Implement rate limit

[twoeths]

Is your feature request related to a problem? Please describe.

We don't want to serve beacon_blocks_by_range and beacon_blocks_by_root too much

Describe the solution you'd like

• Per peer: Allow up to x requests per period
• Per peer: Allow up to x blocks per period
• Across peers: Allow up to x requests per period
• Across peers: Allow up to x blocks per period

Reference params from Teku:

• Per peer: up to 50 requests per 1 minute
• Per peer: up to 500 blocks per 1 minute

[dapplion]

@tuyennhv Should the rate limiting apply only to block requests or any reqresp request?

[twoeths]

@tuyennhv Should the rate limiting apply only to block requests or any reqresp request?

oh initially I thought it's for block requests only as it caused the performance issue to us but looks like other client apply to other reqresp requests as well (with request count limit) so we should do the same thing @dapplion

[dapplion]

@tuyennhv Should the rate limiting apply only to block requests or any reqresp request?

oh initially I thought it's for block requests only as it caused the performance issue to us but looks like other client apply to other reqresp requests as well (with request count limit) so we should do the same thing @dapplion

Yeah we should rate limit everything, we should generalize the rate limiter design to work for all requests