lib/rflow/daemon_process.rb in rflow-1.0.0a2 vs lib/rflow/daemon_process.rb in rflow-1.0.0a3

@@ -144,10 +144,10 @@
         @daemon_pipe_w.close rescue nil
       end
     end
 
     def signal_subprocesses(signal)
-      subprocesses.each do |p|
+      subprocesses.reject {|p| p.pid.nil? }.each do |p|
         RFlow.logger.info "Signaling #{p.name} with #{signal}"
         Process.kill(signal, p.pid)
       end
     end
   end