| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.hdds.scm.node; |
| |
| import org.apache.hadoop.fs.FileUtil; |
| import org.apache.hadoop.hdds.HddsConfigKeys; |
| import org.apache.hadoop.hdds.scm.HddsTestUtils; |
| import org.apache.hadoop.hdds.scm.ScmConfigKeys; |
| import org.apache.hadoop.hdds.scm.TestUtils; |
| import org.apache.hadoop.hdds.scm.net.NetworkTopology; |
| import org.apache.hadoop.hdds.scm.pipeline.PipelineID; |
| import org.apache.hadoop.hdds.scm.container.placement.metrics.SCMNodeStat; |
| import org.apache.hadoop.hdds.conf.OzoneConfiguration; |
| import org.apache.hadoop.hdds.protocol.DatanodeDetails; |
| import org.apache.hadoop.hdds.protocol.proto.HddsProtos; |
| import org.apache.hadoop.hdds.protocol.proto |
| .StorageContainerDatanodeProtocolProtos.StorageReportProto; |
| import org.apache.hadoop.hdds.scm.server.StorageContainerManager; |
| import org.apache.hadoop.hdds.server.events.EventQueue; |
| import org.apache.hadoop.hdfs.DFSConfigKeys; |
| import org.apache.hadoop.ozone.protocol.commands.CloseContainerCommand; |
| import org.apache.hadoop.ozone.protocol.commands.CommandForDatanode; |
| import org.apache.hadoop.ozone.protocol.commands.SCMCommand; |
| import org.apache.hadoop.security.authentication.client.AuthenticationException; |
| import org.apache.hadoop.test.GenericTestUtils; |
| import org.apache.hadoop.test.PathUtils; |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.BeforeClass; |
| import org.junit.Ignore; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.ExpectedException; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.UUID; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.ScheduledFuture; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| |
| import static java.util.concurrent.TimeUnit.MILLISECONDS; |
| import static java.util.concurrent.TimeUnit.SECONDS; |
| import static org.apache.hadoop.fs.CommonConfigurationKeysPublic |
| .NET_TOPOLOGY_NODE_SWITCH_MAPPING_IMPL_KEY; |
| import static org.apache.hadoop.fs.CommonConfigurationKeysPublic |
| .NET_TOPOLOGY_TABLE_MAPPING_FILE_KEY; |
| import static org.apache.hadoop.hdds.HddsConfigKeys.HDDS_HEARTBEAT_INTERVAL; |
| import static org.apache.hadoop.hdds.scm.ScmConfigKeys |
| .OZONE_SCM_DEADNODE_INTERVAL; |
| import static org.apache.hadoop.hdds.scm.ScmConfigKeys |
| .OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL; |
| import static org.apache.hadoop.hdds.scm.ScmConfigKeys |
| .OZONE_SCM_STALENODE_INTERVAL; |
| import static org.apache.hadoop.hdds.protocol.proto.HddsProtos.NodeState.DEAD; |
| import static org.apache.hadoop.hdds.protocol.proto.HddsProtos.NodeState |
| .HEALTHY; |
| import static org.apache.hadoop.hdds.protocol.proto.HddsProtos.NodeState.STALE; |
| import static org.apache.hadoop.hdds.scm.events.SCMEvents.DATANODE_COMMAND; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| /** |
| * Test the SCM Node Manager class. |
| */ |
| public class TestSCMNodeManager { |
| |
| private File testDir; |
| private StorageContainerManager scm; |
| |
| @Rule |
| public ExpectedException thrown = ExpectedException.none(); |
| |
| @BeforeClass |
| public static void init() throws IOException { |
| } |
| |
| @Before |
| public void setup() { |
| testDir = PathUtils.getTestDir( |
| TestSCMNodeManager.class); |
| } |
| |
| @After |
| public void cleanup() { |
| if (scm != null) { |
| scm.stop(); |
| scm.join(); |
| } |
| FileUtil.fullyDelete(testDir); |
| } |
| |
| /** |
| * Returns a new copy of Configuration. |
| * |
| * @return Config |
| */ |
| OzoneConfiguration getConf() { |
| OzoneConfiguration conf = new OzoneConfiguration(); |
| conf.set(HddsConfigKeys.OZONE_METADATA_DIRS, |
| testDir.getAbsolutePath()); |
| conf.setTimeDuration(OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL, 100, |
| TimeUnit.MILLISECONDS); |
| return conf; |
| } |
| |
| /** |
| * Creates a NodeManager. |
| * |
| * @param config - Config for the node manager. |
| * @return SCNNodeManager |
| * @throws IOException |
| */ |
| |
| SCMNodeManager createNodeManager(OzoneConfiguration config) |
| throws IOException, AuthenticationException { |
| scm = HddsTestUtils.getScm(config); |
| return (SCMNodeManager) scm.getScmNodeManager(); |
| } |
| |
| /** |
| * Tests that Node manager handles heartbeats correctly, and comes out of |
| * safe Mode. |
| * |
| * @throws IOException |
| * @throws InterruptedException |
| * @throws TimeoutException |
| */ |
| @Test |
| public void testScmHeartbeat() |
| throws IOException, InterruptedException, AuthenticationException { |
| |
| try (SCMNodeManager nodeManager = createNodeManager(getConf())) { |
| int registeredNodes = 5; |
| // Send some heartbeats from different nodes. |
| for (int x = 0; x < registeredNodes; x++) { |
| DatanodeDetails datanodeDetails = TestUtils |
| .createRandomDatanodeAndRegister(nodeManager); |
| nodeManager.processHeartbeat(datanodeDetails); |
| } |
| |
| //TODO: wait for heartbeat to be processed |
| Thread.sleep(4 * 1000); |
| assertTrue("Heartbeat thread should have picked up the" + |
| "scheduled heartbeats.", |
| nodeManager.getAllNodes().size() == registeredNodes); |
| } |
| } |
| |
| /** |
| * asserts that if we send no heartbeats node manager stays in safemode. |
| * |
| * @throws IOException |
| * @throws InterruptedException |
| * @throws TimeoutException |
| */ |
| @Test |
| public void testScmNoHeartbeats() |
| throws IOException, InterruptedException, AuthenticationException { |
