diff --git a/powerjob-server/powerjob-server-remote/src/main/java/tech/powerjob/server/remote/server/self/ServerInfoService.java b/powerjob-server/powerjob-server-remote/src/main/java/tech/powerjob/server/remote/server/self/ServerInfoService.java
index a01b8c0b..5c799a7a 100644
--- a/powerjob-server/powerjob-server-remote/src/main/java/tech/powerjob/server/remote/server/self/ServerInfoService.java
+++ b/powerjob-server/powerjob-server-remote/src/main/java/tech/powerjob/server/remote/server/self/ServerInfoService.java
@@ -10,6 +10,10 @@ import tech.powerjob.server.common.module.ServerInfo;
  */
 public interface ServerInfoService {
 
+    /**
+     * fetch current server info
+     * @return ServerInfo
+     */
     ServerInfo fetchServiceInfo();
 
 }
diff --git a/powerjob-server/powerjob-server-remote/src/main/java/tech/powerjob/server/remote/server/self/ServerInfoServiceImpl.java b/powerjob-server/powerjob-server-remote/src/main/java/tech/powerjob/server/remote/server/self/ServerInfoServiceImpl.java
index 94bb12ca..eb94b58b 100644
--- a/powerjob-server/powerjob-server-remote/src/main/java/tech/powerjob/server/remote/server/self/ServerInfoServiceImpl.java
+++ b/powerjob-server/powerjob-server-remote/src/main/java/tech/powerjob/server/remote/server/self/ServerInfoServiceImpl.java
@@ -88,7 +88,6 @@ public class ServerInfoServiceImpl implements ServerInfoService {
         log.info("[ServerInfoService] ip:{}, id:{}, cost:{}", ip, serverInfo.getId(), sw);
     }
 
-    @Async(PJThreadPool.TIMING_POOL)
     @Scheduled(fixedRate = 15000, initialDelay = 15000)
     public void heartbeat() {
         serverInfoRepository.updateGmtModifiedByIp(serverInfo.getIp(), new Date());