[server] Close ZooKeeperClient only after all dependent components have been shut down to prevent exceptions

Author: Liebing

fluss-server/src/main/java/org/apache/fluss/server/coordinator/CoordinatorServer.java

@@ -424,14 +424,6 @@ CompletableFuture<Void> stopServices() {
                 exception = ExceptionUtils.firstOrSuppressed(t, exception);
             }
 
-            try {
-                if (zkClient != null) {
-                    zkClient.close();
-                }
-            } catch (Throwable t) {
-                exception = ExceptionUtils.firstOrSuppressed(t, exception);
-            }
-
             try {
                 if (authorizer != null) {
                     authorizer.close();
@@ -452,6 +444,14 @@ CompletableFuture<Void> stopServices() {
                 exception = ExceptionUtils.firstOrSuppressed(t, exception);
             }
 
+            try {
+                if (zkClient != null) {
+                    zkClient.close();
+                }
+            } catch (Throwable t) {
+                exception = ExceptionUtils.firstOrSuppressed(t, exception);
+            }
+
             try {
                 if (rpcClient != null) {
                     rpcClient.close();