diff --git a/internal/registry/obj_exporter.go b/internal/registry/obj_exporter.go
index 73cda60..675c192 100644
--- a/internal/registry/obj_exporter.go
+++ b/internal/registry/obj_exporter.go
@@ -45,7 +45,7 @@ func (o *ObjExporter) ExportJSONPreGen(fileName string) error {
 
 	var comma string
 	for i := 0; i < count; i++ {
-		info := o.selector.NextObject()
+		info := o.selector.NextObject(5)
 		if info == nil {
 			break
 		}
diff --git a/internal/registry/obj_selector.go b/internal/registry/obj_selector.go
index 80f5192..ffec259 100644
--- a/internal/registry/obj_selector.go
+++ b/internal/registry/obj_selector.go
@@ -53,9 +53,15 @@ func NewObjSelector(registry *ObjRegistry, selectionSize int, filter *ObjFilter)
 // the following happens:
 //   - a "new" next object is available;
 //   - underlying registry context is done, nil objects will be returned on the
-//     currently blocked and every further NextObject calls.
-func (o *ObjSelector) NextObject() *ObjectInfo {
-	return <-o.objChan
+//     currently blocked and every further NextObject calls;
+//   - timeoutSeconds elapsed, nil object will be returned.
+func (o *ObjSelector) NextObject(timeoutSeconds int) *ObjectInfo {
+	select {
+	case <-time.After(time.Duration(timeoutSeconds) * time.Second):
+		return nil
+	case obj := <-o.objChan:
+		return obj
+	}
 }
 
 // Count returns total number of objects that match filter of the selector.
@@ -163,10 +169,11 @@ func (o *ObjSelector) selectLoop() {
 		if len(cache) != o.cacheSize {
 			// no more objects, wait a little; the logic could be improved.
 			select {
-			case <-time.After(time.Second * time.Duration(o.filter.Age/2)):
+			case <-time.After(time.Second):
 			case <-o.ctx.Done():
 				return
 			}
+			lastID = 0
 		}
 
 		// clean handled objects
diff --git a/scenarios/grpc.js b/scenarios/grpc.js
index 328aae8..b41c4ed 100644
--- a/scenarios/grpc.js
+++ b/scenarios/grpc.js
@@ -49,6 +49,18 @@ if (registry_enabled && delete_age) {
     );
 }
 
+let obj_to_read_selector = undefined;
+if (registry_enabled) {
+    obj_to_read_selector = registry.getSelector(
+        __ENV.REGISTRY_FILE,
+        "obj_to_read",
+        __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0,
+        {
+            status: "created",
+        }
+    )
+}
+
 
 const generator = datagen.generator(1024 * parseInt(__ENV.WRITE_OBJ_SIZE), __ENV.PAYLOAD_TYPE || "");
 
@@ -149,6 +161,18 @@ export function obj_read() {
         sleep(__ENV.SLEEP_READ);
     }
 
+    if(obj_to_read_selector) {
+        const obj = obj_to_read_selector.nextObject(5);
+        if (!obj) {
+            return;
+        }
+        const resp = grpc_client.get(obj.c_id, obj.o_id)
+        if (!resp.success) {
+            log.withFields({cid: obj.c_id, oid: obj.o_id}).error(resp.error);
+        }
+        return
+    }
+
     const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
     const resp = grpc_client.get(obj.container, obj.object)
     if (!resp.success) {
@@ -161,7 +185,7 @@ export function obj_delete() {
         sleep(__ENV.SLEEP_DELETE);
     }
 
-    const obj = obj_to_delete_selector.nextObject();
+    const obj = obj_to_delete_selector.nextObject(5);
     if (!obj) {
         return;
     }
diff --git a/scenarios/grpc_car.js b/scenarios/grpc_car.js
index 2214529..972cbf9 100644
--- a/scenarios/grpc_car.js
+++ b/scenarios/grpc_car.js
@@ -49,6 +49,17 @@ if (registry_enabled && delete_age) {
     );
 }
 
+let obj_to_read_selector = undefined;
+if (registry_enabled) {
+    obj_to_read_selector = registry.getSelector(
+        __ENV.REGISTRY_FILE,
+        "obj_to_read",
+        __ENV.SELECTION_SIZE ? parseInt(__ENV.SELECTION_SIZE) : 0,
+        {
+            status: "created",
+        }
+    )
+}
 
 const generator = datagen.generator(1024 * parseInt(__ENV.WRITE_OBJ_SIZE));
 
@@ -174,6 +185,18 @@ export function obj_read() {
         sleep(__ENV.SLEEP_READ);
     }
 
+    if(obj_to_read_selector) {
+        const obj = obj_to_read_selector.nextObject(5);
+        if (!obj) {
+            return;
+        }
+        const resp = grpc_client.get(obj.c_id, obj.o_id)
+        if (!resp.success) {
+            log.withFields({cid: obj.c_id, oid: obj.o_id}).error(resp.error);
+        }
+        return
+    }
+
     const obj = obj_list[Math.floor(Math.random() * obj_list.length)];
     const resp = grpc_client.get(obj.container, obj.object)
     if (!resp.success) {
@@ -186,7 +209,7 @@ export function obj_delete() {
         sleep(__ENV.SLEEP_DELETE);
     }
 
-    const obj = obj_to_delete_selector.nextObject();
+    const obj = obj_to_delete_selector.nextObject(5);
     if (!obj) {
         return;
     }
diff --git a/scenarios/local.js b/scenarios/local.js
index 01496a4..c56d2bb 100644
--- a/scenarios/local.js
+++ b/scenarios/local.js
@@ -142,7 +142,7 @@ export function obj_read() {
 }
 
 export function obj_delete() {
-    const obj = obj_to_delete_selector.nextObject();
+    const obj = obj_to_delete_selector.nextObject(5);
     if (!obj) {
         return;
     }
diff --git a/scenarios/s3.js b/scenarios/s3.js
index 0255364..e741708 100644
--- a/scenarios/s3.js
+++ b/scenarios/s3.js
@@ -157,7 +157,7 @@ export function obj_delete() {
         sleep(__ENV.SLEEP_DELETE);
     }
 
-    const obj = obj_to_delete_selector.nextObject();
+    const obj = obj_to_delete_selector.nextObject(5);
     if (!obj) {
         return;
     }
diff --git a/scenarios/s3_car.js b/scenarios/s3_car.js
index 45b13fc..95edfd5 100644
--- a/scenarios/s3_car.js
+++ b/scenarios/s3_car.js
@@ -184,7 +184,7 @@ export function obj_delete() {
         sleep(__ENV.SLEEP_DELETE);
     }
 
-    const obj = obj_to_delete_selector.nextObject();
+    const obj = obj_to_delete_selector.nextObject(5);
     if (!obj) {
         return;
     }
diff --git a/scenarios/verify.js b/scenarios/verify.js
index da27fed..3bba4d2 100644
--- a/scenarios/verify.js
+++ b/scenarios/verify.js
@@ -112,7 +112,7 @@ export function obj_verify() {
         sleep(__ENV.SLEEP);
     }
 
-    const obj = obj_to_verify_selector.nextObject();
+    const obj = obj_to_verify_selector.nextObject(5);
     if (!obj) {
         log.info("All objects have been verified");
         return;