BugZero | ServiceNow BugID PRB1788540 - AWS Events Driven discovery is overloading Default...

ServiceNow - Defect ID: PRB1788540

AWS Events Driven discovery is overloading Default Semaphores.

ServiceNow - Defect ID: PRB1788540

AWS Events Driven discovery is overloading Default Semaphores.

Last updated on July 15th, 2026

BugZero Risk Score
8.5 High

Overall: 8.5

Severity: 9.1

Community: 3.7

Lifecycle: 9.1

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Bug Details

Priority: Sev1
Article Views: 457
Affected Component: Miscellaneous

Description

The transaction on '/api/now/cloud_event' endpoint is executing on DEFAULT Semaphore causing instance user experience to become slow. During a severe influx, this has the potential to cause instance outage.

Steps to Reproduce

Configure the servicenow instance endpoint for AWS event driven discovery as this : https://<username>:<user_password>@<instance_URL>/api/now/cloud_event During severe influx of the AWS event, this issue can appear.

Workaround

Modify the endpoint in AWS SNS Topic to this : https://<username>:<user_password>@<instance_URL>/api/now/cloud_event?sysparm_rest_integration_pool=true. Please note that parameter '?sysparm_rest_integration_pool=true' has been added. This will divert the AWS events to the API_INT integration semaphore and keep DEFAULT semaphore available for other transactions.

Related Problem

PRB1788540

Change history

2026-07-15 Added: Australia Patch 2, Australia Patch 2 Hot Fix 1, Australia Patch 2 Hot Fix 2, Australia Patch 2 Hot Fix 2a, Australia Patch 2 Hot Fix 3, Australia Patch 2 Hot Fix 3a, Australia Patch 3, Australia Patch 3 Hot Fix 1, Australia Patch 3 Hot Fix 2, Australia Patch 4, Xanadu Patch 11 Hot Fix 6a, Zurich Patch 10 Hot Fix 1, Zurich Patch 10 Hot Fix 2, Zurich Patch 10 Hot Fix 3, Zurich Patch 10 Hotfix 4, Zurich Patch 11, Zurich Patch 7b Hot Fix 1, Zurich Patch 7b Hot Fix 2, Zurich Patch 7b Hot Fix 3, Zurich Patch 8 Hot Fix 4, Zurich Patch 8 Hot Fix 5, Zurich Patch 9 Hot Fix 2, Zurich Patch 9 Hot Fix 3, Zurich Patch 9 Hot Fix 4

2026-07-15 Removed: Australia, Australia EA Hot Fix 1, Xanadu Patch 1 Hot Fix 3b, Xanadu Patch 10 Hot Fix 1a, Xanadu Patch 11 Hot Fix 1a, Xanadu Patch 11 Hot Fix 2a, Xanadu Patch 3 Hot Fix 1, Xanadu Patch 4b, Xanadu Patch 5, Zurich, Zurich Patch 2, Zurich Patch 2 Hot Fix 1, Zurich Patch 3, Zurich Patch 3 Hot Fix 2, Zurich Patch 4, Zurich Patch 4 Hot Fix 2, Zurich Patch 4 Hot Fix 3, Zurich Patch 4 Hot Fix 3a, Zurich Patch 4 Hot Fix 4, Zurich Patch 4 Hot Fix 4b, Zurich Patch 6, Zurich Patch 6 Hot Fix 1, Zurich Patch 7 Hot Fix 1, Zurich Patch 7m

2026-04-22 Added: Australia, Australia EA Hot Fix 1, Australia Patch 1, Xanadu Patch 11 Hot Fix 1a, Xanadu Patch 11 Hot Fix 2a, Zurich Patch 3 Hot Fix 2, Zurich Patch 4, Zurich Patch 4 Hot Fix 2, Zurich Patch 4 Hot Fix 3, Zurich Patch 4 Hot Fix 3a, Zurich Patch 4 Hot Fix 3b, Zurich Patch 4 Hot Fix 4, Zurich Patch 4 Hot Fix 4b, Zurich Patch 5, Zurich Patch 6, Zurich Patch 6 Hot Fix 1, Zurich Patch 6 Hot Fix 2, Zurich Patch 7, Zurich Patch 7 Hot Fix 1, Zurich Patch 7a, Zurich Patch 7m, Zurich Patch 8

2026-04-22 Removed: Xanadu Patch 1 Hot Fix 2a, Xanadu Patch 10, Xanadu Patch 10 Hot Fix 1, Xanadu Patch 10 Hot Fix 1b, Xanadu Patch 7, Xanadu Patch 7a, Xanadu Patch 8 Hot Fix 1, Xanadu Patch 9, Xanadu Patch 9a, Xanadu Patch 9a Hot Fix 1, Zurich Patch 1, Zurich Patch 1 Hot Fix 1b, Zurich Patch 1 Hot Fix 2, Zurich Patch 2 Hot Fix 2, Zurich Patch 3 Hot Fix 1

