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Patch gossipsub (#1490)

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## Issue Addressed

Some nodes not following head, high CPU usage and HTTP API delays

## Proposed Changes

Patches gossipsub. Gossipsub was using an `lru_time_cache` to check for duplicates. This contained an `O(N)` lookup for every gossipsub message to update the time cache. This was causing high cpu usage and blocking network threads. 

This PR introduces a custom cache without `O(N)` inserts. 

This also adds built in safety mechanisms to prevent gossipsub from excessively retrying connections upon failure. A maximum limit is set after which we disconnect from the node from too many failed substream connections.
This commit is contained in:
Age Manning
2020-08-08 08:09:04 +00:00
parent 08a31c5a1a
commit 04e4389efe
2 changed files with 26 additions and 27 deletions
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2
beacon_node/eth2_libp2p/Cargo.toml
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@@ -41,7 +41,7 @@ rand = "0.7.3"
[dependencies.libp2p]
#version = "0.23.0"
git = "https://github.com/sigp/rust-libp2p"
rev = "5139ec3ace4ad52506f217d790f0a9425274caef"
rev = "3096cb6b89b2883a79ce5ffcb03d41778a09b695"
default-features = false
features = ["websocket", "identify", "mplex", "yamux", "noise", "gossipsub", "dns", "tcp-tokio"]