Add isActiveSequencer to ExpressLaneTracker log messages #4131
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When running multiple sequencers in HA mode, all nodes run an ExpressLaneTracker that polls for auction resolution events. This means the "AuctionResolved" and "New express lane auction round" log messages appear on every sequencer node, making it difficult for operators to distinguish which node is active vs standby. Add isActiveSequencer field to these log messages so operators can identify whether the logging node is the active sequencer (sequencing transactions) or an inactive one (validating and forwarding, ready for failover). The active status is determined by checking if the sequencer's forwarder is nil - active sequencers don't have a forwarder, while inactive ones forward to the active sequencer.
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MishkaRogachev
approved these changes
Dec 12, 2025
| var isActiveFunc func() bool | ||
| if n.Sequencer != nil { | ||
| isActiveFunc = func() bool { | ||
| _, forwarder := n.Sequencer.GetPauseAndForwarder() |
Contributor
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Just to double-check, should the pause be handled here in the same way as in Sequencer.getForwarder?
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When running multiple sequencers in HA mode, all nodes run an ExpressLaneTracker that polls for auction resolution events. This means the "AuctionResolved" and "New express lane auction round" log messages appear on every sequencer node, making it difficult for operators to distinguish which node is active vs standby.
Add isActiveSequencer field to these log messages so operators can identify whether the logging node is the active sequencer (sequencing transactions) or an inactive one (validating and forwarding, ready for failover).
The active status is determined by checking if the sequencer's forwarder is nil - active sequencers don't have a forwarder, while inactive ones forward to the active sequencer.