| /** |
| * 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 org.apache.hadoop.hdfs.AppendTestUtil; |
| import org.apache.hadoop.hdfs.DFSClient; |
| import org.apache.hadoop.hdfs.server.namenode.NameNode; |
| import org.apache.hadoop.hdfs.server.protocol.SlowDiskReports; |
| |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_BLOCK_SIZE_KEY; |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY; |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_REPLICATION_MIN_KEY; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| 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; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.InetSocketAddress; |
| import java.net.URISyntaxException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Random; |
| import java.util.concurrent.Semaphore; |
| import java.util.concurrent.ThreadLocalRandom; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| import com.google.common.collect.Iterators; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| 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.ha.HAServiceProtocol.HAServiceState; |
| 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.DatanodeInfo.DatanodeInfoBuilder; |
| 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.BlockRecoveryWorker.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.NNHAStatusHeartbeat; |
| import org.apache.hadoop.hdfs.server.protocol.NamespaceInfo; |
| import org.apache.hadoop.hdfs.server.protocol.ReplicaRecoveryInfo; |
| import org.apache.hadoop.hdfs.server.protocol.SlowPeerReports; |
| 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.AutoCloseableLock; |
| import org.apache.hadoop.test.GenericTestUtils.SleepAnswer; |
| import org.apache.hadoop.util.DataChecksum; |
| import org.apache.hadoop.util.Time; |
| import org.apache.log4j.Level; |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TestName; |
| import org.mockito.Mockito; |
| import org.mockito.invocation.InvocationOnMock; |
| import org.mockito.stubbing.Answer; |
| |
| import com.google.common.base.Supplier; |
| |
| /** |
| * 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 DataNode spyDN; |
| private BlockRecoveryWorker recoveryWorker; |
| private Configuration conf; |
| private boolean tearDownDone; |
| 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); |
| |
| @Rule |
| public TestName currentTestName = new TestName(); |
| |
| static { |
| GenericTestUtils.setLogLevel(FSNamesystem.LOG, Level.ALL); |
| GenericTestUtils.setLogLevel(LOG, Level.ALL); |
| } |
| |
| private final long |
| TEST_STOP_WORKER_XCEIVER_STOP_TIMEOUT_MILLIS = 1000000000L; |
| |
| /** |
| * Starts an instance of DataNode |
| * @throws IOException |
| */ |
| @Before |
| public void startUp() throws IOException, URISyntaxException { |
| tearDownDone = false; |
| 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"); |
| if (currentTestName.getMethodName().contains("DoesNotHoldLock")) { |
| // This test requires a very long value for the xceiver stop timeout. |
| conf.setLong(DFSConfigKeys.DFS_DATANODE_XCEIVER_STOP_TIMEOUT_MILLIS_KEY, |
| TEST_STOP_WORKER_XCEIVER_STOP_TIMEOUT_MILLIS); |
| } |
| 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), |
| Mockito.anyBoolean(), |
| Mockito.any(SlowPeerReports.class), |
| Mockito.any(SlowDiskReports.class))) |
| .thenReturn(new HeartbeatResponse( |
| new DatanodeCommand[0], |
| new NNHAStatusHeartbeat(HAServiceState.ACTIVE, 1), |
| null, ThreadLocalRandom.current().nextLong() | 1L)); |
| |
| dn = new DataNode(conf, locations, null, null) { |
| @Override |
| DatanodeProtocolClientSideTranslatorPB connectToNN( |
