[Bugfix]修复新接入的集群，Controller-Host不显示的问题(#927)

问题原因：
1、新接入的集群，DB中暂未存储Broker信息，因此在存储Controller至DB时，查询DB中的Broker会查询为空。

解决方式：
1、存储Controller至DB前，主动获取一次Broker的信息。

km-core/src/main/java/com/xiaojukeji/know/streaming/km/core/flusher/zk/handler/ControllerNodeChangeHandler.java

@@ -2,6 +2,7 @@ package com.xiaojukeji.know.streaming.km.core.flusher.zk.handler;
 
 import com.didiglobal.logi.log.ILog;
 import com.didiglobal.logi.log.LogFactory;
+import com.xiaojukeji.know.streaming.km.common.bean.entity.broker.Broker;
 import com.xiaojukeji.know.streaming.km.common.bean.entity.kafkacontroller.KafkaController;
 import com.xiaojukeji.know.streaming.km.common.bean.po.changerecord.KafkaChangeRecordPO;
 import com.xiaojukeji.know.streaming.km.common.constant.Constant;
@@ -100,7 +101,9 @@ public class ControllerNodeChangeHandler extends AbstractZKHandler implements ZN
             if (kafkaController == null) {
                 kafkaControllerService.setNoKafkaController(clusterPhyId, triggerTime);
             } else {
-                kafkaControllerService.insertAndIgnoreDuplicateException(kafkaController);
+                Broker broker = kafkaZKDAO.getBrokerMetadata(clusterPhyId, kafkaController.getBrokerId());
+
+                kafkaControllerService.insertAndIgnoreDuplicateException(kafkaController, broker != null? broker.getHost(): "", broker != null? broker.getRack(): "");
             }
         } catch (Exception e) {
             log.error("method=updateDBData||clusterPhyId={}||errMsg=exception", clusterPhyId, e);

km-core/src/main/java/com/xiaojukeji/know/streaming/km/core/service/kafkacontroller/KafkaControllerService.java

@@ -12,7 +12,7 @@ import java.util.Map;
 public interface KafkaControllerService {
     Result<KafkaController> getControllerFromKafka(ClusterPhy clusterPhy);
 
-    int insertAndIgnoreDuplicateException(KafkaController kafkaController);
+    int insertAndIgnoreDuplicateException(KafkaController kafkaController, String controllerHost, String controllerRack);
 
     int setNoKafkaController(Long clusterPhyId, Long triggerTime);
 

km-core/src/main/java/com/xiaojukeji/know/streaming/km/core/service/kafkacontroller/impl/KafkaControllerServiceImpl.java

@@ -5,7 +5,6 @@ import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.didiglobal.logi.log.ILog;
 import com.didiglobal.logi.log.LogFactory;
-import com.xiaojukeji.know.streaming.km.common.bean.entity.broker.Broker;
 import com.xiaojukeji.know.streaming.km.common.bean.entity.cluster.ClusterPhy;
 import com.xiaojukeji.know.streaming.km.common.bean.entity.kafkacontroller.KafkaController;
 import com.xiaojukeji.know.streaming.km.common.bean.entity.result.Result;
@@ -15,7 +14,6 @@ import com.xiaojukeji.know.streaming.km.common.constant.Constant;
 import com.xiaojukeji.know.streaming.km.common.constant.KafkaConstant;
 import com.xiaojukeji.know.streaming.km.common.enums.cluster.ClusterRunStateEnum;
 import com.xiaojukeji.know.streaming.km.common.utils.ValidateUtils;
-import com.xiaojukeji.know.streaming.km.core.service.broker.BrokerService;
 import com.xiaojukeji.know.streaming.km.core.service.kafkacontroller.KafkaControllerService;
 import com.xiaojukeji.know.streaming.km.persistence.kafka.KafkaAdminClient;
 import com.xiaojukeji.know.streaming.km.persistence.mysql.kafkacontroller.KafkaControllerDAO;
@@ -32,9 +30,6 @@ import java.util.*;
 public class KafkaControllerServiceImpl implements KafkaControllerService {
     private static final ILog log = LogFactory.getLog(KafkaControllerServiceImpl.class);
 
-    @Autowired
-    private BrokerService brokerService;
-
     @Autowired
     private KafkaAdminClient kafkaAdminClient;
 
@@ -54,16 +49,14 @@ public class KafkaControllerServiceImpl implements KafkaControllerService {
     }
 
