lighthouse/common
Age Manning 8dd9249177 Enforce a timeout on peer disconnect (#3757)
On heavily crowded networks, we are seeing many attempted connections to our node every second. 

Often these connections come from peers that have just been disconnected. This can be for a number of reasons including: 
- We have deemed them to be not as useful as other peers
- They have performed poorly
- They have dropped the connection with us
- The connection was spontaneously lost
- They were randomly removed because we have too many peers

In all of these cases, if we have reached or exceeded our target peer limit, there is no desire to accept new connections immediately after the disconnect from these peers. In fact, it often costs us resources to handle the established connections and defeats some of the logic of dropping them in the first place. 

This PR adds a timeout, that prevents recently disconnected peers from reconnecting to us.

Technically we implement a ban at the swarm layer to prevent immediate re connections for at least 10 minutes. I decided to keep this light, and use a time-based LRUCache which only gets updated during the peer manager heartbeat to prevent added stress of polling a delay map for what could be a large number of peers.

This cache is bounded in time. An extra space bound could be added should people consider this a risk.

Co-authored-by: Diva M <divma@protonmail.com>
2023-02-14 03:25:42 +00:00
..
account_utils Clippy lints for rust 1.66 (#3810) 2022-12-16 04:04:00 +00:00
clap_utils Verify execution block hashes during finalized sync (#3794) 2023-01-09 03:11:59 +00:00
compare_fields Clippy 1.67 (#3916) 2023-01-27 09:48:42 +00:00
compare_fields_derive Clippy 1.67 (#3916) 2023-01-27 09:48:42 +00:00
deposit_contract Update discv5 (#3171) 2022-10-28 05:40:06 +00:00
directory Update to Rust 1.59 and 2021 edition (#3038) 2022-02-25 00:10:17 +00:00
eth2 Tweaks to reward APIs (#3957) 2023-02-10 06:19:42 +00:00
eth2_config Add Goerli --network flag as duplicate of Prater: Option A (#3346) 2022-07-20 23:16:56 +00:00
eth2_interop_keypairs Update and consolidate dependencies (#3136) 2022-04-04 00:26:16 +00:00
eth2_network_config Add more Gnosis bootnodes (#3855) 2023-01-09 05:12:31 +00:00
eth2_wallet_manager Replace OpenOptions::new with File::options to be readable (#3059) 2022-03-07 06:30:18 +00:00
filesystem Fix rust 1.65 lints (#3682) 2022-11-04 07:43:43 +00:00
lighthouse_metrics Support histogram buckets (#3391) 2022-09-13 01:57:44 +00:00
lighthouse_version Release v3.4.0 (#3862) 2023-01-11 03:27:08 +00:00
lockfile Replace OpenOptions::new with File::options to be readable (#3059) 2022-03-07 06:30:18 +00:00
logging Add log debounce to work processor (#3045) 2022-03-07 06:30:17 +00:00
lru_cache Enforce a timeout on peer disconnect (#3757) 2023-02-14 03:25:42 +00:00
malloc_utils Switch allocator to jemalloc (#3697) 2023-01-20 04:19:29 +00:00
monitoring_api Remove fallback support from eth1 service (#3594) 2022-10-04 08:33:39 +00:00
oneshot_broadcast Fix concurrency issue with oneshot_broadcast (#3596) 2022-09-21 10:52:14 +00:00
sensitive_url Fix lints for Rust 1.63 (#3459) 2022-08-12 00:56:39 +00:00
slot_clock Update and consolidate dependencies (#3136) 2022-04-04 00:26:16 +00:00
system_health Health Endpoints for UI (#3668) 2022-11-15 05:21:26 +00:00
target_check Update to Rust 1.59 and 2021 edition (#3038) 2022-02-25 00:10:17 +00:00
task_executor Enable proposer boost re-orging (#2860) 2022-12-13 09:57:26 +00:00
test_random_derive Update to Rust 1.59 and 2021 edition (#3038) 2022-02-25 00:10:17 +00:00
unused_port Engine API v1.0.0.alpha.6 + interop tests (#3024) 2022-02-17 21:47:06 +00:00
validator_dir Clippy lints for rust 1.66 (#3810) 2022-12-16 04:04:00 +00:00
warp_utils Implement feerecipient API for keymanager (#3213) 2022-07-06 03:51:08 +00:00
README.md Directory Restructure (#1163) 2020-05-18 21:24:23 +10:00

eth2

Common crates containing eth2-specific logic.