| |
| try (SCMNodeManager nodeManager = createNodeManager(getConf())) { |
| //TODO: wait for heartbeat to be processed |
| Thread.sleep(4 * 1000); |
| assertTrue("No heartbeats, 0 nodes should be registered", |
| nodeManager.getAllNodes().size() == 0); |
| } |
| } |
| |
| /** |
| * Asserts that adding heartbeats after shutdown does not work. This implies |
| * that heartbeat thread has been shutdown safely by closing the node |
| * manager. |
| * |
| * @throws IOException |
| * @throws InterruptedException |
| * @throws TimeoutException |
| */ |
| @Test |
| public void testScmShutdown() |
| throws IOException, InterruptedException, AuthenticationException { |
| OzoneConfiguration conf = getConf(); |
| conf.getTimeDuration(ScmConfigKeys.OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL, |
| 100, TimeUnit.MILLISECONDS); |
| SCMNodeManager nodeManager = createNodeManager(conf); |
| DatanodeDetails datanodeDetails = TestUtils |
| .createRandomDatanodeAndRegister(nodeManager); |
| nodeManager.close(); |
| |
| // These should never be processed. |
| nodeManager.processHeartbeat(datanodeDetails); |
| |
| // Let us just wait for 2 seconds to prove that HBs are not processed. |
| Thread.sleep(2 * 1000); |
| |
| //TODO: add assertion |
| } |
| |
| /** |
| * Asserts that we detect as many healthy nodes as we have generated heartbeat |
| * for. |
| * |
| * @throws IOException |
| * @throws InterruptedException |
| * @throws TimeoutException |
| */ |
| @Test |
| public void testScmHealthyNodeCount() |
| throws IOException, InterruptedException, AuthenticationException { |
| OzoneConfiguration conf = getConf(); |
| final int count = 10; |
| |
| try (SCMNodeManager nodeManager = createNodeManager(conf)) { |
| |
| for (int x = 0; x < count; x++) { |
| DatanodeDetails datanodeDetails = TestUtils |
| .createRandomDatanodeAndRegister(nodeManager); |
| nodeManager.processHeartbeat(datanodeDetails); |
| } |
| //TODO: wait for heartbeat to be processed |
| Thread.sleep(4 * 1000); |
| assertEquals(count, nodeManager.getNodeCount(HEALTHY)); |
| } |
| } |
| |
| /** |
| * Asserts that if Stale Interval value is more than 5 times the value of HB |
| * processing thread it is a sane value. |
| * |
| * @throws IOException |
| * @throws InterruptedException |
| * @throws TimeoutException |
| */ |
| @Test |
| public void testScmSanityOfUserConfig2() |
| throws IOException, AuthenticationException { |
| OzoneConfiguration conf = getConf(); |
| final int interval = 100; |
| conf.setTimeDuration(OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL, interval, |
| TimeUnit.MILLISECONDS); |
| conf.setTimeDuration(HDDS_HEARTBEAT_INTERVAL, 1, TimeUnit.SECONDS); |
| |
| // This should be 5 times more than OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL |
| // and 3 times more than OZONE_SCM_HEARTBEAT_INTERVAL |
| conf.setTimeDuration(OZONE_SCM_STALENODE_INTERVAL, 3 * 1000, MILLISECONDS); |
| createNodeManager(conf).close(); |
| } |
| |
| /** |
| * Asserts that a single node moves from Healthy to stale node, then from |
| * stale node to dead node if it misses enough heartbeats. |
| * |
| * @throws IOException |
| * @throws InterruptedException |
| * @throws TimeoutException |
| */ |
| @Test |
| public void testScmDetectStaleAndDeadNode() |
| throws IOException, InterruptedException, AuthenticationException { |
| final int interval = 100; |
| final int nodeCount = 10; |
| |
| OzoneConfiguration conf = getConf(); |
| conf.setTimeDuration(OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL, interval, |
| MILLISECONDS); |
| conf.setTimeDuration(HDDS_HEARTBEAT_INTERVAL, 1, SECONDS); |
| conf.setTimeDuration(OZONE_SCM_STALENODE_INTERVAL, 3, SECONDS); |
| conf.setTimeDuration(OZONE_SCM_DEADNODE_INTERVAL, 6, SECONDS); |
| |
| |
| try (SCMNodeManager nodeManager = createNodeManager(conf)) { |
| List<DatanodeDetails> nodeList = createNodeSet(nodeManager, nodeCount); |
| |
| |
| DatanodeDetails staleNode = TestUtils.createRandomDatanodeAndRegister( |
| nodeManager); |
| |
| // Heartbeat once |
| nodeManager.processHeartbeat(staleNode); |
| |
| // Heartbeat all other nodes. |
| for (DatanodeDetails dn : nodeList) { |
| nodeManager.processHeartbeat(dn); |
| } |
| |
| // Wait for 2 seconds .. and heartbeat good nodes again. |
| Thread.sleep(2 * 1000); |
| |
| for (DatanodeDetails dn : nodeList) { |
| nodeManager.processHeartbeat(dn); |
| } |
| |
| // Wait for 2 seconds, wait a total of 4 seconds to make sure that the |
| // node moves into stale state. |
| Thread.sleep(2 * 1000); |
| List<DatanodeDetails> staleNodeList = nodeManager.getNodes(STALE); |
| assertEquals("Expected to find 1 stale node", |
| 1, nodeManager.getNodeCount(STALE)); |
| assertEquals("Expected to find 1 stale node", |
| 1, staleNodeList.size()); |
| assertEquals("Stale node is not the expected ID", staleNode |
| .getUuid(), staleNodeList.get(0).getUuid()); |
| Thread.sleep(1000); |
| |
| // heartbeat good nodes again. |
| for (DatanodeDetails dn : nodeList) { |
| nodeManager.processHeartbeat(dn); |
| } |
| |
| // 6 seconds is the dead window for this test , so we wait a total of |
| // 7 seconds to make sure that the node moves into dead state. |
| Thread.sleep(2 * 1000); |
| |
| // the stale node has been removed |
| staleNodeList = nodeManager.getNodes(STALE); |
| assertEquals("Expected to find 1 stale node", |
| 0, nodeManager.getNodeCount(STALE)); |
| assertEquals("Expected to find 1 stale node", |
