= JMX Instrumentation = grizzly-sendfile is instrumented via JMX, which makes it convenient to monitor grizzly-sendfile on production servers via JMX clients (e.g. JConsole) Metrics that can be observed: * number of requests processed * number of bytes transferred * number of downloads in progress * and many more It is even possible to list all the downloads in progress and for each download to obtain information such as: * client IP * status of the download * percentage completed * file being transfered * and many more [[image: grizzly-sendfile_jmx.png]]