Java tutorial
/** * 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 * <p/> * http://www.apache.org/licenses/LICENSE-2.0 * <p/> * 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 io.hops.leader_election.node.ActiveNode; import io.hops.leader_election.node.ActiveNodePBImpl; import io.hops.leader_election.node.SortedActiveNodeList; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.commons.logging.impl.Log4JLogger; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.CommonConfigurationKeys; import org.apache.hadoop.fs.FSDataOutputStream; import org.apache.hadoop.fs.FileSystem; import org.apache.hadoop.fs.FileUtil; import org.apache.hadoop.fs.Path; import org.apache.hadoop.fs.StorageType; import org.apache.hadoop.hdfs.DFSConfigKeys; import org.apache.hadoop.hdfs.DFSTestUtil; import org.apache.hadoop.hdfs.DistributedFileSystem; import org.apache.hadoop.hdfs.HdfsConfiguration; import org.apache.hadoop.hdfs.MiniDFSCluster; import org.apache.hadoop.hdfs.protocol.DatanodeID; import org.apache.hadoop.hdfs.protocol.DatanodeInfo; import org.apache.hadoop.hdfs.protocol.ExtendedBlock; import org.apache.hadoop.hdfs.protocol.LocatedBlock; import org.apache.hadoop.hdfs.protocol.RecoveryInProgressException; import org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolClientSideTranslatorPB; import org.apache.hadoop.hdfs.server.common.HdfsServerConstants.ReplicaState; import org.apache.hadoop.hdfs.server.datanode.DataNode.BlockRecord; import org.apache.hadoop.hdfs.server.datanode.fsdataset.ReplicaOutputStreams; import org.apache.hadoop.hdfs.server.namenode.FSNamesystem; import org.apache.hadoop.hdfs.server.protocol.BlockRecoveryCommand.RecoveringBlock; import org.apache.hadoop.hdfs.server.protocol.DatanodeCommand; import org.apache.hadoop.hdfs.server.protocol.DatanodeProtocol; import org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration; import org.apache.hadoop.hdfs.server.protocol.HeartbeatResponse; import org.apache.hadoop.hdfs.server.protocol.InterDatanodeProtocol; import org.apache.hadoop.hdfs.server.protocol.NamespaceInfo; import org.apache.hadoop.hdfs.server.protocol.ReplicaRecoveryInfo; import org.apache.hadoop.hdfs.server.protocol.StorageReport; import org.apache.hadoop.hdfs.server.protocol.VolumeFailureSummary; import org.apache.hadoop.test.GenericTestUtils; import org.apache.hadoop.util.Daemon; import org.apache.hadoop.util.DataChecksum; import org.apache.log4j.Level; import org.junit.After; import org.junit.Assert; import org.junit.Before; import org.junit.Test; import org.mockito.Mockito; import org.mockito.invocation.InvocationOnMock; import org.mockito.stubbing.Answer; import java.io.File; import java.io.IOException; import java.net.InetSocketAddress; import java.net.URISyntaxException; import java.util.ArrayList; import java.util.Collection; import java.util.List; import java.util.concurrent.atomic.AtomicBoolean; import static org.junit.Assert.fail; import static org.mockito.Matchers.any; import static org.mockito.Matchers.anyBoolean; import static org.mockito.Matchers.anyListOf; import static org.mockito.Matchers.anyLong; import static org.mockito.Matchers.anyObject; import static org.mockito.Mockito.doReturn; import static org.mockito.Mockito.doThrow; import static org.mockito.Mockito.mock; import static org.mockito.Mockito.never; import static org.mockito.Mockito.spy; import static org.mockito.Mockito.verify; import static org.mockito.Mockito.when; /** * This tests if sync all replicas in block recovery works correctly */ public class TestBlockRecovery { private static final Log LOG = LogFactory.getLog(TestBlockRecovery.class); private static final String DATA_DIR = MiniDFSCluster.getBaseDirectory() + "data"; private DataNode dn; private Configuration conf; private final static long RECOVERY_ID = 3000L; private final static String CLUSTER_ID = "testClusterID"; private final