ensure puma has responded to decrement signal

lib/puma_auto_tune/defaults/ram/hooks.rb

@@ -19,7 +19,7 @@
 
   # Called when puma is using too much memory
   auto.set(:out_of_memory) do |memory, master, workers|
-    if workers.size > 1 && PumaAutoTune.max_worker_limit > 1
+    if workers.size > 1
       largest_worker = workers.last # ascending worker size
       auto.log "Potential memory leak. Reaping largest worker", largest_worker_memory_mb: largest_worker.memory
       largest_worker.restart
@@ -49,9 +49,8 @@
 
   # Called to remove 1 worker from pool. Sets maximum size
   auto.set(:remove_worker) do |memory, master, workers|
-    if workers.size > 1 && PumaAutoTune.max_worker_limit > 1
-      PumaAutoTune.max_worker_limit = workers.size if PumaAutoTune::INFINITY == PumaAutoTune.max_worker_limit
-      PumaAutoTune.max_worker_limit -= 1
+    if workers.size > 1
+      PumaAutoTune.max_worker_limit = workers.size - 1
       auto.log "Cluster too large. Resizing to remove one worker"
       master.remove_worker
       auto.call(:reap_cycle)

lib/puma_auto_tune/master.rb

@@ -10,7 +10,11 @@ def running?
 
     # https://github.com/puma/puma/blob/master/docs/signals.md#puma-signals
     def remove_worker
+      previous_worker_count = workers.size
       send_signal("TTOU")
+      until workers.size < previous_worker_count
+        sleep 0.1
+      end
     end
 
     # https://github.com/puma/puma/blob/master/docs/signals.md#puma-signals