| /** |
| * 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.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNotSame; |
| |
| import java.io.IOException; |
| import java.net.InetSocketAddress; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hdfs.HdfsConfiguration; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.hdfs.MiniDFSNNTopology; |
| import org.apache.hadoop.hdfs.server.common.HdfsServerConstants.StartupOption; |
| import org.apache.hadoop.hdfs.server.namenode.FSImageTestUtil; |
| import org.apache.hadoop.hdfs.server.namenode.NameNode; |
| import org.apache.hadoop.util.StringUtils; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class TestDataNodeMultipleRegistrations { |
| private static final Log LOG = |
| LogFactory.getLog(TestDataNodeMultipleRegistrations.class); |
| Configuration conf; |
| |
| @Before |
| public void setUp() throws Exception { |
| conf = new HdfsConfiguration(); |
| } |
| |
| /** |
| * start multiple NNs and single DN and verifies per BP registrations and |
| * handshakes. |
| * |
| * @throws IOException |
| */ |
| @Test |
| public void test2NNRegistration() throws IOException { |
| MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf) |
| .nnTopology(MiniDFSNNTopology.simpleFederatedTopology(2)) |
| .build(); |
| try { |
| cluster.waitActive(); |
| NameNode nn1 = cluster.getNameNode(0); |
| NameNode nn2 = cluster.getNameNode(1); |
| assertNotNull("cannot create nn1", nn1); |
| assertNotNull("cannot create nn2", nn2); |
| |
| String bpid1 = FSImageTestUtil.getFSImage(nn1).getBlockPoolID(); |
| String bpid2 = FSImageTestUtil.getFSImage(nn2).getBlockPoolID(); |
| String cid1 = FSImageTestUtil.getFSImage(nn1).getClusterID(); |
| String cid2 = FSImageTestUtil.getFSImage(nn2).getClusterID(); |
| int lv1 =FSImageTestUtil.getFSImage(nn1).getLayoutVersion(); |
| int lv2 = FSImageTestUtil.getFSImage(nn2).getLayoutVersion(); |
| int ns1 = FSImageTestUtil.getFSImage(nn1).getNamespaceID(); |
| int ns2 = FSImageTestUtil.getFSImage(nn2).getNamespaceID(); |
| assertNotSame("namespace ids should be different", ns1, ns2); |
| LOG.info("nn1: lv=" + lv1 + ";cid=" + cid1 + ";bpid=" + bpid1 + ";uri=" |
| + nn1.getNameNodeAddress()); |
| LOG.info("nn2: lv=" + lv2 + ";cid=" + cid2 + ";bpid=" + bpid2 + ";uri=" |
| + nn2.getNameNodeAddress()); |
| |
| // check number of volumes in fsdataset |
| DataNode dn = cluster.getDataNodes().get(0); |
| final Map<String, Object> volInfos = dn.data.getVolumeInfoMap(); |
| Assert.assertTrue("No volumes in the fsdataset", volInfos.size() > 0); |
| int i = 0; |
| for (Map.Entry<String, Object> e : volInfos.entrySet()) { |
| LOG.info("vol " + i++ + ") " + e.getKey() + ": " + e.getValue()); |
| } |
| // number of volumes should be 2 - [data1, data2] |
| assertEquals("number of volumes is wrong", 2, volInfos.size()); |
| |
| for (BPOfferService bpos : dn.getAllBpOs()) { |
| LOG.info("BP: " + bpos); |
| } |
| |
| BPOfferService bpos1 = dn.getAllBpOs()[0]; |
| BPOfferService bpos2 = dn.getAllBpOs()[1]; |
| |
| // The order of bpos is not guaranteed, so fix the order |
| if (getNNSocketAddress(bpos1).equals(nn2.getNameNodeAddress())) { |
| BPOfferService tmp = bpos1; |
| bpos1 = bpos2; |
| bpos2 = tmp; |
| } |
| |
| assertEquals("wrong nn address", getNNSocketAddress(bpos1), |
| nn1.getNameNodeAddress()); |
| assertEquals("wrong nn address", getNNSocketAddress(bpos2), |
| nn2.getNameNodeAddress()); |
| assertEquals("wrong bpid", bpos1.getBlockPoolId(), bpid1); |
| assertEquals("wrong bpid", bpos2.getBlockPoolId(), bpid2); |
| assertEquals("wrong cid", dn.getClusterId(), cid1); |
| assertEquals("cid should be same", cid2, cid1); |
| assertEquals("namespace should be same", |
| bpos1.bpNSInfo.namespaceID, ns1); |
| assertEquals("namespace should be same", |
| bpos2.bpNSInfo.namespaceID, ns2); |
| } finally { |
| cluster.shutdown(); |
| } |
| } |
| |
| private static InetSocketAddress getNNSocketAddress(BPOfferService bpos) { |
| List<BPServiceActor> actors = bpos.getBPServiceActors(); |
| assertEquals(1, actors.size()); |
| return actors.get(0).getNNSocketAddress(); |
| } |
| |
| /** |
| * starts single nn and single dn and verifies registration and handshake |
| * |
| * @throws IOException |
| */ |
| @Test |
| public void testFedSingleNN() throws IOException { |
| MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf) |
| .nameNodePort(9927).build(); |
| try { |
| NameNode nn1 = cluster.getNameNode(); |
| assertNotNull("cannot create nn1", nn1); |
| |
| String bpid1 = FSImageTestUtil.getFSImage(nn1).getBlockPoolID(); |
| String cid1 = FSImageTestUtil.getFSImage(nn1).getClusterID(); |
| int lv1 = FSImageTestUtil.getFSImage(nn1).getLayoutVersion(); |
