Event table storage limit?

[davidmcdonald]

Is there an upper-limit on how many events that ServiceNow Event Management can handle? I have a customer who's calculated that they'd be sending about 6 million events at around 3 TB of data per week.

I know there's a blurb saying that SN Event Management can handle about 4,000 events per second per node.

https://www.servicenow.com/community/itom-forum/event-management-limitation/m-p/996903

I know that by default the Event [em_event] table is on a rotation of 1 day / 5 rotations, so event data is only stored for 5 days.

Has anyone seen or experienced a limit on how many events can be sent to SN Event Management, or an upper-limit on a ServiceNow instance's database size?

[Ravi Chandra_K]

Hello @davidmcdonald 

Some additional info to that:

Instances have 1 event processor job (Event Process 0) running on each node to process any platform events that are waiting to be processed.

The no of events depends on no of nodes an instance have, higher no of nodes, higher events capacity.

I have often seen automatic P2s getting created as event queue size increasing over a threshold. 

Please mark the answer as helpful and correct if helped.

Kind regards,

Ravi Chandra 

[Runjay Patel]

Hi @davidmcdonald ,

ServiceNow does not have a strict storage limit imposed by ServiceNow itself.

ServiceNow have OOB event deletion job (Delete Processed Events) that removes processed events from the sysevent table with condition state = processed and if i am not wrong then it will check in every 7 days.

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[davidmcdonald]

I couldn't find anything called "Delete Processed Events" that comes out of the box.

Was it a Scheduled Job? Delete Job?

I can't see it in SN Docs under "Components installed with Event Management".
https://www.servicenow.com/docs/bundle/xanadu-it-operations-management/page/product/event-management...