static String POOL_ID = "BP-TEST"; private final static InetSocketAddress NN_ADDR = new InetSocketAddress("localhost", 5020); private final static long BLOCK_ID = 1000L; private final static long GEN_STAMP = 2000L; private final static long BLOCK_LEN = 3000L; private final static long REPLICA_LEN1 = 6000L; private final static long REPLICA_LEN2 = 5000L; private final static ExtendedBlock block = new ExtendedBlock(POOL_ID, BLOCK_ID, BLOCK_LEN, GEN_STAMP); static { ((Log4JLogger) LogFactory.getLog(FSNamesystem.class)).getLogger().setLevel(Level.ALL); ((Log4JLogger) LOG).getLogger().setLevel(Level.ALL); } /** * Starts an instance of DataNode * * @throws IOException */ @Before public void startUp() throws IOException, URISyntaxException { conf = new HdfsConfiguration(); conf.set(DFSConfigKeys.DFS_DATANODE_DATA_DIR_KEY, DATA_DIR); conf.set(DFSConfigKeys.DFS_DATANODE_ADDRESS_KEY, "0.0.0.0:0"); conf.set(DFSConfigKeys.DFS_DATANODE_HTTP_ADDRESS_KEY, "0.0.0.0:0"); conf.set(DFSConfigKeys.DFS_DATANODE_IPC_ADDRESS_KEY, "0.0.0.0:0"); conf.setInt(CommonConfigurationKeys.IPC_CLIENT_CONNECT_MAX_RETRIES_KEY, 0); FileSystem.setDefaultUri(conf, "hdfs://" + NN_ADDR.getHostName() + ":" + NN_ADDR.getPort()); ArrayList<StorageLocation> locations = new ArrayList<StorageLocation>(); File dataDir = new File(DATA_DIR); FileUtil.fullyDelete(dataDir); dataDir.mkdirs(); StorageLocation location = StorageLocation.parse(dataDir.getPath()); locations.add(location); final DatanodeProtocolClientSideTranslatorPB namenode = mock(DatanodeProtocolClientSideTranslatorPB.class); Mockito.doAnswer(new Answer<DatanodeRegistration>() { @Override public DatanodeRegistration answer(InvocationOnMock invocation) throws Throwable { return (DatanodeRegistration) invocation.getArguments()[0]; } }).when(namenode).registerDatanode(Mockito.any(DatanodeRegistration.class)); when(namenode.versionRequest()).thenReturn(new NamespaceInfo(1, CLUSTER_ID, POOL_ID, 1L)); when(namenode.sendHeartbeat(Mockito.any(DatanodeRegistration.class), Mockito.any(StorageReport[].class), Mockito.anyLong(), Mockito.anyLong(), Mockito.anyInt(), Mockito.anyInt(), Mockito.anyInt(), Mockito.any(VolumeFailureSummary.class))) .thenReturn(new HeartbeatResponse(new DatanodeCommand[0], null)); when(namenode.getActiveNamenodes()).thenReturn(new SortedActiveNodeList() { @Override public boolean isEmpty() { return false; } @Override public int size() { return 1; } @Override public List<ActiveNode> getActiveNodes() { return getList(); } @Override public List<ActiveNode> getSortedActiveNodes() { return getList(); } @Override public ActiveNode getActiveNode(InetSocketAddress address) { throw new UnsupportedOperationException("Not Implemented Yet"); } @Override public ActiveNode getLeader() { return getList().get(0); } }); dn = new DataNode(conf, locations, null) { @Override DatanodeProtocolClientSideTranslatorPB connectToNN(InetSocketAddress nnAddr) throws IOException { Assert.assertEquals(NN_ADDR, nnAddr); return namenode; } @Override public DatanodeProtocolClientSideTranslatorPB getActiveNamenodeForBP(String bpid) throws IOException { return namenode; } }; BPOfferService bpos = dn.getAllBpOs().get(0); BPServiceActor bpsa = bpos.getBPServiceActors().get(0); bpsa.bpNamenode = namenode; NamespaceInfo nsInfo = bpsa.retrieveNamespaceInfo(); bpos.verifyAndSetNamespaceInfo(nsInfo); bpos.bpRegistration = bpos.createRegistration(); // Trigger a heartbeat so that it acknowledges the NN as active. dn.getAllBpOs().get(0).triggerHeartbeatForTests(); } public List<ActiveNode> getList() { List<ActiveNode> list = new ArrayList<ActiveNode>(); ActiveNode an = new ActiveNodePBImpl(0, NN_ADDR.getHostName(), NN_ADDR.getHostName(), NN_ADDR.getPort(), NN_ADDR.getHostName() + ":" + NN_ADDR.getPort(), NN_ADDR.getHostName(), NN_ADDR.getPort()); list.add(an); return list; } /** * Cleans the resources and closes the instance