Getting ColdFusion Server Metrics

December 16, 2003
coldfusion

The often forgoten function GetMetricData() function returns the same info as the cfstat utility. Here's an example:

<cfset metrics = GetMetricData("PERF_MONITOR")>
<cfoutput>
  ColdFusion Server Metrics: <br>
  <br>
  InstanceName: #metrics.InstanceName# <br>
  PageHits: #metrics.PageHits# <br>
  ReqQueued: #metrics.ReqQueued# <br>
  DBHits: #metrics.DBHits# <br>
  ReqRunning: #metrics.ReqRunning# <br>
  ReqTimedOut: #metrics.ReqTimedOut# <br>
  BytesIn: #metrics.BytesIn# <br>
  BytesOut: #metrics.BytesOut# <br>
  AvgQueueTime: #metrics.AvgQueueTime# <br>
  AvgReqTime: #metrics.AvgReqTime# <br>
  AvgDBTime: #metrics.AvgDBTime# <br>
  CachePops: #metrics.CachePops# <br>
  Simple Load: #GetMetricData("SIMPLE_LOAD")#<br>
  Prev Request Time: #GetMetricData("PREV_REQ_TIME")#ms<br>
  Avg Request Time: #GetMetricData("AVG_REQ_TIME")#ms<br>
</cfoutput>

I had always thought it would be interesting to write a scheduled task to record these values in a database, and then generate reports.


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Comments

Interesting, running this on a CF5 server seems to restart the CF service. Any idea why?
No idea, that should work on a CF5 server as well.
Will the GetMetricData() work on the J2EE version of MX?
This will work on J2EE servers, but you must initialize metrics in J2EE. See here: http://www.macromedia.com/cfusion/knowledgebase/index.cfm?id=tn_19120
Observation: On my CF5 server, it's the GetMetricData("SIMPLE_LOAD") line that seems to make the service hiccup. The other two lines ("PREV_REQ_TIME" and "AVG_REQ_TIME") work fine.
Does this work on cf 8 standard?
@Craig - Yes it does work on CF 8 Standard.

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