xcangCRM commented on a change in pull request #773: HBASE-23212 : Dynamically reload configs for Region Recovery chore URL: https://github.com/apache/hbase/pull/773#discussion_r342198740
########## File path: hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestRegionsRecoveryConfigManager.java ########## @@ -0,0 +1,147 @@ +/* + * 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.master; + +import java.io.IOException; + +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.hbase.HBaseClassTestRule; +import org.apache.hadoop.hbase.HBaseTestingUtility; +import org.apache.hadoop.hbase.MiniHBaseCluster; +import org.apache.hadoop.hbase.StartMiniClusterOption; +import org.apache.hadoop.hbase.Stoppable; +import org.apache.hadoop.hbase.testclassification.MasterTests; +import org.apache.hadoop.hbase.testclassification.MediumTests; +import org.apache.zookeeper.KeeperException; +import org.junit.After; +import org.junit.Assert; +import org.junit.Before; +import org.junit.ClassRule; +import org.junit.Test; +import org.junit.experimental.categories.Category; + +/** + * Test for Regions Recovery Config Manager + */ +@Category({MasterTests.class, MediumTests.class}) +public class TestRegionsRecoveryConfigManager { + + @ClassRule + public static final HBaseClassTestRule CLASS_RULE = + HBaseClassTestRule.forClass(TestRegionsRecoveryConfigManager.class); + + private static final HBaseTestingUtility HBASE_TESTING_UTILITY = new HBaseTestingUtility(); + + private MiniHBaseCluster cluster; + + private HMaster hMaster; + + private RegionsRecoveryChore regionsRecoveryChore; + + private RegionsRecoveryConfigManager regionsRecoveryConfigManager; + + private Configuration conf; + + @Before + public void setup() throws Exception { + conf = HBASE_TESTING_UTILITY.getConfiguration(); + conf.unset("hbase.regions.recovery.store.file.ref.count"); + conf.unset("hbase.master.regions.recovery.check.interval"); + StartMiniClusterOption option = StartMiniClusterOption.builder() + .masterClass(TestHMaster.class) + .numRegionServers(1) + .numDataNodes(1).build(); + HBASE_TESTING_UTILITY.startMiniCluster(option); + cluster = HBASE_TESTING_UTILITY.getMiniHBaseCluster(); + } + + @After + public void tearDown() throws Exception { + HBASE_TESTING_UTILITY.shutdownMiniCluster(); + } + + @Test + public void testChoreSchedule() throws Exception { + + this.hMaster = cluster.getMaster(); + + Stoppable stoppable = new StoppableImplementation(); + this.regionsRecoveryChore = new RegionsRecoveryChore(stoppable, conf, hMaster); + + this.regionsRecoveryConfigManager = new RegionsRecoveryConfigManager(this.hMaster); + // not yet scheduled + Assert.assertFalse(hMaster.getChoreService().isChoreScheduled(regionsRecoveryChore)); + + this.regionsRecoveryConfigManager.onConfigurationChange(conf); + // not yet scheduled + Assert.assertFalse(hMaster.getChoreService().isChoreScheduled(regionsRecoveryChore)); + + conf.setInt("hbase.master.regions.recovery.check.interval", 10); + this.regionsRecoveryConfigManager.onConfigurationChange(conf); + // not yet scheduled - missing config: hbase.regions.recovery.store.file.ref.count + Assert.assertFalse(hMaster.getChoreService().isChoreScheduled(regionsRecoveryChore)); + + conf.setInt("hbase.regions.recovery.store.file.ref.count", 10); + this.regionsRecoveryConfigManager.onConfigurationChange(conf); + // chore scheduled + Assert.assertTrue(hMaster.getChoreService().isChoreScheduled(regionsRecoveryChore)); + + conf.setInt("hbase.regions.recovery.store.file.ref.count", 20); + this.regionsRecoveryConfigManager.onConfigurationChange(conf); + // chore re-scheduled + Assert.assertTrue(hMaster.getChoreService().isChoreScheduled(regionsRecoveryChore)); + + conf.setInt("hbase.regions.recovery.store.file.ref.count", 20); + this.regionsRecoveryConfigManager.onConfigurationChange(conf); + // chore scheduling untouched + Assert.assertTrue(hMaster.getChoreService().isChoreScheduled(regionsRecoveryChore)); + + conf.unset("hbase.regions.recovery.store.file.ref.count"); + this.regionsRecoveryConfigManager.onConfigurationChange(conf); + // chore un-scheduled + Assert.assertFalse(hMaster.getChoreService().isChoreScheduled(regionsRecoveryChore)); + } + + // Make it public so that JVMClusterUtil can access it. + public static class TestHMaster extends HMaster { + public TestHMaster(Configuration conf) throws IOException, KeeperException { + super(conf); + } + } + + /** + * Simple helper class that just keeps track of whether or not its stopped. + */ + private static class StoppableImplementation implements Stoppable { + + private volatile boolean stop = false; Review comment: is this volatile necessary here? thanks ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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