#9965

Committed 30 Aug 2023 11:08AM UTC coverage: 47.773% (+0.01%) from 47.759%

Build # #9965

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push

travis_ci

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web-flow

Commit Message

[IOTDB-6129] ConfigNode restarts without relying on Seed-ConfigNode  (#10988)

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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.ServiceType;
import org.apache.iotdb.commons.service.metric.JvmGcMonitorMetrics;
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.TNodeVersionInfo;
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",
          IoTDBConstant.IOTDB_SERVICE_JMX_NAME,
          ConfigNodeConstant.JMX_TYPE,
          ServiceType.CONFIG_NODE.getJmxName());
  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);

        int configNodeId = CONF.getConfigNodeId();
        configManager.initConsensusManager();
        while (configManager.getConsensusManager().getLeader() == null) {
          LOGGER.info("Leader has not been elected yet, wait for 1 second");
          try {
            Thread.sleep(1000);
          } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
            LOGGER.warn("Unexpected interruption during waiting for leader election.");
          }
        }
        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());

        // Update item during restart
        // This will always be executed until the consensus write succeeds
        while (true) {
          TSStatus status =
              configManager
                  .getNodeManager()
                  .updateConfigNodeIfNecessary(
                      configNodeId,
                      new TNodeVersionInfo(IoTDBConstant.VERSION, IoTDBConstant.BUILD_INFO));
          if (status.getCode() == TSStatusCode.SUCCESS_STATUS.getStatusCode()) {
            break;
          } else {
            startUpSleep("restart ConfigNode failed! ");
          }
        }
        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(
                generateConfigNodeLocation(SEED_CONFIG_NODE_ID),
                new TNodeVersionInfo(IoTDBConstant.VERSION, IoTDBConstant.BUILD_INFO));
        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;
        }
        startUpSleep("Waiting leader's scheduling is interrupted.");
      }

      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(JvmGcMonitorMetrics.getInstance());
    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());
    SystemMetrics.getInstance().setDiskDirs(diskDirs);
    MetricService.getInstance().addMetricSet(SystemMetrics.getInstance());
  }

  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(),
            generateConfigNodeLocation(INIT_NON_SEED_CONFIG_NODE_ID));

    req.setVersionInfo(new TNodeVersionInfo(IoTDBConstant.VERSION, IoTDBConstant.BUILD_INFO));

    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());
      }
      startUpSleep("Register ConfigNode failed!");
    }

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

  private TConfigNodeLocation generateConfigNodeLocation(int configNodeId) {
    return new TConfigNodeLocation(
        configNodeId,
        new TEndPoint(CONF.getInternalAddress(), CONF.getInternalPort()),
        new TEndPoint(CONF.getInternalAddress(), CONF.getConsensusPort()));
  }

  private void startUpSleep(String errorMessage) throws StartupException {
    try {
      TimeUnit.MILLISECONDS.sleep(STARTUP_RETRY_INTERVAL_IN_MS);
    } catch (InterruptedException e) {
      Thread.currentThread().interrupt();
      throw new StartupException(errorMessage);
    }
  }

