Robust Workflow Automation with Redis-Powered Locking
detail.loadingPreview
Ensure your critical automated processes run without conflicts. This workflow leverages Redis to implement robust locking, preventing duplicate executions and maintaining data integrity.
About This Workflow
This n8n workflow is designed to safeguard your automated processes by preventing concurrent executions. It utilizes Redis as a distributed locking mechanism. When an incoming webhook triggers the workflow, it first attempts to acquire a unique lock in Redis. If the lock is successfully acquired, the workflow proceeds to execute its designated tasks. If the lock is already held by another process, the incoming request is recognized as a duplicate and ignored. Upon successful completion of the workflow tasks, the Redis lock is automatically released, allowing subsequent requests to proceed. This pattern is crucial for maintaining data consistency and preventing race conditions in complex automation scenarios.
Key Features
- Concurrency Control: Implements Redis-based locking to prevent multiple instances of the same workflow from running simultaneously.
- Duplicate Request Handling: Automatically identifies and discards duplicate incoming requests that attempt to trigger an already-running process.
- Data Integrity: Safeguards against race conditions and ensures that data remains consistent by serializing workflow execution.
- Automated Lock Management: Acquires and releases Redis locks automatically, simplifying workflow management.
- Configurable Lock Duration: Allows setting a Time-To-Live (TTL) for Redis locks to prevent deadlocks.
How To Use
- Incoming Webhook: Configure the
Incoming Webhook Datanode to receive triggers from your external systems. - Data Extraction & Lock Value Generation: Use the
Fetch Webhook Data & Declare lockValuenode (a Code node) to parse incoming data and generate a unique lock identifier (e.g., usingvar1,var2,var3from the payload). - Check Redis Lock: Connect the
Check Redis Locknode (Redis node,getoperation) to query Redis for the existence of the lock key. - Conditional Logic for Lock: Utilize the
redisLock existence booleanandredisLock acquired booleans(IF nodes) to determine if the lock is available. TheredisLock existence booleanchecks if the lock is empty, indicating it's free. TheredisLock acquired booleanschecks if the lock doesn't exist, meaning it can be acquired. - Acquire Redis Lock: If the lock is available, the
Acquire Redis Locknode (Redis node,setoperation) will attempt to set the lock with a defined TTL. - Poll for Lock (Optional): If the lock is initially unavailable, the
Poll for locknode (Wait node) can be used to introduce a delay before retrying or moving to a different execution path. - Duplicate Check: Employ the
duplicateWebhook boolean(IF node) to compare the current lock value with the fetched lock value to identify and handle duplicate requests. - Workflow Execution: Connect your primary workflow logic (represented by
Workflow 1,Workflow 2,Workflow 3,Workflow Switch) to the successful lock acquisition path. - Discard Lock: After your workflow logic has completed, use the
Discard Redis Locknode (Redis node,deleteoperation) to release the acquired lock.
Apps Used
Workflow JSON
{
"id": "93eaa6dd-24d9-42d0-840d-692e4feacabb",
"name": "Robust Workflow Automation with Redis-Powered Locking",
"nodes": 13,
"category": "DevOps",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
Get This Workflow
ID: 93eaa6dd-24d9...
About the Author
AI_Workflow_Bot
LLM Specialist
Building complex chains with OpenAI, Claude, and LangChain.
Statistics
Related Workflows
Discover more workflows you might like
Robust Concurrency Control for n8n Workflows with Redis
Prevent simultaneous execution of critical n8n workflows or tasks using a centralized, Redis-backed locking mechanism. This reusable utility workflow ensures data integrity and resource management by allowing other workflows to acquire, check, and release locks.
Automate Qualys Report Generation and Retrieval
Streamline your Qualys security reporting by automating the generation and retrieval of reports. This workflow ensures timely access to crucial security data without manual intervention.
Automated PR Merged QA Notifications
Streamline your QA process with this automated workflow that notifies your team upon successful Pull Request merges. Leverage AI and vector stores to enrich notifications and ensure seamless integration into your development pipeline.