As of now, Geth disconnects peers only on protocol error or timeout,
meaning once connection slots are filled, the peerset is largely fixed.
As mentioned in https://github.com/ethereum/go-ethereum/issues/31321,
Geth should occasionally disconnect peers to ensure some churn.
What/when to disconnect could depend on:
- the state of geth (e.g. sync or not)
- current number of peers
- peer level metrics
This PR adds a very slow churn using a random drop.
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Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
Co-authored-by: Felix Lange <fjl@twurst.com>
