| /** |
| * 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 java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.I0Itec.zkclient.exception.ZkNoNodeException; |
| import org.apache.s4.comm.topology.ClusterNode; |
| import org.apache.s4.comm.topology.ZNRecord; |
| import org.apache.s4.comm.topology.ZNRecordSerializer; |
| import org.apache.s4.comm.topology.ZkClient; |
| import org.apache.s4.tools.S4ArgsBase.GradleOptsConverter; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.beust.jcommander.Parameter; |
| import com.beust.jcommander.Parameters; |
| import com.google.common.collect.Maps; |
| |
| public class Status extends S4ArgsBase { |
| static Logger logger = LoggerFactory.getLogger(Status.class); |
| |
| private static String NONE = "--"; |
| |
| public static void main(String[] args) { |
| |
| StatusArgs statusArgs = new StatusArgs(); |
| Tools.parseArgs(statusArgs, args); |
| |
| List<Cluster> clusterStatus = new ArrayList<Cluster>(); |
| List<Stream> streamStatus = new ArrayList<Stream>(); |
| |
| try { |
| ZkClient zkClient = new ZkClient(statusArgs.zkConnectionString, statusArgs.timeout); |
| zkClient.setZkSerializer(new ZNRecordSerializer()); |
| |
| List<String> clusters = statusArgs.clusters; |
| if (clusters == null) { |
| // Load all subclusters |
| clusters = zkClient.getChildren("/s4/clusters"); |
| } |
| |
| Set<String> app = null; |
| Set<String> requiredAppCluster = new HashSet<String>(); |
| if (statusArgs.apps != null) { |
| app = new HashSet<String>(statusArgs.apps); |
| } |
| |
| for (String clusterName : clusters) { |
| try { |
| if (zkClient.exists("/s4/clusters/" + clusterName)) { |
| Cluster cluster = new Cluster(clusterName, zkClient); |
| if (app == null || app.contains(cluster.app.name)) { |
| clusterStatus.add(cluster); |
| requiredAppCluster.add(cluster.clusterName); |
| } |
| } else { |
| logger.error("/s4/clusters/" + clusterName + " doesn't exist"); |
| } |
| } catch (Exception e) { |
| logger.error("Cannot get the status of " + clusterName, e); |
| } |
| } |
| |
| List<String> streams = statusArgs.streams; |
| if (streams == null) { |
| // Load all streams published |
| streams = zkClient.getChildren("/s4/streams"); |
| } |
| |
| for (String streamName : streams) { |
| try { |
| if (zkClient.exists("/s4/streams/" + streamName)) { |
| Stream stream = new Stream(streamName, zkClient); |
| if (app == null) { |
| streamStatus.add(stream); |
| } else { |
| for (String cluster : requiredAppCluster) { |
| if (stream.containsCluster(cluster)) { |
| streamStatus.add(stream); |
| break; |
| } |
| } |
| } |
| } else { |
| logger.error("/s4/streams/" + streamName + " doesn't exist"); |
| } |
| } catch (Exception e) { |
| logger.error("Cannot get the status of " + streamName, e); |
| } |
| } |
| |
| System.out.println(); |
| showAppsStatus(clusterStatus); |
| System.out.println("\n\n"); |
| showClustersStatus(clusterStatus); |
| System.out.println("\n\n"); |
| showStreamsStatus(streamStatus); |
| System.out.println("\n\n"); |
| |
| } catch (Exception e) { |
| logger.error("Cannot get the status of S4", e); |
| } |
| |
| } |
| |
| @Parameters(commandNames = "s4 status", commandDescription = "Show status of S4", separators = "=") |
| static class StatusArgs extends S4ArgsBase { |
| |
| @Parameter(names = { "-app" }, description = "Only show status of specified S4 application(s)", required = false) |
| List<String> apps; |
| |
| @Parameter(names = { "-c", "-cluster" }, description = "Only show status of specified S4 cluster(s)", required = false) |
| List<String> clusters; |
| |
| @Parameter(names = { "-s", "-stream" }, description = "Only show status of specified published stream(s)", required = false) |
| List<String> streams; |
| |
| @Parameter(names = "-zk", description = "ZooKeeper connection string") |
