[Fix][Registry]server listener err (#6232)

* [Fix][Registry]server listener err

dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/registry/ServerNodeManager.java

@@ -106,6 +106,11 @@ public class ServerNodeManager implements InitializingBean {
      */
     private RegistryClient registryClient = RegistryClient.getInstance();
 
+    /**
+     * eg : /node/worker/group/127.0.0.1:xxx
+     */
+    private static final int WORKER_LISTENER_CHECK_LENGTH = 5;
+
     /**
      * worker group mapper
      */
@@ -155,7 +160,7 @@ public class ServerNodeManager implements InitializingBean {
         /**
          * init WorkerNodeListener listener
          */
-        registryClient.subscribe(REGISTRY_DOLPHINSCHEDULER_WORKERS, new MasterDataListener());
+        registryClient.subscribe(REGISTRY_DOLPHINSCHEDULER_WORKERS, new WorkerDataListener());
     }
 
     /**
@@ -210,7 +215,7 @@ public class ServerNodeManager implements InitializingBean {
     /**
      * worker group node listener
      */
-    class WorkerGroupNodeListener implements SubscribeListener {
+    class WorkerDataListener implements SubscribeListener {
 
         @Override
         public void notify(String path, DataChangeEvent dataChangeEvent) {
@@ -240,7 +245,7 @@ public class ServerNodeManager implements InitializingBean {
 
         private String parseGroup(String path) {
             String[] parts = path.split("/");
-            if (parts.length < 6) {
+            if (parts.length < WORKER_LISTENER_CHECK_LENGTH) {
                 throw new IllegalArgumentException(String.format("worker group path : %s is not valid, ignore", path));
             }
             return parts[parts.length - 2];
@@ -307,7 +312,6 @@ public class ServerNodeManager implements InitializingBean {
      * sync master nodes
      *
      * @param nodes master nodes
-     * @param masterNodes
      */
     private void syncMasterNodes(Set<String> nodes, List<Server> masterNodes) {
         masterLock.lock();

dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/registry/WorkerRegistryClient.java

@@ -131,11 +131,10 @@ public class WorkerRegistryClient {
     public Set<String> getWorkerZkPaths() {
         Set<String> workerPaths = Sets.newHashSet();
         String address = getLocalAddress();
-        String workerZkPathPrefix = REGISTRY_DOLPHINSCHEDULER_WORKERS;
 
         for (String workGroup : this.workerGroups) {
             StringJoiner workerPathJoiner = new StringJoiner(SINGLE_SLASH);
-            workerPathJoiner.add(workerZkPathPrefix);
+            workerPathJoiner.add(REGISTRY_DOLPHINSCHEDULER_WORKERS);
             if (StringUtils.isEmpty(workGroup)) {
                 workGroup = DEFAULT_WORKER_GROUP;
             }