Agent Metric Clamp Message in Status Console
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Agent Metric Clamp Message in Status Console


Article ID: 246069


Updated On:


CA Application Performance Management (APM / Wily / Introscope)


I have several messages in our status console about introscope.agent.metric.clamp, in fact I have this message in every collector (we have 4 collectors).


However, it is strange because the collector with more metrics has 585.4k and the historical is approximately 9M, and in our configuration we have set the metrics live limit to 5.000.000, and the historical metrics to 50.000.000. So here is not the problem.. 

       <clamp id="">
                Per EM limit. Takes into account only live metrics (i.e. currently reporting from Agents)
            <threshold value="5000000"/>
        <clamp id="introscope.enterprisemanager.metrics.historical.limit">
                Per EM limit. Takes into account metrics with Smartstor data (i.e. live and historical metrics)
            <threshold value="50000000"/>

And if we see the metrics by agents, it is the same because the value bigger is 45k and the configuration for the clamp for the agents is 500.000

# Agent Metric Clamp Configuration
# ================
# The following setting configures the Agent to approximately clamp the number of metrics sent to the EM  
# If the number of metrics pass this metric clamp value then no new metrics will be created.  Old metrics will still report values.
# The value must be equal to or larger than 1000 to take effect. Lower value will be rejected.
# The default value is 5000. 
# You must restart the managed application before changes to this property take effect.

My problem is that if we have this clamp in the collector.. maybe, we are not receiving all metrics, this is my doubt about this. But also, I have not seen the clamp symbol on the name of the agents in the investigator, so the only thing is to know what means the messages in the status console.



Release : 10.7.0

Component : Introscope


Raising   introscope.enterprisemanager.agent.metrics.limit removed the clamp message.

Additional Information

The description showed one apm_events_threshold-config.xml that has " and "introscope.enterprisemanager.metrics.historical.limit

Are these set the same on all collectors/MOM?

But I don't see introscope.enterprisemanager.agent.metrics.limit

Please make sure this is set high enough on ALL collectors/MOM. This is the overall setting and is often overlooked.