| /** |
| * 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.namenode; |
| |
| import java.io.IOException; |
| |
| import org.junit.Test; |
| import org.junit.Before; |
| import org.junit.After; |
| |
| import static org.junit.Assert.*; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.conf.ReconfigurationException; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.hdfs.HdfsConfiguration; |
| import org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager; |
| |
| import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.HADOOP_CALLER_CONTEXT_ENABLED_KEY; |
| import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.HADOOP_CALLER_CONTEXT_ENABLED_DEFAULT; |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_HEARTBEAT_INTERVAL_KEY; |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_HEARTBEAT_INTERVAL_DEFAULT; |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY; |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_DEFAULT; |
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_BLOCK_INVALIDATE_LIMIT_KEY; |
| import static org.apache.hadoop.fs.CommonConfigurationKeys.IPC_BACKOFF_ENABLE_DEFAULT; |
| |
| public class TestNameNodeReconfigure { |
| |
| public static final Log LOG = LogFactory |
| .getLog(TestNameNodeReconfigure.class); |
| |
| private MiniDFSCluster cluster; |
| private final int customizedBlockInvalidateLimit = 500; |
| |
| @Before |
| public void setUp() throws IOException { |
| Configuration conf = new HdfsConfiguration(); |
| conf.setInt(DFS_BLOCK_INVALIDATE_LIMIT_KEY, |
| customizedBlockInvalidateLimit); |
| cluster = new MiniDFSCluster.Builder(conf).build(); |
| cluster.waitActive(); |
| } |
| |
| @Test |
| public void testReconfigureCallerContextEnabled() |
| throws ReconfigurationException { |
| final NameNode nameNode = cluster.getNameNode(); |
| final FSNamesystem nameSystem = nameNode.getNamesystem(); |
| |
| // try invalid values |
| nameNode.reconfigureProperty(HADOOP_CALLER_CONTEXT_ENABLED_KEY, "text"); |
| verifyReconfigureCallerContextEnabled(nameNode, nameSystem, false); |
| |
| // enable CallerContext |
| nameNode.reconfigureProperty(HADOOP_CALLER_CONTEXT_ENABLED_KEY, "true"); |
| verifyReconfigureCallerContextEnabled(nameNode, nameSystem, true); |
| |
| // disable CallerContext |
| nameNode.reconfigureProperty(HADOOP_CALLER_CONTEXT_ENABLED_KEY, "false"); |
| verifyReconfigureCallerContextEnabled(nameNode, nameSystem, false); |
| |
| // revert to default |
| nameNode.reconfigureProperty(HADOOP_CALLER_CONTEXT_ENABLED_KEY, null); |
| |
| // verify default |
| assertEquals(HADOOP_CALLER_CONTEXT_ENABLED_KEY + " has wrong value", false, |
| nameSystem.getCallerContextEnabled()); |
| assertEquals(HADOOP_CALLER_CONTEXT_ENABLED_KEY + " has wrong value", null, |
| nameNode.getConf().get(HADOOP_CALLER_CONTEXT_ENABLED_KEY)); |
| } |
| |
| void verifyReconfigureCallerContextEnabled(final NameNode nameNode, |
| final FSNamesystem nameSystem, boolean expected) { |
| assertEquals(HADOOP_CALLER_CONTEXT_ENABLED_KEY + " has wrong value", |
| expected, nameNode.getNamesystem().getCallerContextEnabled()); |
| assertEquals( |
| HADOOP_CALLER_CONTEXT_ENABLED_KEY + " has wrong value", |
| expected, |
| nameNode.getConf().getBoolean(HADOOP_CALLER_CONTEXT_ENABLED_KEY, |
| HADOOP_CALLER_CONTEXT_ENABLED_DEFAULT)); |
| } |
| |
| /** |
| * Test to reconfigure enable/disable IPC backoff |
| */ |
| @Test |
| public void testReconfigureIPCBackoff() throws ReconfigurationException { |
| final NameNode nameNode = cluster.getNameNode(); |
| NameNodeRpcServer nnrs = (NameNodeRpcServer) nameNode.getRpcServer(); |
| |
| String ipcClientRPCBackoffEnable = NameNode.buildBackoffEnableKey(nnrs |
| .getClientRpcServer().getPort()); |
| |
| // try invalid values |
| verifyReconfigureIPCBackoff(nameNode, nnrs, ipcClientRPCBackoffEnable, |
| false); |
| |
| // enable IPC_CLIENT_RPC_BACKOFF |
| nameNode.reconfigureProperty(ipcClientRPCBackoffEnable, "true"); |
| verifyReconfigureIPCBackoff(nameNode, nnrs, ipcClientRPCBackoffEnable, |
| true); |
| |
| // disable IPC_CLIENT_RPC_BACKOFF |
| nameNode.reconfigureProperty(ipcClientRPCBackoffEnable, "false"); |
| verifyReconfigureIPCBackoff(nameNode, nnrs, ipcClientRPCBackoffEnable, |
| false); |
| |
| // revert to default |
| nameNode.reconfigureProperty(ipcClientRPCBackoffEnable, null); |
| assertEquals(ipcClientRPCBackoffEnable + " has wrong value", false, |
| nnrs.getClientRpcServer().isClientBackoffEnabled()); |
| assertEquals(ipcClientRPCBackoffEnable + " has wrong value", null, |