| 0, staleNodeList.size()); |
| |
| // Check for the dead node now. |
| List<DatanodeDetails> deadNodeList = nodeManager.getNodes(DEAD); |
| assertEquals("Expected to find 1 dead node", 1, |
| nodeManager.getNodeCount(DEAD)); |
| assertEquals("Expected to find 1 dead node", |
| 1, deadNodeList.size()); |
| assertEquals("Dead node is not the expected ID", staleNode |
| .getUuid(), deadNodeList.get(0).getUuid()); |
| } |
| } |
| |
| /** |
| * Simulate a JVM Pause by pausing the health check process |
| * Ensure that none of the nodes with heartbeats become Dead or Stale. |
| * @throws IOException |
| * @throws InterruptedException |
| * @throws AuthenticationException |
| */ |
| @Test |
| public void testScmHandleJvmPause() |
| throws IOException, InterruptedException, AuthenticationException { |
| final int healthCheckInterval = 200; // milliseconds |
| final int heartbeatInterval = 1; // seconds |
| final int staleNodeInterval = 3; // seconds |
| final int deadNodeInterval = 6; // seconds |
| ScheduledFuture schedFuture; |
| |
| OzoneConfiguration conf = getConf(); |
| conf.setTimeDuration(OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL, |
| healthCheckInterval, MILLISECONDS); |
| conf.setTimeDuration(HDDS_HEARTBEAT_INTERVAL, |
| heartbeatInterval, SECONDS); |
| conf.setTimeDuration(OZONE_SCM_STALENODE_INTERVAL, |
| staleNodeInterval, SECONDS); |
| conf.setTimeDuration(OZONE_SCM_DEADNODE_INTERVAL, |
| deadNodeInterval, SECONDS); |
| |
| try (SCMNodeManager nodeManager = createNodeManager(conf)) { |
| DatanodeDetails node1 = |
| TestUtils.createRandomDatanodeAndRegister(nodeManager); |
| DatanodeDetails node2 = |
| TestUtils.createRandomDatanodeAndRegister(nodeManager); |
| |
| nodeManager.processHeartbeat(node1); |
| nodeManager.processHeartbeat(node2); |
| |
| // Sleep so that heartbeat processing thread gets to run. |
| Thread.sleep(1000); |
| |
| //Assert all nodes are healthy. |
| assertEquals(2, nodeManager.getAllNodes().size()); |
| assertEquals(2, nodeManager.getNodeCount(HEALTHY)); |
| |
| /** |
| * Simulate a JVM Pause and subsequent handling in following steps: |
| * Step 1 : stop heartbeat check process for stale node interval |
| * Step 2 : resume heartbeat check |
| * Step 3 : wait for 1 iteration of heartbeat check thread |
| * Step 4 : retrieve the state of all nodes - assert all are HEALTHY |
| * Step 5 : heartbeat for node1 |
| * [TODO : what if there is scheduling delay of test thread in Step 5?] |
| * Step 6 : wait for some time to allow iterations of check process |
| * Step 7 : retrieve the state of all nodes - assert node2 is STALE |
| * and node1 is HEALTHY |
| */ |
| |
| // Step 1 : stop health check process (simulate JVM pause) |
| nodeManager.pauseHealthCheck(); |
| Thread.sleep(MILLISECONDS.convert(staleNodeInterval, SECONDS)); |
| |
| // Step 2 : resume health check |
| assertTrue("Unexpected, already skipped heartbeat checks", |
| (nodeManager.getSkippedHealthChecks() == 0)); |
| schedFuture = nodeManager.unpauseHealthCheck(); |
| |
| // Step 3 : wait for 1 iteration of health check |
| try { |
| schedFuture.get(); |
| assertTrue("We did not skip any heartbeat checks", |
| nodeManager.getSkippedHealthChecks() > 0); |
| } catch (ExecutionException e) { |
| assertEquals("Unexpected exception waiting for Scheduled Health Check", |
| 0, 1); |
| } |
| |
| // Step 4 : all nodes should still be HEALTHY |
| assertEquals(2, nodeManager.getAllNodes().size()); |
| assertEquals(2, nodeManager.getNodeCount(HEALTHY)); |
| |
| // Step 5 : heartbeat for node1 |
| nodeManager.processHeartbeat(node1); |
| |
| // Step 6 : wait for health check process to run |
| Thread.sleep(1000); |
| |
| // Step 7 : node2 should transition to STALE |
| assertEquals(1, nodeManager.getNodeCount(HEALTHY)); |
| assertEquals(1, nodeManager.getNodeCount(STALE)); |
| } |
| } |
| |
| /** |
| * Check for NPE when datanodeDetails is passed null for sendHeartbeat. |
| * |
| * @throws IOException |
| */ |
| @Test |
| public void testScmCheckForErrorOnNullDatanodeDetails() |
| throws IOException, AuthenticationException { |
| try (SCMNodeManager nodeManager = createNodeManager(getConf())) { |
| nodeManager.processHeartbeat(null); |
| } catch (NullPointerException npe) { |
| GenericTestUtils.assertExceptionContains("Heartbeat is missing " + |
| "DatanodeDetails.", npe); |
| } |
| } |
| |
| /** |
| * Asserts that a dead node, stale node and healthy nodes co-exist. The counts |
| * , lists and node ID match the expected node state. |
| * <p/> |
| * This test is pretty complicated because it explores all states of Node |
| * manager in a single test. Please read thru the comments to get an idea of |
| * the current state of the node Manager. |
| * <p/> |
| * This test is written like a state machine to avoid threads and concurrency |
| * issues. This test is replicated below with the use of threads. Avoiding |
| * threads make it easy to debug the state machine. |
| * |
| * @throws IOException |
| * @throws InterruptedException |
| * @throws TimeoutException |
| */ |
| /** |
| * These values are very important. Here is what it means so you don't |
| * have to look it up while reading this code. |
| * |
| * OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL - This the frequency of the |
| * HB processing thread that is running in the SCM. This thread must run |
| * for the SCM to process the Heartbeats. |
| * |
| * OZONE_SCM_HEARTBEAT_INTERVAL - This is the frequency at which |
