IBM Support

QRadar: No graphs in the System Monitoring EPS/FPS Dashboards



The EPS graphs under the System Monitoring Dashboard are blank.


The Event Rate (EPS) dashboard is displayed without any data.
image 10902


The Event Rate (EPS) dashboard widget might be blank if the relevant data is not being extracted at the Device Parsing stage of the event pipeline. When the RegexMonitor thread detects that the regex pattern extraction for any Custom Event Property (CEP) is running for over two seconds on one event, that CEP is disabled.

Here is a log excerpt demonstrating the error that is generated when RegexMonitor disables a property that exceeded the two second threshold:

Jul 29 11:43:41 [ecs-ec.ecs-ec] [Event Parser[5]] com.q1labs.core.shared.ariel.
ArielPropertyRegexExpressionDefinition: [WARN] [NOT:0030004100][ -] [-/- -]Expression 
"StatFilter.+1s\:\d+\,\d+\s\(peak\s\d+\,(\d+)" for custom property "Events per Second Raw - Peak 
1 Sec" with ID 216f41ac-d7e8-4c74-95c8-1e59cff1c371 has taken too long.  This expression has 
reached the maximum number of cancelations (1) and will be disabled.  Please check the validity of 
the expression. Payload was "Jul 29 11:33:09  [[]
[INFO] [NOT:0000006000][ -] [-/- -] 
Events per second: 1s:12,12 (peak 3442,3442) (compression: 0) 5s:59,59 (peak 738,738) (compression:
 0) 10s:62,65 (peak 535,535) (compression: 4) 30s:60,63 (peak 327,327) (compression: 4) 60s:60,63 
(peak 190,191) (compression: 5)

Diagnosing The Problem

In the Event Rate (EPS) dashboard, click View in Log Activity to open a log activity search for the relevant event logs.

If the search results table shows no values for the EPS/FPS fields, it is a good indication that the relevant values are not being extracted from the events correctly.

Check the Custom Event Properties configuration to confirm that the blank EPS graph is caused by disabled properties:

1.  In the QRadar Console GUI, navigate to the Admin -> Data Sources -> Custom Event Properties

2.  Filter with the string 'events' or 'flows' in the Search Properties box.

3.  Check to see whether any of these CEPs are disabled:

  • Events per Second Coalesced - Average 1 Min
  • Events per Second Coalesced - Peak 1 Second
  • Events per Second Raw - Average 1 Min
  • Events per Second Raw - Peak 1 Second
  • Flows per Second - Average 15 Min
  • Flows per Second - Peak 1 Min
image 10933

Resolving The Problem

If any of the CEPs related to the dashboard are disabled, enable those CEPs.

When default CEPs are disabled by the RegexMonitor, there is a performance degradation problem at device parsing that needs to be investigated further. 
Review recent changes to the deployment that affect the performance characteristics of the QRadar managed host where the error message was detected.  Such changes could include new log sources, new CEPs, changes to existing CEPs, changes to event composition or volume, and others.
If the issue persists, open a case with IBM Support.

Document Location


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Document Information

Modified date:
26 August 2021