On March 8, Lei Yang, co-founder of MegaETH, posted on social media that yesterday's RPC outage exposed an interesting edge case. Debugging the call of the RPC method caused the server to allocate a large amount of memory for the overlong string, which eventually led to memory exhaustion. The MegaETH team decided to build the RPC stack on its own so that multiple optimizations can be applied on the RPC stack to improve performance. From a performance point of view, the effect is very good, but the cost is that the team needs to handle the operation and maintenance of the infrastructure on its own. It is expected that there will be more outages in the future, and more post-mortem analysis reports will also be released, which I hope will trigger interesting discussions. It encourages everyone to provide more edge cases so that they can be tested now, rather than problems arising in a few months.