diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/cache/CacheUpdateTimer.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/cache/CacheUpdateTimer.java
index 3d3cbdfff2bf4f434c98016a83c85c9d8f40d735..3f06ecc1efa9b83aa13accf9b3c4531117299bb1 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/cache/CacheUpdateTimer.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/cache/CacheUpdateTimer.java
@@ -64,7 +64,7 @@ public enum CacheUpdateTimer {
                 cache.setMappingServiceId(serviceInventory.getMappingServiceId());
                 cache.setMappingLastUpdateTime(serviceInventory.getMappingLastUpdateTime());
             } else {
-                logger.warn("Unable to found the id of {} in service inventory cache.");
+                logger.warn("Unable to found the id of {} in service inventory cache.", serviceInventory.getSequence());
             }
         });
     }
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/register/service/ServiceInstanceInventoryRegister.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/register/service/ServiceInstanceInventoryRegister.java
index 8bb47a2100ba45589efa7d1627ee13629a9e2305..c6b0e5ec80a8b76ed7cf809a835d2ef41835baea 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/register/service/ServiceInstanceInventoryRegister.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/register/service/ServiceInstanceInventoryRegister.java
@@ -107,7 +107,7 @@ public class ServiceInstanceInventoryRegister implements IServiceInstanceInvento
             serviceInstanceInventory.setHeartbeatTime(heartBeatTime);
             InventoryProcess.INSTANCE.in(serviceInstanceInventory);
         } else {
-            logger.warn("Service instance {} heartbeat, but not found in storage.");
+            logger.warn("Service instance {} heartbeat, but not found in storage.", serviceInstanceId);
         }
     }
 }