| String zkConnectionString = "localhost:2181"; |
| |
| @Parameter(names = "-timeout", description = "Connection timeout to Zookeeper, in ms") |
| int timeout = 10000; |
| } |
| |
| private static void showAppsStatus(List<Cluster> clusters) { |
| System.out.println("App Status"); |
| System.out.println(generateEdge(130)); |
| System.out.format("%-20s%-20s%-90s%n", inMiddle("Name", 20), inMiddle("Cluster", 20), inMiddle("URI", 90)); |
| System.out.println(generateEdge(130)); |
| for (Cluster cluster : clusters) { |
| if (!NONE.equals(cluster.app.name)) { |
| System.out.format("%-20s%-20s%-90s%n", inMiddle(cluster.app.name, 20), |
| inMiddle(cluster.app.cluster, 20), cluster.app.uri); |
| } |
| } |
| System.out.println(generateEdge(130)); |
| |
| } |
| |
| private static void showClustersStatus(List<Cluster> clusters) { |
| System.out.println("Cluster Status"); |
| System.out.println(generateEdge(130)); |
| System.out.format("%-50s%-80s%n", " ", inMiddle("Active nodes", 80)); |
| System.out.format("%-20s%-20s%-10s%s%n", inMiddle("Name", 20), inMiddle("App", 20), inMiddle("Tasks", 10), |
| generateEdge(80)); |
| System.out.format("%-50s%-10s%-10s%-50s%-10s%n", " ", inMiddle("Number", 8), inMiddle("Task id", 10), |
| inMiddle("Host", 50), inMiddle("Port", 8)); |
| System.out.println(generateEdge(130)); |
| |
| for (Cluster cluster : clusters) { |
| System.out.format("%-20s%-20s%-10s%-10s", inMiddle(cluster.clusterName, 20), |
| inMiddle(cluster.app.name, 20), inMiddle("" + cluster.taskNumber, 8), |
| inMiddle("" + cluster.nodes.size(), 8)); |
| boolean first = true; |
| for (ClusterNode node : cluster.nodes) { |
| if (first) { |
| first = false; |
| } else { |
| System.out.format("%n%-60s", " "); |
| } |
| System.out.format("%-10s%-50s%-10s", inMiddle("" + node.getTaskId(), 10), |
| inMiddle(node.getMachineName(), 50), inMiddle(node.getPort() + "", 10)); |
| } |
| System.out.println(); |
| } |
| System.out.println(generateEdge(130)); |
| } |
| |
| private static void showStreamsStatus(List<Stream> streams) { |
| System.out.println("Stream Status"); |
| System.out.println(generateEdge(130)); |
| System.out.format("%-20s%-55s%-55s%n", inMiddle("Name", 20), inMiddle("Producers", 55), |
| inMiddle("Consumers", 55)); |
| System.out.println(generateEdge(130)); |
| |
| for (Stream stream : streams) { |
| System.out.format("%-20s%-55s%-55s%n", inMiddle(stream.streamName, 20), |
| inMiddle(getFormatString(stream.producers, stream.clusterAppMap), 55), |
| inMiddle(getFormatString(stream.consumers, stream.clusterAppMap), 55)); |
| } |
| System.out.println(generateEdge(130)); |
| |
| } |
| |
| private static String inMiddle(String content, int width) { |
| int i = (width - content.length()) / 2; |
| return String.format("%" + i + "s%s", " ", content); |
| } |
| |
| private static String generateEdge(int length) { |
| StringBuilder sb = new StringBuilder(); |
| for (int i = 0; i < length; i++) { |
| sb.append("-"); |
| } |
| return sb.toString(); |
| } |
| |
| /** |
| * show as cluster1(app1), cluster2(app2) |
| * |
| * @param clusters |
| * cluster list |
| * @param clusterAppMap |
| * <cluster,app> |
| * @return |
| */ |
| private static String getFormatString(Collection<String> clusters, Map<String, String> clusterAppMap) { |
| if (clusters == null || clusters.size() == 0) { |
| return NONE; |
| } else { |
| // show as: cluster1(app1), cluster2(app2) |
| StringBuilder sb = new StringBuilder(); |
| for (String cluster : clusters) { |
| String app = clusterAppMap.get(cluster); |
| sb.append(cluster); |
| if (!NONE.equals(app)) { |
| sb.append("(").append(app).append(")"); |
| } |
| sb.append(" "); |
| } |
| return sb.toString(); |
| } |
| } |
| |
| static class Stream { |
| |
| private final ZkClient zkClient; |
| private final String consumerPath; |
