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Merge pull request #1029 from TheBlueMatt/2021-07-log-channel-close

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Log when a channel is closed on startup due to stale ChannelManager
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Matt Corallo 2021-08-05 21:05:43 +00:00 • committed by GitHub
commit 853007800e
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1
lightning-background-processor/src/lib.rs
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@ -39,6 +39,7 @@ use std::ops::Deref;
/// then there is a risk of channels force-closing on startup when the manager realizes it's
/// outdated. However, as long as `ChannelMonitor` backups are sound, no funds besides those used
/// for unilateral chain closure fees are at risk.
#[must_use = "BackgroundProcessor will immediately stop on drop. It should be stored until shutdown."]
pub struct BackgroundProcessor {
stop_thread: Arc<AtomicBool>,
thread_handle: Option<JoinHandle<Result<(), std::io::Error>>>,

4
lightning/src/ln/channelmanager.rs
View file

@ -5000,6 +5000,10 @@ impl<'a, Signer: Sign, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
channel.get_cur_counterparty_commitment_transaction_number() > monitor.get_cur_counterparty_commitment_number() ||
channel.get_latest_monitor_update_id() < monitor.get_latest_update_id() {
// But if the channel is behind of the monitor, close the channel:
log_error!(args.logger, "A ChannelManager is stale compared to the current ChannelMonitor!");
log_error!(args.logger, " The channel will be force-closed and the latest commitment transaction from the ChannelMonitor broadcast.");
log_error!(args.logger, " The ChannelMonitor for channel {} is at update_id {} but the ChannelManager is at update_id {}.",
log_bytes!(channel.channel_id()), monitor.get_latest_update_id(), channel.get_latest_monitor_update_id());
let (_, mut new_failed_htlcs) = channel.force_shutdown(true);
failed_htlcs.append(&mut new_failed_htlcs);
monitor.broadcast_latest_holder_commitment_txn(&args.tx_broadcaster, &args.logger);