Book Image

Mastering ServiceNow - Second Edition

Book Image

Mastering ServiceNow - Second Edition

Overview of this book

ServiceNow is a SaaS application that provides workflow form-based applications. It is an ideal platform for creating enterprise-level applications giving requesters and fulfillers improved visibility and access to a process. ServiceNow-based applications often replace email by providing a better way to get work done. The book steps through the main aspects of the ServiceNow platform, from the ground up. It starts by exploring the core architecture of ServiceNow, including building the right data structure. To add business logic and control data, and interactivity to user interaction, you will be shown how to code on both server and the client. You will then learn more about the power of tasks, events and notifications. The book will then focus on using web services and other mechanisms to integrate ServiceNow with other systems. Furthermore, you will learn how to secure applications and data, and understand how ServiceNow performs logging and error reporting. You will then be shown how to package your applications and changes, so they can be installed elsewhere and ways to maintain them easily. If you wish to create an alternative simple interface, then explore ways to make ServiceNow beautiful using Service Portal. By the end of the book, you will know the fundamentals of the ServiceNow platform, helping you be a better ServiceNow System Administrator or developer.
Table of Contents (18 chapters)
Mastering ServiceNow Second Edition
Credits
Notice
About the Author
About the Reviewer
www.PacktPub.com
Preface

Scheduling jobs


You may be wondering how the platform processes the event queue. What picks them up? How often are they processed? In order to make things happen automatically, ServiceNow has a system scheduler. Processing the event queue is one job that is done on a repeated basis.

Tip

ServiceNow sometimes creates extra nodes that only process events. These concentrate on the processing of things such as e-mails, enabling the other application nodes to better serve user interactions.

To see what is going on, navigate to System Scheduler > Scheduled Jobs > Today's Scheduled Jobs. This is a link to the Schedule Item [sys_trigger] table, a list of everything the system is doing in the background. You will see a job that collects database statistics, another that upgrades the instance (if appropriate), and others that send and receive e-mails or SMS messages. You should also spot one called Events Process, which deals with the event queue.

A schedule item has a Next action Date and Time field...