Fix logs with missing variables (#1884)

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());
             }
         });
     }

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);
         }
     }
 }