  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.ServiceType;
34	import org.apache.iotdb.commons.service.metric.JvmGcMonitorMetrics;
35	import org.apache.iotdb.commons.service.metric.MetricService;
36	import org.apache.iotdb.commons.utils.TestOnly;
37	import org.apache.iotdb.confignode.client.ConfigNodeRequestType;
38	import org.apache.iotdb.confignode.client.sync.SyncConfigNodeClientPool;
39	import org.apache.iotdb.confignode.conf.ConfigNodeConfig;
40	import org.apache.iotdb.confignode.conf.ConfigNodeConstant;
41	import org.apache.iotdb.confignode.conf.ConfigNodeDescriptor;
42	import org.apache.iotdb.confignode.conf.SystemPropertiesUtils;
43	import org.apache.iotdb.confignode.manager.ConfigManager;
44	import org.apache.iotdb.confignode.rpc.thrift.TConfigNodeRegisterReq;
45	import org.apache.iotdb.confignode.rpc.thrift.TConfigNodeRegisterResp;
46	import org.apache.iotdb.confignode.rpc.thrift.TNodeVersionInfo;
47	import org.apache.iotdb.confignode.service.thrift.ConfigNodeRPCService;
48	import org.apache.iotdb.confignode.service.thrift.ConfigNodeRPCServiceProcessor;
49	import org.apache.iotdb.db.service.metrics.ProcessMetrics;
50	import org.apache.iotdb.metrics.config.MetricConfigDescriptor;
51	import org.apache.iotdb.metrics.metricsets.UpTimeMetrics;
52	import org.apache.iotdb.metrics.metricsets.cpu.CpuUsageMetrics;
53	import org.apache.iotdb.metrics.metricsets.disk.DiskMetrics;
54	import org.apache.iotdb.metrics.metricsets.jvm.JvmMetrics;
55	import org.apache.iotdb.metrics.metricsets.logback.LogbackMetrics;
56	import org.apache.iotdb.metrics.metricsets.net.NetMetrics;
57	import org.apache.iotdb.metrics.metricsets.system.SystemMetrics;
58	import org.apache.iotdb.rpc.TSStatusCode;
59
60	import org.slf4j.Logger;
61	import org.slf4j.LoggerFactory;
62
63	import java.io.File;
64	import java.io.IOException;
65	import java.nio.charset.Charset;
66	import java.util.ArrayList;
67	import java.util.Arrays;
68	import java.util.List;
69	import java.util.concurrent.TimeUnit;
70
71	public class ConfigNode implements ConfigNodeMBean {
72
73	private static final Logger LOGGER = LoggerFactory.getLogger(ConfigNode.class);	1✔
74
75	private static final ConfigNodeConfig CONF = ConfigNodeDescriptor.getInstance().getConf();	1✔
76
77	private static final int STARTUP_RETRY_NUM = 10;
78	private static final int SCHEDULE_WAITING_RETRY_NUM = 20;
79	private static final long STARTUP_RETRY_INTERVAL_IN_MS = TimeUnit.SECONDS.toMillis(3);	1✔
80
81	private static final int SEED_CONFIG_NODE_ID = 0;
82
83	private static final int INIT_NON_SEED_CONFIG_NODE_ID = -1;
84
85	private static final String CONFIGURATION = "IoTDB configuration: {}";
86
87	private final String mbeanName =	1✔
88	String.format(	1✔
89	"%s:%s=%s",
90	IoTDBConstant.IOTDB_SERVICE_JMX_NAME,
91	ConfigNodeConstant.JMX_TYPE,
92	ServiceType.CONFIG_NODE.getJmxName());	1✔
93	private final RegisterManager registerManager = new RegisterManager();	1✔
94
95	private ConfigManager configManager;
96
97	private ConfigNode() {	1✔
98	// We do not init anything here, so that we can re-initialize the instance in IT.
99	}	1✔
100
101	public static void main(String[] args) {
102	LOGGER.info(	×
103	"{} environment variables: {}",
104	ConfigNodeConstant.GLOBAL_NAME,
105	ConfigNodeConfig.getEnvironmentVariables());	×
106	LOGGER.info(	×
107	"{} default charset is: {}",
108	ConfigNodeConstant.GLOBAL_NAME,
109	Charset.defaultCharset().displayName());	×
110	new ConfigNodeCommandLine().doMain(args);	×
111	}	×
112
113	public void active() {
114	LOGGER.info("Activating {}...", ConfigNodeConstant.GLOBAL_NAME);	×
115
116	try {
117	processPid();	×
118	// Add shutdown hook
119	Runtime.getRuntime().addShutdownHook(new ConfigNodeShutdownHook());	×
120	// Set up internal services
121	setUpInternalServices();	×
122	// Init ConfigManager
123	initConfigManager();	×
124
125	/* Restart */
126	if (SystemPropertiesUtils.isRestarted()) {	×
