Microsoft IIS monitoring & observability

Metric name	Metric key	Description	Unit
Total Bytes Sent	iis.total.bytes.sent.count	The number of data bytes that have been sent by the Web service (since service startup).	Byte
Total Bytes Received	iis.total.bytes.received.count	The number of data bytes that have been receivPed by the Web service (since service startup).	Byte
Total Bytes Transferred	iis.total.bytes.transferred.count	Total bytes either received or sent by the Web service (since service startup).	Byte
Total GET Requests	iis.total.get.requests.count	The number of HTTP requests using the GET method (since service startup). Get requests are the most common HTTP request.	Count
Total POST Requests	iis.total.post.requests.count	The number of HTTP requests using the POST method (since service startup).	Count
Total Method Requests	iis.total.method.requests.count	The number of all HTTP requests (since service startup).	Count
Total Method Requests per Second	iis.method.requests.persec	The rate HTTP requests are received.	PerSecond
Current Connections	iis.current.connections.gauge	Current Connections is the current number of connections established with the Web service.	Count
Service Uptime	iis.service.uptime	The length of time the Web Service has been running.	Second
Total Files Received	iis.total.files.received.count	The total number of files received by the Web service (since service startup).	Count
Total Files Sent	iis.total.files.sent.count	The total number of files sent by the Web service (since service startup).	Count
Total Connection Attempts (All instances)	iis.total.connectionAttempts.allInstances.count	Total Connection Attempts is the number of connections that have been attempted using the Web service (since service startup). This counter is for all instances listed.	Count
Total App Pool Uptime	iis.total.applicationPool.uptime	The length of time, in seconds, that the application pool has been running since Windows Process Activation Service (WAS) started.	Second
Current number of worker processes	iis.current.workerProcesses	The current number of worker processes that are running in the application pool.	Count
Maximum number of worker processes	iis.maximum.workerProcesses	The maximum number of worker processes that have been created for the application pool since Windows Process Activation Service (WAS) started.	Count
Total App Pool Recycles	iis.total.applicationPool.recycles.count	The number of times that the application pool has been recycled since Windows Process Activation Service (WAS) started.	Count
Current Application Pool Uptime	iis.current.applicationPool.uptime	The length of time, in seconds, that the application pool has been running since it was started.	Second
Time Since Last Worker Process Failure	iis.timeSinceLast.workerProcess.failure	The length of time, in seconds, since the last worker process failure occurred for the application pool.	Second
Cache Hit Rate	iis.cache.hitRate	Rate of cache hits for the queue	Percent
Current Queue Size	iis.current.queue.size	Number of requests in the queue	Count
Application Pool State	iis.current.applicationPool.state	State metric for Application Pools. State is expressed in the 'App Pool' dimension.	Unspecified

Metric name	Metric key	Description	Unit
Total HEAD Requests	iis.total.head.requests.count	The number of HTTP requests using the HEAD method (since service startup). Head requests generally indicate a client is querying the state of a document they already have to see if it needs to be refreshed.	Count
Total PUT Requests	iis.total.put.requests.count	The number of HTTP requests using the PUT method (since service startup).	Count
Total DELETE Requests	iis.total.delete.requests.count	The number of HTTP requests using the DELETE method (since service startup). Delete requests are generally used for file removals.	Count
Total OPTIONS Requests	iis.total.options.requests.count	The number of HTTP requests using the OPTIONS method (since service startup).	Count
Total TRACE Requests	iis.total.trace.requests.count	The number of HTTP requests using the TRACE method (since service startup). Trace requests allow the client to see what is being received at the end of the request chain and use the information for diagnostic purposes.	Count