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add iotdb-doap.rdf back (#10685)

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/iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/service/ConfigNode.java

/*
 * 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.iotdb.confignode.service;

import org.apache.iotdb.common.rpc.thrift.TConfigNodeLocation;
import org.apache.iotdb.common.rpc.thrift.TEndPoint;
import org.apache.iotdb.common.rpc.thrift.TSStatus;
import org.apache.iotdb.commons.client.ClientManagerMetrics;
import org.apache.iotdb.commons.concurrent.ThreadModule;
import org.apache.iotdb.commons.concurrent.ThreadName;
import org.apache.iotdb.commons.concurrent.ThreadPoolMetrics;
import org.apache.iotdb.commons.conf.IoTDBConstant;
import org.apache.iotdb.commons.exception.StartupException;
import org.apache.iotdb.commons.service.JMXService;
import org.apache.iotdb.commons.service.RegisterManager;
import org.apache.iotdb.commons.service.metric.MetricService;
import org.apache.iotdb.commons.utils.TestOnly;
import org.apache.iotdb.confignode.client.ConfigNodeRequestType;
import org.apache.iotdb.confignode.client.sync.SyncConfigNodeClientPool;
import org.apache.iotdb.confignode.conf.ConfigNodeConfig;
import org.apache.iotdb.confignode.conf.ConfigNodeConstant;
import org.apache.iotdb.confignode.conf.ConfigNodeDescriptor;
import org.apache.iotdb.confignode.conf.SystemPropertiesUtils;
import org.apache.iotdb.confignode.manager.ConfigManager;
import org.apache.iotdb.confignode.rpc.thrift.TConfigNodeRegisterReq;
import org.apache.iotdb.confignode.rpc.thrift.TConfigNodeRegisterResp;
import org.apache.iotdb.confignode.rpc.thrift.TConfigNodeRestartReq;
import org.apache.iotdb.confignode.service.thrift.ConfigNodeRPCService;
import org.apache.iotdb.confignode.service.thrift.ConfigNodeRPCServiceProcessor;
import org.apache.iotdb.db.service.metrics.ProcessMetrics;
import org.apache.iotdb.metrics.config.MetricConfigDescriptor;
import org.apache.iotdb.metrics.metricsets.UpTimeMetrics;
import org.apache.iotdb.metrics.metricsets.cpu.CpuUsageMetrics;
import org.apache.iotdb.metrics.metricsets.disk.DiskMetrics;
import org.apache.iotdb.metrics.metricsets.jvm.JvmMetrics;
import org.apache.iotdb.metrics.metricsets.logback.LogbackMetrics;
import org.apache.iotdb.metrics.metricsets.net.NetMetrics;
import org.apache.iotdb.metrics.metricsets.system.SystemMetrics;
import org.apache.iotdb.rpc.TSStatusCode;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.File;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.TimeUnit;

public class ConfigNode implements ConfigNodeMBean {

  private static final Logger LOGGER = LoggerFactory.getLogger(ConfigNode.class);

  private static final ConfigNodeConfig CONF = ConfigNodeDescriptor.getInstance().getConf();

  private static final int STARTUP_RETRY_NUM = 10;
  private static final int SCHEDULE_WAITING_RETRY_NUM = 20;
  private static final long STARTUP_RETRY_INTERVAL_IN_MS = TimeUnit.SECONDS.toMillis(3);

  private static final int SEED_CONFIG_NODE_ID = 0;

  private static final int INIT_NON_SEED_CONFIG_NODE_ID = -1;

  private static final String CONFIGURATION = "IoTDB configuration: {}";

  private final String mbeanName =
      String.format(
          "%s:%s=%s",
          ConfigNodeConstant.CONFIGNODE_PACKAGE, ConfigNodeConstant.JMX_TYPE, "ConfigNode");
  private final RegisterManager registerManager = new RegisterManager();

  private ConfigManager configManager;

  private ConfigNode() {
    // We do not init anything here, so that we can re-initialize the instance in IT.
  }

  public static void main(String[] args) {
    LOGGER.info(
        "{} environment variables: {}",
        ConfigNodeConstant.GLOBAL_NAME,
        ConfigNodeConfig.getEnvironmentVariables());
    LOGGER.info(
        "{} default charset is: {}",
        ConfigNodeConstant.GLOBAL_NAME,
        Charset.defaultCharset().displayName());
    new ConfigNodeCommandLine().doMain(args);
  }

  public void active() {
    LOGGER.info("Activating {}...", ConfigNodeConstant.GLOBAL_NAME);

    try {
      processPid();
      // Add shutdown hook
      Runtime.getRuntime().addShutdownHook(new ConfigNodeShutdownHook());
      // Set up internal services
      setUpInternalServices();
      // Init ConfigManager
      initConfigManager();

