description PM2-forever Overview
PM2-forever is a simpler, older utility within the PM2 ecosystem focused purely on keeping processes alive indefinitely. If your only requirement is 'if it dies, restart it immediately,' and you are using Node.js, this tool provides that functionality with minimal configuration overhead. It is less feature-rich than the full PM2 suite but highly effective for basic uptime guarantees.
help PM2-forever FAQ
What is PM2-forever used for?
PM2-forever is a simple Node.js utility intended to keep a process running indefinitely. If the process exits, it focuses on restarting it with minimal configuration.
How is PM2-forever different from a full process manager?
It focuses on the narrow job of restarting a dead process rather than offering a broad set of deployment and monitoring features. That simplicity can suit a small Node.js script that only needs automatic recovery.
What happens when a Node.js process managed by PM2-forever stops?
The utility is intended to detect the stopped process and start it again. The exact behavior still depends on how the process is launched and on the surrounding PM2 configuration.
Is PM2-forever useful for a complex production service?
It may be enough for a basic always-on script, but complex services often need logging, health checks, startup persistence, alerts, and controlled deployment. Teams should compare those needs with the simpler scope described for PM2-forever.
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