lib/scout/command.rb in scout-5.5.5 vs lib/scout/command.rb in scout-5.5.6.pre

@@ -234,29 +234,31 @@
           end
         end
       rescue
         running = true
         pid = File.read(pid_file).strip.to_i rescue "unknown"
-        if pid.zero? 
-          running = false
-        else
-          begin
-            Process.kill(0, pid)
-            if stat = File.stat(pid_file)
-              if mtime = stat.mtime
-                if Time.now - mtime > 25 * 60  # assume process is hung after 25m
-                  log.info "Trying to KILL an old process..." if log
-                  Process.kill("KILL", pid)
-                  running = false
+        if pid.is_a?(Fixnum)
+          if pid.zero? 
+            running = false
+          else
+            begin
+              Process.kill(0, pid)
+              if stat = File.stat(pid_file)
+                if mtime = stat.mtime
+                  if Time.now - mtime > 25 * 60  # assume process is hung after 25m
+                    log.info "Trying to KILL an old process..." if log
+                    Process.kill("KILL", pid)
+                    running = false
+                  end
                 end
               end
+            rescue Errno::ESRCH
+              running = false
+            rescue
+              # do nothing, we didn't have permission to check the running process
             end
-          rescue Errno::ESRCH
-            running = false
-          rescue
-            # do nothing, we didn't have permission to check the running process
-          end
-        end # pid.zero?
+          end # pid.zero?
+        end # pid.is_a?(Fixnum)
         if running
           if pid == "unknown"
             log.warn "Could not create or read PID file.  "                +
                      "You may need to specify the path to the config directory.  " +
                      "See:  http://scoutapp.com/help#data_file" if log