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.hamcrest.CoreMatchers.instanceOf;
021import static org.junit.Assert.assertArrayEquals;
022import static org.junit.Assert.assertFalse;
023import static org.junit.Assert.assertThat;
024import static org.junit.Assert.assertTrue;
025import static org.junit.Assert.fail;
026
027import java.io.IOException;
028import java.util.ArrayList;
029import java.util.Arrays;
030import java.util.List;
031import java.util.concurrent.CompletableFuture;
032import java.util.concurrent.ExecutionException;
033import java.util.concurrent.ThreadLocalRandom;
034import java.util.stream.Collectors;
035import java.util.stream.IntStream;
036import org.apache.hadoop.hbase.HBaseClassTestRule;
037import org.apache.hadoop.hbase.HBaseTestingUtility;
038import org.apache.hadoop.hbase.TableName;
039import org.apache.hadoop.hbase.testclassification.ClientTests;
040import org.apache.hadoop.hbase.testclassification.MediumTests;
041import org.apache.hadoop.hbase.util.Bytes;
042import org.junit.AfterClass;
043import org.junit.BeforeClass;
044import org.junit.ClassRule;
045import org.junit.Test;
046import org.junit.experimental.categories.Category;
047
048@Category({ MediumTests.class, ClientTests.class })
049public class TestAsyncBufferMutator {
050
051  @ClassRule
052  public static final HBaseClassTestRule CLASS_RULE =
053      HBaseClassTestRule.forClass(TestAsyncBufferMutator.class);
054
055  private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
056
057  private static TableName TABLE_NAME = TableName.valueOf("async");
058
059  private static TableName MULTI_REGION_TABLE_NAME = TableName.valueOf("async-multi-region");
060
061  private static byte[] CF = Bytes.toBytes("cf");
062
063  private static byte[] CQ = Bytes.toBytes("cq");
064
065  private static int COUNT = 100;
066
067  private static byte[] VALUE = new byte[1024];
068
069  private static AsyncConnection CONN;
070
071  @BeforeClass
072  public static void setUp() throws Exception {
073    TEST_UTIL.startMiniCluster(1);
074    TEST_UTIL.createTable(TABLE_NAME, CF);
075    TEST_UTIL.createMultiRegionTable(MULTI_REGION_TABLE_NAME, CF);
076    CONN = ConnectionFactory.createAsyncConnection(TEST_UTIL.getConfiguration()).get();
077    ThreadLocalRandom.current().nextBytes(VALUE);
078  }
079
080  @AfterClass
081  public static void tearDown() throws Exception {
082    CONN.close();
083    TEST_UTIL.shutdownMiniCluster();
084  }
085
086  @Test
087  public void testWithMultiRegionTable() throws InterruptedException {
088    test(MULTI_REGION_TABLE_NAME);
089  }
090
091  @Test
092  public void testWithSingleRegionTable() throws InterruptedException {
093    test(TABLE_NAME);
094  }
095
096  private void test(TableName tableName) throws InterruptedException {
097    List<CompletableFuture<Void>> futures = new ArrayList<>();
098    try (AsyncBufferedMutator mutator =
099        CONN.getBufferedMutatorBuilder(tableName).setWriteBufferSize(16 * 1024).build()) {
100      List<CompletableFuture<Void>> fs = mutator.mutate(IntStream.range(0, COUNT / 2)
101          .mapToObj(i -> new Put(Bytes.toBytes(i)).addColumn(CF, CQ, VALUE))
102          .collect(Collectors.toList()));
103      // exceeded the write buffer size, a flush will be called directly
104      fs.forEach(f -> f.join());
105      IntStream.range(COUNT / 2, COUNT).forEach(i -> {
106        futures.add(mutator.mutate(new Put(Bytes.toBytes(i)).addColumn(CF, CQ, VALUE)));
107      });
108      // the first future should have been sent out.
109      futures.get(0).join();
110      Thread.sleep(2000);
111      // the last one should still be in write buffer
112      assertFalse(futures.get(futures.size() - 1).isDone());
113    }
114    // mutator.close will call mutator.flush automatically so all tasks should have been done.
115    futures.forEach(f -> f.join());
116    AsyncTable<?> table = CONN.getTable(tableName);
117    IntStream.range(0, COUNT).mapToObj(i -> new Get(Bytes.toBytes(i))).map(g -> table.get(g).join())
118        .forEach(r -> {
119          assertArrayEquals(VALUE, r.getValue(CF, CQ));
120        });
121  }
122
123  @Test
124  public void testClosedMutate() throws InterruptedException {
125    AsyncBufferedMutator mutator = CONN.getBufferedMutator(TABLE_NAME);
126    mutator.close();
127    Put put = new Put(Bytes.toBytes(0)).addColumn(CF, CQ, VALUE);
128    try {
129      mutator.mutate(put).get();
130      fail("Close check failed");
131    } catch (ExecutionException e) {
132      assertThat(e.getCause(), instanceOf(IOException.class));
133      assertTrue(e.getCause().getMessage().startsWith("Already closed"));
134    }
135    for (CompletableFuture<Void> f : mutator.mutate(Arrays.asList(put))) {
136      try {
137        f.get();
138        fail("Close check failed");
139      } catch (ExecutionException e) {
140        assertThat(e.getCause(), instanceOf(IOException.class));
141        assertTrue(e.getCause().getMessage().startsWith("Already closed"));
142      }
143    }
144  }
145}