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op-node: catch up L2 sequencing based on time, not L1 origins #3818

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Merged
trianglesphere merged 1 commit into from
Nov 7, 2022
Merged

op-node: catch up L2 sequencing based on time, not L1 origins #3818

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5 changes: 3 additions & 2 deletions op-node/rollup/driver/state.go
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Original file line number Diff line number Diff line change
Expand Up @@ -279,8 +279,9 @@ func (s *Driver) eventLoop() {
// requesting a new block ASAP instead of waiting for the next tick.
// We don't request a block if the confirmation depth is not met.
l2Head := s.derivation.UnsafeL2Head()
if l1Head.Number > l2Head.L1Origin.Number+s.driverConfig.SequencerConfDepth {
s.log.Trace("Building another L2 block asap to catch up with L1 head", "l2_unsafe", l2Head, "l2_unsafe_l1_origin", l2Head.L1Origin, "l1_head", l1Head)
if wallClock := uint64(time.Now().Unix()); l2Head.Time+s.config.BlockTime <= wallClock {
s.log.Trace("Building another L2 block asap to catch up with wallclock",
"l2_unsafe", l2Head, "l2_unsafe_time", l2Head.Time, "wallclock", wallClock)
// But not too quickly to minimize busy-waiting for new blocks
time.AfterFunc(time.Millisecond*10, reqL2BlockCreation)
}
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