--- /dev/null
+++ b/BUGS.txt
@@ -0,0 +1 @@
+* concurrent_required_instances calculation isn't aware of the fact that there could be concurrent request, but on extension instances. It should only calculate concurrent requests on the same instance
\ No newline at end of file

--- a/lib/dynablaster.rb
+++ b/lib/dynablaster.rb
@@ -40,7 +40,7 @@ class Dynablaster
   end
   
   def self.init_kernel_traps
-    $LOG.debug "Setting kernel traps.."    
+    $LOG.info "Setting kernel traps.."    
     Signal.trap("SIGTERM")  { Dynablaster.gracefull_shutdown("TERM") }
     Signal.trap("SIGINT")   { Dynablaster.gracefull_shutdown("INT") }
   end

--- a/lib/handle.rb
+++ b/lib/handle.rb
@@ -5,11 +5,11 @@ require 'extensions/mongrel'
 class Handle
 
   def self.load
-    # TODO: Load from config, database etc..
+    # TODO: Load from config, database etc.. Extract app name to App.name to achieve multiple handles for one app
     h = Handle.new(
-      :name => 'twinity', 
+      :name => 'fuboxx', 
       :host => 'localhost', 
-      :host_aliases => ['peter', 'pan'],
+      :host_aliases => ['fuboxx.ruby-labs.de', 'fuboxx.com', 'www.fuboxx.com'],
       :extension => Extensions::Mongrel
     )
     
@@ -49,8 +49,12 @@ class Handle
   end  
   
   def self.shutdown_all_handles
+    $LOG.debug "Unloading active handles.."
     @handles.each do |h| 
-      h.extension_instances.each { |i| i.stop } 
+      h.extension_instances.each do |instance|
+        sleep 5 if instance.state == :loading
+        instance.stop
+      end
     end
   end
 end
@@ -85,7 +89,7 @@ class Handle
   
   def ensure_availability(required_instances = 1, force = false)
     begin
-      @mutex.synchronize do        
+      @mutex.synchronize do   
         if @extension_instances.size < required_instances
           (required_instances - @extension_instances.size).times do 
             $LOG.debug "#{self.name}: Starting extension instance (#{self.extension}) [#{@extension_instances.size} > #{required_instances}]"

--- a/lib/tracking.rb
+++ b/lib/tracking.rb
@@ -32,7 +32,7 @@ class Tracking
         request_stats.each { |s| Stat.create_from_stats(app, s[:start], s[:end]) }
         app.update_slices
         current_crs = concurrent_request_sensitivity_for(app, handle.extension.sensitivity)
-        handle.ensure_availability(current_crs, true)
+        handle.ensure_availability(current_crs, true) if current_crs
       end
     rescue => e
       $LOG.error "ERROR: #{e}"
@@ -43,8 +43,9 @@ class Tracking
   private
   
   def concurrent_request_sensitivity_for(app, minutes)
-    slices = app.slices.find(:all, :conditions => ["slice_from >= ?", (Time.now - Time.now.sec) - (minutes * 60)])
-    return 1 if slices.blank?
+    plain_minute = (Time.now - Time.now.sec)
+    slices = app.slices.find(:all, :conditions => ["slice_from >= ? AND slice_from < ?", plain_minute - (minutes * 60), plain_minute])
+    return nil if slices.blank?
     total_concurrent_requests_for_time_range = 0
     slices.each { |s| total_concurrent_requests_for_time_range += s.concurrent_requests}
     (total_concurrent_requests_for_time_range / slices.size).ceil

Binary files a/marvin/db/development.sqlite3 and b/marvin/db/development.sqlite3 differ