| /** |
| * 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.federation.router; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.ContentSummary; |
| import org.apache.hadoop.fs.FSDataOutputStream; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hdfs.protocol.ClientProtocol; |
| import org.apache.hadoop.hdfs.protocol.HdfsFileStatus; |
| import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext; |
| import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder; |
| import org.apache.hadoop.hdfs.server.federation.StateStoreDFSCluster; |
| import org.apache.hadoop.hdfs.server.federation.resolver.MountTableManager; |
| import org.apache.hadoop.hdfs.server.federation.resolver.MountTableResolver; |
| import org.apache.hadoop.hdfs.server.federation.resolver.RemoteLocation; |
| import org.apache.hadoop.hdfs.server.federation.resolver.RouterResolveException; |
| import org.apache.hadoop.hdfs.server.federation.store.protocol.AddMountTableEntryRequest; |
| import org.apache.hadoop.hdfs.server.federation.store.protocol.AddMountTableEntryResponse; |
| import org.apache.hadoop.hdfs.server.federation.store.protocol.GetMountTableEntriesRequest; |
| import org.apache.hadoop.hdfs.server.federation.store.protocol.GetMountTableEntriesResponse; |
| import org.apache.hadoop.hdfs.server.federation.store.protocol.RemoveMountTableEntryRequest; |
| import org.apache.hadoop.hdfs.server.federation.store.records.MountTable; |
| import org.apache.hadoop.test.LambdaTestUtils; |
| import org.junit.After; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| /** |
| * Test a router end-to-end including the MountTable without default nameservice. |
| */ |
| public class TestRouterMountTableWithoutDefaultNS { |
| private static StateStoreDFSCluster cluster; |
| private static RouterContext routerContext; |
| private static MountTableResolver mountTable; |
| private static ClientProtocol routerProtocol; |
| private static FileSystem nnFs0; |
| private static FileSystem nnFs1; |
| |
| @BeforeClass |
| public static void globalSetUp() throws Exception { |
| // Build and start a federated cluster |
| cluster = new StateStoreDFSCluster(false, 2); |
| Configuration conf = new RouterConfigBuilder() |
| .stateStore() |
| .admin() |
| .rpc() |
| .build(); |
| conf.setInt(RBFConfigKeys.DFS_ROUTER_ADMIN_MAX_COMPONENT_LENGTH_KEY, 20); |
| conf.setBoolean(RBFConfigKeys.DFS_ROUTER_DEFAULT_NAMESERVICE_ENABLE, false); |
| cluster.addRouterOverrides(conf); |
| cluster.startCluster(); |
| cluster.startRouters(); |
| cluster.waitClusterUp(); |
| |
| // Get the end points |
| nnFs0 = cluster.getNamenode("ns0", null).getFileSystem(); |
| nnFs1 = cluster.getNamenode("ns1", null).getFileSystem(); |
| routerContext = cluster.getRandomRouter(); |
| Router router = routerContext.getRouter(); |
| routerProtocol = routerContext.getClient().getNamenode(); |
| mountTable = (MountTableResolver) router.getSubclusterResolver(); |
| } |
| |
| @AfterClass |
| public static void tearDown() { |
| if (cluster != null) { |
| cluster.stopRouter(routerContext); |
| cluster.shutdown(); |
| cluster = null; |
| } |
| } |
| |
| @After |
| public void clearMountTable() throws IOException { |
| RouterClient client = routerContext.getAdminClient(); |
| MountTableManager mountTableManager = client.getMountTableManager(); |
| GetMountTableEntriesRequest req1 = GetMountTableEntriesRequest.newInstance("/"); |
| GetMountTableEntriesResponse response = mountTableManager.getMountTableEntries(req1); |
| for (MountTable entry : response.getEntries()) { |
| RemoveMountTableEntryRequest req2 = |
| RemoveMountTableEntryRequest.newInstance(entry.getSourcePath()); |
| mountTableManager.removeMountTableEntry(req2); |
| } |
| } |
| |
| /** |
| * Add a mount table entry to the mount table through the admin API. |
| * @param entry Mount table entry to add. |
| * @return If it was succesfully added. |
| * @throws IOException Problems adding entries. |
| */ |
| private boolean addMountTable(final MountTable entry) throws IOException { |
| RouterClient client = routerContext.getAdminClient(); |
| MountTableManager mountTableManager = client.getMountTableManager(); |
| AddMountTableEntryRequest addRequest = AddMountTableEntryRequest.newInstance(entry); |
| AddMountTableEntryResponse addResponse = mountTableManager.addMountTableEntry(addRequest); |
| |
| // Reload the Router cache |
| mountTable.loadCache(true); |
| |
| return addResponse.getStatus(); |
| } |
| |
| /** |
| * Verify that RBF that disable default nameservice should support |
| * get information about ancestor mount points. |
| */ |
| @Test |
| public void testGetFileInfoWithSubMountPoint() throws IOException { |
| MountTable addEntry = MountTable.newInstance("/testdir/1", |
| Collections.singletonMap("ns0", "/testdir/1")); |
| assertTrue(addMountTable(addEntry)); |
| HdfsFileStatus finfo = routerProtocol.getFileInfo("/testdir"); |
| assertNotNull(finfo); |
