Prevent simultaneous workflow executions with Redis

Purpose

This ensures that executions of scheduled workflows do not overlap when they take longer than expected.

How it works

• This is a separate workflow which monitors the execution of the main workflow
• Stores a flag in Redis (key dynamically named after workflow ID) which indicates if the main workflow is running or idle
• Only calls the main workflow if the last execution has finished

Setup

• Update the credentials suitable for your Redis instance
• Replace the Schedule Trigger of your main workflow by an Execute Workflow Trigger
• Copy the workflow ID from the URL
• Paste the workflow ID in the Execute Workflow Node of this workflow
• Configure the Schedule Trigger Node