Tracking ColdFusion sessions within FusionReactor, by way of FREC logging

In FR5 (from update 5.0.6) we added support for graphing the ColdFusion Active Session Count if you go into Metrics->Custom Series you should see /ColdFusionServerMonitor/ACTIVESESSIONCOUNT as one of the custom graphs. The data is coming from the ColdFusion Server Monitoring API via FREC which is integrated into FR5 by default.

Darren, is there a documentation on how "ColdFusion Server Monitoring API" works to populate this chart?!

Thanks Darren,
but which API is called -> "cfide.adminapi.servermonitoring.getActiveSessionCount()" ?

You can add a metric series to FusionReactor using FRAPI. Basically your code posts metric values into FR and these will be added to the custom series.

Here is another example using the ColdFusion Server Monitor API to track memory:
<cfscript>
frapi = createObject("java", "com.intergral.fusionreactor.api.FRAPI").getInstance();
adminObj = createObject("component","cfide.adminapi.administrator").login("passwordhere");
srvMon = createObject("component","cfide.adminapi.servermonitoring");
</cfscript>

<cfobject type="java" action="create" class="java.lang.Thread" name="Thread">

<cfloop from=1 to=120 index="j">
<cfscript>

frapi.postNumericAggregateMetric("/CF/MemoryUsage",
srvMon.getRealtimeStats().JVMUSEDMEMORY / 1048576 );

WriteOutput( srvMon.getRealtimeStats().JVMUSEDMEMORY / 1048576 );

Thread.sleep( JavaCast( "long",1000 ) );

</cfscript>
<cfflush>
</cfloop>


Here is an example where you are adding a series called Revenue (doesn't have to be a technical series :-) ). Notice I've just put these into loops with delays because they don't run in a sampler. Typically you would embed them into your code when you have a metric to track. Currently we only show the average of the series if you post multiple values inside the same second.

<cfscript>
frapi = createObject("java", "com.intergral.fusionreactor.api.FRAPI").getInstance();
</cfscript>

<cfobject type="java" action="create" class="java.lang.Thread" name="Thread">

<cfloop from=1 to=120 index="j">
<cfscript>
frapi.postNumericAggregateMetric("/Website/Revenue", RandRange(100,300));
Thread.sleep( JavaCast( "long",1000 ) );
</cfscript>
<cfflush>
</cfloop>



I'm not sure what the unknown series is, can you provide me with a little more information?