      /* Restart */
      if (SystemPropertiesUtils.isRestarted()) {
        LOGGER.info("{} is in restarting process...", ConfigNodeConstant.GLOBAL_NAME);

        if (!SystemPropertiesUtils.isSeedConfigNode()) {
          // The non-seed-ConfigNodes should send restart request
          sendRestartConfigNodeRequest();
        }

        configManager.initConsensusManager();
        setUpMetricService();
        // Notice: We always set up Seed-ConfigNode's RPC service lastly to ensure
        // that the external service is not provided until ConfigNode is fully available
        setUpRPCService();
        LOGGER.info(CONFIGURATION, CONF.getConfigMessage());
        LOGGER.info(
            "{} has successfully restarted and joined the cluster: {}.",
            ConfigNodeConstant.GLOBAL_NAME,
            CONF.getClusterName());
        return;
      }

      /* Initial startup of Seed-ConfigNode */
      if (ConfigNodeDescriptor.getInstance().isSeedConfigNode()) {
        LOGGER.info(
            "The current {} is now starting as the Seed-ConfigNode.",
            ConfigNodeConstant.GLOBAL_NAME);

        /* Always set ClusterId and ConfigNodeId before initConsensusManager */
        CONF.setConfigNodeId(SEED_CONFIG_NODE_ID);
        configManager.initConsensusManager();

        // Persistence system parameters after the consensusGroup is built,
        // or the consensusGroup will not be initialized successfully otherwise.
        SystemPropertiesUtils.storeSystemParameters();

        // Seed-ConfigNode should apply itself when first start
        configManager
            .getNodeManager()
            .applyConfigNode(
                new TConfigNodeLocation(
                    SEED_CONFIG_NODE_ID,
                    new TEndPoint(CONF.getInternalAddress(), CONF.getInternalPort()),
                    new TEndPoint(CONF.getInternalAddress(), CONF.getConsensusPort())));
        setUpMetricService();
        // Notice: We always set up Seed-ConfigNode's RPC service lastly to ensure
        // that the external service is not provided until Seed-ConfigNode is fully initialized
        setUpRPCService();
        // The initial startup of Seed-ConfigNode finished
        LOGGER.info(CONFIGURATION, CONF.getConfigMessage());
        LOGGER.info(
            "{} has successfully started and joined the cluster: {}.",
            ConfigNodeConstant.GLOBAL_NAME,
            CONF.getClusterName());
        return;
      }

      /* Initial startup of Non-Seed-ConfigNode */
      // We set up Non-Seed ConfigNode's RPC service before sending the register request
      // in order to facilitate the scheduling of capacity expansion process in ConfigNode-leader
      setUpRPCService();
      sendRegisterConfigNodeRequest();
      // The initial startup of Non-Seed-ConfigNode is not yet finished,
      // we should wait for leader's scheduling
      LOGGER.info(CONFIGURATION, CONF.getConfigMessage());
      LOGGER.info(
          "{} {} has registered successfully. Waiting for the leader's scheduling to join the cluster: {}.",
          ConfigNodeConstant.GLOBAL_NAME,
          CONF.getConfigNodeId(),
          CONF.getClusterName());
      setUpMetricService();

      boolean isJoinedCluster = false;
      for (int retry = 0; retry < SCHEDULE_WAITING_RETRY_NUM; retry++) {
        if (!configManager
            .getConsensusManager()
            .getConsensusImpl()
            .getAllConsensusGroupIds()
            .isEmpty()) {
          isJoinedCluster = true;
          break;
        }

        try {
          TimeUnit.MILLISECONDS.sleep(STARTUP_RETRY_INTERVAL_IN_MS);
        } catch (InterruptedException e) {
          LOGGER.warn("Waiting leader's scheduling is interrupted.");
          Thread.currentThread().interrupt();
        }
      }

      if (!isJoinedCluster) {
        LOGGER.error(
            "The current ConfigNode can't joined the cluster because leader's scheduling failed. The possible cause is that the ip:port configuration is incorrect.");
        stop();
      }
    } catch (StartupException | IOException e) {
      LOGGER.error("Meet error while starting up.", e);
      stop();
    }
  }

  void processPid() {
    String pidFile = System.getProperty(ConfigNodeConstant.IOTDB_PIDFILE);
    if (pidFile != null) {
      new File(pidFile).deleteOnExit();
    }
  }

  private void setUpInternalServices() throws StartupException {
    // Setup JMXService
    registerManager.register(new JMXService());
    JMXService.registerMBean(this, mbeanName);

