diff --git a/docker-compose.yml b/docker-compose.yml
index c1c7eb13..574928f0 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -11,6 +11,10 @@ services:
       - redis1
 
   ws:
+    security_opt:
+    - seccomp:unconfined
+    cap_add:
+    - SYS_PTRACE
     stdin_open: true
     tty: true
     image: bsergean/ws:build
diff --git a/ws/ws_cobra_publish.cpp b/ws/ws_cobra_publish.cpp
index e42bbeef..62b4d85f 100644
--- a/ws/ws_cobra_publish.cpp
+++ b/ws/ws_cobra_publish.cpp
@@ -53,10 +53,12 @@ namespace ix
                 {
                     cobraMetricsPublisher.push(channel, data);
                 }
-                cobraMetricsPublisher.suspend();
 
-                std::this_thread::sleep_for(std::chrono::milliseconds(100));
+                cobraMetricsPublisher.suspend();
                 cobraMetricsPublisher.resume();
+
+                // FIXME: investigate why without this check we trigger a lock
+                while (!cobraMetricsPublisher.isAuthenticated()) ;
             }
         }