| LOG.info("nn1: lv=" + lv1 + ";cid=" + cid1 + ";bpid=" + bpid1 + ";uri=" |
| + nn1.getNameNodeAddress()); |
| |
| // check number of vlumes in fsdataset |
| DataNode dn = cluster.getDataNodes().get(0); |
| final Map<String, Object> volInfos = dn.data.getVolumeInfoMap(); |
| Assert.assertTrue("No volumes in the fsdataset", volInfos.size() > 0); |
| int i = 0; |
| for (Map.Entry<String, Object> e : volInfos.entrySet()) { |
| LOG.info("vol " + i++ + ") " + e.getKey() + ": " + e.getValue()); |
| } |
| // number of volumes should be 2 - [data1, data2] |
| assertEquals("number of volumes is wrong", 2, volInfos.size()); |
| |
| for (BPOfferService bpos : dn.getAllBpOs()) { |
| LOG.info("reg: bpid=" + "; name=" + bpos.bpRegistration + "; sid=" |
| + bpos.bpRegistration.getStorageID() + "; nna=" + |
| getNNSocketAddress(bpos)); |
| } |
| |
| // try block report |
| BPOfferService bpos1 = dn.getAllBpOs()[0]; |
| bpos1.triggerBlockReportForTests(); |
| |
| assertEquals("wrong nn address", |
| getNNSocketAddress(bpos1), |
| nn1.getNameNodeAddress()); |
| assertEquals("wrong bpid", bpos1.getBlockPoolId(), bpid1); |
| assertEquals("wrong cid", dn.getClusterId(), cid1); |
| cluster.shutdown(); |
| |
| // Ensure all the BPOfferService threads are shutdown |
| assertEquals(0, dn.getAllBpOs().length); |
| cluster = null; |
| } finally { |
| if (cluster != null) { |
| cluster.shutdown(); |
| } |
| } |
| } |
| |
| @Test |
| public void testClusterIdMismatch() throws IOException { |
| MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf) |
| .nnTopology(MiniDFSNNTopology.simpleFederatedTopology(2)) |
| .build(); |
| try { |
| cluster.waitActive(); |
| |
| DataNode dn = cluster.getDataNodes().get(0); |
| BPOfferService [] bposs = dn.getAllBpOs(); |
| LOG.info("dn bpos len (should be 2):" + bposs.length); |
| Assert.assertEquals("should've registered with two namenodes", bposs.length,2); |
| |
| // add another namenode |
| cluster.addNameNode(conf, 9938); |
| bposs = dn.getAllBpOs(); |
| LOG.info("dn bpos len (should be 3):" + bposs.length); |
| Assert.assertEquals("should've registered with three namenodes", bposs.length,3); |
| |
| // change cluster id and another Namenode |
| StartupOption.FORMAT.setClusterId("DifferentCID"); |
| cluster.addNameNode(conf, 9948); |
| NameNode nn4 = cluster.getNameNode(3); |
| assertNotNull("cannot create nn4", nn4); |
| |
| bposs = dn.getAllBpOs(); |
| LOG.info("dn bpos len (still should be 3):" + bposs.length); |
| Assert.assertEquals("should've registered with three namenodes", 3, bposs.length); |
| } finally { |
| cluster.shutdown(); |
| } |
| } |
| |
| @Test |
| public void testMiniDFSClusterWithMultipleNN() throws IOException { |
| Configuration conf = new HdfsConfiguration(); |
| // start Federated cluster and add a node. |
| MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf) |
| .nnTopology(MiniDFSNNTopology.simpleFederatedTopology(2)) |
| .build(); |
| |
| // add a node |
| try { |
| Assert.assertNotNull(cluster); |
| cluster.waitActive(); |
| Assert.assertEquals("(1)Should be 2 namenodes", 2, cluster.getNumNameNodes()); |
| |
| cluster.addNameNode(conf, 0); |
| Assert.assertEquals("(1)Should be 3 namenodes", 3, cluster.getNumNameNodes()); |
| } catch (IOException ioe) { |
| Assert.fail("Failed to add NN to cluster:" + StringUtils.stringifyException(ioe)); |
| } finally { |
| cluster.shutdown(); |
| } |
| |
| // 2. start with Federation flag set |
| conf = new HdfsConfiguration(); |
| cluster = new MiniDFSCluster.Builder(conf) |
| .nnTopology(MiniDFSNNTopology.simpleFederatedTopology(1)) |
| .build(); |
| |
| try { |
| Assert.assertNotNull(cluster); |
| cluster.waitActive(); |
| Assert.assertEquals("(2)Should be 1 namenodes", 1, cluster.getNumNameNodes()); |
| |
| // add a node |
| cluster.addNameNode(conf, 0); |
| Assert.assertEquals("(2)Should be 2 namenodes", 2, cluster.getNumNameNodes()); |
| } catch (IOException ioe) { |
| Assert.fail("Failed to add NN to cluster:" + StringUtils.stringifyException(ioe)); |
| } finally { |
| cluster.shutdown(); |
| } |
| |
| // 3. start non-federated |
| conf = new HdfsConfiguration(); |
| cluster = new MiniDFSCluster.Builder(conf).build(); |
| |
| // add a node |
| try { |
| cluster.waitActive(); |
| Assert.assertNotNull(cluster); |
| Assert.assertEquals("(2)Should be 1 namenodes", 1, cluster.getNumNameNodes()); |
| |
| cluster.addNameNode(conf, 9929); |
| Assert.fail("shouldn't be able to add another NN to non federated cluster"); |
| } catch (IOException e) { |
| // correct |
| Assert.assertTrue(e.getMessage().startsWith("cannot add namenode")); |
| Assert.assertEquals("(3)Should be 1 namenodes", 1, cluster.getNumNameNodes()); |
| } finally { |
| cluster.shutdown(); |
| } |
| } |
| } |