| /** |
| * 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 java.io.IOException; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.testclassification.MediumTests; |
| import org.apache.hadoop.hbase.testclassification.MiscTests; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| /** |
| * Test whether background cleanup of MovedRegion entries is happening |
| */ |
| @Category({ MiscTests.class, MediumTests.class }) |
| public class TestMovedRegionsCleaner { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestMovedRegionsCleaner.class); |
| |
| private final HBaseTestingUtility UTIL = new HBaseTestingUtility(); |
| |
| public static int numCalls = 0; |
| |
| private static class TestMockRegionServer extends MiniHBaseCluster.MiniHBaseClusterRegionServer { |
| |
| public TestMockRegionServer(Configuration conf) throws IOException, InterruptedException { |
| super(conf); |
| } |
| |
| @Override |
| protected int movedRegionCleanerPeriod() { |
| return 500; |
| } |
| |
| @Override protected void cleanMovedRegions() { |
| // count the number of calls that are being made to this |
| // |
| numCalls++; |
| super.cleanMovedRegions(); |
| } |
| } |
| |
| @After public void after() throws Exception { |
| UTIL.shutdownMiniCluster(); |
| } |
| |
| @Before public void before() throws Exception { |
| UTIL.getConfiguration() |
| .setStrings(HConstants.REGION_SERVER_IMPL, TestMockRegionServer.class.getName()); |
| UTIL.startMiniCluster(1); |
| } |
| |
| /** |
| * Start the cluster, wait for some time and verify that the background |
| * MovedRegion cleaner indeed gets called |
| * |
| * @throws IOException |
| * @throws InterruptedException |
| */ |
| @Test public void testMovedRegionsCleaner() throws IOException, InterruptedException { |
| // We need to sleep long enough to trigger at least one round of background calls |
| // to MovedRegionCleaner happen. Currently the period is set to 500ms. |
| // Setting the sleep here for 2s just to be safe |
| // |
| UTIL.waitFor(2000, new Waiter.Predicate<IOException>() { |
| @Override |
| public boolean evaluate() throws IOException { |
| |
| // verify that there was at least one call to the cleanMovedRegions function |
| // |
| return numCalls > 0; |
| } |
| }); |
| } |
| } |