| private final String producerPath; |
| |
| String streamName; |
| Set<String> producers = new HashSet<String>();// cluster name |
| Set<String> consumers = new HashSet<String>();// cluster name |
| |
| Map<String, String> clusterAppMap = Maps.newHashMap(); |
| |
| public Stream(String streamName, ZkClient zkClient) throws Exception { |
| this.streamName = streamName; |
| this.zkClient = zkClient; |
| this.consumerPath = "/s4/streams/" + streamName + "/consumers"; |
| this.producerPath = "/s4/streams/" + streamName + "/producers"; |
| readStreamFromZk(); |
| } |
| |
| private void readStreamFromZk() throws Exception { |
| List<String> consumerNodes = zkClient.getChildren(consumerPath); |
| for (String node : consumerNodes) { |
| ZNRecord consumer = zkClient.readData(consumerPath + "/" + node, true); |
| consumers.add(consumer.getSimpleField("clusterName")); |
| } |
| |
| List<String> producerNodes = zkClient.getChildren(producerPath); |
| for (String node : producerNodes) { |
| ZNRecord consumer = zkClient.readData(producerPath + "/" + node, true); |
| producers.add(consumer.getSimpleField("clusterName")); |
| } |
| |
| getAppNames(); |
| } |
| |
| private void getAppNames() { |
| Set<String> clusters = new HashSet<String>(consumers); |
| clusters.addAll(producers); |
| for (String cluster : clusters) { |
| clusterAppMap.put(cluster, getApp(cluster, zkClient)); |
| } |
| } |
| |
| public boolean containsCluster(String cluster) { |
| if (producers.contains(cluster) || consumers.contains(cluster)) { |
| return true; |
| } |
| return false; |
| } |
| |
| private static String getApp(String clusterName, ZkClient zkClient) { |
| String appPath = "/s4/clusters/" + clusterName + "/app/s4App"; |
| if (zkClient.exists(appPath)) { |
| ZNRecord appRecord = zkClient.readData("/s4/clusters/" + clusterName + "/app/s4App"); |
| return appRecord.getSimpleField("name"); |
| } |
| return NONE; |
| } |
| } |
| |
| static class App { |
| private String name = NONE; |
| private String cluster; |
| private String uri = NONE; |
| } |
| |
| static class Cluster { |
| private final ZkClient zkClient; |
| private final String taskPath; |
| private final String processPath; |
| private final String appPath; |
| |
| String clusterName; |
| int taskNumber; |
| App app; |
| |
| List<ClusterNode> nodes = new ArrayList<ClusterNode>(); |
| |
| public Cluster(String clusterName, ZkClient zkClient) throws Exception { |
| this.clusterName = clusterName; |
| this.zkClient = zkClient; |
| this.taskPath = "/s4/clusters/" + clusterName + "/tasks"; |
| this.processPath = "/s4/clusters/" + clusterName + "/process"; |
| this.appPath = "/s4/clusters/" + clusterName + "/app/s4App"; |
| readClusterFromZk(); |
| } |
| |
| public void readClusterFromZk() throws Exception { |
| List<String> processes; |
| List<String> tasks; |
| |
| tasks = zkClient.getChildren(taskPath); |
| processes = zkClient.getChildren(processPath); |
| |
| taskNumber = tasks.size(); |
| |
| for (int i = 0; i < processes.size(); i++) { |
| ZNRecord process = zkClient.readData(processPath + "/" + processes.get(i), true); |
| if (process != null) { |
| int partition = Integer.parseInt(process.getSimpleField("partition")); |
| String host = process.getSimpleField("host"); |
| int port = Integer.parseInt(process.getSimpleField("port")); |
| String taskId = process.getSimpleField("taskId"); |
| ClusterNode node = new ClusterNode(partition, port, host, taskId); |
| nodes.add(node); |
| } |
| } |
| |
| app = new App(); |
| app.cluster = clusterName; |
| try { |
| ZNRecord appRecord = zkClient.readData(appPath); |
| app.name = appRecord.getSimpleField("name"); |
| app.uri = appRecord.getSimpleField("s4r_uri"); |
| } catch (ZkNoNodeException e) { |
| logger.warn(appPath + " doesn't exist"); |
| } |
| } |
| |
| } |
| |
| } |