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Fix issues in the poll loop

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This commit is contained in:
Juan Font Alonso 2022-06-20 21:40:28 +02:00
parent 8e63b53b0c
commit 5e9004c407
1 changed files with 41 additions and 36 deletions
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77
poll.go
View file

@ -293,17 +293,17 @@ func (h *Headscale) PollNetMapStream(
machine,
)
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", machine.Hostname).
Msg("Waiting for data to stream...")
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", machine.Hostname).
Msgf("pollData is %#v, keepAliveChan is %#v, updateChan is %#v", pollDataChan, keepAliveChan, updateChan)
for {
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", machine.Hostname).
Msg("Waiting for data to stream...")
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", machine.Hostname).
Msgf("pollData is %#v, keepAliveChan is %#v, updateChan is %#v", pollDataChan, keepAliveChan, updateChan)
select {
case data := <-pollDataChan:
log.Trace().
@ -321,8 +321,9 @@ func (h *Headscale) PollNetMapStream(
Err(err).
Msg("Cannot write data")
break
return
}
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", machine.Hostname).
@ -343,7 +344,7 @@ func (h *Headscale) PollNetMapStream(
// client has been removed from database
// since the stream opened, terminate connection.
break
return
}
now := time.Now().UTC()
machine.LastSeen = &now
@ -360,16 +361,16 @@ func (h *Headscale) PollNetMapStream(
Str("channel", "pollData").
Err(err).
Msg("Cannot update machine LastSuccessfulUpdate")
} else {
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", machine.Hostname).
Str("channel", "pollData").
Int("bytes", len(data)).
Msg("Machine entry in database updated successfully after sending pollData")
return
}
break
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", machine.Hostname).
Str("channel", "pollData").
Int("bytes", len(data)).
Msg("Machine entry in database updated successfully after sending data")
case data := <-keepAliveChan:
log.Trace().
@ -387,8 +388,9 @@ func (h *Headscale) PollNetMapStream(
Err(err).
Msg("Cannot write keep alive message")
break
return
}
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", machine.Hostname).
@ -409,7 +411,7 @@ func (h *Headscale) PollNetMapStream(
// client has been removed from database
// since the stream opened, terminate connection.
break
return
}
now := time.Now().UTC()
machine.LastSeen = &now
@ -421,16 +423,16 @@ func (h *Headscale) PollNetMapStream(
Str("channel", "keepAlive").
Err(err).
Msg("Cannot update machine LastSeen")
} else {
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", machine.Hostname).
Str("channel", "keepAlive").
Int("bytes", len(data)).
Msg("Machine updated successfully after sending keep alive")
return
}
break
log.Trace().
Str("handler", "PollNetMapStream").
Str("machine", machine.Hostname).
Str("channel", "keepAlive").
Int("bytes", len(data)).
Msg("Machine updated successfully after sending keep alive")
case <-updateChan:
log.Trace().
@ -440,6 +442,7 @@ func (h *Headscale) PollNetMapStream(
Msg("Received a request for update")
updateRequestsReceivedOnChannel.WithLabelValues(machine.Namespace.Name, machine.Hostname).
Inc()
if h.isOutdated(machine) {
var lastUpdate time.Time
if machine.LastSuccessfulUpdate != nil {
@ -459,6 +462,8 @@ func (h *Headscale) PollNetMapStream(
Str("channel", "update").
Err(err).
Msg("Could not get the map update")
return
}
_, err = w.Write(data)
if err != nil {
@ -515,7 +520,10 @@ func (h *Headscale) PollNetMapStream(
Str("channel", "update").
Err(err).
Msg("Cannot update machine LastSuccessfulUpdate")
return
}
} else {
var lastUpdate time.Time
if machine.LastSuccessfulUpdate != nil {
@ -529,8 +537,6 @@ func (h *Headscale) PollNetMapStream(
Msgf("%s is up to date", machine.Hostname)
}
return
case <-ctx.Done():
log.Info().
Str("handler", "PollNetMapStream").
@ -550,7 +556,7 @@ func (h *Headscale) PollNetMapStream(
// client has been removed from database
// since the stream opened, terminate connection.
break
return
}
now := time.Now().UTC()
machine.LastSeen = &now
@ -564,11 +570,10 @@ func (h *Headscale) PollNetMapStream(
Msg("Cannot update machine LastSeen")
}
break
// The connection has been closed, so we can stop polling.
return
}
}
log.Info().Msgf("Closing poll loop to %s", machine.Hostname)
}
func (h *Headscale) scheduledPollWorker(