| InetSocketAddress nnAddr) throws IOException { |
| Assert.assertEquals(NN_ADDR, nnAddr); |
| return namenode; |
| } |
| }; |
| // Trigger a heartbeat so that it acknowledges the NN as active. |
| dn.getAllBpOs().get(0).triggerHeartbeatForTests(); |
| waitForActiveNN(); |
| |
| spyDN = spy(dn); |
| recoveryWorker = new BlockRecoveryWorker(spyDN); |
| } |
| |
| /** |
| * Wait for active NN up to 15 seconds. |
| */ |
| private void waitForActiveNN() { |
| try { |
| GenericTestUtils.waitFor(new Supplier<Boolean>() { |
| @Override |
| public Boolean get() { |
| return dn.getAllBpOs().get(0).getActiveNN() != null; |
| } |
| }, 1000, 15 * 1000); |
| } catch (TimeoutException e) { |
| // Here its not failing, will again do the assertions for activeNN after |
| // this waiting period and fails there if BPOS has not acknowledged |
| // any NN as active. |
| LOG.warn("Failed to get active NN", e); |
| } catch (InterruptedException e) { |
| LOG.warn("InterruptedException while waiting to see active NN", e); |
| } |
| Assert.assertNotNull("Failed to get ActiveNN", |
| dn.getAllBpOs().get(0).getActiveNN()); |
| } |
| |
| /** |
| * Cleans the resources and closes the instance of datanode |
| * @throws IOException if an error occurred |
| */ |
| @After |
| public void tearDown() throws IOException { |
| if (!tearDownDone && 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)); |
| } |
| tearDownDone = true; |
| } |
| } |
| |
| /** 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<BlockRecord>(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"); |
| |
| BlockRecoveryWorker.RecoveryTaskContiguous RecoveryTaskContiguous = |
| recoveryWorker.new RecoveryTaskContiguous(rBlock); |
| RecoveryTaskContiguous.syncBlock(syncList); |
| } |
| |
| /** |
| * BlockRecovery_02.8. |
| * Two replicas are in Finalized state |
| * @throws IOException in case of an error |
| */ |
| @Test(timeout=60000) |
| 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) { |
| 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(timeout=60000) |
| 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(timeout=60000) |
| 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(timeout=60000) |
| 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(timeout=60000) |
| 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(timeout=60000) |
| 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<RecoveringBlock>(1); |
| DatanodeInfo mockOtherDN = DFSTestUtil.getLocalDatanodeInfo(); |
| DatanodeInfo[] locs = new DatanodeInfo[] {new DatanodeInfoBuilder() |
| .setNodeID(dn.getDNRegistrationForBP( |
| block.getBlockPoolId())).build(), |
| 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(timeout=60000) |
| public void testRecoveryInProgressException() |
| throws IOException, InterruptedException { |
| if(LOG.isDebugEnabled()) { |
| LOG.debug("Running " + GenericTestUtils.getMethodName()); |
| } |
| doThrow(new RecoveryInProgressException("Replica recovery is in progress")). |
| when(spyDN).initReplicaRecovery(any(RecoveringBlock.class)); |
| |
| for(RecoveringBlock rBlock: initRecoveringBlocks()){ |
| BlockRecoveryWorker.RecoveryTaskContiguous RecoveryTaskContiguous = |
| recoveryWorker.new RecoveryTaskContiguous(rBlock); |
| BlockRecoveryWorker.RecoveryTaskContiguous spyTask |
| = spy(RecoveryTaskContiguous); |
| spyTask.recover(); |
| verify(spyTask, never()).syncBlock(anyListOf(BlockRecord.class)); |
| } |
| } |
| |
| /** |
| * BlockRecoveryFI_06. all datanodes throws an exception. |
| * |
| * @throws IOException |
| * in case of an error |
| */ |
| @Test(timeout=60000) |
