| /** |
| * 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.datanode; |
| |
| import static org.junit.Assert.assertFalse; |
| import static org.mockito.Matchers.any; |
| import static org.mockito.Matchers.anyString; |
| import static org.mockito.Mockito.atLeastOnce; |
| import static org.mockito.Mockito.times; |
| |
| import java.io.IOException; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hdfs.*; |
| import org.apache.hadoop.hdfs.protocol.Block; |
| import org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolClientSideTranslatorPB; |
| import org.apache.hadoop.hdfs.server.namenode.NameNode; |
| import org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration; |
| import org.apache.hadoop.hdfs.server.protocol.ReceivedDeletedBlockInfo; |
| import org.apache.hadoop.hdfs.server.protocol.ReceivedDeletedBlockInfo.BlockStatus; |
| |
| import org.apache.hadoop.hdfs.server.protocol.StorageReceivedDeletedBlocks; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.mockito.Mockito; |
| |
| /** |
| * Verify that incremental block reports are generated in response to |
| * block additions/deletions. |
| */ |
| public class TestIncrementalBlockReports { |
| public static final Log LOG = LogFactory.getLog(TestIncrementalBlockReports.class); |
| |
| private static final short DN_COUNT = 1; |
| private static final long DUMMY_BLOCK_ID = 5678; |
| private static final long DUMMY_BLOCK_LENGTH = 1024 * 1024; |
| private static final long DUMMY_BLOCK_GENSTAMP = 1000; |
| |
| private MiniDFSCluster cluster = null; |
| private DistributedFileSystem fs; |
| private Configuration conf; |
| private NameNode singletonNn; |
| private DataNode singletonDn; |
| private BPOfferService bpos; // BPOS to use for block injection. |
| private BPServiceActor actor; // BPSA to use for block injection. |
| private String storageUuid; // DatanodeStorage to use for block injection. |
| |
| @Before |
| public void startCluster() throws IOException { |
| conf = new HdfsConfiguration(); |
| cluster = new MiniDFSCluster.Builder(conf).numDataNodes(DN_COUNT).build(); |
| fs = cluster.getFileSystem(); |
| singletonNn = cluster.getNameNode(); |
| singletonDn = cluster.getDataNodes().get(0); |
| bpos = singletonDn.getAllBpOs()[0]; |
| actor = bpos.getBPServiceActors().get(0); |
| storageUuid = singletonDn.getFSDataset().getVolumes().get(0).getStorageID(); |
| } |
| |
| private static Block getDummyBlock() { |
| return new Block(DUMMY_BLOCK_ID, DUMMY_BLOCK_LENGTH, DUMMY_BLOCK_GENSTAMP); |
| } |
| |
| /** |
| * Inject a fake 'received' block into the BPServiceActor state. |
| */ |
| private void injectBlockReceived() { |
| ReceivedDeletedBlockInfo rdbi = new ReceivedDeletedBlockInfo( |
| getDummyBlock(), BlockStatus.RECEIVED_BLOCK, null); |
| actor.notifyNamenodeBlockImmediately(rdbi, storageUuid); |
| } |
| |
| /** |
| * Inject a fake 'deleted' block into the BPServiceActor state. |
| */ |
| private void injectBlockDeleted() { |
| ReceivedDeletedBlockInfo rdbi = new ReceivedDeletedBlockInfo( |
| getDummyBlock(), BlockStatus.DELETED_BLOCK, null); |
| actor.notifyNamenodeDeletedBlock(rdbi, storageUuid); |
| } |
| |
| /** |
| * Spy on calls from the DN to the NN. |
| * @return spy object that can be used for Mockito verification. |
| */ |
| DatanodeProtocolClientSideTranslatorPB spyOnDnCallsToNn() { |
| return DataNodeTestUtils.spyOnBposToNN(singletonDn, singletonNn); |
| } |
| |
| /** |
| * Ensure that an IBR is generated immediately for a block received by |
| * the DN. |
| * |
| * @throws InterruptedException |
| * @throws IOException |
| */ |
| @Test (timeout=60000) |
| public void testReportBlockReceived() throws InterruptedException, IOException { |
| try { |
| DatanodeProtocolClientSideTranslatorPB nnSpy = spyOnDnCallsToNn(); |
| injectBlockReceived(); |
| |
| // Sleep for a very short time, this is necessary since the IBR is |
| // generated asynchronously. |
| Thread.sleep(2000); |
| |
| // Ensure that the received block was reported immediately. |
| Mockito.verify(nnSpy, times(1)).blockReceivedAndDeleted( |
| any(DatanodeRegistration.class), |
| anyString(), |
| any(StorageReceivedDeletedBlocks[].class)); |
| } finally { |
| cluster.shutdown(); |
| cluster = null; |
| } |
| } |
| |
| /** |
| * Ensure that a delayed IBR is generated for a block deleted on the DN. |
| * |
| * @throws InterruptedException |
| * @throws IOException |
| */ |
| @Test (timeout=60000) |
| public void testReportBlockDeleted() throws InterruptedException, IOException { |
| try { |
| // Trigger a block report to reset the IBR timer. |
| DataNodeTestUtils.triggerBlockReport(singletonDn); |
| |
| // Spy on calls from the DN to the NN |
| DatanodeProtocolClientSideTranslatorPB nnSpy = spyOnDnCallsToNn(); |
| injectBlockDeleted(); |
| |
| // Sleep for a very short time since IBR is generated |
| // asynchronously. |
| Thread.sleep(2000); |
| |
| // Ensure that no block report was generated immediately. |
| // Deleted blocks are reported when the IBR timer elapses. |
| Mockito.verify(nnSpy, times(0)).blockReceivedAndDeleted( |
| any(DatanodeRegistration.class), |
| anyString(), |
| any(StorageReceivedDeletedBlocks[].class)); |
| |
| // Trigger a block report, this also triggers an IBR. |
| DataNodeTestUtils.triggerBlockReport(singletonDn); |
| Thread.sleep(2000); |
| |
| // Ensure that the deleted block is reported. |
| Mockito.verify(nnSpy, times(1)).blockReceivedAndDeleted( |
| any(DatanodeRegistration.class), |
| anyString(), |
| any(StorageReceivedDeletedBlocks[].class)); |
| |
| } finally { |
| cluster.shutdown(); |
| cluster = null; |
| } |
| } |
| |
| /** |
| * Add a received block entry and then replace it. Ensure that a single |
| * IBR is generated and that pending receive request state is cleared. |
| * This test case verifies the failure in HDFS-5922. |
| * |
| * @throws InterruptedException |
| * @throws IOException |
| */ |
| @Test (timeout=60000) |
| public void testReplaceReceivedBlock() throws InterruptedException, IOException { |
| try { |
| // Spy on calls from the DN to the NN |
| DatanodeProtocolClientSideTranslatorPB nnSpy = spyOnDnCallsToNn(); |
| injectBlockReceived(); |
| injectBlockReceived(); // Overwrite the existing entry. |
| |
| // Sleep for a very short time since IBR is generated |
| // asynchronously. |
| Thread.sleep(2000); |
| |
| // Ensure that the received block is reported. |
| Mockito.verify(nnSpy, atLeastOnce()).blockReceivedAndDeleted( |
| any(DatanodeRegistration.class), |
| anyString(), |
| any(StorageReceivedDeletedBlocks[].class)); |
| |
| // Ensure that no more IBRs are pending. |
| assertFalse(actor.hasPendingIBR()); |
| |
| } finally { |
| cluster.shutdown(); |
| cluster = null; |
| } |
| } |
| } |