From: Matt Corallo <git@bluematt.me>
Date: Tue, 3 Dec 2019 06:46:35 +0000 (-0500)
Subject: Impose a max conns/sec
X-Git-Url: http://git.bitcoin.ninja/index.cgi?p=dnsseed-rust;a=commitdiff_plain;h=b38bd902d7e10b3e944f613823a3d4d8000030be

Impose a max conns/sec
---

diff --git a/src/datastore.rs b/src/datastore.rs
index 5f9874f..1ae9dd9 100644
--- a/src/datastore.rs
+++ b/src/datastore.rs
@@ -19,6 +19,7 @@ use regex::Regex;
 use crate::bgp_client::BGPClient;
 
 pub const SECS_PER_SCAN_RESULTS: u64 = 15;
+const MAX_CONNS_PER_SEC_PER_STATUS: u64 = 30;
 
 #[derive(Clone, Copy, Hash, PartialEq, Eq)]
 pub enum AddressState {
@@ -610,7 +611,8 @@ impl Store {
 			for (idx, state_nodes) in nodes.state_next_scan.iter_mut().enumerate() {
 				let rescan_interval = cmp::max(self.get_u64(U64Setting::RescanInterval(AddressState::from_num(idx as u8).unwrap())), 1);
 				let cmp_time = cur_time - Duration::from_secs(rescan_interval);
-				let split_point = cmp::min(SECS_PER_SCAN_RESULTS * state_nodes.len() as u64 / rescan_interval,
+				let split_point = cmp::min(cmp::min(SECS_PER_SCAN_RESULTS * state_nodes.len() as u64 / rescan_interval,
+							SECS_PER_SCAN_RESULTS * MAX_CONNS_PER_SEC_PER_STATUS),
 						state_nodes.binary_search_by(|a| a.0.cmp(&cmp_time)).unwrap_or_else(|idx| idx) as u64);
 				let mut new_nodes = state_nodes.split_off(split_point as usize);
 				mem::swap(&mut new_nodes, state_nodes);