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Posted to common-commits@hadoop.apache.org by in...@apache.org on 2017/09/01 02:41:39 UTC
[72/73] [abbrv] hadoop git commit: HDFS-10646. Federation admin tool.
Contributed by Inigo Goiri.
http://git-wip-us.apache.org/repos/asf/hadoop/blob/485c7b93/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterAdmin.java
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diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterAdmin.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterAdmin.java
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+/**
+ * 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 static org.apache.hadoop.hdfs.server.federation.store.FederationStateStoreTestUtils.synchronizeRecords;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.List;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder;
+import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.RouterContext;
+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.RemoteLocation;
+import org.apache.hadoop.hdfs.server.federation.store.StateStoreService;
+import org.apache.hadoop.hdfs.server.federation.store.impl.MountTableStoreImpl;
+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.protocol.UpdateMountTableEntryRequest;
+import org.apache.hadoop.hdfs.server.federation.store.records.MountTable;
+import org.apache.hadoop.util.Time;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * The administrator interface of the {@link Router} implemented by
+ * {@link RouterAdminServer}.
+ */
+public class TestRouterAdmin {
+
+ private static StateStoreDFSCluster cluster;
+ private static RouterContext routerContext;
+ public static final String RPC_BEAN =
+ "Hadoop:service=Router,name=FederationRPC";
+ private static List<MountTable> mockMountTable;
+ private static StateStoreService stateStore;
+
+ @BeforeClass
+ public static void globalSetUp() throws Exception {
+ cluster = new StateStoreDFSCluster(false, 1);
+ // Build and start a router with State Store + admin + RPC
+ Configuration conf = new RouterConfigBuilder()
+ .stateStore()
+ .admin()
+ .rpc()
+ .build();
+ cluster.addRouterOverrides(conf);
+ cluster.startRouters();
+ routerContext = cluster.getRandomRouter();
+ mockMountTable = cluster.generateMockMountTable();
+ Router router = routerContext.getRouter();
+ stateStore = router.getStateStore();
+ }
+
+ @AfterClass
+ public static void tearDown() {
+ cluster.stopRouter(routerContext);
+ }
+
+ @Before
+ public void testSetup() throws Exception {
+ assertTrue(
+ synchronizeRecords(stateStore, mockMountTable, MountTable.class));
+ }
+
+ @Test
+ public void testAddMountTable() throws IOException {
+ MountTable newEntry = MountTable.newInstance(
+ "/testpath", Collections.singletonMap("ns0", "/testdir"),
+ Time.now(), Time.now());
+
+ RouterClient client = routerContext.getAdminClient();
+ MountTableManager mountTable = client.getMountTableManager();
+
+ // Existing mount table size
+ List<MountTable> records = getMountTableEntries(mountTable);
+ assertEquals(records.size(), mockMountTable.size());
+
+ // Add
+ AddMountTableEntryRequest addRequest =
+ AddMountTableEntryRequest.newInstance(newEntry);
+ AddMountTableEntryResponse addResponse =
+ mountTable.addMountTableEntry(addRequest);
+ assertTrue(addResponse.getStatus());
+
+ // New mount table size
+ List<MountTable> records2 = getMountTableEntries(mountTable);
+ assertEquals(records2.size(), mockMountTable.size() + 1);
+ }
+
+ @Test
+ public void testAddDuplicateMountTable() throws IOException {
+ MountTable newEntry = MountTable.newInstance("/testpath",
+ Collections.singletonMap("ns0", "/testdir"), Time.now(), Time.now());
+
+ RouterClient client = routerContext.getAdminClient();
+ MountTableManager mountTable = client.getMountTableManager();
+
+ // Existing mount table size
+ List<MountTable> entries1 = getMountTableEntries(mountTable);
+ assertEquals(entries1.size(), mockMountTable.size());
+
+ // Add
+ AddMountTableEntryRequest addRequest =
+ AddMountTableEntryRequest.newInstance(newEntry);
+ AddMountTableEntryResponse addResponse =
+ mountTable.addMountTableEntry(addRequest);
+ assertTrue(addResponse.getStatus());
+
+ // New mount table size