     @Override
-    public int insertAndIgnoreDuplicateException(KafkaController kafkaController) {
+    public int insertAndIgnoreDuplicateException(KafkaController kafkaController, String controllerHost, String controllerRack) {
         try {
-            Broker broker = brokerService.getBrokerFromCacheFirst(kafkaController.getClusterPhyId(), kafkaController.getBrokerId());
-
             KafkaControllerPO kafkaControllerPO = new KafkaControllerPO();
             kafkaControllerPO.setClusterPhyId(kafkaController.getClusterPhyId());
             kafkaControllerPO.setBrokerId(kafkaController.getBrokerId());
             kafkaControllerPO.setTimestamp(kafkaController.getTimestamp());
-            kafkaControllerPO.setBrokerHost(broker != null? broker.getHost(): "");
-            kafkaControllerPO.setBrokerRack(broker != null? broker.getRack(): "");
+            kafkaControllerPO.setBrokerHost(controllerHost != null? controllerHost: "");
+            kafkaControllerPO.setBrokerRack(controllerRack != null? controllerRack: "");
             kafkaControllerDAO.insert(kafkaControllerPO);
         } catch (DuplicateKeyException dke) {
             // ignore
@@ -92,7 +85,7 @@ public class KafkaControllerServiceImpl implements KafkaControllerService {
 
         // 归一化到秒, 并且将去1秒，避免gc导致时间不对
         noKafkaController.setTimestamp(triggerTime);
-        return this.insertAndIgnoreDuplicateException(noKafkaController);
+        return this.insertAndIgnoreDuplicateException(noKafkaController, "", "");
     }
 
     @Override

km-task/src/main/java/com/xiaojukeji/know/streaming/km/task/kafka/metadata/SyncControllerTask.java

@@ -5,12 +5,16 @@ import com.didiglobal.logi.job.common.TaskResult;
 import com.didiglobal.logi.job.core.consensual.ConsensualEnum;
 import com.didiglobal.logi.log.ILog;
 import com.didiglobal.logi.log.LogFactory;
+import com.xiaojukeji.know.streaming.km.common.bean.entity.broker.Broker;
 import com.xiaojukeji.know.streaming.km.common.bean.entity.cluster.ClusterPhy;
 import com.xiaojukeji.know.streaming.km.common.bean.entity.kafkacontroller.KafkaController;
 import com.xiaojukeji.know.streaming.km.common.bean.entity.result.Result;
+import com.xiaojukeji.know.streaming.km.core.service.broker.BrokerService;
 import com.xiaojukeji.know.streaming.km.core.service.kafkacontroller.KafkaControllerService;
 import org.springframework.beans.factory.annotation.Autowired;
 
+import java.util.List;
+
 
 @Task(name = "SyncControllerTask",
         description = "Controller信息同步到DB",
@@ -19,7 +23,10 @@ import org.springframework.beans.factory.annotation.Autowired;
         consensual = ConsensualEnum.BROADCAST,
         timeout = 2 * 60)
 public class SyncControllerTask extends AbstractAsyncMetadataDispatchTask {
-    private static final ILog log = LogFactory.getLog(SyncControllerTask.class);
+    private static final ILog LOGGER = LogFactory.getLog(SyncControllerTask.class);
+
+    @Autowired
+    private BrokerService brokerService;
 
     @Autowired
     private KafkaControllerService kafkaControllerService;
@@ -33,10 +40,30 @@ public class SyncControllerTask extends AbstractAsyncMetadataDispatchTask {
 
         if (controllerResult.getData() == null) {
             kafkaControllerService.setNoKafkaController(clusterPhy.getId(), System.currentTimeMillis() / 1000L * 1000L);
+
+            return TaskResult.SUCCESS;
+        }
+
+
+        Broker controllerBroker = null;
+
+        Result<List<Broker>> brokerListResult = brokerService.listBrokersFromKafka(clusterPhy);
+        if (brokerListResult.failed()) {
+            LOGGER.error("method=processClusterTask||clusterPhyId={}||result={}||errMsg=list brokers failed", clusterPhy.getId(), brokerListResult);
         } else {
-            kafkaControllerService.insertAndIgnoreDuplicateException(controllerResult.getData());
+            for (Broker broker: brokerListResult.getData()) {
+                if (broker.getBrokerId().equals(controllerResult.getData().getBrokerId())) {
+                    controllerBroker = broker;
+                }
+            }
         }
 
+        kafkaControllerService.insertAndIgnoreDuplicateException(
+                controllerResult.getData(),
+                controllerBroker != null? controllerBroker.getHost(): "",
+                controllerBroker != null? controllerBroker.getRack(): ""
+        );
+
         return TaskResult.SUCCESS;
     }
 }