| public void testErrorReplicas() throws IOException, InterruptedException { |
| if(LOG.isDebugEnabled()) { |
| LOG.debug("Running " + GenericTestUtils.getMethodName()); |
| } |
| doThrow(new IOException()). |
| when(spyDN).initReplicaRecovery(any(RecoveringBlock.class)); |
| |
| for(RecoveringBlock rBlock: initRecoveringBlocks()){ |
| BlockRecoveryWorker.RecoveryTaskContiguous RecoveryTaskContiguous = |
| recoveryWorker.new RecoveryTaskContiguous(rBlock); |
| BlockRecoveryWorker.RecoveryTaskContiguous spyTask = spy(RecoveryTaskContiguous); |
| try { |
| spyTask.recover(); |
| fail(); |
| } catch(IOException e){ |
| GenericTestUtils.assertExceptionContains("All datanodes failed", e); |
| } |
| verify(spyTask, never()).syncBlock(anyListOf(BlockRecord.class)); |
| } |
| } |
| |
| /** |
| * BlockRecoveryFI_07. max replica length from all DNs is zero. |
| * |
| * @throws IOException in case of an error |
| */ |
| @Test(timeout=60000) |
| public void testZeroLenReplicas() throws IOException, InterruptedException { |
| if(LOG.isDebugEnabled()) { |
| LOG.debug("Running " + GenericTestUtils.getMethodName()); |
| } |
| doReturn(new ReplicaRecoveryInfo(block.getBlockId(), 0, |
| block.getGenerationStamp(), ReplicaState.FINALIZED)).when(spyDN). |
| initReplicaRecovery(any(RecoveringBlock.class)); |
| |
| for(RecoveringBlock rBlock: initRecoveringBlocks()){ |
| BlockRecoveryWorker.RecoveryTaskContiguous RecoveryTaskContiguous = |
| recoveryWorker.new RecoveryTaskContiguous(rBlock); |
| BlockRecoveryWorker.RecoveryTaskContiguous spyTask |
| = spy(RecoveryTaskContiguous); |
| spyTask.recover(); |
| } |
| DatanodeProtocol dnP = recoveryWorker.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<BlockRecord>(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(timeout=60000) |
| public void testFailedReplicaUpdate() throws IOException { |
| if(LOG.isDebugEnabled()) { |
| LOG.debug("Running " + GenericTestUtils.getMethodName()); |
| } |
| doThrow(new IOException()).when(spyDN).updateReplicaUnderRecovery( |
| block, RECOVERY_ID, BLOCK_ID, block.getNumBytes()); |
| try { |
| BlockRecoveryWorker.RecoveryTaskContiguous RecoveryTaskContiguous = |
| recoveryWorker.new RecoveryTaskContiguous(rBlock); |
| RecoveryTaskContiguous.syncBlock(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(timeout=60000) |
| public void testNoReplicaUnderRecovery() throws IOException { |
| if(LOG.isDebugEnabled()) { |
| LOG.debug("Running " + GenericTestUtils.getMethodName()); |
| } |
| dn.data.createRbw(StorageType.DEFAULT, block, false); |
| BlockRecoveryWorker.RecoveryTaskContiguous RecoveryTaskContiguous = |
| recoveryWorker.new RecoveryTaskContiguous(rBlock); |
| try { |
| RecoveryTaskContiguous.syncBlock(initBlockRecords(dn)); |
| fail("Sync should fail"); |
| } catch (IOException e) { |
| e.getMessage().startsWith("Cannot recover "); |
| } |
| DatanodeProtocol namenode = recoveryWorker.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(timeout=60000) |
| public void testNotMatchedReplicaID() throws IOException { |
| if(LOG.isDebugEnabled()) { |
| LOG.debug("Running " + GenericTestUtils.getMethodName()); |
| } |
| ReplicaInPipelineInterface replicaInfo = dn.data.createRbw( |
| StorageType.DEFAULT, block, false).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)); |
| BlockRecoveryWorker.RecoveryTaskContiguous RecoveryTaskContiguous = |
| recoveryWorker.new RecoveryTaskContiguous(rBlock); |
| try { |
| RecoveryTaskContiguous.syncBlock(initBlockRecords(dn)); |
| fail("Sync should fail"); |
| } catch (IOException e) { |
| e.getMessage().startsWith("Cannot recover "); |
