These warnings occur when too many listeners are attached. Reducing or managing listeners can resolve it.

The 'EventEmitter memory leak' warning in Node.js appears when more than 10 listeners are attached to a single event, potentially leading to memory consumption issues. This usually results from dynamically adding listeners without removing them, which can happen in server setups with repeated database connections or WebSocket events that aren't cleaned up after use. To resolve this, either increase the maximum listeners with emitter.setMaxListeners() if high listeners are expected, or, more effectively, use removeListener or off to detach listeners after their function is complete. Also, once listeners automatically remove themselves post-trigger, reducing the buildup of active listeners. If using nested events, review code to ensure listeners aren’t unintentionally stacking through repeated calls. Regular auditing of listeners with emitter.listenerCount() can help track listener accumulation over time. Efficient event management not only prevents memory issues but enhances app stability by managing resources actively.