cache config

def cache
     @cache ||= TorqueBox::Infinispan::Cache.new(
       name:     Settings.torquebox.services.DeviceHeartbeatMonitorService.cache_name,
-      persist:  Settings.torquebox.services.DeviceHeartbeatMonitorService.cache_persist_directory
+      persist:  Settings.torquebox.services.DeviceHeartbeatMonitorService.cache_persist_directory,
+      mode:     :replicated,
+      sync:     false
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     )
   end