| } |
| DatanodeProtocol namenode = recoveryWorker.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); |
| try(AutoCloseableLock lock = dataNode.data.acquireDatasetLock()) { |
| 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; |
| } |
| } |
| } |
| |
| /** |
| * DNs report RUR instead of RBW, RWR or FINALIZED. Primary DN expected to |
| * throw an exception. |
| * @throws Exception |
| */ |
| @Test(timeout=60000) |
| public void testRURReplicas() throws Exception { |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("Running " + GenericTestUtils.getMethodName()); |
| } |
| |
| doReturn(new ReplicaRecoveryInfo(block.getBlockId(), block.getNumBytes(), |
| block.getGenerationStamp(), ReplicaState.RUR)).when(spyDN). |
| initReplicaRecovery(any(RecoveringBlock.class)); |
| |
| boolean exceptionThrown = false; |
| try { |
| for (RecoveringBlock rBlock : initRecoveringBlocks()) { |
| BlockRecoveryWorker.RecoveryTaskContiguous RecoveryTaskContiguous = |
| recoveryWorker.new RecoveryTaskContiguous(rBlock); |
| BlockRecoveryWorker.RecoveryTaskContiguous spyTask = |
| spy(RecoveryTaskContiguous); |
| spyTask.recover(); |
| } |
| } catch (IOException e) { |
| // expect IOException to be thrown here |
| e.printStackTrace(); |
| assertTrue("Wrong exception was thrown: " + e.getMessage(), |
| e.getMessage().contains("Found 1 replica(s) for block " + block + |
| " but none is in RWR or better state")); |
| exceptionThrown = true; |
| } finally { |
| assertTrue(exceptionThrown); |
| } |
| } |
| |
| private static class TestStopWorkerSemaphore { |
| final Semaphore sem; |
| |
| final AtomicBoolean gotInterruption = new AtomicBoolean(false); |
| |
| TestStopWorkerSemaphore() { |
| this.sem = new Semaphore(0); |
| } |
| |
| /** |
| * Attempt to acquire a sempahore within a given timeout. |
| * |
| * This is useful for unit tests where we need to ignore InterruptedException |
| * when attempting to take a semaphore, but still want to honor the overall |
| * test timeout. |
| * |
| * @param timeoutMs The timeout in miliseconds. |
| */ |
| private void uninterruptiblyAcquire(long timeoutMs) throws Exception { |
| long startTimeMs = Time.monotonicNow(); |
| while (true) { |
| long remTime = startTimeMs + timeoutMs - Time.monotonicNow(); |
| if (remTime < 0) { |
| throw new RuntimeException("Failed to acquire the semaphore within " + |
| timeoutMs + " milliseconds."); |
| } |
| try { |
| if (sem.tryAcquire(1, remTime, TimeUnit.MILLISECONDS)) { |
| return; |
| } |
| } catch (InterruptedException e) { |
| gotInterruption.set(true); |
| } |
| } |
| } |
| } |
| |
| private interface TestStopWorkerRunnable { |
| /** |
| * Return the name of the operation that this runnable performs. |
| */ |
| String opName(); |
| |
| /** |
| * Perform the operation. |
| */ |
| void run(RecoveringBlock recoveringBlock) throws Exception; |
| } |
| |
| @Test(timeout=90000) |
| public void testInitReplicaRecoveryDoesNotHoldLock() throws Exception { |
| testStopWorker(new TestStopWorkerRunnable() { |
| @Override |
| public String opName() { |
| return "initReplicaRecovery"; |
| } |
| |
| @Override |
| public void run(RecoveringBlock recoveringBlock) throws Exception { |
| try { |
| spyDN.initReplicaRecovery(recoveringBlock); |
| } catch (Exception e) { |
| if (!e.getMessage().contains("meta does not exist")) { |
| throw e; |
| } |
| } |
| } |
| }); |
| } |
| |
| @Test(timeout=90000) |
| public void testRecoverAppendDoesNotHoldLock() throws Exception { |
| testStopWorker(new TestStopWorkerRunnable() { |
| @Override |
| public String opName() { |