| * datanodes will send heartbeats to SCM. Please note: This is the only |
| * config value for node manager that is specified in seconds. We don't |
| * want SCM heartbeat resolution to be more than in seconds. |
| * In this test it is not used, but we are forced to set it because we |
| * have validation code that checks Stale Node interval and Dead Node |
| * interval is larger than the value of |
| * OZONE_SCM_HEARTBEAT_INTERVAL. |
| * |
| * OZONE_SCM_STALENODE_INTERVAL - This is the time that must elapse |
| * from the last heartbeat for us to mark a node as stale. In this test |
| * we set that to 3. That is if a node has not heartbeat SCM for last 3 |
| * seconds we will mark it as stale. |
| * |
| * OZONE_SCM_DEADNODE_INTERVAL - This is the time that must elapse |
| * from the last heartbeat for a node to be marked dead. We have an |
| * additional constraint that this must be at least 2 times bigger than |
| * Stale node Interval. |
| * |
| * With these we are trying to explore the state of this cluster with |
| * various timeouts. Each section is commented so that you can keep |
| * track of the state of the cluster nodes. |
| * |
| */ |
| |
| @Test |
| public void testScmClusterIsInExpectedState1() |
| throws IOException, InterruptedException, AuthenticationException { |
| OzoneConfiguration conf = getConf(); |
| conf.setTimeDuration(OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL, 100, |
| MILLISECONDS); |
| conf.setTimeDuration(HDDS_HEARTBEAT_INTERVAL, 1, SECONDS); |
| conf.setTimeDuration(OZONE_SCM_STALENODE_INTERVAL, 3, SECONDS); |
| conf.setTimeDuration(OZONE_SCM_DEADNODE_INTERVAL, 6, SECONDS); |
| |
| |
| /** |
| * Cluster state: Healthy: All nodes are heartbeat-ing like normal. |
| */ |
| try (SCMNodeManager nodeManager = createNodeManager(conf)) { |
| DatanodeDetails healthyNode = |
| TestUtils.createRandomDatanodeAndRegister(nodeManager); |
| DatanodeDetails staleNode = |
| TestUtils.createRandomDatanodeAndRegister(nodeManager); |
| DatanodeDetails deadNode = |
| TestUtils.createRandomDatanodeAndRegister(nodeManager); |
| nodeManager.processHeartbeat(healthyNode); |
| nodeManager.processHeartbeat(staleNode); |
| nodeManager.processHeartbeat(deadNode); |
| |
| // Sleep so that heartbeat processing thread gets to run. |
| Thread.sleep(500); |
| |
| //Assert all nodes are healthy. |
| assertEquals(3, nodeManager.getAllNodes().size()); |
| assertEquals(3, nodeManager.getNodeCount(HEALTHY)); |
| |
| /** |
| * Cluster state: Quiesced: We are going to sleep for 3 seconds. Which |
| * means that no node is heartbeating. All nodes should move to Stale. |
| */ |
| Thread.sleep(3 * 1000); |
| assertEquals(3, nodeManager.getAllNodes().size()); |
| assertEquals(3, nodeManager.getNodeCount(STALE)); |
| |
| |
| /** |
| * Cluster State : Move healthy node back to healthy state, move other 2 |
| * nodes to Stale State. |
| * |
| * We heartbeat healthy node after 1 second and let other 2 nodes elapse |
| * the 3 second windows. |
| */ |
| |
| nodeManager.processHeartbeat(healthyNode); |
| nodeManager.processHeartbeat(staleNode); |
| nodeManager.processHeartbeat(deadNode); |
| |
| Thread.sleep(1500); |
| nodeManager.processHeartbeat(healthyNode); |
| Thread.sleep(2 * 1000); |
| assertEquals(1, nodeManager.getNodeCount(HEALTHY)); |
| |
| |
| // 3.5 seconds from last heartbeat for the stale and deadNode. So those |
| // 2 nodes must move to Stale state and the healthy node must |
| // remain in the healthy State. |
| List<DatanodeDetails> healthyList = nodeManager.getNodes(HEALTHY); |
| assertEquals("Expected one healthy node", 1, healthyList.size()); |
| assertEquals("Healthy node is not the expected ID", healthyNode |
| .getUuid(), healthyList.get(0).getUuid()); |
| |
| assertEquals(2, nodeManager.getNodeCount(STALE)); |
| |
| /** |
| * Cluster State: Allow healthyNode to remain in healthy state and |
| * staleNode to move to stale state and deadNode to move to dead state. |
| */ |
| |
| nodeManager.processHeartbeat(healthyNode); |
| nodeManager.processHeartbeat(staleNode); |
| Thread.sleep(1500); |
| nodeManager.processHeartbeat(healthyNode); |
| Thread.sleep(2 * 1000); |
| |
| // 3.5 seconds have elapsed for stale node, so it moves into Stale. |
| // 7 seconds have elapsed for dead node, so it moves into dead. |
| // 2 Seconds have elapsed for healthy node, so it stays in healthy state. |
| healthyList = nodeManager.getNodes(HEALTHY); |
| List<DatanodeDetails> staleList = nodeManager.getNodes(STALE); |
| List<DatanodeDetails> deadList = nodeManager.getNodes(DEAD); |
| |
| assertEquals(3, nodeManager.getAllNodes().size()); |
| assertEquals(1, nodeManager.getNodeCount(HEALTHY)); |
| assertEquals(1, nodeManager.getNodeCount(STALE)); |
| assertEquals(1, nodeManager.getNodeCount(DEAD)); |
| |
| assertEquals("Expected one healthy node", |
| 1, healthyList.size()); |
| assertEquals("Healthy node is not the expected ID", healthyNode |
| .getUuid(), healthyList.get(0).getUuid()); |
| |
| assertEquals("Expected one stale node", |
| 1, staleList.size()); |
| assertEquals("Stale node is not the expected ID", staleNode |
| .getUuid(), staleList.get(0).getUuid()); |
| |
| assertEquals("Expected one dead node", |
| 1, deadList.size()); |
| assertEquals("Dead node is not the expected ID", deadNode |
| .getUuid(), deadList.get(0).getUuid()); |
| /** |
| * Cluster State : let us heartbeat all the nodes and verify that we get |
