Fixes openwhisk/openwhisk-devtools#7 (#8)

diff --git a/docker-compose/docker-whisk-controller.env b/docker-compose/docker-whisk-controller.env
index 35c8739..6897551 100644
--- a/docker-compose/docker-whisk-controller.env
+++ b/docker-compose/docker-whisk-controller.env
@@ -26,6 +26,8 @@
 LIMITS_TRIGGERS_FIRES_PERMINUTE=60000
 LIMITS_ACTIONS_INVOKES_CONCURRENTINSYSTEM=5000
 
+LOADBALANCER_ACTIVATIONCOUNTBEFORENEXTINVOKER=10
+
 WHISK_API_HOST=https://${DOCKER_COMPOSE_HOST}
 
 WHISK_SYSTEM_KEY=whisk.system