| package org.apache.helix.filestore; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.apache.helix.HelixDataAccessor; |
| import org.apache.helix.HelixManager; |
| import org.apache.helix.PropertyKey.Builder; |
| import org.apache.helix.controller.HelixControllerMain; |
| import org.apache.helix.model.HelixConfigScope; |
| import org.apache.helix.model.HelixConfigScope.ConfigScopeProperty; |
| import org.apache.helix.model.builder.HelixConfigScopeBuilder; |
| import org.apache.helix.tools.ClusterSetup; |
| import org.apache.helix.zookeeper.zkclient.IDefaultNameSpace; |
| import org.apache.helix.zookeeper.zkclient.ZkClient; |
| import org.apache.helix.zookeeper.zkclient.ZkServer; |
| |
| |
| public class IntegrationTest { |
| |
| public static void main(String[] args) throws InterruptedException { |
| ZkServer server = null; |
| |
| try { |
| String baseDir = "/tmp/IntegrationTest/"; |
| final String dataDir = baseDir + "zk/dataDir"; |
| final String logDir = baseDir + "/tmp/logDir"; |
| FileUtils.deleteDirectory(new File(dataDir)); |
| FileUtils.deleteDirectory(new File(logDir)); |
| |
| IDefaultNameSpace defaultNameSpace = new IDefaultNameSpace() { |
| @Override |
| public void createDefaultNameSpace(ZkClient zkClient) { |
| |
| } |
| }; |
| int zkPort = 2199; |
| final String zkAddress = "localhost:" + zkPort; |
| |
| server = new ZkServer(dataDir, logDir, defaultNameSpace, zkPort); |
| server.start(); |
| ClusterSetup setup = new ClusterSetup(zkAddress); |
| final String clusterName = "file-store-test"; |
| setup.deleteCluster(clusterName); |
| setup.addCluster(clusterName, true); |
| setup.addInstanceToCluster(clusterName, "localhost_12001"); |
| setup.addInstanceToCluster(clusterName, "localhost_12002"); |
| setup.addInstanceToCluster(clusterName, "localhost_12003"); |
| setup.addResourceToCluster(clusterName, "repository", 1, "MasterSlave"); |
| setup.rebalanceResource(clusterName, "repository", 3); |
| // Set the configuration |
| final String instanceName1 = "localhost_12001"; |
| addConfiguration(setup, baseDir, clusterName, instanceName1); |
| final String instanceName2 = "localhost_12002"; |
| addConfiguration(setup, baseDir, clusterName, instanceName2); |
| final String instanceName3 = "localhost_12003"; |
| addConfiguration(setup, baseDir, clusterName, instanceName3); |
| Thread thread1 = new Thread(new Runnable() { |
| @Override |
| public void run() { |
| FileStore fileStore = null; |
| |
| try { |
| fileStore = new FileStore(zkAddress, clusterName, instanceName1); |
| fileStore.connect(); |
| } catch (Exception e) { |
| System.err.println("Exception" + e); |
| fileStore.disconnect(); |
| } |
| } |
| |
| }); |
| // START NODES |
| Thread thread2 = new Thread(new Runnable() { |
| |
| @Override |
| public void run() { |
| FileStore fileStore = new FileStore(zkAddress, clusterName, instanceName2); |
| fileStore.connect(); |
| } |
| }); |
| // START NODES |
| Thread thread3 = new Thread(new Runnable() { |
| |
| @Override |
| public void run() { |
| FileStore fileStore = new FileStore(zkAddress, clusterName, instanceName3); |
| fileStore.connect(); |
| } |
| }); |
| System.out.println("STARTING NODES"); |
| thread1.start(); |
| thread2.start(); |
| thread3.start(); |
| |
| // Start Controller |
| final HelixManager manager = |
| HelixControllerMain.startHelixController(zkAddress, clusterName, "controller", |
| HelixControllerMain.STANDALONE); |
| Thread.sleep(5000); |
| printStatus(manager); |
| listFiles(baseDir); |
| System.out.println("Writing files a.txt and b.txt to current master " + baseDir |
| + "localhost_12001" + "/filestore"); |
| FileUtils.writeStringToFile(new File(baseDir + "localhost_12001" + "/filestore/a.txt"), |
| "some_data in a"); |
| FileUtils.writeStringToFile(new File(baseDir + "localhost_12001" + "/filestore/b.txt"), |
| "some_data in b"); |
| Thread.sleep(10000); |
| listFiles(baseDir); |
| Thread.sleep(5000); |
| System.out.println("Stopping the MASTER node:" + "localhost_12001"); |
| thread1.interrupt(); |
| Thread.sleep(10000); |
| printStatus(manager); |
| System.out.println("Writing files c.txt and d.txt to current master " + baseDir |
| + "localhost_12002" + "/filestore"); |
| FileUtils.writeStringToFile(new File(baseDir + "localhost_12002" + "/filestore/c.txt"), |
| "some_data in c"); |
| FileUtils.writeStringToFile(new File(baseDir + "localhost_12002" + "/filestore/d.txt"), |
| "some_data in d"); |
| Thread.sleep(10000); |
| listFiles(baseDir); |
| System.out.println("Create or modify any files under " + baseDir + "localhost_12002" |
| + "/filestore" + " and it should get replicated to " + baseDir + "localhost_12003" |
| + "/filestore"); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } finally { |
| if (server != null) { |
| // server.shutdown(); |
| } |
| } |
| Thread.currentThread().join(); |
| } |
| |
| private static void listFiles(String baseDir) { |
| System.out.println("===============FILES==============================="); |
| String[] instances = new String[] { |
| "localhost_12001", "localhost_12002", "localhost_12003" |
| }; |
| for (String instance : instances) { |
| String dir = baseDir + instance + "/filestore"; |
| String[] list = new File(dir).list(); |
| System.out.println(dir + ":" + ((list != null) ? Arrays.toString(list) : "NONE")); |
| } |
| System.out.println("===============FILES==============================="); |
| } |
| |
| private static void printStatus(final HelixManager manager) { |
| System.out.println("CLUSTER STATUS"); |
| HelixDataAccessor helixDataAccessor = manager.getHelixDataAccessor(); |
| Builder keyBuilder = helixDataAccessor.keyBuilder(); |
| System.out.println("External View \n" |
| + helixDataAccessor.getProperty(keyBuilder.externalView("repository"))); |
| } |
| |
| private static void addConfiguration(ClusterSetup setup, String baseDir, String clusterName, |
| String instanceName) throws IOException { |
| Map<String, String> properties = new HashMap<String, String>(); |
| HelixConfigScopeBuilder builder = new HelixConfigScopeBuilder(ConfigScopeProperty.PARTICIPANT); |
| HelixConfigScope instanceScope = |
| builder.forCluster(clusterName).forParticipant(instanceName).build(); |
| properties.put("change_log_dir", baseDir + instanceName + "/translog"); |
| properties.put("file_store_dir", baseDir + instanceName + "/filestore"); |
| properties.put("check_point_dir", baseDir + instanceName + "/checkpoint"); |
| setup.getClusterManagementTool().setConfig(instanceScope, properties); |
| FileUtils.deleteDirectory(new File(properties.get("change_log_dir"))); |
| FileUtils.deleteDirectory(new File(properties.get("file_store_dir"))); |
| FileUtils.deleteDirectory(new File(properties.get("check_point_dir"))); |
| new File(properties.get("change_log_dir")).mkdirs(); |
| new File(properties.get("file_store_dir")).mkdirs(); |
| new File(properties.get("check_point_dir")).mkdirs(); |
| } |
| } |