| return "recoverAppend"; |
| } |
| |
| @Override |
| public void run(RecoveringBlock recoveringBlock) throws Exception { |
| try { |
| ExtendedBlock extBlock = recoveringBlock.getBlock(); |
| spyDN.getFSDataset().recoverAppend(extBlock, |
| extBlock.getGenerationStamp() + 1, extBlock.getNumBytes()); |
| } catch (Exception e) { |
| if (!e.getMessage().contains( |
| "Corrupted replica ReplicaBeingWritten")) { |
| throw e; |
| } |
| } |
| } |
| }); |
| } |
| |
| @Test(timeout=90000) |
| public void testRecoverCloseDoesNotHoldLock() throws Exception { |
| testStopWorker(new TestStopWorkerRunnable() { |
| @Override |
| public String opName() { |
| return "recoverClose"; |
| } |
| |
| @Override |
| public void run(RecoveringBlock recoveringBlock) throws Exception { |
| try { |
| ExtendedBlock extBlock = recoveringBlock.getBlock(); |
| spyDN.getFSDataset().recoverClose(extBlock, |
| extBlock.getGenerationStamp() + 1, extBlock.getNumBytes()); |
| } catch (Exception e) { |
| if (!e.getMessage().contains( |
| "Corrupted replica ReplicaBeingWritten")) { |
| throw e; |
| } |
| } |
| } |
| }); |
| } |
| |
| /** |
| * Test that an FsDatasetImpl operation does not hold the lock for an |
| * unreasonable amount of time if a writer is taking a long time to stop. |
| */ |
| private void testStopWorker(final TestStopWorkerRunnable tswr) |
| throws Exception { |
| LOG.debug("Running " + currentTestName.getMethodName()); |
| // We need a long value for the data xceiver stop timeout. |
| // Otherwise the timeout will trigger, and we will not have tested that |
| // thread join was done locklessly. |
| Assert.assertEquals( |
| TEST_STOP_WORKER_XCEIVER_STOP_TIMEOUT_MILLIS, |
| dn.getDnConf().getXceiverStopTimeout()); |
| final TestStopWorkerSemaphore progressParent = |
| new TestStopWorkerSemaphore(); |
| final TestStopWorkerSemaphore terminateSlowWriter = |
| new TestStopWorkerSemaphore(); |
| final AtomicReference<String> failure = |
| new AtomicReference<String>(null); |
| Collection<RecoveringBlock> recoveringBlocks = |
| initRecoveringBlocks(); |
| final RecoveringBlock recoveringBlock = |
| Iterators.get(recoveringBlocks.iterator(), 0); |
| final ExtendedBlock block = recoveringBlock.getBlock(); |
| Thread slowWriterThread = new Thread(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| // Register this thread as the writer for the recoveringBlock. |
| LOG.debug("slowWriter creating rbw"); |
| ReplicaHandler replicaHandler = |
| spyDN.data.createRbw(StorageType.DISK, block, false); |
| replicaHandler.close(); |
| LOG.debug("slowWriter created rbw"); |
| // Tell the parent thread to start progressing. |
| progressParent.sem.release(); |
| terminateSlowWriter.uninterruptiblyAcquire(60000); |
| LOG.debug("slowWriter exiting"); |
| } catch (Throwable t) { |
| LOG.error("slowWriter got exception", t); |
| failure.compareAndSet(null, "slowWriter got exception " + |
| t.getMessage()); |
| } |
| } |
| }); |
| // Start the slow worker thread and wait for it to take ownership of the |
| // ReplicaInPipeline |
| slowWriterThread.start(); |
| progressParent.uninterruptiblyAcquire(60000); |
| |
| // Start a worker thread which will attempt to stop the writer. |
| Thread stopWriterThread = new Thread(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| LOG.debug("initiating " + tswr.opName()); |
| tswr.run(recoveringBlock); |
| LOG.debug("finished " + tswr.opName()); |
| } catch (Throwable t) { |
| LOG.error("stopWriterThread got unexpected exception for " + |
| tswr.opName(), t); |
| failure.compareAndSet(null, "stopWriterThread got unexpected " + |
