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Refactor re-execution #658

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janezpodhostnik
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Description

I split up the function a bit, to hopefully make it a bit clearer.
I also noticed that there was a bug where if events.Empty() then the batch containing the new cadence height never got committed. This should be fixed.


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@m-Peter m-Peter left a comment

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Nice!

}

// emit block event and logs, only after we successfully commit the data
e.blocksPublisher.Publish(events.Block())
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Who depends on this publisher? They need to be aware if a crash happens before this call and after the commit, then the subscribe will miss the data.

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This only notifies the streaming api, that a new block is available.

If a crash happens after commit and before this (no errrors are expected but there could be a panic or outage), the clients on the streaming api will be disconnected, and they will need to handle getting missing blocks and re-subscribing once the GW is back up. This should be already standard procedure if a disconnect happens.

@janezpodhostnik janezpodhostnik merged commit 79c3012 into feature/local-tx-reexecution Nov 20, 2024
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@m-Peter m-Peter deleted the janez/refactor-re-execution branch January 14, 2025 08:40
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4 participants