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Description

Slowness all over the instance from navigating to different modules like event management or workflows. 


Script: 

2020-08-17 11:46:53 (970) worker.3 worker.3 txid=d0a73e37dbea WARNING *** WARNING *** Starting cache flush
2020-08-17 11:46:54 (083) glide.memory.watcher URL= JOB: ASYNC: Event rule grouping calculation, THREAD= glide.scheduler.worker.3, FG= false, TYPE= 4, STATE= 4, USER= system, TIME= 48,222, MEM= 0, ATTRIBUTES= {}
...
2020-08-17 11:46:56 (712) worker.3 worker.3 txid=d0a73e37dbea Completed: ASYNC: Event rule grouping calculation in 0:00:50.482, next occurrence is null



Cause

'ASYNC: Event rule grouping calculation' is created by BR called 'Event rule grouping calculation'
Link: https://<INSTANCE_NAME>.service-now.com/nav_to.do?uri=sys_script.do?sys_id=b8ee16839312020056f8f179077ffb6d


Resolution

he slowness of instance "QVCTest" seems related to Business Rule called 'Event rule grouping calculation'
Link:
https://<INSTANCE_NAME>.service-now.com/nav_to.do?uri=sys_script.do?sys_id=b8ee16839312020056f8f179077ffb6d


We can decrease the processing time and memory used of the instance by lower the amount of events being processed.
The property that control it is:
Number of events to handle for event rules processes - "evt_mgmt.event_rules.num_of_events_to_handle"

which is currently set to 50000.
You can lower it to 1000. The implication is that you will have less suggestions, but it won't have other affects.

evt_mgmt.event_rules.num_of_events_to_handle
https://<INSTANCE_NAME>.service-now.com/nav_to.do?uri=sys_properties.do?sys_id=952ad5107f001200f59f72a3cefa915f


Article Information

Last Updated:2020-09-07 07:39:10
Published:2020-09-01