Intermittent connection pool exhaustion in Hardhat Network under concurrent JSON‑RPC load
Goal: Identify the concurrency level at which Hardhat Network’s built‑in connection pool begins to reject or delay JSON‑RPC requests, producing intermittent timeouts or 'connection pool exhausted' messages. Constraints: The pool size is not documented or configurable in hardhat.config.js, and its effective limit changes depending on whether the network is fo
web3js
hardhat