| /** |
| * 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 java.io.File; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hdfs.protocol.Block; |
| import org.apache.hadoop.hdfs.protocol.DatanodeID; |
| import org.apache.hadoop.hdfs.protocol.ExtendedBlock; |
| import org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolClientSideTranslatorPB; |
| import org.apache.hadoop.hdfs.server.datanode.fsdataset.FsDatasetSpi; |
| import org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetTestUtil; |
| import org.apache.hadoop.hdfs.server.namenode.NameNode; |
| import org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration; |
| import org.apache.hadoop.hdfs.server.protocol.InterDatanodeProtocol; |
| import org.mockito.Mockito; |
| |
| import com.google.common.base.Preconditions; |
| |
| /** |
| * Utility class for accessing package-private DataNode information during tests. |
| * |
| */ |
| public class DataNodeTestUtils { |
| public static DatanodeRegistration |
| getDNRegistrationForBP(DataNode dn, String bpid) throws IOException { |
| return dn.getDNRegistrationForBP(bpid); |
| } |
| |
| public static void setHeartbeatsDisabledForTests(DataNode dn, |
| boolean heartbeatsDisabledForTests) { |
| dn.setHeartbeatsDisabledForTests(heartbeatsDisabledForTests); |
| } |
| |
| public static void triggerDeletionReport(DataNode dn) throws IOException { |
| for (BPOfferService bpos : dn.getAllBpOs()) { |
| bpos.triggerDeletionReportForTests(); |
| } |
| } |
| |
| public static void triggerHeartbeat(DataNode dn) throws IOException { |
| for (BPOfferService bpos : dn.getAllBpOs()) { |
| bpos.triggerHeartbeatForTests(); |
| } |
| } |
| |
| public static void triggerBlockReport(DataNode dn) throws IOException { |
| for (BPOfferService bpos : dn.getAllBpOs()) { |
| bpos.triggerBlockReportForTests(); |
| } |
| } |
| |
| /** |
| * 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; |
| } |
| |
| public static InterDatanodeProtocol createInterDatanodeProtocolProxy( |
| DataNode dn, DatanodeID datanodeid, final Configuration conf, |
| boolean connectToDnViaHostname) throws IOException { |
| if (connectToDnViaHostname != dn.getDnConf().connectToDnViaHostname) { |
| throw new AssertionError("Unexpected DN hostname configuration"); |
| } |
| return DataNode.createInterDataNodeProtocolProxy(datanodeid, conf, |
| dn.getDnConf().socketTimeout, dn.getDnConf().connectToDnViaHostname); |
| } |
| |
| public static void runBlockScannerForBlock(DataNode dn, ExtendedBlock b) { |
| BlockPoolSliceScanner bpScanner = getBlockPoolScanner(dn, b); |
| bpScanner.verifyBlock(new ExtendedBlock(b.getBlockPoolId(), |
| new BlockPoolSliceScanner.BlockScanInfo(b.getLocalBlock()))); |
| } |
| |
| private static BlockPoolSliceScanner getBlockPoolScanner(DataNode dn, |
| ExtendedBlock b) { |
| DataBlockScanner scanner = dn.getBlockScanner(); |
| BlockPoolSliceScanner bpScanner = scanner.getBPScanner(b.getBlockPoolId()); |
| return bpScanner; |
| } |
| |
| public static long getLatestScanTime(DataNode dn, ExtendedBlock b) { |
| BlockPoolSliceScanner scanner = getBlockPoolScanner(dn, b); |
| return scanner.getLastScanTime(b.getLocalBlock()); |
| } |
| |
| public static void shutdownBlockScanner(DataNode dn) { |
| if (dn.blockScanner != null) { |
| dn.blockScanner.shutdown(); |
| } |
| } |
| |
| /** |
| * This method is used for testing. |
| * Examples are adding and deleting blocks directly. |
| * The most common usage will be when the data node's storage is simulated. |
| * |
| * @return the fsdataset that stores the blocks |
| */ |
| public static FsDatasetSpi<?> getFSDataset(DataNode dn) { |
| return dn.getFSDataset(); |
| } |
| |
| public static File getFile(DataNode dn, String bpid, long bid) { |
| return FsDatasetTestUtil.getFile(dn.getFSDataset(), bpid, bid); |
| } |
| |
| public static File getBlockFile(DataNode dn, String bpid, Block b |
| ) throws IOException { |
| return FsDatasetTestUtil.getBlockFile(dn.getFSDataset(), bpid, b); |
| } |
| |
| public static File getMetaFile(DataNode dn, String bpid, Block b) |
| throws IOException { |
| return FsDatasetTestUtil.getMetaFile(dn.getFSDataset(), bpid, b); |
| } |
| |
| public static boolean unlinkBlock(DataNode dn, ExtendedBlock bk, int numLinks |
| ) throws IOException { |
| return FsDatasetTestUtil.unlinkBlock(dn.getFSDataset(), bk, numLinks); |
| } |
| |
| public static long getPendingAsyncDeletions(DataNode dn) { |
| return FsDatasetTestUtil.getPendingAsyncDeletions(dn.getFSDataset()); |
| } |
| |
| /** |
| * Fetch a copy of ReplicaInfo from a datanode by block id |
| * @param dn datanode to retrieve a replicainfo object from |
| * @param bpid Block pool Id |
| * @param blkId id of the replica's block |
| * @return copy of ReplicaInfo object @link{FSDataset#fetchReplicaInfo} |
| */ |
| public static ReplicaInfo fetchReplicaInfo(final DataNode dn, |
| final String bpid, final long blkId) { |
| return FsDatasetTestUtil.fetchReplicaInfo(dn.getFSDataset(), bpid, blkId); |
| } |
| } |