    LOGGER.info("Successfully setup internal services.");
  }

  private void setUpMetricService() throws StartupException {
    MetricConfigDescriptor.getInstance().getMetricConfig().setNodeId(CONF.getConfigNodeId());
    registerManager.register(MetricService.getInstance());
    // Bind predefined metric sets
    MetricService.getInstance().addMetricSet(new UpTimeMetrics());
    MetricService.getInstance().addMetricSet(new JvmMetrics());
    MetricService.getInstance().addMetricSet(new LogbackMetrics());
    MetricService.getInstance().addMetricSet(new ProcessMetrics());
    MetricService.getInstance().addMetricSet(new DiskMetrics(IoTDBConstant.CN_ROLE));
    MetricService.getInstance().addMetricSet(new NetMetrics(IoTDBConstant.CN_ROLE));
    MetricService.getInstance().addMetricSet(ClientManagerMetrics.getInstance());
    MetricService.getInstance().addMetricSet(ThreadPoolMetrics.getInstance());
    initCpuMetrics();
    initSystemMetrics();
  }

  private void initSystemMetrics() {
    ArrayList<String> diskDirs = new ArrayList<>();
    diskDirs.add(CONF.getSystemDir());
    diskDirs.add(CONF.getConsensusDir());
    MetricService.getInstance().addMetricSet(new SystemMetrics(diskDirs));
  }

  private void initCpuMetrics() {
    List<String> threadModules = new ArrayList<>();
    Arrays.stream(ThreadModule.values()).forEach(x -> threadModules.add(x.toString()));
    List<String> pools = new ArrayList<>();
    Arrays.stream(ThreadName.values()).forEach(x -> pools.add(x.name()));
    MetricService.getInstance()
        .addMetricSet(
            new CpuUsageMetrics(
                threadModules,
                pools,
                x -> ThreadName.getModuleTheThreadBelongs(x).toString(),
                x -> ThreadName.getThreadPoolTheThreadBelongs(x).name()));
  }

  private void initConfigManager() {
    try {
      configManager = new ConfigManager();
    } catch (IOException e) {
      LOGGER.error("Can't start ConfigNode consensus group!", e);
      stop();
    }
    // Add some Metrics for configManager
    configManager.addMetrics();
    LOGGER.info("Successfully initialize ConfigManager.");
  }

  /**
   * Register Non-seed ConfigNode when first startup.
   *
   * @throws StartupException if register failed.
   * @throws IOException if consensus manager init failed.
   */
  private void sendRegisterConfigNodeRequest() throws StartupException, IOException {
    TConfigNodeRegisterReq req =
        new TConfigNodeRegisterReq(
            configManager.getClusterParameters(),
            new TConfigNodeLocation(
                INIT_NON_SEED_CONFIG_NODE_ID,
                new TEndPoint(CONF.getInternalAddress(), CONF.getInternalPort()),
                new TEndPoint(CONF.getInternalAddress(), CONF.getConsensusPort())));

    TEndPoint targetConfigNode = CONF.getTargetConfigNode();
    if (targetConfigNode == null) {
      LOGGER.error(
          "Please set the cn_target_config_node_list parameter in iotdb-confignode.properties file.");
      throw new StartupException("The targetConfigNode setting in conf is empty");
    }

    for (int retry = 0; retry < STARTUP_RETRY_NUM; retry++) {
      TSStatus status;
      TConfigNodeRegisterResp resp = null;
      Object obj =
          SyncConfigNodeClientPool.getInstance()
              .sendSyncRequestToConfigNodeWithRetry(
                  targetConfigNode, req, ConfigNodeRequestType.REGISTER_CONFIG_NODE);

      if (obj instanceof TConfigNodeRegisterResp) {
        resp = (TConfigNodeRegisterResp) obj;
        status = resp.getStatus();
      } else {
        status = (TSStatus) obj;
      }

      if (status.getCode() == TSStatusCode.SUCCESS_STATUS.getStatusCode()) {
        if (resp == null) {
          LOGGER.error("The result of register ConfigNode is empty!");
          throw new StartupException("The result of register ConfigNode is empty!");
        }
        /* Always set ConfigNodeId before initConsensusManager */
        CONF.setConfigNodeId(resp.getConfigNodeId());
        configManager.initConsensusManager();
        return;
      } else if (status.getCode() == TSStatusCode.REDIRECTION_RECOMMEND.getStatusCode()) {
        targetConfigNode = status.getRedirectNode();
        LOGGER.info("ConfigNode need redirect to  {}.", targetConfigNode);
      } else {
        throw new StartupException(status.getMessage());
      }

      try {
        TimeUnit.MILLISECONDS.sleep(STARTUP_RETRY_INTERVAL_IN_MS);
      } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
        throw new StartupException("Register ConfigNode failed!");
      }
    }

    LOGGER.error(
        "The current ConfigNode can't send register request to the ConfigNode-leader after all retries!");
    stop();
  }

  private void sendRestartConfigNodeRequest() throws StartupException {
    TConfigNodeRestartReq req =
        new TConfigNodeRestartReq(
            CONF.getClusterName(),
            new TConfigNodeLocation(
                CONF.getConfigNodeId(),
                new TEndPoint(CONF.getInternalAddress(), CONF.getInternalPort()),
                new TEndPoint(CONF.getInternalAddress(), CONF.getConsensusPort())));