| * back all the nodes in healthy state. |
| */ |
| nodeManager.processHeartbeat(healthyNode); |
| nodeManager.processHeartbeat(staleNode); |
| nodeManager.processHeartbeat(deadNode); |
| Thread.sleep(500); |
| //Assert all nodes are healthy. |
| assertEquals(3, nodeManager.getAllNodes().size()); |
| assertEquals(3, nodeManager.getNodeCount(HEALTHY)); |
| } |
| } |
| |
| /** |
| * Heartbeat a given set of nodes at a specified frequency. |
| * |
| * @param manager - Node Manager |
| * @param list - List of datanodeIDs |
| * @param sleepDuration - Duration to sleep between heartbeats. |
| * @throws InterruptedException |
| */ |
| private void heartbeatNodeSet(SCMNodeManager manager, |
| List<DatanodeDetails> list, |
| int sleepDuration) throws InterruptedException { |
| while (!Thread.currentThread().isInterrupted()) { |
| for (DatanodeDetails dn : list) { |
| manager.processHeartbeat(dn); |
| } |
| Thread.sleep(sleepDuration); |
| } |
| } |
| |
| /** |
| * Create a set of Nodes with a given prefix. |
| * |
| * @param count - number of nodes. |
| * @return List of Nodes. |
| */ |
| private List<DatanodeDetails> createNodeSet(SCMNodeManager nodeManager, int |
| count) { |
| List<DatanodeDetails> list = new ArrayList<>(); |
| for (int x = 0; x < count; x++) { |
| DatanodeDetails datanodeDetails = TestUtils |
| .createRandomDatanodeAndRegister(nodeManager); |
| list.add(datanodeDetails); |
| } |
| return list; |
| } |
| |
| /** |
| * Function that tells us if we found the right number of stale nodes. |
| * |
| * @param nodeManager - node manager |
| * @param count - number of stale nodes to look for. |
| * @return true if we found the expected number. |
| */ |
| private boolean findNodes(NodeManager nodeManager, int count, |
| HddsProtos.NodeState state) { |
| return count == nodeManager.getNodeCount(state); |
| } |
| |
| /** |
| * Asserts that we can create a set of nodes that send its heartbeats from |
| * different threads and NodeManager behaves as expected. |
| * |
| * @throws IOException |
| * @throws InterruptedException |
| */ |
| @Test |
| public void testScmClusterIsInExpectedState2() |
| throws IOException, InterruptedException, TimeoutException, |
| AuthenticationException { |
| final int healthyCount = 5000; |
| final int staleCount = 100; |
| final int deadCount = 10; |
| |
| OzoneConfiguration conf = getConf(); |
| conf.setTimeDuration(OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL, 100, |
| MILLISECONDS); |
| conf.setTimeDuration(HDDS_HEARTBEAT_INTERVAL, 1, SECONDS); |
| conf.setTimeDuration(OZONE_SCM_STALENODE_INTERVAL, 3, SECONDS); |
| conf.setTimeDuration(OZONE_SCM_DEADNODE_INTERVAL, 6, SECONDS); |
| |
| |
| try (SCMNodeManager nodeManager = createNodeManager(conf)) { |
| List<DatanodeDetails> healthyNodeList = createNodeSet(nodeManager, |
| healthyCount); |
| List<DatanodeDetails> staleNodeList = createNodeSet(nodeManager, |
| staleCount); |
| List<DatanodeDetails> deadNodeList = createNodeSet(nodeManager, |
| deadCount); |
| |
| Runnable healthyNodeTask = () -> { |
| try { |
| // 2 second heartbeat makes these nodes stay healthy. |
| heartbeatNodeSet(nodeManager, healthyNodeList, 2 * 1000); |
| } catch (InterruptedException ignored) { |
| } |
| }; |
| |
| Runnable staleNodeTask = () -> { |
| try { |
| // 4 second heartbeat makes these nodes go to stale and back to |
| // healthy again. |
| heartbeatNodeSet(nodeManager, staleNodeList, 4 * 1000); |
| } catch (InterruptedException ignored) { |
| } |
| }; |
| |
| |
| // No Thread just one time HBs the node manager, so that these will be |
| // marked as dead nodes eventually. |
| for (DatanodeDetails dn : deadNodeList) { |
| nodeManager.processHeartbeat(dn); |
| } |
| |
| |
| Thread thread1 = new Thread(healthyNodeTask); |
| thread1.setDaemon(true); |
| thread1.start(); |
| |
| |
| Thread thread2 = new Thread(staleNodeTask); |
| thread2.setDaemon(true); |
| thread2.start(); |
| |
| Thread.sleep(10 * 1000); |
| |
| // Assert all healthy nodes are healthy now, this has to be a greater |
| // than check since Stale nodes can be healthy when we check the state. |
| |
| assertTrue(nodeManager.getNodeCount(HEALTHY) >= healthyCount); |
| |
| assertEquals(deadCount, nodeManager.getNodeCount(DEAD)); |
| |
| List<DatanodeDetails> deadList = nodeManager.getNodes(DEAD); |
| |
| for (DatanodeDetails node : deadList) { |
| assertTrue(deadNodeList.contains(node)); |
| } |
| |
| |
| |
| // Checking stale nodes is tricky since they have to move between |
| // healthy and stale to avoid becoming dead nodes. So we search for |
| // that state for a while, if we don't find that state waitfor will |
| // throw. |
| GenericTestUtils.waitFor(() -> findNodes(nodeManager, staleCount, STALE), |
| 500, 4 * 1000); |
| |
| thread1.interrupt(); |
| thread2.interrupt(); |
| } |
| } |
| |
| /** |
| * Asserts that we can handle 6000+ nodes heartbeating SCM. |
| * |
| * @throws IOException |
| * @throws InterruptedException |
| * @throws TimeoutException |
| */ |
| @Test |
| public void testScmCanHandleScale() |
| throws IOException, InterruptedException, TimeoutException, |
| AuthenticationException { |
| final int healthyCount = 3000; |
| final int staleCount = 3000; |
| OzoneConfiguration conf = getConf(); |
| conf.setTimeDuration(OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL, 100, |
| MILLISECONDS); |
| conf.setTimeDuration(HDDS_HEARTBEAT_INTERVAL, 1, |
| SECONDS); |
