Merge pull request #829 from halseth/peer-failed-channel-tracking

peer: track failed channels
This commit is contained in:
Olaoluwa Osuntokun 2018-03-13 12:55:14 -07:00 committed by GitHub
commit 0933f42674
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

34
peer.go

@ -161,6 +161,14 @@ type peer struct {
// peer during the connection handshake.
remoteGlobalFeatures *lnwire.FeatureVector
// failedChannels is a set that tracks channels we consider `failed`.
// This is a temporary measure until we have implemented real failure
// handling at the link level, to handle the case where we reconnect to
// a peer and try to re-sync a failed channel, triggering a disconnect
// loop.
// TODO(halseth): remove when link failure is properly handled.
failedChannels map[lnwire.ChannelID]struct{}
queueQuit chan struct{}
quit chan struct{}
wg sync.WaitGroup
@ -194,6 +202,7 @@ func newPeer(conn net.Conn, connReq *connmgr.ConnReq, server *server,
activeChanCloses: make(map[lnwire.ChannelID]*channelCloser),
localCloseChanReqs: make(chan *htlcswitch.ChanClose),
chanCloseMsgs: make(chan *closeMsg),
failedChannels: make(map[lnwire.ChannelID]struct{}),
queueQuit: make(chan struct{}),
quit: make(chan struct{}),
@ -308,11 +317,22 @@ func (p *peer) loadActiveChannels(chans []*channeldb.OpenChannel) error {
p.activeChannels[chanID] = lnChan
p.activeChanMtx.Unlock()
peerLog.Infof("NodeKey(%x) loading ChannelPoint(%v)", p.PubKey(), chanPoint)
peerLog.Infof("NodeKey(%x) loading ChannelPoint(%v)",
p.PubKey(), chanPoint)
// Skip adding any permanently irreconcilable channels to the
// htlcswitch.
if dbChan.IsBorked {
peerLog.Warnf("ChannelPoint(%v) is borked, won't "+
"start.", chanPoint)
continue
}
// Also skip adding any channel marked as `failed` for this
// session.
if _, ok := p.failedChannels[chanID]; ok {
peerLog.Warnf("ChannelPoint(%v) is failed, won't "+
"start.", chanPoint)
continue
}
@ -790,8 +810,13 @@ out:
// In the case of an all-zero channel ID we want to
// forward the error to all channels with this peer.
case msg.ChanID == lnwire.ConnectionWideID:
for _, chanStream := range chanMsgStreams {
for chanID, chanStream := range chanMsgStreams {
chanStream.AddMsg(nextMsg)
// Also marked this channel as failed,
// so we won't try to restart it on
// reconnect with this peer.
p.failedChannels[chanID] = struct{}{}
}
// If the channel ID for the error message corresponds
@ -805,6 +830,11 @@ out:
default:
isChanUpdate = true
targetChan = msg.ChanID
// Also marked this channel as failed, so we
// won't try to restart it on reconnect with
// this peer.
p.failedChannels[targetChan] = struct{}{}
}
// TODO(roasbeef): create ChanUpdater interface for the below