127	LOGGER.info("{} is in restarting process...", ConfigNodeConstant.GLOBAL_NAME);	×
128
129	int configNodeId = CONF.getConfigNodeId();	×
130	configManager.initConsensusManager();	×
131	while (configManager.getConsensusManager().getLeader() == null) {	×
132	LOGGER.info("Leader has not been elected yet, wait for 1 second");	×
133	try {
134	Thread.sleep(1000);	×
135	} catch (InterruptedException e) {	×
136	Thread.currentThread().interrupt();	×
137	LOGGER.warn("Unexpected interruption during waiting for leader election.");	×
138	}	×
139	}
140	setUpMetricService();	×
141	// Notice: We always set up Seed-ConfigNode's RPC service lastly to ensure
142	// that the external service is not provided until ConfigNode is fully available
143	setUpRPCService();	×
144	LOGGER.info(CONFIGURATION, CONF.getConfigMessage());	×
145	LOGGER.info(	×
146	"{} has successfully restarted and joined the cluster: {}.",
147	ConfigNodeConstant.GLOBAL_NAME,
148	CONF.getClusterName());	×
149
150	// Update item during restart
151	// This will always be executed until the consensus write succeeds
152	while (true) {
153	TSStatus status =	×
154	configManager
155	.getNodeManager()	×
156	.updateConfigNodeIfNecessary(	×
157	configNodeId,
158	new TNodeVersionInfo(IoTDBConstant.VERSION, IoTDBConstant.BUILD_INFO));
159	if (status.getCode() == TSStatusCode.SUCCESS_STATUS.getStatusCode()) {	×
160	break;	×
161	} else {
162	startUpSleep("restart ConfigNode failed! ");	×
163	}
164	}	×
165	return;	×
166	}
167
168	/* Initial startup of Seed-ConfigNode */
169	if (ConfigNodeDescriptor.getInstance().isSeedConfigNode()) {	×
170	LOGGER.info(	×
171	"The current {} is now starting as the Seed-ConfigNode.",
172	ConfigNodeConstant.GLOBAL_NAME);
173
174	/* Always set ClusterId and ConfigNodeId before initConsensusManager */
175	CONF.setConfigNodeId(SEED_CONFIG_NODE_ID);	×
176	configManager.initConsensusManager();	×
177
178	// Persistence system parameters after the consensusGroup is built,
179	// or the consensusGroup will not be initialized successfully otherwise.
180	SystemPropertiesUtils.storeSystemParameters();	×
181
182	// Seed-ConfigNode should apply itself when first start
183	configManager	×
184	.getNodeManager()	×
185	.applyConfigNode(	×
186	generateConfigNodeLocation(SEED_CONFIG_NODE_ID),	×
187	new TNodeVersionInfo(IoTDBConstant.VERSION, IoTDBConstant.BUILD_INFO));
188	setUpMetricService();	×
189	// Notice: We always set up Seed-ConfigNode's RPC service lastly to ensure
190	// that the external service is not provided until Seed-ConfigNode is fully initialized
191	setUpRPCService();	×
192	// The initial startup of Seed-ConfigNode finished
193	LOGGER.info(CONFIGURATION, CONF.getConfigMessage());	×
194	LOGGER.info(	×
195	"{} has successfully started and joined the cluster: {}.",
196	ConfigNodeConstant.GLOBAL_NAME,
197	CONF.getClusterName());	×
198	return;	×
199	}
200
201	/* Initial startup of Non-Seed-ConfigNode */
202	// We set up Non-Seed ConfigNode's RPC service before sending the register request
203	// in order to facilitate the scheduling of capacity expansion process in ConfigNode-leader
204	setUpRPCService();	×
205	sendRegisterConfigNodeRequest();	×
206	// The initial startup of Non-Seed-ConfigNode is not yet finished,
207	// we should wait for leader's scheduling
208	LOGGER.info(CONFIGURATION, CONF.getConfigMessage());	×
209	LOGGER.info(	×
210	"{} {} has registered successfully. Waiting for the leader's scheduling to join the cluster: {}.",
211	ConfigNodeConstant.GLOBAL_NAME,
212	CONF.getConfigNodeId(),	×
213	CONF.getClusterName());	×
214	setUpMetricService();	×
215
216	boolean isJoinedCluster = false;	×
217	for (int retry = 0; retry < SCHEDULE_WAITING_RETRY_NUM; retry++) {	×
218	if (!configManager	×
219	.getConsensusManager()	×
220	.getConsensusImpl()	×
221	.getAllConsensusGroupIds()	×
222	.isEmpty()) {	×
223	isJoinedCluster = true;	×