| "exception for " + tswr.opName() + ": " + t.getMessage()); |
| } |
| } |
| }); |
| stopWriterThread.start(); |
| |
| while (!terminateSlowWriter.gotInterruption.get()) { |
| // Wait until stopWriterThread attempts to stop our slow writer by sending |
| // it an InterruptedException. |
| Thread.sleep(1); |
| } |
| |
| // We know that stopWriterThread is in the process of joining our slow |
| // writer. It must not hold the lock during this operation. |
| // In order to test that it does not, we attempt to do an operation that |
| // requires the lock-- getReplicaString. |
| spyDN.getFSDataset().getReplicaString( |
| recoveringBlock.getBlock().getBlockPoolId(), |
| recoveringBlock.getBlock().getBlockId()); |
| |
| // Tell the slow writer to exit, and then wait for all threads to join. |
| terminateSlowWriter.sem.release(); |
| slowWriterThread.join(); |
| stopWriterThread.join(); |
| |
| // Check that our worker threads exited cleanly. This is not checked by the |
| // unit test framework, so we have to do it manually here. |
| String failureReason = failure.get(); |
| if (failureReason != null) { |
| Assert.fail("Thread failure: " + failureReason); |
| } |
| } |
| |
| /** |
| * Test for block recovery taking longer than the heartbeat interval. |
| */ |
| @Test(timeout = 300000L) |
| public void testRecoverySlowerThanHeartbeat() throws Exception { |
| tearDown(); // Stop the Mocked DN started in startup() |
| |
| SleepAnswer delayer = new SleepAnswer(3000, 6000); |
| testRecoveryWithDatanodeDelayed(delayer); |
| } |
| |
| /** |
| * Test for block recovery timeout. All recovery attempts will be delayed |
| * and the first attempt will be lost to trigger recovery timeout and retry. |
| */ |
| @Test(timeout = 300000L) |
| public void testRecoveryTimeout() throws Exception { |
| tearDown(); // Stop the Mocked DN started in startup() |
| final Random r = new Random(); |
| |
| // Make sure first commitBlockSynchronization call from the DN gets lost |
| // for the recovery timeout to expire and new recovery attempt |
| // to be started. |
| SleepAnswer delayer = new SleepAnswer(3000) { |
| private final AtomicBoolean callRealMethod = new AtomicBoolean(); |
| |
| @Override |
| public Object answer(InvocationOnMock invocation) throws Throwable { |
| boolean interrupted = false; |
| try { |
| Thread.sleep(r.nextInt(3000) + 6000); |
| } catch (InterruptedException ie) { |
| interrupted = true; |
| } |
| try { |
| if (callRealMethod.get()) { |
| return invocation.callRealMethod(); |
| } |
| callRealMethod.set(true); |
| return null; |
| } finally { |
| if (interrupted) { |
| Thread.currentThread().interrupt(); |
| } |
| } |
| } |
| }; |
| testRecoveryWithDatanodeDelayed(delayer); |
| } |
| |
| private void testRecoveryWithDatanodeDelayed( |
| GenericTestUtils.SleepAnswer recoveryDelayer) throws Exception { |
| Configuration configuration = new HdfsConfiguration(); |
| configuration.setLong(DFSConfigKeys.DFS_HEARTBEAT_INTERVAL_KEY, 1); |
| MiniDFSCluster cluster = null; |
| |
| try { |
| cluster = new MiniDFSCluster.Builder(configuration) |
| .numDataNodes(2).build(); |
| cluster.waitActive(); |
| final FSNamesystem ns = cluster.getNamesystem(); |
| final NameNode nn = cluster.getNameNode(); |
| final DistributedFileSystem dfs = cluster.getFileSystem(); |
| cluster.setBlockRecoveryTimeout(TimeUnit.SECONDS.toMillis(15)); |
| |
| // Create a file and never close the output stream to trigger recovery |
| FSDataOutputStream out = dfs.create(new Path("/testSlowRecovery"), |
| (short) 2); |
| out.write(AppendTestUtil.randomBytes(0, 4096)); |
| out.hsync(); |
| |
