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Make sure validator discovery works with a delayed peer to validator mapping (#1886)

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* Make sure validator discovery works with a delayed peer to validator mapping

Currently the implementation checks on connect of a peer if this peer is
a validator by asking the authority discovery. It can now happen that
the authority discovery is not yet aware that a given peer is an
authority. This can for example happen on start up of the node.

This pr changes the behavior, to make it possible to later associate a
peer to a validator id. Instead of just storing the connected
validators, we now store all connected peers with a vector of associated
validator ids. When we get a request to connect to a given given set of
validators, we start by checking the connected peers. If we didn't find
a validator id in the connected peers, we ask the authority discovery
for the peerid of a given authority id. When the returned peerid is part
of our connected peers set, we cache and return the authority id.

* Update node/network/bridge/Cargo.toml

Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>

* Update node/network/bridge/src/validator_discovery.rs

Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>

* Update `Cargo.lock`

Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>
This commit is contained in:
Bastian Köcher
2020-10-29 17:43:34 +01:00
committed by GitHub
parent 0cddf51a9c
commit a4b92cd3b6
2 changed files with 121 additions and 58 deletions
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polkadot/node/network/bridge/src/lib.rs
+2 -2
View File
@@ -16,7 +16,7 @@
//! The Network Bridge Subsystem - protocol multiplexer for Polkadot.
#![deny(unused_crate_dependencies, unused_results)]
#![deny(unused_crate_dependencies)]
#![warn(missing_docs)]
@@ -703,7 +703,7 @@ where
PeerSet::Collation => &mut collation_peers,
};
validator_discovery.on_peer_disconnected(&peer, &mut authority_discovery_service).await;
validator_discovery.on_peer_disconnected(&peer);
if peer_map.remove(&peer).is_some() {
let res = match peer_set {