of datanode * * @throws IOException * if an error occurred */ @After public void tearDown() throws IOException { if (dn != null) { try { dn.shutdown(); } catch (Exception e) { LOG.error("Cannot close: ", e); } finally { File dir = new File(DATA_DIR); if (dir.exists()) { Assert.assertTrue("Cannot delete data-node dirs", FileUtil.fullyDelete(dir)); } } } } /** * Sync two replicas */ private void testSyncReplicas(ReplicaRecoveryInfo replica1, ReplicaRecoveryInfo replica2, InterDatanodeProtocol dn1, InterDatanodeProtocol dn2, long expectLen) throws IOException { DatanodeInfo[] locs = new DatanodeInfo[] { mock(DatanodeInfo.class), mock(DatanodeInfo.class) }; RecoveringBlock rBlock = new RecoveringBlock(block, locs, RECOVERY_ID); ArrayList<BlockRecord> syncList = new ArrayList<>(2); BlockRecord record1 = new BlockRecord(DFSTestUtil.getDatanodeInfo("1.2.3.4", "bogus", 1234), dn1, replica1); BlockRecord record2 = new BlockRecord(DFSTestUtil.getDatanodeInfo("1.2.3.4", "bogus", 1234), dn2, replica2); syncList.add(record1); syncList.add(record2); when(dn1.updateReplicaUnderRecovery((ExtendedBlock) anyObject(), anyLong(), anyLong(), anyLong())) .thenReturn("storage1"); when(dn2.updateReplicaUnderRecovery((ExtendedBlock) anyObject(), anyLong(), anyLong(), anyLong())) .thenReturn("storage2"); dn.syncBlock(rBlock, syncList); } /** * BlockRecovery_02.8. * Two replicas are in Finalized state * * @throws IOException * in case of an error */ @Test public void testFinalizedReplicas() throws IOException { if (LOG.isDebugEnabled()) { LOG.debug("Running " + GenericTestUtils.getMethodName()); } ReplicaRecoveryInfo replica1 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN1, GEN_STAMP - 1, ReplicaState.FINALIZED); ReplicaRecoveryInfo replica2 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN1, GEN_STAMP - 2, ReplicaState.FINALIZED); InterDatanodeProtocol dn1 = mock(InterDatanodeProtocol.class); InterDatanodeProtocol dn2 = mock(InterDatanodeProtocol.class); testSyncReplicas(replica1, replica2, dn1, dn2, REPLICA_LEN1); verify(dn1).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, REPLICA_LEN1); verify(dn2).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, REPLICA_LEN1); // two finalized replicas have different length replica1 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN1, GEN_STAMP - 1, ReplicaState.FINALIZED); replica2 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN2, GEN_STAMP - 2, ReplicaState.FINALIZED); try { testSyncReplicas(replica1, replica2, dn1, dn2, REPLICA_LEN1); Assert.fail("Two finalized replicas should not have different lengthes!"); } catch (IOException e) { e.printStackTrace(); Assert.assertTrue(e.getMessage().startsWith("Inconsistent size of finalized replicas. ")); } } /** * BlockRecovery_02.9. * One replica is Finalized and another is RBW. * * @throws IOException * in case of an error */ @Test public void testFinalizedRbwReplicas() throws IOException { if (LOG.isDebugEnabled()) { LOG.debug("Running " + GenericTestUtils.getMethodName()); } // rbw and finalized replicas have the same length ReplicaRecoveryInfo replica1 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN1, GEN_STAMP - 1, ReplicaState.FINALIZED); ReplicaRecoveryInfo replica2 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN1, GEN_STAMP - 2, ReplicaState.RBW); InterDatanodeProtocol dn1 = mock(InterDatanodeProtocol.class); InterDatanodeProtocol dn2 = mock(InterDatanodeProtocol.class); testSyncReplicas(replica1, replica2, dn1, dn2, REPLICA_LEN1); verify(dn1).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, REPLICA_LEN1); verify(dn2).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, REPLICA_LEN1); // rbw replica has a different length from the finalized one replica1 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN1, GEN_STAMP - 1, ReplicaState.FINALIZED); replica2 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN2, GEN_STAMP - 2, ReplicaState.RBW); dn1 = mock(InterDatanodeProtocol.class); dn2 = mock(InterDatanodeProtocol.class); testSyncReplicas(replica1, replica2, dn1, dn2, REPLICA_LEN1); verify(dn1).