Please report: excessive number of pending callbacks: 501. some pending callbacks that might have leaked by never being called from native code:

Query: please report: excessive number of pending callbacks: 501. some pending callbacks that might have leaked by never being called from native code:

This error message indicates that there are 501 pending callbacks that have not been resolved or executed. Some of these pending callbacks may have leaked by never being called from the native code.

Pending callbacks are typically used in asynchronous operations or event handling. They allow certain tasks or functions to be executed at a later time, without blocking the rest of the program’s execution.

It is important to properly manage and handle these pending callbacks to prevent memory leaks and ensure the smooth execution of the program. Leaked pending callbacks refer to those that are not being called or resolved, potentially causing performance issues or memory consumption.

Here is an example to illustrate how pending callbacks work:

    
function asyncOperation(callback) {
  // Simulating an asynchronous operation
  setTimeout(callback, 1000);
}

function handleData(data) {
  console.log('Received data:', data);
}

// Initiating an async operation
asyncOperation(function() {
  // Handling the received data
  handleData('Example data');
});
    
  

In the above example, the asyncOperation function initiates an asynchronous operation that takes 1 second to complete. The function accepts a callback parameter, which will be executed after the operation is finished. The handleData function is responsible for processing the received data.

When the asyncOperation is called, it starts running in the background, and the rest of the program continues its execution. After 1 second, the callback function passed to asyncOperation is triggered. This callback is the pending callback, as it is waiting to be executed.

In this example, the pending callback is properly handled by the handleData function. However, if the callback is never called, it would become a leaked pending callback.

To resolve the reported issue of excessive pending callbacks, it is necessary to investigate where and why these callbacks are not being executed. Debugging and profiling tools can help identify the root causes and provide insights into the underlying code that is responsible for the pending callbacks.

By ensuring that all pending callbacks are properly called or resolved, the reported error can be resolved, preventing performance issues and potential memory leaks.