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spv: Accept cfilters from more peers. #2445

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Nov 4, 2024
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6 changes: 4 additions & 2 deletions spv/backend.go
Original file line number Diff line number Diff line change
Expand Up @@ -52,8 +52,10 @@ func pickForGetCfilters(lastHeaderHeight int32) func(rp *p2p.RemotePeer) bool {
// blocks are generated while performing the sync, therefore
// the initial advertised peer height would be lower than the
// last header height. Therefore, accept peers that are
// close, but not quite at the tip.
return rp.InitialHeight() >= lastHeaderHeight-6
// close, but not quite at the tip. It's possible that sync
// until now took longer than six blocks. In that case get
// cfilters from a peer that gave us headers.
return rp.InitialHeight() >= lastHeaderHeight-6 || rp.LastHeight() >= lastHeaderHeight
}
}

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