| conf.setTimeDuration(OZONE_SCM_STALENODE_INTERVAL, 3 * 1000, |
| MILLISECONDS); |
| conf.setTimeDuration(OZONE_SCM_DEADNODE_INTERVAL, 6 * 1000, |
| MILLISECONDS); |
| |
| try (SCMNodeManager nodeManager = createNodeManager(conf)) { |
| List<DatanodeDetails> healthyList = createNodeSet(nodeManager, |
| healthyCount); |
| List<DatanodeDetails> staleList = createNodeSet(nodeManager, |
| staleCount); |
| |
| Runnable healthyNodeTask = () -> { |
| try { |
| heartbeatNodeSet(nodeManager, healthyList, 2 * 1000); |
| } catch (InterruptedException ignored) { |
| |
| } |
| }; |
| |
| Runnable staleNodeTask = () -> { |
| try { |
| heartbeatNodeSet(nodeManager, staleList, 4 * 1000); |
| } catch (InterruptedException ignored) { |
| } |
| }; |
| |
| Thread thread1 = new Thread(healthyNodeTask); |
| thread1.setDaemon(true); |
| thread1.start(); |
| |
| Thread thread2 = new Thread(staleNodeTask); |
| thread2.setDaemon(true); |
| thread2.start(); |
| Thread.sleep(3 * 1000); |
| |
| GenericTestUtils.waitFor(() -> findNodes(nodeManager, staleCount, STALE), |
| 500, 20 * 1000); |
| assertEquals("Node count mismatch", |
| healthyCount + staleCount, nodeManager.getAllNodes().size()); |
| |
| thread1.interrupt(); |
| thread2.interrupt(); |
| } |
| } |
| |
| /** |
| * Test multiple nodes sending initial heartbeat with their node report. |
| * |
| * @throws IOException |
| * @throws InterruptedException |
| * @throws TimeoutException |
| */ |
| @Test |
| @Ignore |
| // TODO: Enable this after we implement NodeReportEvent handler. |
| public void testScmStatsFromNodeReport() |
| throws IOException, InterruptedException, AuthenticationException { |
| OzoneConfiguration conf = getConf(); |
| conf.setTimeDuration(OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL, 1000, |
| MILLISECONDS); |
| final int nodeCount = 10; |
| final long capacity = 2000; |
| final long used = 100; |
| final long remaining = capacity - used; |
| |
| try (SCMNodeManager nodeManager = createNodeManager(conf)) { |
| for (int x = 0; x < nodeCount; x++) { |
| DatanodeDetails datanodeDetails = TestUtils |
| .createRandomDatanodeAndRegister(nodeManager); |
| UUID dnId = datanodeDetails.getUuid(); |
| long free = capacity - used; |
| String storagePath = testDir.getAbsolutePath() + "/" + dnId; |
| StorageReportProto report = TestUtils |
| .createStorageReport(dnId, storagePath, capacity, used, free, null); |
| nodeManager.processHeartbeat(datanodeDetails); |
| } |
| //TODO: wait for heartbeat to be processed |
| Thread.sleep(4 * 1000); |
| assertEquals(nodeCount, nodeManager.getNodeCount(HEALTHY)); |
| assertEquals(capacity * nodeCount, (long) nodeManager.getStats() |
| .getCapacity().get()); |
| assertEquals(used * nodeCount, (long) nodeManager.getStats() |
| .getScmUsed().get()); |
| assertEquals(remaining * nodeCount, (long) nodeManager.getStats() |
| .getRemaining().get()); |
| } |
| } |
| |
| /** |
| * Test single node stat update based on nodereport from different heartbeat |
| * status (healthy, stale and dead). |
| * @throws IOException |
| * @throws InterruptedException |
| * @throws TimeoutException |
| */ |
| @Test |
| @Ignore |
| // TODO: Enable this after we implement NodeReportEvent handler. |
| public void testScmNodeReportUpdate() |
| throws IOException, InterruptedException, TimeoutException, |
| AuthenticationException { |
| OzoneConfiguration conf = getConf(); |
| final int heartbeatCount = 5; |
| final int nodeCount = 1; |
| final int interval = 100; |
| |
| conf.setTimeDuration(OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL, interval, |
| MILLISECONDS); |
| conf.setTimeDuration(HDDS_HEARTBEAT_INTERVAL, 1, SECONDS); |
| conf.setTimeDuration(OZONE_SCM_STALENODE_INTERVAL, 3, SECONDS); |
| conf.setTimeDuration(OZONE_SCM_DEADNODE_INTERVAL, 6, SECONDS); |
| |
| try (SCMNodeManager nodeManager = createNodeManager(conf)) { |
| DatanodeDetails datanodeDetails = |
| TestUtils.createRandomDatanodeAndRegister(nodeManager); |
| final long capacity = 2000; |
| final long usedPerHeartbeat = 100; |
| UUID dnId = datanodeDetails.getUuid(); |
| for (int x = 0; x < heartbeatCount; x++) { |
| long scmUsed = x * usedPerHeartbeat; |
| long remaining = capacity - scmUsed; |
| String storagePath = testDir.getAbsolutePath() + "/" + dnId; |
| StorageReportProto report = TestUtils |
| .createStorageReport(dnId, storagePath, capacity, scmUsed, |
| remaining, null); |
| |
| nodeManager.processHeartbeat(datanodeDetails); |
| Thread.sleep(100); |
| } |
| |
| final long expectedScmUsed = usedPerHeartbeat * (heartbeatCount - 1); |
| final long expectedRemaining = capacity - expectedScmUsed; |
| |
| GenericTestUtils.waitFor( |
| () -> nodeManager.getStats().getScmUsed().get() == expectedScmUsed, |
| 100, 4 * 1000); |
| |
| long foundCapacity = nodeManager.getStats().getCapacity().get(); |
| assertEquals(capacity, foundCapacity); |
| |
| long foundScmUsed = nodeManager.getStats().getScmUsed().get(); |
| assertEquals(expectedScmUsed, foundScmUsed); |
| |
| long foundRemaining = nodeManager.getStats().getRemaining().get(); |
| assertEquals(expectedRemaining, foundRemaining); |
| |
| // Test NodeManager#getNodeStats |
| assertEquals(nodeCount, nodeManager.getNodeStats().size()); |
| long nodeCapacity = nodeManager.getNodeStat(datanodeDetails).get() |
| .getCapacity().get(); |
| assertEquals(capacity, nodeCapacity); |
| |
| foundScmUsed = nodeManager.getNodeStat(datanodeDetails).get().getScmUsed() |
| .get(); |
