Does indexing impact ServiceNow instance performance?

[Marek Stepien]

The full (AI Search) indexing of our Knowledge (kb_knowledge) table or Case (sn_customerservice_case) table takes over 10 hours.

We are planning to change indexing filters, and that will require the full re-indexing.
If we run it during the week, does it impact the instance performance?
If yes, we will need to run it over the weekend.

[SANDEEP DUTTA]

Hi @Marek Stepien ,

 Due to the large amounts of data that must be processed over  Knowledge (kb_knowledge) table or Case (sn_customerservice_case) tables, it's not recommended to do during weekdays as the users might find latency in processing anything which is because of Performance impact.

I would do it on weekend.

[SANDEEP DUTTA]

Hi @Marek Stepien ,

[Maik Skoddow]

Hi @Marek Stepien 

It is not possible to provide a meaningful answer to this question without additional context, as the performance impact depends on several factors that have not been provided and may not even be known. For example:

• How many application nodes are in your environment?

• Is one of these nodes a dedicated worker node for re-indexing? If so, user experience may remain unaffected, as users would be directed to the UI nodes.

• What is the typical number of users per application node during the week and on weekends?

• What is the usual load observed on your application nodes?

These are just a few of the many considerations. Without a detailed analysis, it is not possible to accurately predict the potential impact on performance.

Best regards,
Maik