diff --git a/winixd/core/app.cpp b/winixd/core/app.cpp
index 1980f4c..82cdc40 100644
--- a/winixd/core/app.cpp
+++ b/winixd/core/app.cpp
@@ -934,33 +934,12 @@ void App::Start()
 		fcgi_request = &cur.request->fcgi_request;
 	}
 
-	WaitForRequestsToFinish();
-}
-
-
-/*
- * wait for requests from the jobs
- */
-void App::WaitForRequestsToFinish()
-{
-	bool is_req_tab_empty = false;
-
-	{
-		Winix::Lock lock(synchro);
-		system.DeleteOldRequests();
-		is_req_tab_empty = system.req_tab.empty();
-	}
-
-	while( is_req_tab_empty )
-	{
-		log << log3 << "App: waiting for requests to finish..." << logend << logsave;
-		sleep(1);
-
-		{
-			Winix::Lock lock(synchro);
-			is_req_tab_empty = system.req_tab.empty();
-		}
-	}
+	/*
+	 * we do not wait for some job requests to finish (if there are such requests)
+	 * the job loop will exit immediately when a synchro->is_stop_signal is defined
+	 * and there is no need to process such requests (the www server will return a 50x error
+	 * to the client)
+	 */
 }
 
 
diff --git a/winixd/core/app.h b/winixd/core/app.h
index b453598..4805743 100644
--- a/winixd/core/app.h
+++ b/winixd/core/app.h
@@ -217,7 +217,6 @@ private:
 
 	bool DoDatabaseMigration();
 	bool TryToMakeDatabaseMigration();
-	void WaitForRequestsToFinish();
 
 
 	// !! IMPROVE ME
diff --git a/winixd/core/job.cpp b/winixd/core/job.cpp
index 444baea..fbd45cf 100644
--- a/winixd/core/job.cpp
+++ b/winixd/core/job.cpp
@@ -198,6 +198,7 @@ return true;
 	second thread
 */
 
+
 // second thread (objects locked)
 bool Job::SignalReceived()
 {
@@ -430,7 +431,6 @@ void Job::RemoveOldRequest(Request * request)
 }
 
 
-
 } // namespace Winix
 
 
diff --git a/winixd/core/job.h b/winixd/core/job.h
index 110aa6e..7106b88 100644
--- a/winixd/core/job.h
+++ b/winixd/core/job.h
@@ -138,6 +138,7 @@ private:
 	void DoRequestContinuationJob(JobTask & job_task, size_t priority);
 	void DoWinixJob(pt::Space & job);
 	void RemoveOldRequest(Request * request);
+	void RemoveAllJobsRequests();
 	PluginRes DoRequestJobs(JobTask & task, long job_id, size_t priority);
 
 };
diff --git a/winixd/core/system.cpp b/winixd/core/system.cpp
index c5eea06..10acc72 100644
--- a/winixd/core/system.cpp
+++ b/winixd/core/system.cpp
@@ -1526,9 +1526,9 @@ void System::DeleteOldRequests(bool leave_one_object)
 	while( i != req_tab.end() )
 	{
 		// leave at least one object (even if it is finished)
-		if( i->run_state == Request::RunState::finished && (!leave_one_object || req_tab.size() > 1) )
+		if( (i->run_state == Request::RunState::finished || i->run_state == Request::RunState::not_assigned) && (!leave_one_object || req_tab.size() > 1) )
 		{
-			log << log3 << "System: removing finished request " << cur->request << logend;
+			log << log3 << "System: removing a finished or not assigned request " << cur->request << logend;
 			std::list<Request>::iterator old_i = i;
 			++i;
 			req_tab.erase(old_i);