| /** |
| * 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.hdfs.server.namenode.ha; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hdfs.DFSConfigKeys; |
| import org.apache.hadoop.hdfs.DFSTestUtil; |
| import org.apache.hadoop.hdfs.HAUtil; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.hdfs.MiniDFSNNTopology; |
| import org.apache.hadoop.hdfs.server.blockmanagement.BlockManagerTestUtil; |
| import org.apache.hadoop.hdfs.server.namenode.NameNode; |
| import org.apache.log4j.Level; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| /** |
| * Makes sure that standby doesn't do the unnecessary block management such as |
| * invalidate block, etc. |
| */ |
| public class TestStandbyBlockManagement { |
| protected static final Log LOG = LogFactory.getLog( |
| TestStandbyBlockManagement.class); |
| private static final String TEST_FILE_DATA = "hello world"; |
| private static final String TEST_FILE = "/TestStandbyBlockManagement"; |
| private static final Path TEST_FILE_PATH = new Path(TEST_FILE); |
| |
| static { |
| DFSTestUtil.setNameNodeLogLevel(Level.ALL); |
| } |
| |
| @Test(timeout=60000) |
| public void testInvalidateBlock() throws Exception { |
| Configuration conf = new Configuration(); |
| HAUtil.setAllowStandbyReads(conf, true); |
| conf.setInt(DFSConfigKeys.DFS_HA_TAILEDITS_PERIOD_KEY, 1); |
| MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf) |
| .nnTopology(MiniDFSNNTopology.simpleHATopology()) |
| .numDataNodes(3) |
| .build(); |
| try { |
| cluster.waitActive(); |
| cluster.transitionToActive(0); |
| |
| NameNode nn1 = cluster.getNameNode(0); |
| NameNode nn2 = cluster.getNameNode(1); |
| |
| FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf); |
| |
| Thread.sleep(1000); |
| LOG.info("=================================="); |
| DFSTestUtil.writeFile(fs, TEST_FILE_PATH, TEST_FILE_DATA); |
| // Have to force an edit log roll so that the standby catches up |
| nn1.getRpcServer().rollEditLog(); |
| LOG.info("=================================="); |
| |
| // delete the file |
| fs.delete(TEST_FILE_PATH, false); |
| BlockManagerTestUtil.computeAllPendingWork( |
| nn1.getNamesystem().getBlockManager()); |
| |
| nn1.getRpcServer().rollEditLog(); |
| |
| // standby nn doesn't need to invalidate blocks. |
| assertEquals(0, |
| nn2.getNamesystem().getBlockManager().getPendingDeletionBlocksCount()); |
| |
| cluster.triggerHeartbeats(); |
| cluster.triggerBlockReports(); |
| |
| // standby nn doesn't need to invalidate blocks. |
| assertEquals(0, |
| nn2.getNamesystem().getBlockManager().getPendingDeletionBlocksCount()); |
| |
| } finally { |
| cluster.shutdown(); |
| } |
| } |
| |
| } |