    TEndPoint targetConfigNode = CONF.getTargetConfigNode();
    if (targetConfigNode == null) {
      LOGGER.error(
          "Please set the cn_target_config_node_list parameter in iotdb-confignode.properties file.");
      throw new StartupException("The targetConfigNode setting in conf is empty");
    }

    for (int retry = 0; retry < STARTUP_RETRY_NUM; retry++) {
      TSStatus status =
          (TSStatus)
              SyncConfigNodeClientPool.getInstance()
                  .sendSyncRequestToConfigNodeWithRetry(
                      targetConfigNode, req, ConfigNodeRequestType.RESTART_CONFIG_NODE);

      if (status.getCode() == TSStatusCode.SUCCESS_STATUS.getStatusCode()) {
        LOGGER.info("Registration request of current ConfigNode is accepted.");
        return;
      } else if (status.getCode() == TSStatusCode.REDIRECTION_RECOMMEND.getStatusCode()) {
        targetConfigNode = status.getRedirectNode();
        LOGGER.info("ConfigNode need redirect to  {}.", targetConfigNode);
      } else {
        throw new StartupException(status.getMessage());
      }

      try {
        TimeUnit.MILLISECONDS.sleep(STARTUP_RETRY_INTERVAL_IN_MS);
      } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
        throw new StartupException("Register ConfigNode failed! ");
      }
    }
  }

  private void setUpRPCService() throws StartupException {
    // Setup RPCService
    ConfigNodeRPCService configNodeRPCService = new ConfigNodeRPCService();
    ConfigNodeRPCServiceProcessor configNodeRPCServiceProcessor =
        new ConfigNodeRPCServiceProcessor(configManager);
    configNodeRPCService.initSyncedServiceImpl(configNodeRPCServiceProcessor);
    registerManager.register(configNodeRPCService);
  }

  /**
   * Deactivating ConfigNode internal services.
   *
   * @throws IOException if close configManager failed.
   */
  public void deactivate() throws IOException {
    LOGGER.info("Deactivating {}...", ConfigNodeConstant.GLOBAL_NAME);
    registerManager.deregisterAll();
    JMXService.deregisterMBean(mbeanName);
    if (configManager != null) {
      configManager.close();
    }
    LOGGER.info("{} is deactivated.", ConfigNodeConstant.GLOBAL_NAME);
  }

  public void stop() {
    try {
      deactivate();
    } catch (IOException e) {
      LOGGER.error("Meet error when deactivate ConfigNode", e);
    }
    System.exit(-1);
  }

  public ConfigManager getConfigManager() {
    return configManager;
  }

  @TestOnly
  public void setConfigManager(ConfigManager configManager) {
    this.configManager = configManager;
  }

  private static class ConfigNodeHolder {

    private static final ConfigNode INSTANCE = new ConfigNode();

    private ConfigNodeHolder() {
      // Empty constructor
    }
  }

  public static ConfigNode getInstance() {
    return ConfigNodeHolder.INSTANCE;
  }
}