+ List<MountTable> entries2 = getMountTableEntries(mountTable);
+ assertEquals(entries2.size(), mockMountTable.size() + 1);
+
+ // Add again, should fail
+ AddMountTableEntryResponse addResponse2 =
+ mountTable.addMountTableEntry(addRequest);
+ assertFalse(addResponse2.getStatus());
+ }
+
+ @Test
+ public void testRemoveMountTable() throws IOException {
+
+ RouterClient client = routerContext.getAdminClient();
+ MountTableManager mountTable = client.getMountTableManager();
+
+ // Existing mount table size
+ List<MountTable> entries1 = getMountTableEntries(mountTable);
+ assertEquals(entries1.size(), mockMountTable.size());
+
+ // Remove an entry
+ RemoveMountTableEntryRequest removeRequest =
+ RemoveMountTableEntryRequest.newInstance("/");
+ mountTable.removeMountTableEntry(removeRequest);
+
+ // New mount table size
+ List<MountTable> entries2 = getMountTableEntries(mountTable);
+ assertEquals(entries2.size(), mockMountTable.size() - 1);
+ }
+
+ @Test
+ public void testEditMountTable() throws IOException {
+
+ RouterClient client = routerContext.getAdminClient();
+ MountTableManager mountTable = client.getMountTableManager();
+
+ // Verify starting condition
+ MountTable entry = getMountTableEntry("/");
+ assertEquals(
+ Collections.singletonList(new RemoteLocation("ns0", "/")),
+ entry.getDestinations());
+
+ // Edit the entry for /
+ MountTable updatedEntry = MountTable.newInstance(
+ "/", Collections.singletonMap("ns1", "/"), Time.now(), Time.now());
+ UpdateMountTableEntryRequest updateRequest =
+ UpdateMountTableEntryRequest.newInstance(updatedEntry);
+ mountTable.updateMountTableEntry(updateRequest);
+
+ // Verify edited condition
+ entry = getMountTableEntry("/");
+ assertEquals(
+ Collections.singletonList(new RemoteLocation("ns1", "/")),
+ entry.getDestinations());
+ }
+
+ @Test
+ public void testGetMountTable() throws IOException {
+
+ RouterClient client = routerContext.getAdminClient();
+ MountTableManager mountTable = client.getMountTableManager();
+
+ // Verify size of table
+ List<MountTable> entries = getMountTableEntries(mountTable);
+ assertEquals(mockMountTable.size(), entries.size());
+
+ // Verify all entries are present
+ int matches = 0;
+ for (MountTable e : entries) {
+ for (MountTable entry : mockMountTable) {
+ assertEquals(e.getDestinations().size(), 1);
+ assertNotNull(e.getDateCreated());
+ assertNotNull(e.getDateModified());
+ if (entry.getSourcePath().equals(e.getSourcePath())) {
+ matches++;
+ }
+ }
+ }
+ assertEquals(matches, mockMountTable.size());
+ }
+
+ @Test
+ public void testGetSingleMountTableEntry() throws IOException {
+ MountTable entry = getMountTableEntry("/ns0");
+ assertNotNull(entry);
+ assertEquals(entry.getSourcePath(), "/ns0");
+ }
+
+ /**
+ * Gets an existing mount table record in the state store.
+ *
+ * @param mount The mount point of the record to remove.
+ * @return The matching record if found, null if it is not found.
+ * @throws IOException If the state store could not be accessed.
+ */
+ private MountTable getMountTableEntry(final String mount) throws IOException {
+ // Refresh the cache
+ stateStore.loadCache(MountTableStoreImpl.class, true);
+
+ GetMountTableEntriesRequest request =
+ GetMountTableEntriesRequest.newInstance(mount);
+ RouterClient client = routerContext.getAdminClient();
+ MountTableManager mountTable = client.getMountTableManager();
+ List<MountTable> results = getMountTableEntries(mountTable, request);
+ if (results.size() > 0) {
+ // First result is sorted to have the shortest mount string length
+ return results.get(0);
+ }
+ return null;
+ }
+
+ private List<MountTable> getMountTableEntries(MountTableManager mountTable)
+ throws IOException {
+ GetMountTableEntriesRequest request =
+ GetMountTableEntriesRequest.newInstance("/");
+ return getMountTableEntries(mountTable, request);
+ }
+
+ private List<MountTable> getMountTableEntries(MountTableManager mountTable,
+ GetMountTableEntriesRequest request) throws IOException {
+ stateStore.loadCache(MountTableStoreImpl.class, true);
+ GetMountTableEntriesResponse response =
+ mountTable.getMountTableEntries(request);
+ return response.getEntries();
+ }
+}
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