| /** |
| * 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.hadoop.hbase; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNull; |
| |
| import java.io.IOException; |
| import org.apache.hadoop.hbase.client.RegionInfo; |
| import org.apache.hadoop.hbase.regionserver.HRegionServer; |
| import org.apache.hadoop.hbase.testclassification.MediumTests; |
| import org.apache.hadoop.hbase.testclassification.MiscTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.hadoop.hbase.zookeeper.MiniZooKeeperCluster; |
| import org.apache.hbase.thirdparty.com.google.common.collect.Iterables; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.ClassRule; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| import org.junit.rules.TestName; |
| |
| /** |
| * Test whether moved region cache is correct |
| */ |
| @Category({ MiscTests.class, MediumTests.class }) |
| public class TestMovedRegionCache { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestMovedRegionCache.class); |
| |
| @Rule |
| public TestName name = new TestName(); |
| |
| private HBaseTestingUtility UTIL; |
| private MiniZooKeeperCluster zkCluster; |
| private HRegionServer source; |
| private HRegionServer dest; |
| private RegionInfo movedRegionInfo; |
| |
| @Before |
| public void setup() throws Exception { |
| UTIL = new HBaseTestingUtility(); |
| zkCluster = UTIL.startMiniZKCluster(); |
| StartMiniClusterOption option = StartMiniClusterOption.builder().numRegionServers(2).build(); |
| MiniHBaseCluster cluster = UTIL.startMiniHBaseCluster(option); |
| source = cluster.getRegionServer(0); |
| dest = cluster.getRegionServer(1); |
| assertEquals(2, cluster.getRegionServerThreads().size()); |
| TableName tableName = TableName.valueOf(name.getMethodName()); |
| UTIL.createTable(tableName, Bytes.toBytes("cf")); |
| UTIL.waitTableAvailable(tableName, 30_000); |
| movedRegionInfo = Iterables.getOnlyElement(cluster.getRegions(tableName)).getRegionInfo(); |
| UTIL.getAdmin().move(movedRegionInfo.getEncodedNameAsBytes(), source.getServerName()); |
| UTIL.waitFor(2000, new Waiter.Predicate<IOException>() { |
| @Override |
| public boolean evaluate() throws IOException { |
| return source.getOnlineRegion(movedRegionInfo.getRegionName()) != null; |
| } |
| }); |
| } |
| |
| @After |
| public void after() throws Exception { |
| UTIL.shutdownMiniCluster(); |
| if (zkCluster != null) { |
| zkCluster.shutdown(); |
| } |
| } |
| |
| @Test |
| public void testMovedRegionsCache() throws IOException, InterruptedException { |
| UTIL.getAdmin().move(movedRegionInfo.getEncodedNameAsBytes(), dest.getServerName()); |
| UTIL.waitFor(2000, new Waiter.Predicate<IOException>() { |
| @Override |
| public boolean evaluate() throws IOException { |
| return dest.getOnlineRegion(movedRegionInfo.getRegionName()) != null; |
| } |
| }); |
| assertNotNull("Moved region NOT in the cache!", source.getMovedRegion( |
| movedRegionInfo.getEncodedName())); |
| Thread.sleep(source.movedRegionCacheExpiredTime()); |
| assertNull("Expired moved region exist in the cache!", source.getMovedRegion( |
| movedRegionInfo.getEncodedName())); |
| } |
| } |