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, REPLICA_LEN1); verify(dn2, never()).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, REPLICA_LEN1); } /** * BlockRecovery_02.10. * One replica is Finalized and another is RWR. * * @throws IOException * in case of an error */ @Test public void testFinalizedRwrReplicas() throws IOException { if (LOG.isDebugEnabled()) { LOG.debug("Running " + GenericTestUtils.getMethodName()); } // rbw and finalized replicas have the same length ReplicaRecoveryInfo replica1 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN1, GEN_STAMP - 1, ReplicaState.FINALIZED); ReplicaRecoveryInfo replica2 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN1, GEN_STAMP - 2, ReplicaState.RWR); InterDatanodeProtocol dn1 = mock(InterDatanodeProtocol.class); InterDatanodeProtocol dn2 = mock(InterDatanodeProtocol.class); testSyncReplicas(replica1, replica2, dn1, dn2, REPLICA_LEN1); verify(dn1).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, REPLICA_LEN1); verify(dn2, never()).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, REPLICA_LEN1); // rbw replica has a different length from the finalized one replica1 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN1, GEN_STAMP - 1, ReplicaState.FINALIZED); replica2 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN2, GEN_STAMP - 2, ReplicaState.RBW); dn1 = mock(InterDatanodeProtocol.class); dn2 = mock(InterDatanodeProtocol.class); testSyncReplicas(replica1, replica2, dn1, dn2, REPLICA_LEN1); verify(dn1).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, REPLICA_LEN1); verify(dn2, never()).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, REPLICA_LEN1); } /** * BlockRecovery_02.11. * Two replicas are RBW. * * @throws IOException * in case of an error */ @Test public void testRBWReplicas() throws IOException { if (LOG.isDebugEnabled()) { LOG.debug("Running " + GenericTestUtils.getMethodName()); } ReplicaRecoveryInfo replica1 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN1, GEN_STAMP - 1, ReplicaState.RBW); ReplicaRecoveryInfo replica2 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN2, GEN_STAMP - 2, ReplicaState.RBW); InterDatanodeProtocol dn1 = mock(InterDatanodeProtocol.class); InterDatanodeProtocol dn2 = mock(InterDatanodeProtocol.class); long minLen = Math.min(REPLICA_LEN1, REPLICA_LEN2); testSyncReplicas(replica1, replica2, dn1, dn2, minLen); verify(dn1).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, minLen); verify(dn2).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, minLen); } /** * BlockRecovery_02.12. * One replica is RBW and another is RWR. * * @throws IOException * in case of an error */ @Test public void testRBW_RWRReplicas() throws IOException { if (LOG.isDebugEnabled()) { LOG.debug("Running " + GenericTestUtils.getMethodName()); } ReplicaRecoveryInfo replica1 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN1, GEN_STAMP - 1, ReplicaState.RBW); ReplicaRecoveryInfo replica2 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN1, GEN_STAMP - 2, ReplicaState.RWR); InterDatanodeProtocol dn1 = mock(InterDatanodeProtocol.class); InterDatanodeProtocol dn2 = mock(InterDatanodeProtocol.class); testSyncReplicas(replica1, replica2, dn1, dn2, REPLICA_LEN1); verify(dn1).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, REPLICA_LEN1); verify(dn2, never()).