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…different from the one returned in the preceding prepareProposal (#1033) If a proposer fails after calling prepareProposal and before calling processProposal, then the following may happen upon restarting: - if failed before signing another message, then will invoke prepareProposal again, sign a new block, probably empty, and propose it; - if failed after signing a proposal but before writing the proposal message into the WAL, then will invoke prepareProposal and produce a new, probably empty block, [fail to sign it](https://github.com/cometbft/cometbft/blob/2789a59a9cc61c6ea56a6b266eeadf0f26ca2456/consensus/state.go#L1221), and not invoke processProposal; prevote timeouts will ensure the CometBFT is not stuck; - if failed after writing the proposal message to the WAL, then will invoke prepareProposal, produce a new, probably empty block, fail to sign it, and invoke processProposal with the block signed before crashing. --- #### PR checklist - [ ] Tests written/updated - [ ] Changelog entry added in `.changelog` (we use [unclog](https://github.com/informalsystems/unclog) to manage our changelog) - [x] Updated relevant documentation (`docs/` or `spec/`) and code comments (cherry picked from commit b23ef56)
lasarojc
approved these changes
Jun 29, 2023
3 tasks
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