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Print an error if a collator connects to a node without real-overseer (#2563)

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* Print an error if a collator connects to a node without real-overseer

* Update node/service/src/lib.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
This commit is contained in:
Pierre Krieger
2021-03-05 12:41:35 +01:00
committed by GitHub
parent b604ecdce1
commit 3d54a759fe
1 changed files with 36 additions and 0 deletions
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polkadot/node/service/src/lib.rs
+36
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@@ -613,6 +613,20 @@ pub fn new_full<RuntimeApi, Executor>(
#[cfg(feature = "real-overseer")]
config.network.extra_sets.extend(polkadot_network_bridge::peer_sets_info());
// Add a dummy collation set with the intent of printing an error if one tries to connect a
// collator to a node that isn't compiled with `--features real-overseer`.
#[cfg(not(feature = "real-overseer"))]
config.network.extra_sets.push(sc_network::config::NonDefaultSetConfig {
notifications_protocol: "/polkadot/collation/1".into(),
max_notification_size: 16,
set_config: sc_network::config::SetConfig {
in_peers: 25,
out_peers: 0,
reserved_nodes: Vec::new(),
non_reserved_mode: sc_network::config::NonReservedPeerMode::Accept,
},
});
// TODO: At the moment, the collator protocol uses notifications protocols to download
// collations. Because of DoS-protection measures, notifications protocols have a very limited
// bandwidth capacity, resulting in the collation download taking a long time.
@@ -652,6 +666,28 @@ pub fn new_full<RuntimeApi, Executor>(
block_announce_validator_builder: None,
})?;
// See above. We have added a dummy collation set with the intent of printing an error if one
// tries to connect a collator to a node that isn't compiled with `--features real-overseer`.
#[cfg(not(feature = "real-overseer"))]
task_manager.spawn_handle().spawn("dummy-collation-handler", {
let mut network_events = network.event_stream("dummy-collation-handler");
async move {
use futures::prelude::*;
while let Some(ev) = network_events.next().await {
if let sc_network::Event::NotificationStreamOpened { protocol, .. } = ev {
if protocol == "/polkadot/collation/1" {
tracing::warn!(
"Incoming collator on a node with parachains disabled. This warning \
is harmless and is here to warn developers that they might have
accidentally compiled their node without the `real-overseer` feature
enabled."
);
}
}
}
}
});
if config.offchain_worker.enabled {
let _ = service::build_offchain_workers(
&config, backend.clone(), task_manager.spawn_handle(), client.clone(), network.clone(),