Loading...
Loading...
An issue has been identified in the “Discovery Admin Workspace” (App Scope: sn_disco_workspace) store app version 1.19.0 and 1.20.0 that can result in performance degradation such as slowness, session timeouts, Semaphore Exhaustion, and node restarts due to Out-Of-Memory (OOM) errors. 1.19.0 version of the store app introduced “sn_disco_workspace.running_process_count_last_run” system property that can be updated periodically by the “Discovery Admin Workspace breakdown table population” scheduled job (SysID: e2f5e9fa53517110f087ddeeff7b12fb).This system property is missing “Ignore Cache” checked. Updating this system property without “Ignore Cache” enabled triggers a full system cache flush and can result in degradation of performance instance-wide.
Upgrade "Discovery Admin Workspace" Store App to version 1.19.0 or 1.20.0 Verify that ‘sn_disco_workspace.running_process_count_last_run’ system property is created without "Ignore Cache" checked.
This issue was fixed in version 1.20.8 of the “Discovery Admin Workspace” store app. Customers with instances still having 1.19.0 or 1.20.0 version of “Discovery Admin Workspace” store app are highly recommended to either update to 1.20.8 version or apply the below workaround. Updating the store app to the fixed 1.20.8 version is the preferred option. If you are unable to update, the following workaround can be applied. This workaround is not required if the store app has already been updated, or is scheduled to be updated, to version 1.20.8.
1. Go to sys_properties.LIST in the navigator. 2. Search and open ‘sn_disco_workspace.running_process_count_last_run’ system property 3. Check the "Ignore Cache" check box and save the property. This change prevents the job from flushing the entire system cache and mitigates the performance impact. Maintenance will be performed on instances running 1.19.0 or 1.20.0 versions of the “Discovery Admin Workspace” store app that have not yet applied the above-mentioned workaround. FAQs Q: When will this maintenance happen? A: A COMM record will be sent to impacted customers with the dates and times if an instance is determined for maintenance. Notifications will be sent via Now Support (using Communication Records) to customers. Q: What does the maintenance involve? A: The maintenance involves updating the ‘sn_disco_workspace.running_process_count_last_run’ system property to check/select the ‘Ignore Cache’ checkbox. This is done only after confirming that the customer instance is on affected 1.19.0 or 1.20.0 store app version and have not performed this workaround already. Q: Will the maintenance cause any downtime? A: The maintenance has been tested and will last less than five minutes. There is no anticipated service impact or downtime. Q: Can customers opt out of this maintenance? A: Customers can opt out of this maintenance if they can upgrade the ‘Discovery Admin Workspace’ store app to the fixed 1.20.8 version or apply the workaround manually. If not, we recommend that all customers notified about this issue undergo this maintenance to avoid any performance issues. If there is any scheduling conflict, customers can download the maintenance script and run it from System Definition → Scripts - Background. It is recommended to run this in the off-business hours.
PRB2080488
Click on a version to see all relevant bugs
ServiceNow Integration
Learn more about where this data comes from
BugZero Plan
Streamline upgrades with automated vendor bug scrubs
BugZero Prevent
Wish you caught this bug sooner? Get proactive today.