| List<DataNode> dataNodes = cluster.getDataNodes(); |
| for (DataNode datanode : dataNodes) { |
| DatanodeProtocolClientSideTranslatorPB nnSpy = |
| InternalDataNodeTestUtils.spyOnBposToNN(datanode, nn); |
| |
| Mockito.doAnswer(recoveryDelayer).when(nnSpy). |
| commitBlockSynchronization( |
| Mockito.any(ExtendedBlock.class), Mockito.anyInt(), |
| Mockito.anyLong(), Mockito.anyBoolean(), |
| Mockito.anyBoolean(), Mockito.any(DatanodeID[].class), |
| Mockito.any(String[].class)); |
| } |
| |
| // Make sure hard lease expires to trigger replica recovery |
| cluster.setLeasePeriod(100L, 100L); |
| |
| // Wait for recovery to succeed |
| GenericTestUtils.waitFor(new Supplier<Boolean>() { |
| @Override |
| public Boolean get() { |
| return ns.getCompleteBlocksTotal() > 0; |
| } |
| }, 300, 300000); |
| |
| } finally { |
| if (cluster != null) { |
| cluster.shutdown(); |
| } |
| } |
| } |
| |
| /** |
| * Test that block will be recovered even if there are less than the |
| * specified minReplication datanodes involved in its recovery. |
| * |
| * Check that, after recovering, the block will be successfully replicated. |
| */ |
| @Test(timeout = 300000L) |
| public void testRecoveryWillIgnoreMinReplication() throws Exception { |
| tearDown(); // Stop the Mocked DN started in startup() |
| |
| final int blockSize = 4096; |
| final int numReplicas = 3; |
| final String filename = "/testIgnoreMinReplication"; |
| final Path filePath = new Path(filename); |
| Configuration configuration = new HdfsConfiguration(); |
| configuration.setInt(DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY, 2000); |
| configuration.setInt(DFS_NAMENODE_REPLICATION_MIN_KEY, 2); |
| configuration.setLong(DFS_BLOCK_SIZE_KEY, blockSize); |
| MiniDFSCluster cluster = null; |
| |
| try { |
| cluster = new MiniDFSCluster.Builder(configuration).numDataNodes(5) |
| .build(); |
| cluster.waitActive(); |
| final DistributedFileSystem dfs = cluster.getFileSystem(); |
| final FSNamesystem fsn = cluster.getNamesystem(); |
| |
| // Create a file and never close the output stream to trigger recovery |
| FSDataOutputStream out = dfs.create(filePath, (short) numReplicas); |
| out.write(AppendTestUtil.randomBytes(0, blockSize)); |
| out.hsync(); |
| |
| DFSClient dfsClient = new DFSClient(new InetSocketAddress("localhost", |
| cluster.getNameNodePort()), configuration); |
| LocatedBlock blk = dfsClient.getNamenode(). |
| getBlockLocations(filename, 0, blockSize). |
| getLastLocatedBlock(); |
| |
| // Kill 2 out of 3 datanodes so that only 1 alive, thus < minReplication |
| List<DatanodeInfo> dataNodes = Arrays.asList(blk.getLocations()); |
| assertEquals(dataNodes.size(), numReplicas); |
| for (DatanodeInfo dataNode : dataNodes.subList(0, numReplicas - 1)) { |
| cluster.stopDataNode(dataNode.getName()); |
| } |
| |
| GenericTestUtils.waitFor(new Supplier<Boolean>() { |
| @Override |
| public Boolean get() { |
| return fsn.getNumDeadDataNodes() == 2; |
| } |
| }, 300, 300000); |
| |
| // Make sure hard lease expires to trigger replica recovery |
| cluster.setLeasePeriod(100L, 100L); |
| |
| // Wait for recovery to succeed |
| GenericTestUtils.waitFor(new Supplier<Boolean>() { |
| @Override |
| public Boolean get() { |
| try { |
| return dfs.isFileClosed(filePath); |
| } catch (IOException e) {} |
| return false; |
| } |
| }, 300, 300000); |
| |
| // Wait for the block to be replicated |
| DFSTestUtil.waitForReplication(cluster, DFSTestUtil.getFirstBlock( |
| dfs, filePath), 1, numReplicas, 0); |
| |
| } finally { |
| if (cluster != null) { |
| cluster.shutdown(); |
| } |
| } |
| } |
| } |