| nameNode.getConf().get(ipcClientRPCBackoffEnable)); |
| } |
| |
| void verifyReconfigureIPCBackoff(final NameNode nameNode, |
| final NameNodeRpcServer nnrs, String property, boolean expected) { |
| assertEquals(property + " has wrong value", expected, nnrs |
| .getClientRpcServer().isClientBackoffEnabled()); |
| assertEquals(property + " has wrong value", expected, nameNode.getConf() |
| .getBoolean(property, IPC_BACKOFF_ENABLE_DEFAULT)); |
| } |
| |
| /** |
| * Test to reconfigure interval of heart beat check and re-check. |
| */ |
| @Test |
| public void testReconfigureHearbeatCheck() throws ReconfigurationException { |
| final NameNode nameNode = cluster.getNameNode(); |
| final DatanodeManager datanodeManager = nameNode.namesystem |
| .getBlockManager().getDatanodeManager(); |
| // change properties |
| nameNode.reconfigureProperty(DFS_HEARTBEAT_INTERVAL_KEY, "" + 6); |
| nameNode.reconfigureProperty(DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY, |
| "" + (10 * 60 * 1000)); |
| |
| // try invalid values |
| try { |
| nameNode.reconfigureProperty(DFS_HEARTBEAT_INTERVAL_KEY, "text"); |
| fail("ReconfigurationException expected"); |
| } catch (ReconfigurationException expected) { |
| assertTrue(expected.getCause() instanceof NumberFormatException); |
| } |
| try { |
| nameNode.reconfigureProperty(DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY, |
| "text"); |
| fail("ReconfigurationException expected"); |
| } catch (ReconfigurationException expected) { |
| assertTrue(expected.getCause() instanceof NumberFormatException); |
| } |
| |
| // verify change |
| assertEquals( |
| DFS_HEARTBEAT_INTERVAL_KEY + " has wrong value", |
| 6, |
| nameNode.getConf().getLong(DFS_HEARTBEAT_INTERVAL_KEY, |
| DFS_HEARTBEAT_INTERVAL_DEFAULT)); |
| assertEquals(DFS_HEARTBEAT_INTERVAL_KEY + " has wrong value", 6, |
| datanodeManager.getHeartbeatInterval()); |
| |
| assertEquals( |
| DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY + " has wrong value", |
| 10 * 60 * 1000, |
| nameNode.getConf().getInt(DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY, |
| DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_DEFAULT)); |
| assertEquals(DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY |
| + " has wrong value", 10 * 60 * 1000, |
| datanodeManager.getHeartbeatRecheckInterval()); |
| |
| // revert to defaults |
| nameNode.reconfigureProperty(DFS_HEARTBEAT_INTERVAL_KEY, null); |
| nameNode.reconfigureProperty(DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY, |
| null); |
| |
| // verify defaults |
| assertEquals(DFS_HEARTBEAT_INTERVAL_KEY + " has wrong value", null, |
| nameNode.getConf().get(DFS_HEARTBEAT_INTERVAL_KEY)); |
| assertEquals(DFS_HEARTBEAT_INTERVAL_KEY + " has wrong value", |
| DFS_HEARTBEAT_INTERVAL_DEFAULT, datanodeManager.getHeartbeatInterval()); |
| |
| assertEquals(DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY |
| + " has wrong value", null, |
| nameNode.getConf().get(DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY)); |
| assertEquals(DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY |
| + " has wrong value", DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_DEFAULT, |
| datanodeManager.getHeartbeatRecheckInterval()); |
| } |
| |
| @Test |
| public void testBlockInvalidateLimitAfterReconfigured() |
| throws ReconfigurationException { |
| final NameNode nameNode = cluster.getNameNode(); |
| final DatanodeManager datanodeManager = nameNode.namesystem |
| .getBlockManager().getDatanodeManager(); |
| |
| assertEquals(DFS_BLOCK_INVALIDATE_LIMIT_KEY + " is not correctly set", |
| customizedBlockInvalidateLimit, |
| datanodeManager.getBlockInvalidateLimit()); |
| |
| nameNode.reconfigureProperty(DFS_HEARTBEAT_INTERVAL_KEY, |
| Integer.toString(6)); |
| |
| // 20 * 6 = 120 < 500 |
| // Invalid block limit should stay same as before after reconfiguration. |
| assertEquals(DFS_BLOCK_INVALIDATE_LIMIT_KEY |
| + " is not honored after reconfiguration", |
| customizedBlockInvalidateLimit, |
| datanodeManager.getBlockInvalidateLimit()); |
| |
| nameNode.reconfigureProperty(DFS_HEARTBEAT_INTERVAL_KEY, |
| Integer.toString(50)); |
| |
| // 20 * 50 = 1000 > 500 |
| // Invalid block limit should be reset to 1000 |
| assertEquals(DFS_BLOCK_INVALIDATE_LIMIT_KEY |
| + " is not reconfigured correctly", |
| 1000, |
| datanodeManager.getBlockInvalidateLimit()); |
| } |
| |
| @After |
| public void shutDown() throws IOException { |
| if (cluster != null) { |
| cluster.shutdown(); |
| } |
| } |
| } |