Jordan Schalm

[Cadence 0.x] Add `ProtocolStateVersionUpgrade` service event

2

This PR adds a minimal version of a service event to upgrade the protocol state version (see also https://github.com/onflow/flow-go/pull/5428). There is an integration test validating the new service event is...

This PR adds a minimal version of a service event to upgrade the protocol state version (see also https://github.com/onflow/flow-go/pull/5428). This is a Cadence 1.0 compatible port of https://github.com/onflow/flow-core-contracts/pull/411. There is...

- Changed the script tag regex so that open and closing parens are also highlighted, they were treated as regular text before. - Added highlighting support for if/else statements that...

Require either a root snapshot file, or Dynamic Startup flags

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The current Dynamic Startup behaviour is based on precedence: - if the state is bootstrapped, we ignore the root snapshot file and Dynamic Startup flags - else if a root...

Use Dynamic Protocol State API to compute events / metrics

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- Replace direct inspection of service events at the `FollowerState` level with use of the Dynamic Protocol State API. - Simplifies `isFirstBlock` function This addresses the following item from https://github.com/onflow/flow-go/issues/5666:...

Remove duplicated top-level `EncodableSnapshot` fields

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This PR removes the `Head`, `LatestSeal`, and `LatestResult` fields from `EncodableSnapshot`, addressing this outstanding TODO from https://github.com/onflow/flow-go/issues/5666: > Remove additional redundant fields from EncodableSnapshot (in particular LatestSeal, Result, Head). See...

The [Epoch Lookup](https://github.com/onflow/flow-go/blob/7364a433caa73648f8409f5da6fa7963666a0b2f/module/epochs/epoch_lookup.go#L102-L112) acts as a cache supporting queries for the epoch counter corresponding to a given view. **Changes:** - Add `EpochExtended` event handler: - Set `epochRange.finalView` to final view...

## Context See [thread](https://dapperlabs.slack.com/archives/CUU2KQL4A/p1702664635465439?thread_ts=1702582540.156889&cid=CUU2KQL4A): > Sjon-Paul Brown 3 days ago @jordan, could you either recommend the changes for me to make in the Ansible automation or create a PR to...

Support Epoch Extensions in HotStuff Committee

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This PR updates the Consensus Committee to support epoch extensions. Addresses #5730. ### Changes - Modifies `protocol.Epoch` `FinalView` method to account for any extensions. - Modifies `committees.Consensus` to handle `EpochExtended`...

Unexpected Behaviour Log: AssignmentCollectorTree has found not processable finalized fork

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## Context This issue captures several unexplained reports of an error log of unexpected behaviour from the AssignmentCollectorTree in the consensus sealing logic. In 2 cases, the log happened during...