HorizontalDiscoverySensor sensor consumes Excessive Memory with some Horizontal Discovery patterns which generate multi page inputs. 

Steps to Reproduce

The issue was observed with 'EMC ISILON' pattern multipage sensor runs leading to Excessive Memory alerts on the affected nodes.


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As a workaround, please import the attached HorizontalDiscoverySensor sensor xml file which contains a code modification to the affected instance. 
HorizontalDiscoverySensor_with_fix_ discovery_sensor_2f32f7899f230200fe2ab0aec32e706a.xml

Note: Please remember that modifying the sensor will lead to it being skipped it when upgrading the instance. After the upgrade to a fixed version, check the skipped changes from the upgrade history and revert the "HorizontalDiscoverySensor" Sensor to the out of box version.

Related Problem: PRB1372949

Seen In

SR - IRM - GRC Profiles - Madrid 2019 Q2
SR - IRM - GRC Workbench - New York 2019 Q3
SR - IRM - Policy and Compliance - Madrid 2019 Q2
SR - IRM - Risk Management - New York 2019 Q3
SR - ITOM - CMDB CI Class Models - 201909
SR - ITOM - Discovery and Service Mapping - 201908

Intended Fix Version


Fixed In

Madrid Patch 10
New York Patch 6
Orlando Patch 1

Safe Harbor Statement

This "Intended Fix Version" information is meant to outline ServiceNow's general product direction and should not be relied upon in making a purchasing decision. The information provided here is for information purposes only and may not be incorporated into any contract. It is not a commitment, promise, or legal obligation to deliver any material, code, or functionality. The development, release, and timing of any features or functionality described for our products remains at ServiceNow's sole discretion.

Associated Community Threads

There is no data to report.

Article Information

Last Updated:2020-06-29 15:02:06
HorizontalDiscoverySensor_with_fix_ discovery_sensor_2f32f7899f230200fe2ab0aec32e706a.xml