diff --git a/scenarios/s3_dar.js b/scenarios/s3_dar.js
index 5f10bd0..2b4a31a 100644
--- a/scenarios/s3_dar.js
+++ b/scenarios/s3_dar.js
@@ -165,11 +165,12 @@ export function obj_write() {
     const payload = generator.genPayload();
     const resp = s3_client.put(bucket, key, payload);
     if (!resp.success) {
-        log.withFields({bucket : bucket, key : key}).error(resp.error);
+        log.withFields({bucket : bucket, key : key, op: "write"}).error(resp.error);
         return;
     }
 
     if (obj_registry) {
+        log.withFields({bucket : bucket, key : key, op: "write"}).info("add to registry");
         obj_registry.addObject('', '', bucket, key, payload.hash());
     }
 }
@@ -189,6 +190,7 @@ export function obj_read() {
             log.withFields({bucket : obj.s3_bucket, key : obj.s3_key, status: obj.status, op: `READ`})
                 .error(resp.error);
         } else {
+            log.withFields({bucket : obj.s3_bucket, key :  obj.s3_key, op: "read"}).info("set read status");
             obj_registry.setObjectStatus(obj.id, obj.status, 'read');
         }
 
@@ -228,6 +230,6 @@ export function delete_object(obj) {
             .error(resp.error);
         return;
     }
-
+    log.withFields({bucket : obj.s3_bucket, key : obj.s3_key, op: "delete"}).info("delete from registry");
     obj_registry.deleteObject(obj.id);
 }
\ No newline at end of file