1	/*
2	* Licensed to the Apache Software Foundation (ASF) under one
3	* or more contributor license agreements. See the NOTICE file
4	* distributed with this work for additional information
5	* regarding copyright ownership. The ASF licenses this file
6	* to you under the Apache License, Version 2.0 (the
7	* "License"); you may not use this file except in compliance
8	* with the License. You may obtain a copy of the License at
9	*
10	* http://www.apache.org/licenses/LICENSE-2.0
11	*
12	* Unless required by applicable law or agreed to in writing,
13	* software distributed under the License is distributed on an
14	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15	* KIND, either express or implied. See the License for the
16	* specific language governing permissions and limitations
17	* under the License.
18	*/
19
20	package org.apache.iotdb.confignode.service;
21
22	import org.apache.iotdb.common.rpc.thrift.TConfigNodeLocation;
23	import org.apache.iotdb.common.rpc.thrift.TEndPoint;
24	import org.apache.iotdb.common.rpc.thrift.TSStatus;
25	import org.apache.iotdb.commons.client.ClientManagerMetrics;
26	import org.apache.iotdb.commons.concurrent.ThreadModule;
27	import org.apache.iotdb.commons.concurrent.ThreadName;
28	import org.apache.iotdb.commons.concurrent.ThreadPoolMetrics;
29	import org.apache.iotdb.commons.conf.IoTDBConstant;
30	import org.apache.iotdb.commons.exception.StartupException;
31	import org.apache.iotdb.commons.service.JMXService;
32	import org.apache.iotdb.commons.service.RegisterManager;
33	import org.apache.iotdb.commons.service.metric.MetricService;
34	import org.apache.iotdb.commons.utils.TestOnly;
35	import org.apache.iotdb.confignode.client.ConfigNodeRequestType;
36	import org.apache.iotdb.confignode.client.sync.SyncConfigNodeClientPool;
37	import org.apache.iotdb.confignode.conf.ConfigNodeConfig;
38	import org.apache.iotdb.confignode.conf.ConfigNodeConstant;
39	import org.apache.iotdb.confignode.conf.ConfigNodeDescriptor;
40	import org.apache.iotdb.confignode.conf.SystemPropertiesUtils;
41	import org.apache.iotdb.confignode.manager.ConfigManager;
42	import org.apache.iotdb.confignode.rpc.thrift.TConfigNodeRegisterReq;
43	import org.apache.iotdb.confignode.rpc.thrift.TConfigNodeRegisterResp;
44	import org.apache.iotdb.confignode.rpc.thrift.TConfigNodeRestartReq;
45	import org.apache.iotdb.confignode.service.thrift.ConfigNodeRPCService;
46	import org.apache.iotdb.confignode.service.thrift.ConfigNodeRPCServiceProcessor;
47	import org.apache.iotdb.db.service.metrics.ProcessMetrics;
48	import org.apache.iotdb.metrics.config.MetricConfigDescriptor;
49	import org.apache.iotdb.metrics.metricsets.UpTimeMetrics;
50	import org.apache.iotdb.metrics.metricsets.cpu.CpuUsageMetrics;
51	import org.apache.iotdb.metrics.metricsets.disk.DiskMetrics;
52	import org.apache.iotdb.metrics.metricsets.jvm.JvmMetrics;
53	import org.apache.iotdb.metrics.metricsets.logback.LogbackMetrics;
54	import org.apache.iotdb.metrics.metricsets.net.NetMetrics;
55	import org.apache.iotdb.metrics.metricsets.system.SystemMetrics;
56	import org.apache.iotdb.rpc.TSStatusCode;
57
58	import org.slf4j.Logger;
59	import org.slf4j.LoggerFactory;
60
61	import java.io.File;
62	import java.io.IOException;
63	import java.nio.charset.Charset;
64	import java.util.ArrayList;
65	import java.util.Arrays;
66	import java.util.List;
67	import java.util.concurrent.TimeUnit;
68
69	public class ConfigNode implements ConfigNodeMBean {
70
71	private static final Logger LOGGER = LoggerFactory.getLogger(ConfigNode.class);	1✔
72
73	private static final ConfigNodeConfig CONF = ConfigNodeDescriptor.getInstance().getConf();	1✔
74
75	private static final int STARTUP_RETRY_NUM = 10;
76	private static final int SCHEDULE_WAITING_RETRY_NUM = 20;
77	private static final long STARTUP_RETRY_INTERVAL_IN_MS = TimeUnit.SECONDS.toMillis(3);	1✔
78
79	private static final int SEED_CONFIG_NODE_ID = 0;
80
81	private static final int INIT_NON_SEED_CONFIG_NODE_ID = -1;
82
83	private static final String CONFIGURATION = "IoTDB configuration: {}";
84
85	private final String mbeanName =	1✔
86	String.format(	1✔
87	"%s:%s=%s",
88	ConfigNodeConstant.CONFIGNODE_PACKAGE, ConfigNodeConstant.JMX_TYPE, "ConfigNode");
89	private final RegisterManager registerManager = new RegisterManager();	1✔
90
91	private ConfigManager configManager;
92
93	private ConfigNode() {	1✔