| assertEquals("supergroup", finfo.getGroup()); |
| assertTrue(finfo.isDirectory()); |
| } |
| |
| /** |
| * Verify that RBF doesn't support get the file information |
| * with no location and sub mount points. |
| */ |
| @Test |
| public void testGetFileInfoWithoutSubMountPoint() throws Exception { |
| MountTable addEntry = MountTable.newInstance("/testdir/1", |
| Collections.singletonMap("ns0", "/testdir/1")); |
| assertTrue(addMountTable(addEntry)); |
| LambdaTestUtils.intercept(RouterResolveException.class, |
| () -> routerContext.getRouter().getRpcServer().getFileInfo("/testdir2")); |
| } |
| |
| /** |
| * Verify that RBF that disable default nameservice should support |
| * get information about ancestor mount points. |
| */ |
| @Test |
| public void testGetContentSummaryWithSubMountPoint() throws IOException { |
| MountTable addEntry = MountTable.newInstance("/testdir/1/2", |
| Collections.singletonMap("ns0", "/testdir/1/2")); |
| assertTrue(addMountTable(addEntry)); |
| |
| try { |
| writeData(nnFs0, new Path("/testdir/1/2/3"), 10 * 1024 * 1024); |
| |
| RouterRpcServer routerRpcServer = routerContext.getRouterRpcServer(); |
| ContentSummary summaryFromRBF = routerRpcServer.getContentSummary("/testdir"); |
| assertNotNull(summaryFromRBF); |
| assertEquals(1, summaryFromRBF.getFileCount()); |
| assertEquals(10 * 1024 * 1024, summaryFromRBF.getLength()); |
| } finally { |
| nnFs0.delete(new Path("/testdir"), true); |
| } |
| } |
| |
| @Test |
| public void testGetAllLocations() throws IOException { |
| // Add mount table entry. |
| MountTable addEntry = MountTable.newInstance("/testA", |
| Collections.singletonMap("ns0", "/testA")); |
| assertTrue(addMountTable(addEntry)); |
| addEntry = MountTable.newInstance("/testA/testB", |
| Collections.singletonMap("ns1", "/testA/testB")); |
| assertTrue(addMountTable(addEntry)); |
| addEntry = MountTable.newInstance("/testA/testB/testC", |
| Collections.singletonMap("ns2", "/testA/testB/testC")); |
| assertTrue(addMountTable(addEntry)); |
| |
| RouterClientProtocol protocol = routerContext.getRouterRpcServer().getClientProtocolModule(); |
| Map<String, List<RemoteLocation>> locations = protocol.getAllLocations("/testA"); |
| assertEquals(3, locations.size()); |
| } |
| |
| @Test |
| public void testGetLocationsForContentSummary() throws Exception { |
| // Add mount table entry. |
| MountTable addEntry = MountTable.newInstance("/testA/testB", |
| Collections.singletonMap("ns0", "/testA/testB")); |
| assertTrue(addMountTable(addEntry)); |
| addEntry = MountTable.newInstance("/testA/testB/testC", |
| Collections.singletonMap("ns1", "/testA/testB/testC")); |
| assertTrue(addMountTable(addEntry)); |
| |
| RouterClientProtocol protocol = routerContext.getRouterRpcServer().getClientProtocolModule(); |
| List<RemoteLocation> locations = protocol.getLocationsForContentSummary("/testA"); |
| assertEquals(2, locations.size()); |
| |
| for (RemoteLocation location : locations) { |
| String nsId = location.getNameserviceId(); |
| if ("ns0".equals(nsId)) { |
| assertEquals("/testA/testB", location.getDest()); |
| } else if ("ns1".equals(nsId)) { |
| assertEquals("/testA/testB/testC", location.getDest()); |
| } else { |
| fail("Unexpected NS " + nsId); |
| } |
| } |
| |
| LambdaTestUtils.intercept(NoLocationException.class, |
| () -> protocol.getLocationsForContentSummary("/testB")); |
| } |
| |
| @Test |
| public void testGetContentSummary() throws Exception { |
| try { |
| // Add mount table entry. |
| MountTable addEntry = MountTable.newInstance("/testA", |
| Collections.singletonMap("ns0", "/testA")); |
| assertTrue(addMountTable(addEntry)); |
| addEntry = MountTable.newInstance("/testA/testB", |
| Collections.singletonMap("ns0", "/testA/testB")); |
| assertTrue(addMountTable(addEntry)); |
| addEntry = MountTable.newInstance("/testA/testB/testC", |
| Collections.singletonMap("ns1", "/testA/testB/testC")); |
| assertTrue(addMountTable(addEntry)); |
| |
| writeData(nnFs0, new Path("/testA/testB/file1"), 1024 * 1024); |
| writeData(nnFs1, new Path("/testA/testB/testC/file2"), 1024 * 1024); |
| writeData(nnFs1, new Path("/testA/testB/testC/file3"), 1024 * 1024); |
| |
| RouterRpcServer routerRpcServer = routerContext.getRouterRpcServer(); |
| ContentSummary summary = routerRpcServer.getContentSummary("/testA"); |
| assertEquals(3, summary.getFileCount()); |
| assertEquals(1024 * 1024 * 3, summary.getLength()); |
| |
| LambdaTestUtils.intercept(NoLocationException.class, |
| () -> routerRpcServer.getContentSummary("/testB")); |
| } finally { |
| nnFs0.delete(new Path("/testA"), true); |
| nnFs1.delete(new Path("/testA"), true); |
| } |
| } |
| |
| void writeData(FileSystem fs, Path path, int fileLength) throws IOException { |
| try (FSDataOutputStream outputStream = fs.create(path)) { |
| for (int writeSize = 0; writeSize < fileLength; writeSize++) { |
| outputStream.write(writeSize); |
| } |
| } |
| } |
| } |