فهم فشل وآليات الإخطار في الأنظمة DID: تفسير مخطط BPMN

In today's world of digital services, ensuring the availability and reliability of systems is crucial. One way to achieve this is through a failover system, which ensures that if one system goes down, another takes its place. Here's a breakdown of the Failover and Notification BPMN Diagram to explain how this process works in a structured manner

Failover and Notification BPMN Diagram

1.Start Event:

• The process starts with the resolver system initiating a check of the main URL.

2.Monitor Main URL Task:

• The Monitoring system monitors the availability of the main URL.

• • • Intermediate Event (Failure Detected): The monitoring system detects that the main URL is down and triggers a response.
    • Detect Failure Task: The monitoring system confirms the failure of the main URL.

3.Send Update Triggered:

• Once the main database is triggered by an update.

4.Notify Backup System Task:

• The main database sends notification to the backup system about the failure of the main URL. The backup database got notification and replaced the main database instantly.

5.End Event:

• The process ends once the backup system is notified and replaced successfully.

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written by : Alaa Rezk , Senior software developer