| assertEquals(expectedScmUsed, foundScmUsed); |
| |
| foundRemaining = nodeManager.getNodeStat(datanodeDetails).get() |
| .getRemaining().get(); |
| assertEquals(expectedRemaining, foundRemaining); |
| |
| // Compare the result from |
| // NodeManager#getNodeStats and NodeManager#getNodeStat |
| SCMNodeStat stat1 = nodeManager.getNodeStats(). |
| get(datanodeDetails.getUuid()); |
| SCMNodeStat stat2 = nodeManager.getNodeStat(datanodeDetails).get(); |
| assertEquals(stat1, stat2); |
| |
| // Wait up to 4s so that the node becomes stale |
| // Verify the usage info should be unchanged. |
| GenericTestUtils.waitFor( |
| () -> nodeManager.getNodeCount(STALE) == 1, 100, |
| 4 * 1000); |
| assertEquals(nodeCount, nodeManager.getNodeStats().size()); |
| |
| foundCapacity = nodeManager.getNodeStat(datanodeDetails).get() |
| .getCapacity().get(); |
| assertEquals(capacity, foundCapacity); |
| foundScmUsed = nodeManager.getNodeStat(datanodeDetails).get() |
| .getScmUsed().get(); |
| assertEquals(expectedScmUsed, foundScmUsed); |
| |
| foundRemaining = nodeManager.getNodeStat(datanodeDetails).get(). |
| getRemaining().get(); |
| assertEquals(expectedRemaining, foundRemaining); |
| |
| // Wait up to 4 more seconds so the node becomes dead |
| // Verify usage info should be updated. |
| GenericTestUtils.waitFor( |
| () -> nodeManager.getNodeCount(DEAD) == 1, 100, |
| 4 * 1000); |
| |
| assertEquals(0, nodeManager.getNodeStats().size()); |
| foundCapacity = nodeManager.getStats().getCapacity().get(); |
| assertEquals(0, foundCapacity); |
| |
| foundScmUsed = nodeManager.getStats().getScmUsed().get(); |
| assertEquals(0, foundScmUsed); |
| |
| foundRemaining = nodeManager.getStats().getRemaining().get(); |
| assertEquals(0, foundRemaining); |
| |
| nodeManager.processHeartbeat(datanodeDetails); |
| |
| // Wait up to 5 seconds so that the dead node becomes healthy |
| // Verify usage info should be updated. |
| GenericTestUtils.waitFor( |
| () -> nodeManager.getNodeCount(HEALTHY) == 1, |
| 100, 5 * 1000); |
| GenericTestUtils.waitFor( |
| () -> nodeManager.getStats().getScmUsed().get() == expectedScmUsed, |
| 100, 4 * 1000); |
| assertEquals(nodeCount, nodeManager.getNodeStats().size()); |
| foundCapacity = nodeManager.getNodeStat(datanodeDetails).get() |
| .getCapacity().get(); |
| assertEquals(capacity, foundCapacity); |
| foundScmUsed = nodeManager.getNodeStat(datanodeDetails).get().getScmUsed() |
| .get(); |
| assertEquals(expectedScmUsed, foundScmUsed); |
| foundRemaining = nodeManager.getNodeStat(datanodeDetails).get() |
| .getRemaining().get(); |
| assertEquals(expectedRemaining, foundRemaining); |
| } |
| } |
| |
| @Test |
| public void testHandlingSCMCommandEvent() |
| throws IOException, AuthenticationException { |
| OzoneConfiguration conf = getConf(); |
| conf.getTimeDuration(ScmConfigKeys.OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL, |
| 100, TimeUnit.MILLISECONDS); |
| |
| DatanodeDetails datanodeDetails = TestUtils.randomDatanodeDetails(); |
| UUID dnId = datanodeDetails.getUuid(); |
| String storagePath = testDir.getAbsolutePath() + "/" + dnId; |
| StorageReportProto report = |
| TestUtils.createStorageReport(dnId, storagePath, 100, 10, 90, null); |
| |
| EventQueue eq = new EventQueue(); |
| try (SCMNodeManager nodemanager = createNodeManager(conf)) { |
| eq.addHandler(DATANODE_COMMAND, nodemanager); |
| |
| nodemanager |
| .register(datanodeDetails, TestUtils.createNodeReport(report), |
| TestUtils.getRandomPipelineReports()); |
| eq.fireEvent(DATANODE_COMMAND, |
| new CommandForDatanode<>(datanodeDetails.getUuid(), |
| new CloseContainerCommand(1L, |
| PipelineID.randomId()))); |
| |
| eq.processAll(1000L); |
| List<SCMCommand> command = |
| nodemanager.processHeartbeat(datanodeDetails); |
| Assert.assertEquals(1, command.size()); |
| Assert |
| .assertEquals(command.get(0).getClass(), CloseContainerCommand.class); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| throw e; |
| } |
| } |
| |
| /** |
| * Test add node into network topology during node register. Datanode |
| * uses Ip address to resolve network location. |
| */ |
| @Test |
| public void testScmRegisterNodeWithIpAddress() |
| throws IOException, InterruptedException, AuthenticationException { |
| testScmRegisterNodeWithNetworkTopology(false); |
| } |
| |
| /** |
| * Test add node into network topology during node register. Datanode |
| * uses hostname to resolve network location. |
| */ |
| @Test |
| public void testScmRegisterNodeWithHostname() |
| throws IOException, InterruptedException, AuthenticationException { |
| testScmRegisterNodeWithNetworkTopology(true); |
| } |
| |
| /** |
| * Test getNodesByAddress when using IPs. |
| * |
| */ |
| @Test |
| public void testgetNodesByAddressWithIpAddress() |
| throws IOException, InterruptedException, AuthenticationException { |
| testGetNodesByAddress(false); |
| } |
| |
| /** |
| * Test getNodesByAddress when using hostnames. |
| */ |
| @Test |
| public void testgetNodesByAddressWithHostname() |
| throws IOException, InterruptedException, AuthenticationException { |
| testGetNodesByAddress(true); |
| } |
| |
| /** |
| * Test add node into a 4-layer network topology during node register. |
| */ |
| @Test |
| public void testScmRegisterNodeWith4LayerNetworkTopology() |
| throws IOException, InterruptedException, AuthenticationException { |
| OzoneConfiguration conf = getConf(); |
| conf.setTimeDuration(OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL, 1000, |
