| /** |
| * 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.server.protocol.SlowDiskReports; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.InetSocketAddress; |
| import java.util.ArrayList; |
| import java.util.concurrent.ThreadLocalRandom; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.FileUtil; |
| import org.apache.hadoop.ha.HAServiceProtocol.HAServiceState; |
| import org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolClientSideTranslatorPB; |
| import org.apache.hadoop.hdfs.server.namenode.NameNode; |
| import org.apache.hadoop.hdfs.server.protocol.DatanodeCommand; |
| import org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration; |
| import org.apache.hadoop.hdfs.server.protocol.HeartbeatResponse; |
| import org.apache.hadoop.hdfs.server.protocol.NNHAStatusHeartbeat; |
| import org.apache.hadoop.hdfs.server.protocol.NamespaceInfo; |
| 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.junit.Assert; |
| import org.mockito.Mockito; |
| import org.mockito.invocation.InvocationOnMock; |
| import org.mockito.stubbing.Answer; |
| |
| import com.google.common.base.Preconditions; |
| |
| /** |
| * An internal-facing only collection of test utilities for the DataNode. This |
| * is to ensure that test-scope dependencies aren't inadvertently leaked |
| * to clients, e.g. Mockito. |
| */ |
| public class InternalDataNodeTestUtils { |
| |
| public final static String TEST_CLUSTER_ID = "testClusterID"; |
| public final static String TEST_POOL_ID = "BP-TEST"; |
| |
| public static DatanodeRegistration |
| getDNRegistrationForBP(DataNode dn, String bpid) throws IOException { |
| return dn.getDNRegistrationForBP(bpid); |
| } |
| |
| /** |
| * Insert a Mockito spy object between the given DataNode and |
| * the given NameNode. This can be used to delay or wait for |
| * RPC calls on the datanode->NN path. |
| */ |
| public static DatanodeProtocolClientSideTranslatorPB spyOnBposToNN( |
| DataNode dn, NameNode nn) { |
| String bpid = nn.getNamesystem().getBlockPoolId(); |
| |
| BPOfferService bpos = null; |
| for (BPOfferService thisBpos : dn.getAllBpOs()) { |
| if (thisBpos.getBlockPoolId().equals(bpid)) { |
| bpos = thisBpos; |
| break; |
| } |
| } |
| Preconditions.checkArgument(bpos != null, |
| "No such bpid: %s", bpid); |
| |
| BPServiceActor bpsa = null; |
| for (BPServiceActor thisBpsa : bpos.getBPServiceActors()) { |
| if (thisBpsa.getNNSocketAddress().equals(nn.getServiceRpcAddress())) { |
| bpsa = thisBpsa; |
| break; |
| } |
| } |
| Preconditions.checkArgument(bpsa != null, |
| "No service actor to NN at %s", nn.getServiceRpcAddress()); |
| |
| DatanodeProtocolClientSideTranslatorPB origNN = bpsa.getNameNodeProxy(); |
| DatanodeProtocolClientSideTranslatorPB spy = Mockito.spy(origNN); |
| bpsa.setNameNode(spy); |
| return spy; |
| } |
| |
| /** |
| * Starts an instance of DataNode with NN mocked. Called should ensure to |
| * shutdown the DN |
| * |
| * @throws IOException |
| */ |
| public static DataNode startDNWithMockNN(Configuration conf, |
| final InetSocketAddress nnSocketAddr, final String dnDataDir) |
| throws IOException { |
| |
| FileSystem.setDefaultUri(conf, "hdfs://" + nnSocketAddr.getHostName() + ":" |
| + nnSocketAddr.getPort()); |
| ArrayList<StorageLocation> locations = new ArrayList<StorageLocation>(); |
| File dataDir = new File(dnDataDir); |
| 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, TEST_CLUSTER_ID, TEST_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)); |
| |
| DataNode dn = new DataNode(conf, locations, null, null) { |
| @Override |
| DatanodeProtocolClientSideTranslatorPB connectToNN( |
| InetSocketAddress nnAddr) throws IOException { |
| Assert.assertEquals(nnSocketAddr, nnAddr); |
| return namenode; |
| } |
| }; |
| // Trigger a heartbeat so that it acknowledges the NN as active. |
| dn.getAllBpOs().get(0).triggerHeartbeatForTests(); |
| |
| return dn; |
| } |
| } |