94	// We do not init anything here, so that we can re-initialize the instance in IT.
95	}	1✔
96
97	public static void main(String[] args) {
98	LOGGER.info(	×
99	"{} environment variables: {}",
100	ConfigNodeConstant.GLOBAL_NAME,
101	ConfigNodeConfig.getEnvironmentVariables());	×
102	LOGGER.info(	×
103	"{} default charset is: {}",
104	ConfigNodeConstant.GLOBAL_NAME,
105	Charset.defaultCharset().displayName());	×
106	new ConfigNodeCommandLine().doMain(args);	×
107	}	×
108
109	public void active() {
110	LOGGER.info("Activating {}...", ConfigNodeConstant.GLOBAL_NAME);	×
111
112	try {
113	processPid();	×
114	// Add shutdown hook
115	Runtime.getRuntime().addShutdownHook(new ConfigNodeShutdownHook());	×
116	// Set up internal services
117	setUpInternalServices();	×
118	// Init ConfigManager
119	initConfigManager();	×
120
121	/* Restart */
122	if (SystemPropertiesUtils.isRestarted()) {	×
123	LOGGER.info("{} is in restarting process...", ConfigNodeConstant.GLOBAL_NAME);	×
124
125	if (!SystemPropertiesUtils.isSeedConfigNode()) {	×
126	// The non-seed-ConfigNodes should send restart request
127	sendRestartConfigNodeRequest();	×
128	}
129
130	configManager.initConsensusManager();	×
131	setUpMetricService();	×
132	// Notice: We always set up Seed-ConfigNode's RPC service lastly to ensure
133	// that the external service is not provided until ConfigNode is fully available
134	setUpRPCService();	×
135	LOGGER.info(CONFIGURATION, CONF.getConfigMessage());	×
136	LOGGER.info(	×
137	"{} has successfully restarted and joined the cluster: {}.",
138	ConfigNodeConstant.GLOBAL_NAME,
139	CONF.getClusterName());	×
140	return;	×
141	}
142
143	/* Initial startup of Seed-ConfigNode */
144	if (ConfigNodeDescriptor.getInstance().isSeedConfigNode()) {	×
145	LOGGER.info(	×
146	"The current {} is now starting as the Seed-ConfigNode.",
147	ConfigNodeConstant.GLOBAL_NAME);
148
149	/* Always set ClusterId and ConfigNodeId before initConsensusManager */
150	CONF.setConfigNodeId(SEED_CONFIG_NODE_ID);	×
151	configManager.initConsensusManager();	×
152
153	// Persistence system parameters after the consensusGroup is built,
154	// or the consensusGroup will not be initialized successfully otherwise.
155	SystemPropertiesUtils.storeSystemParameters();	×
156
157	// Seed-ConfigNode should apply itself when first start
158	configManager	×
159	.getNodeManager()	×
160	.applyConfigNode(	×
161	new TConfigNodeLocation(
162	SEED_CONFIG_NODE_ID,
163	new TEndPoint(CONF.getInternalAddress(), CONF.getInternalPort()),	×
164	new TEndPoint(CONF.getInternalAddress(), CONF.getConsensusPort())));	×
165	setUpMetricService();	×
166	// Notice: We always set up Seed-ConfigNode's RPC service lastly to ensure
167	// that the external service is not provided until Seed-ConfigNode is fully initialized
168	setUpRPCService();	×
169	// The initial startup of Seed-ConfigNode finished
170	LOGGER.info(CONFIGURATION, CONF.getConfigMessage());	×
171	LOGGER.info(	×
172	"{} has successfully started and joined the cluster: {}.",
173	ConfigNodeConstant.GLOBAL_NAME,
174	CONF.getClusterName());	×
175	return;	×
176	}
177
178	/* Initial startup of Non-Seed-ConfigNode */
179	// We set up Non-Seed ConfigNode's RPC service before sending the register request
180	// in order to facilitate the scheduling of capacity expansion process in ConfigNode-leader
181	setUpRPCService();	×
182	sendRegisterConfigNodeRequest();	×
183	// The initial startup of Non-Seed-ConfigNode is not yet finished,
184	// we should wait for leader's scheduling
185	LOGGER.info(CONFIGURATION, CONF.getConfigMessage());	×
186	LOGGER.info(	×
187	"{} {} has registered successfully. Waiting for the leader's scheduling to join the cluster: {}.",
188	ConfigNodeConstant.GLOBAL_NAME,
189	CONF.getConfigNodeId(),	×
190	CONF.getClusterName());	×
191	setUpMetricService();	×
192
193	boolean isJoinedCluster = false;	×
194	for (int retry = 0; retry < SCHEDULE_WAITING_RETRY_NUM; retry++) {	×
195	if (!configManager	×
196	.getConsensusManager()	×
197	.getConsensusImpl()	×
198	.getAllConsensusGroupIds()	×
199	.isEmpty()) {	×
200	isJoinedCluster = true;	×
201	break;	×
202	}
203
204	try {
205	TimeUnit.MILLISECONDS.sleep(STARTUP_RETRY_INTERVAL_IN_MS);	×
206	} catch (InterruptedException e) {	×
207	LOGGER.warn("Waiting leader's scheduling is interrupted.");	×
208	Thread.currentThread().interrupt();	×
209	}	×
210	}
211
212	if (!isJoinedCluster) {	×
213	LOGGER.error(	×