2025-11-18 Added: Utah Patch 6, Xanadu Patch 10, Xanadu Patch 10 Hot Fix 1, Xanadu Patch 10 Hot Fix 1a, Xanadu Patch 10 Hot Fix 1b, Xanadu Patch 7, Xanadu Patch 7a, Xanadu Patch 7b Hot Fix 1, Xanadu Patch 8 Hot Fix 1, Xanadu Patch 9, Xanadu Patch 9a, Xanadu Patch 9a Hot Fix 1, Xanadu Patch 9b, Zurich, Zurich Patch 1, Zurich Patch 1 Hot Fix 1, Zurich Patch 1 Hot Fix 1a, Zurich Patch 1 Hot Fix 1b, Zurich Patch 1 Hot Fix 2, Zurich Patch 2, Zurich Patch 2 Hot Fix 1, Zurich Patch 2 Hot Fix 2, Zurich Patch 3, Zurich Patch 3 Hot Fix 1

2025-11-18 Removed: Utah Patch 4, Vancouver Patch 10 Hot Fix 2b, Vancouver Patch 10 Hot Fix 3b, Xanadu, Xanadu Patch 1, Xanadu Patch 3 Hot Fix 2, Xanadu Patch 4 Hot Fix 1, Xanadu Patch 4 Hot Fix 2, Xanadu Patch 4a, Xanadu Patch 4b Hot Fix 2, Xanadu Patch 5 Hot Fix 1, Xanadu Patch 6, Yokohama

2025-05-07 Added: Utah Patch 4, Vancouver Patch 10 Hot Fix 2b, Vancouver Patch 10 Hot Fix 3b, Xanadu, Xanadu Patch 1, Xanadu Patch 1 Hot Fix 2, Xanadu Patch 1 Hot Fix 2a, Xanadu Patch 1 Hot Fix 3b, Xanadu Patch 2, Xanadu Patch 3 Hot Fix 1, Xanadu Patch 3 Hot Fix 2, Xanadu Patch 4, Xanadu Patch 4 Hot Fix 1, Xanadu Patch 4 Hot Fix 2, Xanadu Patch 4a, Xanadu Patch 4b, Xanadu Patch 4b Hot Fix 2, Xanadu Patch 5, Xanadu Patch 5 Hot Fix 1, Xanadu Patch 6, Yokohama

Relevant Products

Click on a version to see all relevant bugs

Affected versions:Australia Patch 1, Australia Patch 2, Australia Patch 2 Hot Fix 1, Australia Patch 2 Hot Fix 2, Australia Patch 2 Hot Fix 2a, Australia Patch 2 Hot Fix 3, Australia Patch 2 Hot Fix 3a, Australia Patch 3, Australia Patch 3 Hot Fix 1, Australia Patch 3 Hot Fix 2, Australia Patch 4, Utah Patch 6, Xanadu Patch 1 Hot Fix 2, Xanadu Patch 11 Hot Fix 6a, Xanadu Patch 2, Xanadu Patch 4, Xanadu Patch 7b Hot Fix 1, Xanadu Patch 9b, Zurich Patch 1 Hot Fix 1, Zurich Patch 1 Hot Fix 1a, Zurich Patch 10 Hot Fix 1, Zurich Patch 10 Hot Fix 2, Zurich Patch 10 Hot Fix 3, Zurich Patch 10 Hotfix 4, Zurich Patch 11, Zurich Patch 4 Hot Fix 3b, Zurich Patch 5, Zurich Patch 6 Hot Fix 2, Zurich Patch 7, Zurich Patch 7a, Zurich Patch 7b Hot Fix 1, Zurich Patch 7b Hot Fix 2, Zurich Patch 7b Hot Fix 3, Zurich Patch 8, Zurich Patch 8 Hot Fix 4, Zurich Patch 8 Hot Fix 5, Zurich Patch 9 Hot Fix 2, Zurich Patch 9 Hot Fix 3, Zurich Patch 9 Hot Fix 4

Fixed versions: No known fixed versions

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: No known fixed versions

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ServiceNow - Defect ID: PRB1788540

AWS Events Driven discovery is overloading Default Semaphores.

ServiceNow - Defect ID: PRB1788540

AWS Events Driven discovery is overloading Default Semaphores.

Last updated on July 15th, 2026

BugZero Risk Score8.5 High

Bug Details

Description

Steps to Reproduce

Workaround

Related Problem

Top ServiceNow Defects

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BugZero Risk Score
8.5 High