hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAsyncTableLocatePrefetch.java

   1 /**
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements.  See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership.  The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License.  You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18 package org.apache.hadoop.hbase.client;
  19
  20 import static org.junit.Assert.assertNotNull;
  21
  22 import java.util.concurrent.ExecutionException;
  23 import org.apache.hadoop.hbase.HBaseClassTestRule;
  24 import org.apache.hadoop.hbase.HBaseTestingUtil;
  25 import org.apache.hadoop.hbase.TableName;
  26 import org.apache.hadoop.hbase.testclassification.ClientTests;
  27 import org.apache.hadoop.hbase.testclassification.MediumTests;
  28 import org.apache.hadoop.hbase.util.Bytes;
  29 import org.junit.AfterClass;
  30 import org.junit.BeforeClass;
  31 import org.junit.ClassRule;
  32 import org.junit.Test;
  33 import org.junit.experimental.categories.Category;
  34
  35 import org.apache.hbase.thirdparty.com.google.common.io.Closeables;
  36
  37 @Category({ MediumTests.class, ClientTests.class })
  38 public class TestAsyncTableLocatePrefetch {
  39
  40   @ClassRule
  41   public static final HBaseClassTestRule CLASS_RULE =
  42     HBaseClassTestRule.forClass(TestAsyncTableLocatePrefetch.class);
  43
  44   private static final HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();
  45
  46   private static TableName TABLE_NAME = TableName.valueOf("async");
  47
  48   private static byte[] FAMILY = Bytes.toBytes("cf");
  49
  50   private static AsyncConnection CONN;
  51
  52   private static AsyncNonMetaRegionLocator LOCATOR;
  53
  54   @BeforeClass
  55   public static void setUp() throws Exception {
  56     TEST_UTIL.getConfiguration().setInt(AsyncNonMetaRegionLocator.LOCATE_PREFETCH_LIMIT, 100);
  57     TEST_UTIL.startMiniCluster(3);
  58     TEST_UTIL.createMultiRegionTable(TABLE_NAME, FAMILY);
  59     TEST_UTIL.waitTableAvailable(TABLE_NAME);
  60     CONN = ConnectionFactory.createAsyncConnection(TEST_UTIL.getConfiguration()).get();
  61     LOCATOR = new AsyncNonMetaRegionLocator((AsyncConnectionImpl) CONN);
  62   }
  63
  64   @AfterClass
  65   public static void tearDown() throws Exception {
  66     Closeables.close(CONN, true);
  67     TEST_UTIL.shutdownMiniCluster();
  68   }
  69
  70   @Test
  71   public void test() throws InterruptedException, ExecutionException {
  72     assertNotNull(LOCATOR.getRegionLocations(TABLE_NAME, Bytes.toBytes("zzz"),
  73       RegionReplicaUtil.DEFAULT_REPLICA_ID, RegionLocateType.CURRENT, false).get());
  74     // we finish the request before we adding the remaining results to cache so sleep a bit here
  75     Thread.sleep(1000);
  76     // confirm that the locations of all the regions have been cached.
  77     assertNotNull(LOCATOR.getRegionLocationInCache(TABLE_NAME, Bytes.toBytes("aaa")));
  78     for (byte[] row : HBaseTestingUtil.KEYS_FOR_HBA_CREATE_TABLE) {
  79       assertNotNull(LOCATOR.getRegionLocationInCache(TABLE_NAME, row));
  80     }
  81   }
  82 }