224	break;	×
225	}
226	startUpSleep("Waiting leader's scheduling is interrupted.");	×
227	}
228
229	if (!isJoinedCluster) {	×
230	LOGGER.error(	×
231	"The current ConfigNode can't joined the cluster because leader's scheduling failed. The possible cause is that the ip:port configuration is incorrect.");
232	stop();	×
233	}
234	} catch (StartupException \| IOException e) {	×
235	LOGGER.error("Meet error while starting up.", e);	×
236	stop();	×
237	}	×
238	}	×
239
240	void processPid() {
241	String pidFile = System.getProperty(ConfigNodeConstant.IOTDB_PIDFILE);	×
242	if (pidFile != null) {	×
243	new File(pidFile).deleteOnExit();	×
244	}
245	}	×
246
247	private void setUpInternalServices() throws StartupException {
248	// Setup JMXService
249	registerManager.register(new JMXService());	×
250	JMXService.registerMBean(this, mbeanName);	×
251
252	LOGGER.info("Successfully setup internal services.");	×
253	}	×
254
255	private void setUpMetricService() throws StartupException {
256	MetricConfigDescriptor.getInstance().getMetricConfig().setNodeId(CONF.getConfigNodeId());	×
257	registerManager.register(MetricService.getInstance());	×
258	// Bind predefined metric sets
259	MetricService.getInstance().addMetricSet(new UpTimeMetrics());	×
260	MetricService.getInstance().addMetricSet(new JvmMetrics());	×
261	MetricService.getInstance().addMetricSet(new LogbackMetrics());	×
262	MetricService.getInstance().addMetricSet(new ProcessMetrics());	×
263	MetricService.getInstance().addMetricSet(new DiskMetrics(IoTDBConstant.CN_ROLE));	×
264	MetricService.getInstance().addMetricSet(new NetMetrics(IoTDBConstant.CN_ROLE));	×
265	MetricService.getInstance().addMetricSet(JvmGcMonitorMetrics.getInstance());	×
266	MetricService.getInstance().addMetricSet(ClientManagerMetrics.getInstance());	×
267	MetricService.getInstance().addMetricSet(ThreadPoolMetrics.getInstance());	×
268	initCpuMetrics();	×
269	initSystemMetrics();	×
270	}	×
271
272	private void initSystemMetrics() {
273	ArrayList<String> diskDirs = new ArrayList<>();	×
274	diskDirs.add(CONF.getSystemDir());	×
275	diskDirs.add(CONF.getConsensusDir());	×
276	SystemMetrics.getInstance().setDiskDirs(diskDirs);	×
277	MetricService.getInstance().addMetricSet(SystemMetrics.getInstance());	×
278	}	×
279
280	private void initCpuMetrics() {
281	List<String> threadModules = new ArrayList<>();	×
282	Arrays.stream(ThreadModule.values()).forEach(x -> threadModules.add(x.toString()));	×
283	List<String> pools = new ArrayList<>();	×
284	Arrays.stream(ThreadName.values()).forEach(x -> pools.add(x.name()));	×
285	MetricService.getInstance()	×
286	.addMetricSet(	×
287	new CpuUsageMetrics(
288	threadModules,
289	pools,
290	x -> ThreadName.getModuleTheThreadBelongs(x).toString(),	×
291	x -> ThreadName.getThreadPoolTheThreadBelongs(x).name()));	×
292	}	×
293
294	private void initConfigManager() {
295	try {
296	configManager = new ConfigManager();	×
297	} catch (IOException e) {	×
298	LOGGER.error("Can't start ConfigNode consensus group!", e);	×
299	stop();	×
300	}	×
301	// Add some Metrics for configManager
302	configManager.addMetrics();	×
303	LOGGER.info("Successfully initialize ConfigManager.");	×
304	}	×
305
306	/**
307	* Register Non-seed ConfigNode when first startup.
308	*
309	* @throws StartupException if register failed.
310	* @throws IOException if consensus manager init failed.
311	*/
312	private void sendRegisterConfigNodeRequest() throws StartupException, IOException {
313	TConfigNodeRegisterReq req =	×
314	new TConfigNodeRegisterReq(
315	configManager.getClusterParameters(),	×
316	generateConfigNodeLocation(INIT_NON_SEED_CONFIG_NODE_ID));	×
317
318	req.setVersionInfo(new TNodeVersionInfo(IoTDBConstant.VERSION, IoTDBConstant.BUILD_INFO));	×
319
320	TEndPoint targetConfigNode = CONF.getTargetConfigNode();	×
321	if (targetConfigNode == null) {	×
322	LOGGER.error(	×
