Skip to page contentSkip to chat
ServiceNow support
    • Community
      Ask questions, give advice, and connect with fellow ServiceNow professionals.
      Developer
      Build, test, and deploy applications
      Documentation
      Find detailed information about ServiceNow products, apps, features, and releases.
      Impact
      Accelerate ROI and amplify your expertise.
      Learning
      Build skills with instructor-led and online training.
      Partner
      Grow your business with promotions, news, and marketing tools
      ServiceNow
      Learn about ServiceNow products & solutions.
      Store
      Download certified apps and integrations that complement ServiceNow.
      Support
      Manage your instances, access self-help, and get technical support.
Event Management - Delete Work Notes job is causing large table scans which sometime run for hours - Known Error
  • >
  • Knowledge Base
  • >
  • Known Error (Knowledge Base)
  • >
  • Event Management - Delete Work Notes job is causing large table scans which sometime run for hours
KB0623160

Event Management - Delete Work Notes job is causing large table scans which sometime run for hours


441 Views Last updated : Apr 7, 2024 public Copy Permalink
KB Summary by Now Assist

Description

The scheduled job Event Management  - Delete Work Notes is causing large table scans, which sometime run for hours.

There is a GlideRecord call from this job to sys_journal_field table. This call may cause database servers to run very high on IO WAIT due to large table scans.

 

Steps to Reproduce

  1. Use an instance with Event Management com.glideapp.itom.snac plugin active
  2. Use a large sys_journal_field table
  3. Run the job and collect the SQL from the database side. For large tables, SQL runs for minutes and sometimes hours.

Workaround

Add an index on sys_journal_field table on name, element_id fields in order to prevent a full table scan.
 

Related Problem: PRB884265

The world works with ServiceNow.

Sign in for more! There's more content available only to authenticated users Sign in for more!
Did this KB article help you?
Did this KB article help you?

How would you rate your Now Support digital experience?

*

Very unsatisfied

Unsatisfied

Neutral

Satisfied

Very satisfied

Very unsatisfied

Unsatisfied

Neutral

Satisfied

Very satisfied

What can we improve? Please select all that apply.

What are we doing well? Please select all that apply.

Tell us more

*

Do you expect a response from this feedback?

  • Terms and conditions
  • Privacy statement
  • GDPR
  • Cookie policy
  • © 2025 ServiceNow. All rights reserved.