Graylog2 / Graylog2/graylog2-server

Detect and notify if the OS is dropping incoming messages due to overload

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feature triaged
Dominant language
Java
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Description

## What and Why ?
Sometimes, UDP messages are dropped by the operating system if it is overloaded and it cannot handle the incoming throughput.
The purpose of this feature request is to have Graylog detect and notify if messages are consistently being dropped by the OS.

UDP receive errors can be displayed using the following command :
`$ netstat -us`

![image](https://user-images.githubusercontent.com/764189/185199547-991f4934-8e61-4e41-9c7d-aa1050b43950.png)

## Your Environment
* Graylog Version: 4.3.5

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