
043  private static AsyncMetaRegionLocator LOCATOR;
044
045  private static final class FaultyConnectionRegistry extends DoNothingConnectionRegistry {
046
047    public FaultyConnectionRegistry(Configuration conf, User user) {
048      super(conf, user);
049    }
050
051    @Override
052    public CompletableFuture<RegionLocations> getMetaRegionLocations() {
053      return FutureUtils.failedFuture(new DoNotRetryRegionException("inject error"));
054    }
055  }
056
057  @BeforeAll
058  public static void setUp() throws IOException {
059    LOCATOR = new AsyncMetaRegionLocator(
060      new FaultyConnectionRegistry(CONF, UserProvider.instantiate(CONF).getCurrent()));
061  }
062
063  @Test
064  public void test() throws IOException {
065    assertThrows(DoNotRetryIOException.class,
066      () -> FutureUtils.get(LOCATOR.getRegionLocations(RegionInfo.DEFAULT_REPLICA_ID, false)));
067  }
068}