214	"The current ConfigNode can't joined the cluster because leader's scheduling failed. The possible cause is that the ip:port configuration is incorrect.");
215	stop();	×
216	}
217	} catch (StartupException \| IOException e) {	×
218	LOGGER.error("Meet error while starting up.", e);	×
219	stop();	×
220	}	×
221	}	×
222
223	void processPid() {
224	String pidFile = System.getProperty(ConfigNodeConstant.IOTDB_PIDFILE);	×
225	if (pidFile != null) {	×
226	new File(pidFile).deleteOnExit();	×
227	}
228	}	×
229
230	private void setUpInternalServices() throws StartupException {
231	// Setup JMXService
232	registerManager.register(new JMXService());	×
233	JMXService.registerMBean(this, mbeanName);	×
234
235	LOGGER.info("Successfully setup internal services.");	×
236	}	×
237
238	private void setUpMetricService() throws StartupException {
239	MetricConfigDescriptor.getInstance().getMetricConfig().setNodeId(CONF.getConfigNodeId());	×
240	registerManager.register(MetricService.getInstance());	×
241	// Bind predefined metric sets
242	MetricService.getInstance().addMetricSet(new UpTimeMetrics());	×
243	MetricService.getInstance().addMetricSet(new JvmMetrics());	×
244	MetricService.getInstance().addMetricSet(new LogbackMetrics());	×
245	MetricService.getInstance().addMetricSet(new ProcessMetrics());	×
246	MetricService.getInstance().addMetricSet(new DiskMetrics(IoTDBConstant.CN_ROLE));	×
247	MetricService.getInstance().addMetricSet(new NetMetrics(IoTDBConstant.CN_ROLE));	×
248	MetricService.getInstance().addMetricSet(ClientManagerMetrics.getInstance());	×
249	MetricService.getInstance().addMetricSet(ThreadPoolMetrics.getInstance());	×
250	initCpuMetrics();	×
251	initSystemMetrics();	×
252	}	×
253
254	private void initSystemMetrics() {
255	ArrayList<String> diskDirs = new ArrayList<>();	×
256	diskDirs.add(CONF.getSystemDir());	×
257	diskDirs.add(CONF.getConsensusDir());	×
258	MetricService.getInstance().addMetricSet(new SystemMetrics(diskDirs));	×
259	}	×
260
261	private void initCpuMetrics() {
262	List<String> threadModules = new ArrayList<>();	×
263	Arrays.stream(ThreadModule.values()).forEach(x -> threadModules.add(x.toString()));	×
264	List<String> pools = new ArrayList<>();	×
265	Arrays.stream(ThreadName.values()).forEach(x -> pools.add(x.name()));	×
266	MetricService.getInstance()	×
267	.addMetricSet(	×
268	new CpuUsageMetrics(
269	threadModules,
270	pools,
271	x -> ThreadName.getModuleTheThreadBelongs(x).toString(),	×
272	x -> ThreadName.getThreadPoolTheThreadBelongs(x).name()));	×
273	}	×
274
275	private void initConfigManager() {
276	try {
277	configManager = new ConfigManager();	×
278	} catch (IOException e) {	×
279	LOGGER.error("Can't start ConfigNode consensus group!", e);	×
280	stop();	×
281	}	×
282	// Add some Metrics for configManager
283	configManager.addMetrics();	×
284	LOGGER.info("Successfully initialize ConfigManager.");	×
285	}	×
286
287	/**
288	* Register Non-seed ConfigNode when first startup.
289	*
290	* @throws StartupException if register failed.
291	* @throws IOException if consensus manager init failed.
292	*/
293	private void sendRegisterConfigNodeRequest() throws StartupException, IOException {
294	TConfigNodeRegisterReq req =	×
295	new TConfigNodeRegisterReq(
296	configManager.getClusterParameters(),	×
297	new TConfigNodeLocation(
298	INIT_NON_SEED_CONFIG_NODE_ID,
299	new TEndPoint(CONF.getInternalAddress(), CONF.getInternalPort()),	×
300	new TEndPoint(CONF.getInternalAddress(), CONF.getConsensusPort())));	×
301
302	TEndPoint targetConfigNode = CONF.getTargetConfigNode();	×
303	if (targetConfigNode == null) {	×
304	LOGGER.error(	×
305	"Please set the cn_target_config_node_list parameter in iotdb-confignode.properties file.");
306	throw new StartupException("The targetConfigNode setting in conf is empty");	×
307	}
308
309	for (int retry = 0; retry < STARTUP_RETRY_NUM; retry++) {	×
310	TSStatus status;
311	TConfigNodeRegisterResp resp = null;	×
312	Object obj =
313	SyncConfigNodeClientPool.getInstance()	×
314	.sendSyncRequestToConfigNodeWithRetry(	×
315	targetConfigNode, req, ConfigNodeRequestType.REGISTER_CONFIG_NODE);
316
317	if (obj instanceof TConfigNodeRegisterResp) {	×
318	resp = (TConfigNodeRegisterResp) obj;	×
319	status = resp.getStatus();	×
320	} else {
321	status = (TSStatus) obj;	×
322	}
323
324	if (status.getCode() == TSStatusCode.SUCCESS_STATUS.getStatusCode()) {	×
325	if (resp == null) {	×
