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Request backed candidates unbounded. (#5610)

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We are awaiting on the oneshot anyways, so we have back pressure. By
using the unbounded channel make log messages like the following less
likely (due to higher priority):

	2022-05-30 13:46:38
2022-05-30 11:46:38.565  WARN tokio-runtime-worker parachain::provisioner: failed to assemble or send inherent data err=CanceledBackedCandidates(Canceled)
This commit is contained in:
Robert Klotzner
2022-05-30 22:04:12 +02:00
committed by GitHub
parent 3ea40ba1f7
commit 72723c8a9f
1 changed files with 5 additions and 7 deletions
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polkadot/node/core/provisioner/src/lib.rs
+5 -7
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@@ -505,13 +505,11 @@ async fn select_candidates(
// now get the backed candidates corresponding to these candidate receipts // now get the backed candidates corresponding to these candidate receipts
let (tx, rx) = oneshot::channel(); let (tx, rx) = oneshot::channel();
sender sender.send_unbounded_message(CandidateBackingMessage::GetBackedCandidates(
.send_message(CandidateBackingMessage::GetBackedCandidates( relay_parent,
relay_parent, selected_candidates.clone(),
selected_candidates.clone(), tx,
tx, ));
))
.await;
let mut candidates = rx.await.map_err(|err| Error::CanceledBackedCandidates(err))?; let mut candidates = rx.await.map_err(|err| Error::CanceledBackedCandidates(err))?;
// `selected_candidates` is generated in ascending order by core index, and `GetBackedCandidates` // `selected_candidates` is generated in ascending order by core index, and `GetBackedCandidates`