| MILLISECONDS); |
| |
| // create table mapping file |
| String[] hostNames = {"host1", "host2", "host3", "host4"}; |
| String[] ipAddress = {"1.2.3.4", "2.3.4.5", "3.4.5.6", "4.5.6.7"}; |
| String mapFile = this.getClass().getClassLoader() |
| .getResource("nodegroup-mapping").getPath(); |
| |
| // create and register nodes |
| conf.set(NET_TOPOLOGY_NODE_SWITCH_MAPPING_IMPL_KEY, |
| "org.apache.hadoop.net.TableMapping"); |
| conf.set(NET_TOPOLOGY_TABLE_MAPPING_FILE_KEY, mapFile); |
| conf.set(ScmConfigKeys.OZONE_SCM_NETWORK_TOPOLOGY_SCHEMA_FILE, |
| "network-topology-nodegroup.xml"); |
| final int nodeCount = hostNames.length; |
| // use default IP address to resolve node |
| try (SCMNodeManager nodeManager = createNodeManager(conf)) { |
| DatanodeDetails[] nodes = new DatanodeDetails[nodeCount]; |
| for (int i = 0; i < nodeCount; i++) { |
| DatanodeDetails node = TestUtils.createDatanodeDetails( |
| UUID.randomUUID().toString(), hostNames[i], ipAddress[i], null); |
| nodeManager.register(node, null, null); |
| nodes[i] = node; |
| } |
| |
| // verify network topology cluster has all the registered nodes |
| Thread.sleep(4 * 1000); |
| NetworkTopology clusterMap = scm.getClusterMap(); |
| assertEquals(nodeCount, nodeManager.getNodeCount(HEALTHY)); |
| assertEquals(nodeCount, clusterMap.getNumOfLeafNode("")); |
| assertEquals(4, clusterMap.getMaxLevel()); |
| List<DatanodeDetails> nodeList = nodeManager.getAllNodes(); |
| nodeList.stream().forEach(node -> |
| Assert.assertTrue(node.getNetworkLocation().startsWith("/rack1/ng"))); |
| } |
| } |
| |
| private void testScmRegisterNodeWithNetworkTopology(boolean useHostname) |
| throws IOException, InterruptedException, AuthenticationException { |
| OzoneConfiguration conf = getConf(); |
| conf.setTimeDuration(OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL, 1000, |
| MILLISECONDS); |
| |
| // create table mapping file |
| String[] hostNames = {"host1", "host2", "host3", "host4"}; |
| String[] ipAddress = {"1.2.3.4", "2.3.4.5", "3.4.5.6", "4.5.6.7"}; |
| String mapFile = this.getClass().getClassLoader() |
| .getResource("rack-mapping").getPath(); |
| |
| // create and register nodes |
| conf.set(NET_TOPOLOGY_NODE_SWITCH_MAPPING_IMPL_KEY, |
| "org.apache.hadoop.net.TableMapping"); |
| conf.set(NET_TOPOLOGY_TABLE_MAPPING_FILE_KEY, mapFile); |
| if (useHostname) { |
| conf.set(DFSConfigKeys.DFS_DATANODE_USE_DN_HOSTNAME, "true"); |
| } |
| final int nodeCount = hostNames.length; |
| // use default IP address to resolve node |
| try (SCMNodeManager nodeManager = createNodeManager(conf)) { |
| DatanodeDetails[] nodes = new DatanodeDetails[nodeCount]; |
| for (int i = 0; i < nodeCount; i++) { |
| DatanodeDetails node = TestUtils.createDatanodeDetails( |
| UUID.randomUUID().toString(), hostNames[i], ipAddress[i], null); |
| nodeManager.register(node, null, null); |
| nodes[i] = node; |
| } |
| |
| // verify network topology cluster has all the registered nodes |
| Thread.sleep(4 * 1000); |
| NetworkTopology clusterMap = scm.getClusterMap(); |
| assertEquals(nodeCount, nodeManager.getNodeCount(HEALTHY)); |
| assertEquals(nodeCount, clusterMap.getNumOfLeafNode("")); |
| assertEquals(3, clusterMap.getMaxLevel()); |
| List<DatanodeDetails> nodeList = nodeManager.getAllNodes(); |
| nodeList.stream().forEach(node -> |
| Assert.assertTrue(node.getNetworkLocation().equals("/rack1"))); |
| |
| // test get node |
| if (useHostname) { |
| Arrays.stream(hostNames).forEach(hostname -> |
| Assert.assertNotEquals(0, nodeManager.getNodesByAddress(hostname) |
| .size())); |
| } else { |
| Arrays.stream(ipAddress).forEach(ip -> |
| Assert.assertNotEquals(0, nodeManager.getNodesByAddress(ip) |
| .size())); |
| } |
| } |
| } |
| |
| /** |
| * Test add node into a 4-layer network topology during node register. |
| */ |
| private void testGetNodesByAddress(boolean useHostname) |
| throws IOException, InterruptedException, AuthenticationException { |
| OzoneConfiguration conf = getConf(); |
| conf.setTimeDuration(OZONE_SCM_HEARTBEAT_PROCESS_INTERVAL, 1000, |
| MILLISECONDS); |
| |
| // create a set of hosts - note two hosts on "host1" |
| String[] hostNames = {"host1", "host1", "host2", "host3", "host4"}; |
| String[] ipAddress = |
| {"1.2.3.4", "1.2.3.4", "2.3.4.5", "3.4.5.6", "4.5.6.7"}; |
| |
| if (useHostname) { |
| conf.set(DFSConfigKeys.DFS_DATANODE_USE_DN_HOSTNAME, "true"); |
| } |
| final int nodeCount = hostNames.length; |
| try (SCMNodeManager nodeManager = createNodeManager(conf)) { |
| DatanodeDetails[] nodes = new DatanodeDetails[nodeCount]; |
| for (int i = 0; i < nodeCount; i++) { |
| DatanodeDetails node = TestUtils.createDatanodeDetails( |
| UUID.randomUUID().toString(), hostNames[i], ipAddress[i], null); |
| nodeManager.register(node, null, null); |
| } |
| // test get node |
| Assert.assertEquals(0, nodeManager.getNodesByAddress(null).size()); |
| if (useHostname) { |
| Assert.assertEquals(2, |
| nodeManager.getNodesByAddress("host1").size()); |
| Assert.assertEquals(1, nodeManager.getNodesByAddress("host2").size()); |
| Assert.assertEquals(0, nodeManager.getNodesByAddress("unknown").size()); |
| } else { |
| Assert.assertEquals(2, |
| nodeManager.getNodesByAddress("1.2.3.4").size()); |
| Assert.assertEquals(1, nodeManager.getNodesByAddress("2.3.4.5").size()); |
| Assert.assertEquals(0, nodeManager.getNodesByAddress("1.9.8.7").size()); |
| } |
| } |
| } |
| |
| } |