326	LOGGER.error("The result of register ConfigNode is empty!");	×
327	throw new StartupException("The result of register ConfigNode is empty!");	×
328	}
329	/* Always set ConfigNodeId before initConsensusManager */
330	CONF.setConfigNodeId(resp.getConfigNodeId());	×
331	configManager.initConsensusManager();	×
332	return;	×
333	} else if (status.getCode() == TSStatusCode.REDIRECTION_RECOMMEND.getStatusCode()) {	×
334	targetConfigNode = status.getRedirectNode();	×
335	LOGGER.info("ConfigNode need redirect to {}.", targetConfigNode);	×
336	} else {
337	throw new StartupException(status.getMessage());	×
338	}
339
340	try {
341	TimeUnit.MILLISECONDS.sleep(STARTUP_RETRY_INTERVAL_IN_MS);	×
342	} catch (InterruptedException e) {	×
343	Thread.currentThread().interrupt();	×
344	throw new StartupException("Register ConfigNode failed!");	×
345	}	×
346	}
347
348	LOGGER.error(	×
349	"The current ConfigNode can't send register request to the ConfigNode-leader after all retries!");
350	stop();	×
351	}	×
352
353	private void sendRestartConfigNodeRequest() throws StartupException {
354	TConfigNodeRestartReq req =	×
355	new TConfigNodeRestartReq(
356	CONF.getClusterName(),	×
357	new TConfigNodeLocation(
358	CONF.getConfigNodeId(),	×
359	new TEndPoint(CONF.getInternalAddress(), CONF.getInternalPort()),	×
360	new TEndPoint(CONF.getInternalAddress(), CONF.getConsensusPort())));	×
361
362	TEndPoint targetConfigNode = CONF.getTargetConfigNode();	×
363	if (targetConfigNode == null) {	×
364	LOGGER.error(	×
365	"Please set the cn_target_config_node_list parameter in iotdb-confignode.properties file.");
366	throw new StartupException("The targetConfigNode setting in conf is empty");	×
367	}
368
369	for (int retry = 0; retry < STARTUP_RETRY_NUM; retry++) {	×
370	TSStatus status =
371	(TSStatus)
372	SyncConfigNodeClientPool.getInstance()	×
373	.sendSyncRequestToConfigNodeWithRetry(	×
374	targetConfigNode, req, ConfigNodeRequestType.RESTART_CONFIG_NODE);
375
376	if (status.getCode() == TSStatusCode.SUCCESS_STATUS.getStatusCode()) {	×
377	LOGGER.info("Registration request of current ConfigNode is accepted.");	×
378	return;	×
379	} else if (status.getCode() == TSStatusCode.REDIRECTION_RECOMMEND.getStatusCode()) {	×
380	targetConfigNode = status.getRedirectNode();	×
381	LOGGER.info("ConfigNode need redirect to {}.", targetConfigNode);	×
382	} else {
383	throw new StartupException(status.getMessage());	×
384	}
385
386	try {
387	TimeUnit.MILLISECONDS.sleep(STARTUP_RETRY_INTERVAL_IN_MS);	×
388	} catch (InterruptedException e) {	×
389	Thread.currentThread().interrupt();	×
390	throw new StartupException("Register ConfigNode failed! ");	×
391	}	×
392	}
393	}	×
394
395	private void setUpRPCService() throws StartupException {
396	// Setup RPCService
397	ConfigNodeRPCService configNodeRPCService = new ConfigNodeRPCService();	×
398	ConfigNodeRPCServiceProcessor configNodeRPCServiceProcessor =	×
399	new ConfigNodeRPCServiceProcessor(configManager);
400	configNodeRPCService.initSyncedServiceImpl(configNodeRPCServiceProcessor);	×
401	registerManager.register(configNodeRPCService);	×
402	}	×
403
404	/**
405	* Deactivating ConfigNode internal services.
406	*
407	* @throws IOException if close configManager failed.
408	*/
409	public void deactivate() throws IOException {
410	LOGGER.info("Deactivating {}...", ConfigNodeConstant.GLOBAL_NAME);	×
411	registerManager.deregisterAll();	×
412	JMXService.deregisterMBean(mbeanName);	×
413	if (configManager != null) {	×
414	configManager.close();	×
415	}
416	LOGGER.info("{} is deactivated.", ConfigNodeConstant.GLOBAL_NAME);	×
417	}	×
418
419	public void stop() {
420	try {
421	deactivate();	×
422	} catch (IOException e) {	×
423	LOGGER.error("Meet error when deactivate ConfigNode", e);	×
424	}	×
425	System.exit(-1);	×
426	}	×
427
428	public ConfigManager getConfigManager() {
429	return configManager;	1✔
430	}
431
432	@TestOnly
433	public void setConfigManager(ConfigManager configManager) {
434	this.configManager = configManager;	1✔
435	}	1✔
436
437	private static class ConfigNodeHolder {
438
439	private static final ConfigNode INSTANCE = new ConfigNode();	1✔
440
441	private ConfigNodeHolder() {
442	// Empty constructor
443	}
444	}
445
446	public static ConfigNode getInstance() {
447	return ConfigNodeHolder.INSTANCE;	1✔
448	}
449	}

apache / iotdb / #9678

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