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, REPLICA_LEN1); } /** * BlockRecovery_02.13. * Two replicas are RWR. * * @throws IOException * in case of an error */ @Test public void testRWRReplicas() throws IOException { if (LOG.isDebugEnabled()) { LOG.debug("Running " + GenericTestUtils.getMethodName()); } ReplicaRecoveryInfo replica1 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN1, GEN_STAMP - 1, ReplicaState.RWR); ReplicaRecoveryInfo replica2 = new ReplicaRecoveryInfo(BLOCK_ID, REPLICA_LEN2, GEN_STAMP - 2, ReplicaState.RWR); InterDatanodeProtocol dn1 = mock(InterDatanodeProtocol.class); InterDatanodeProtocol dn2 = mock(InterDatanodeProtocol.class); long minLen = Math.min(REPLICA_LEN1, REPLICA_LEN2); testSyncReplicas(replica1, replica2, dn1, dn2, minLen); verify(dn1).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, minLen); verify(dn2).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, minLen); } private Collection<RecoveringBlock> initRecoveringBlocks() throws IOException { Collection<RecoveringBlock> blocks = new ArrayList<>(1); DatanodeInfo mockOtherDN = DFSTestUtil.getLocalDatanodeInfo(); DatanodeInfo[] locs = new DatanodeInfo[] { new DatanodeInfo(dn.getDNRegistrationForBP(block.getBlockPoolId())), mockOtherDN }; RecoveringBlock rBlock = new RecoveringBlock(block, locs, RECOVERY_ID); blocks.add(rBlock); return blocks; } /** * BlockRecoveryFI_05. One DN throws RecoveryInProgressException. * * @throws IOException * in case of an error */ @Test public void testRecoveryInProgressException() throws IOException, InterruptedException { if (LOG.isDebugEnabled()) { LOG.debug("Running " + GenericTestUtils.getMethodName()); } try { DataNode spyDN = spy(dn); doThrow(new RecoveryInProgressException("Replica recovery is in progress")).when(spyDN) .initReplicaRecovery(any(RecoveringBlock.class)); Daemon d = spyDN.recoverBlocks("fake NN", initRecoveringBlocks()); d.join(); verify(spyDN, never()).syncBlock(any(RecoveringBlock.class), anyListOf(BlockRecord.class)); } catch (Exception e) { e.printStackTrace(); } } /** * BlockRecoveryFI_06. all datanodes throws an exception. * * @throws IOException * in case of an error */ @Test public void testErrorReplicas() throws IOException, InterruptedException { if (LOG.isDebugEnabled()) { LOG.debug("Running " + GenericTestUtils.getMethodName()); } DataNode spyDN = spy(dn); doThrow(new IOException()).when(spyDN).initReplicaRecovery(any(RecoveringBlock.class)); Daemon d = spyDN.recoverBlocks("fake NN", initRecoveringBlocks()); d.join(); verify(spyDN, never()).syncBlock(any(RecoveringBlock.class), anyListOf(BlockRecord.class)); } /** * BlockRecoveryFI_07. max replica length from all DNs is zero. * * @throws IOException * in case of an error */ @Test public void testZeroLenReplicas() throws IOException, InterruptedException { if (LOG.isDebugEnabled()) { LOG.debug("Running " + GenericTestUtils.getMethodName()); } DataNode spyDN = spy(dn); doReturn(new ReplicaRecoveryInfo(block.getBlockId(), 0, block.getGenerationStamp(), ReplicaState.FINALIZED)) .when(spyDN).initReplicaRecovery(any(RecoveringBlock.class)); Daemon d = spyDN.recoverBlocks("fake NN", initRecoveringBlocks()); d.join(); DatanodeProtocol dnP = dn.getActiveNamenodeForBP(POOL_ID); verify(dnP).commitBlockSynchronization(block, RECOVERY_ID, 0, true, true, DatanodeID.EMPTY_ARRAY, null); } private List<BlockRecord> initBlockRecords(DataNode spyDN) throws IOException { List<BlockRecord> blocks = new ArrayList<>(1); DatanodeRegistration dnR = dn.getDNRegistrationForBP(block.getBlockPoolId()); BlockRecord blockRecord = new BlockRecord(new DatanodeID(dnR), spyDN, new ReplicaRecoveryInfo( block.getBlockId(), block.getNumBytes(), block.getGenerationStamp(), ReplicaState.FINALIZED)); blocks.add(blockRecord); return blocks; } private final static RecoveringBlock rBlock = new RecoveringBlock(block, null, RECOVERY_ID); /** * BlockRecoveryFI_09. some/all DNs failed to update replicas. * * @throws IOException * in case of an error */ @Test public void testFailedReplicaUpdate() throws IOException { if (LOG.isDebugEnabled()) { LOG.debug("Running " + GenericTestUtils.getMethodName()); } DataNode spyDN = spy(dn); doThrow(new IOException()).when(spyDN).updateReplicaUnderRecovery(block, RECOVERY_ID, BLOCK_ID, block.getNumBytes()); try { spyDN.syncBlock(rBlock, initBlockRecords(spyDN)); fail("Sync should fail"); } catch (IOException e) { e.getMessage().startsWith("Cannot recover "); } } /** * BlockRecoveryFI_10. DN has no ReplicaUnderRecovery. * * @throws IOException * in case of an error */ @Test public void testNoReplicaUnderRecovery() throws IOException { if (LOG.isDebugEnabled()) { LOG.debug("Running " + GenericTestUtils.getMethodName()); } dn.data.createRbw(StorageType.DEFAULT, block); try { dn.syncBlock(rBlock, initBlockRecords(dn)); fail("Sync should fail"); } catch (IOException e) { e.getMessage().startsWith("Cannot recover "); } DatanodeProtocol namenode = dn.getActiveNamenodeForBP(POOL_ID); verify(namenode, never()).commitBlockSynchronization(any(ExtendedBlock.class), anyLong(), anyLong(), anyBoolean(), anyBoolean(), any(DatanodeID[].class), any(String[].class)); } /** * BlockRecoveryFI_11. a replica's recovery id does not match new GS. * * @throws IOException * in case of an error */ @Test public void testNotMatchedReplicaID() throws IOException { if (LOG.isDebugEnabled()) { LOG.debug("Running " + GenericTestUtils.getMethodName()); } ReplicaInPipelineInterface replicaInfo = dn.data.createRbw(StorageType.DEFAULT, block).getReplica(); ReplicaOutputStreams streams = null; try { streams = replicaInfo.createStreams(true, DataChecksum.newDataChecksum(DataChecksum.Type.CRC32, 512)); streams.getChecksumOut().write('a'); dn.data.initReplicaRecovery(new RecoveringBlock(block, null, RECOVERY_ID + 1)); try { dn.syncBlock(rBlock, initBlockRecords(dn)); fail("Sync should fail"); } catch (IOException e) { e.getMessage().startsWith("Cannot recover "); } DatanodeProtocol namenode = dn.getActiveNamenodeForBP(POOL_ID); verify(namenode, never()).commitBlockSynchronization(any(ExtendedBlock.class), anyLong(), anyLong(), anyBoolean(), anyBoolean(), any(DatanodeID[].class), any(String[].class)); } finally { streams.close(); } } /** * Test to verify the race between finalizeBlock and Lease recovery * * @throws Exception */ @Test(timeout = 20000) public void testRaceBetweenReplicaRecoveryAndFinalizeBlock() throws Exception { tearDown();// Stop the Mocked DN started in startup() Configuration conf = new HdfsConfiguration(); conf.set(DFSConfigKeys.DFS_DATANODE_XCEIVER_STOP_TIMEOUT_MILLIS_KEY, "1000"); MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).numDataNodes(1).build(); try { cluster.waitClusterUp(); DistributedFileSystem fs = cluster.getFileSystem(); Path path = new Path("/test"); FSDataOutputStream out = fs.create(path); out.writeBytes("data"); out.hsync(); List<LocatedBlock> blocks = DFSTestUtil.getAllBlocks(fs.open(path)); final LocatedBlock block = blocks.get(0); final DataNode dataNode = cluster.getDataNodes().get(0); final AtomicBoolean recoveryInitResult = new AtomicBoolean(true); Thread recoveryThread = new Thread() { @Override public void run() { try { DatanodeInfo[] locations = block.getLocations(); final RecoveringBlock recoveringBlock = new RecoveringBlock(block.getBlock(), locations, block.getBlock().getGenerationStamp() + 1); synchronized (dataNode.data) { Thread.sleep(2000); dataNode.initReplicaRecovery(recoveringBlock); } } catch (Exception e) { recoveryInitResult.set(false); } } }; recoveryThread.start(); try { out.close(); } catch (IOException e) { Assert.assertTrue("Writing should fail", e.getMessage().contains("are bad. Aborting...")); } finally { recoveryThread.join(); } Assert.assertTrue("Recovery should be initiated successfully", recoveryInitResult.get()); dataNode.updateReplicaUnderRecovery(block.getBlock(), block.getBlock().getGenerationStamp() + 1, block.getBlock().getBlockId(), block.getBlockSize()); } finally { if (null != cluster) { cluster.shutdown(); cluster = null; } } } }