| /** |
| * 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.s4.tools; |
| |
| import org.apache.helix.manager.zk.ZKHelixAdmin; |
| import org.apache.helix.model.InstanceConfig; |
| import org.apache.helix.model.StateModelDefinition; |
| import org.apache.helix.tools.StateModelConfigGenerator; |
| import org.apache.s4.comm.tools.TaskSetup; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.beust.jcommander.Parameter; |
| import com.beust.jcommander.Parameters; |
| |
| public class CreateCluster { |
| |
| static Logger logger = LoggerFactory.getLogger(CreateCluster.class); |
| |
| public static void main(String[] args) { |
| |
| ZKServerArgs clusterArgs = new ZKServerArgs(); |
| Tools.parseArgs(clusterArgs, args); |
| try { |
| logger.info("preparing new cluster [{}] with [{}] node(s)", clusterArgs.clusterName, clusterArgs.nbNodes); |
| ZKHelixAdmin helixAdmin = new ZKHelixAdmin(clusterArgs.zkConnectionString); |
| helixAdmin.addCluster(clusterArgs.clusterName, false); |
| StateModelDefinition onlineofflinemodel = new StateModelDefinition( |
| new StateModelConfigGenerator().generateConfigForOnlineOffline()); |
| StateModelDefinition leaderstandbymodel = new StateModelDefinition( |
| new StateModelConfigGenerator().generateConfigForLeaderStandby()); |
| |
| helixAdmin.addStateModelDef(clusterArgs.clusterName, "OnlineOffline", onlineofflinemodel); |
| helixAdmin.addStateModelDef(clusterArgs.clusterName, "LeaderStandby", leaderstandbymodel); |
| if (clusterArgs.nbNodes > 0) { |
| String[] split = clusterArgs.nodes.split(","); |
| int initialPort = clusterArgs.firstListeningPort; |
| for (int i = 0; i < clusterArgs.nbNodes; i++) { |
| InstanceConfig instanceConfig = new InstanceConfig("localhost_" + initialPort); |
| String host = "localhost"; |
| if (split.length > 0 && split.length == clusterArgs.nbNodes) { |
| host = split[i].trim(); |
| } |
| instanceConfig.setHostName(host); |
| instanceConfig.setPort("" + initialPort); |
| instanceConfig.getRecord().setSimpleField("GROUP", clusterArgs.nodeGroup); |
| helixAdmin.addInstance(clusterArgs.clusterName, instanceConfig); |
| initialPort = initialPort + 1; |
| } |
| } |
| logger.info("New cluster configuration uploaded into zookeeper"); |
| } catch (Exception e) { |
| logger.error("Cannot initialize zookeeper with specified configuration", e); |
| } |
| |
| } |
| |
| @Parameters(commandNames = "s4 newCluster", separators = "=", commandDescription = "Setup new S4 logical cluster") |
| static class ZKServerArgs extends S4ArgsBase { |
| |
| @Parameter(names = { "-c", "-cluster" }, description = "S4 cluster name", required = true) |
| String clusterName = "s4-test-cluster"; |
| |
| @Parameter(names = "-nbNodes", description = "number of S4 nodes for the cluster", required = false) |
| int nbNodes = 0; |
| |
| @Parameter(names = "-nodes", description = "Host names of the nodes", required = false) |
| String nodes = ""; |
| |
| @Parameter(names = "-zk", description = "Zookeeper connection string") |
| String zkConnectionString = "localhost:2181"; |
| |
| @Parameter(names = { "-flp", "-firstListeningPort" }, description = "Initial listening port for nodes in this cluster. First node listens on the specified port, other nodes listen on port initial + nodeIndex", required = true) |
| int firstListeningPort = -1; |
| |
| @Parameter(names = { "-ng", "-nodeGroup" }, description = "Name of the App", required = false, arity = 1) |
| String nodeGroup = "default"; |
| |
| } |
| |
| } |