High CPU usage observed when running REST API multiple times an hour.

Products

• Data Loss Prevention Core Package

Issue/Introduction

High CPU usage observed when running REST API multiple times an hour.

Environment

DLP 16.1

REST API Client (Custom)

Cause

Rest API client is not using/re-using jsessionID.

Resolution

Consider the following recommendations when you access the API service with your client:

• Use a dedicated API user with specific privileges for auditing changes. See "Creating a User and Role for an Incident API Client" in the Symantec Data Loss Prevention Help Center.
• Provide valid credentials via HTTP authentication headers for initial requests.
• You can use the values for the content-type header based on the API.
  JSON - application/json
  File - application/octet-stream
  Image - image/jpeg
  Zip file - application/zip
  Text - text/csv
• Reuse the JSESSIONID cookie for subsequent calls during an active session (default session timeout is 15 minutes).

Additional Information

Introduction to the Data Loss Prevention (DLP) API content