323	"Please set the cn_target_config_node_list parameter in iotdb-confignode.properties file.");
324	throw new StartupException("The targetConfigNode setting in conf is empty");	×
325	}
326
327	for (int retry = 0; retry < STARTUP_RETRY_NUM; retry++) {	×
328	TSStatus status;
329	TConfigNodeRegisterResp resp = null;	×
330	Object obj =
331	SyncConfigNodeClientPool.getInstance()	×
332	.sendSyncRequestToConfigNodeWithRetry(	×
333	targetConfigNode, req, ConfigNodeRequestType.REGISTER_CONFIG_NODE);
334
335	if (obj instanceof TConfigNodeRegisterResp) {	×
336	resp = (TConfigNodeRegisterResp) obj;	×
337	status = resp.getStatus();	×
338	} else {
339	status = (TSStatus) obj;	×
340	}
341
342	if (status.getCode() == TSStatusCode.SUCCESS_STATUS.getStatusCode()) {	×
343	if (resp == null) {	×
344	LOGGER.error("The result of register ConfigNode is empty!");	×
345	throw new StartupException("The result of register ConfigNode is empty!");	×
346	}
347	/* Always set ConfigNodeId before initConsensusManager */
348	CONF.setConfigNodeId(resp.getConfigNodeId());	×
349	configManager.initConsensusManager();	×
350	return;	×
351	} else if (status.getCode() == TSStatusCode.REDIRECTION_RECOMMEND.getStatusCode()) {	×
352	targetConfigNode = status.getRedirectNode();	×
353	LOGGER.info("ConfigNode need redirect to {}.", targetConfigNode);	×
354	} else {
355	throw new StartupException(status.getMessage());	×
356	}
357	startUpSleep("Register ConfigNode failed!");	×
358	}
359
360	LOGGER.error(	×
361	"The current ConfigNode can't send register request to the ConfigNode-leader after all retries!");
362	stop();	×
363	}	×
364
365	private TConfigNodeLocation generateConfigNodeLocation(int configNodeId) {
366	return new TConfigNodeLocation(	×
367	configNodeId,
368	new TEndPoint(CONF.getInternalAddress(), CONF.getInternalPort()),	×
369	new TEndPoint(CONF.getInternalAddress(), CONF.getConsensusPort()));	×
370	}
371
372	private void startUpSleep(String errorMessage) throws StartupException {
373	try {
374	TimeUnit.MILLISECONDS.sleep(STARTUP_RETRY_INTERVAL_IN_MS);	×
375	} catch (InterruptedException e) {	×
376	Thread.currentThread().interrupt();	×
377	throw new StartupException(errorMessage);	×
378	}	×
379	}	×
380
381	private void setUpRPCService() throws StartupException {
382	// Setup RPCService
383	ConfigNodeRPCService configNodeRPCService = new ConfigNodeRPCService();	×
384	ConfigNodeRPCServiceProcessor configNodeRPCServiceProcessor =	×
385	new ConfigNodeRPCServiceProcessor(configManager);
386	configNodeRPCService.initSyncedServiceImpl(configNodeRPCServiceProcessor);	×
387	registerManager.register(configNodeRPCService);	×
388	}	×
389
390	/**
391	* Deactivating ConfigNode internal services.
392	*
393	* @throws IOException if close configManager failed.
394	*/
395	public void deactivate() throws IOException {
396	LOGGER.info("Deactivating {}...", ConfigNodeConstant.GLOBAL_NAME);	×
397	registerManager.deregisterAll();	×
398	JMXService.deregisterMBean(mbeanName);	×
399	if (configManager != null) {	×
400	configManager.close();	×
401	}
402	LOGGER.info("{} is deactivated.", ConfigNodeConstant.GLOBAL_NAME);	×
403	}	×
404
405	public void stop() {
406	try {
407	deactivate();	×
408	} catch (IOException e) {	×
409	LOGGER.error("Meet error when deactivate ConfigNode", e);	×
410	}	×
411	System.exit(-1);	×
412	}	×
413
414	public ConfigManager getConfigManager() {
415	return configManager;	1✔
416	}
417
418	@TestOnly
419	public void setConfigManager(ConfigManager configManager) {
420	this.configManager = configManager;	1✔
421	}	1✔
422
423	private static class ConfigNodeHolder {
424
425	private static final ConfigNode INSTANCE = new ConfigNode();	1✔
426
427	private ConfigNodeHolder() {
428	// Empty constructor
429	}
430	}
431
432	public static ConfigNode getInstance() {
433	return ConfigNodeHolder.INSTANCE;	1✔
434	}
435	}

apache / iotdb / #9965

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