Record 'Recent Slow Response Events'

Ignition
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1

Is there a way to log or record the msgs that show up in the 'Recent Slow Response Events'? We are using 8.1.45 . These are found under Ign GW’s Status > Systems > Overview

I don’t expect a straightforward location to pick up these msgs but I have seen people here use things like “from com.inductiveautomation.ignition.gateway import IgnitionGateway” to expose things like ‘mod_mgr.resolveClass('com.inductiveautomation.perspective.gateway.api.PerspectiveContext')’ and do magic with it :star_struck: so was hoping there is a way to extract this info. If it can reach the GW webpage then we should be able to get it as well!

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The Metrics Dashboard has the clock drift detector as a watchable value:

It would also be possible to monitor the value of that gauge programmatically, starting from a GatewayContext to retrieve the metrics registry.

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Any sample code that I could use to get started? I have no experience with this one

4

You can access the MetricRegistry:

Which is a class directly from a third party library.
You could ask it for the set of gauges it contains, which will return a dictionary:

The Guage object you get from that dictionary (at the ClockDriftDetector.driftGauge key) will have a getValue method: Gauge - metrics-core 4.0.3 javadoc

So it would look something like:

from com.inductiveautomation.ignition.gateway import IgnitionGateway

__gateway = IgnitionGateway.get()
__metrics = __gateway.metricRegistry
__driftGauge = __metrics.gauges["ClockDriftDetector.driftGauge"]

def getDriftValue():
	return __driftGauge.value
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