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eth/downloader: demote peers if they exceed the soft limits at 1 blocks already

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Péter Szilágyi 2015-06-03 15:43:12 +03:00
parent c9a546c310
commit 3ec159ab6b
1 changed files with 8 additions and 3 deletions
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11
eth/downloader/peer.go
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@ -93,11 +93,16 @@ func (p *peer) SetIdle() {
// Calculate the new download bandwidth allowance
prev := atomic.LoadInt32(&p.capacity)
next := int32(math.Max(1, math.Min(MaxBlockFetch, float64(prev)*scale)))
if scale < 1 {
glog.V(logger.Detail).Infof("%s: reducing block allowance from %d to %d", p.id, prev, next)
}
// Try to update the old value
if atomic.CompareAndSwapInt32(&p.capacity, prev, next) {
// If we're having problems at 1 capacity, try to find better peers
if next == 1 {
p.Demote()
}
if prev != next {
glog.V(logger.Detail).Infof("%s: changing block download capacity from %d to %d", p.id, prev, next)
}
break
}
}