[SPIKE][Consensus] ProposalBlock Bloat Reduction

[jessicadaugherty]

Objective

Tendermint stores invalid txs which can result in block bloat. Bloat can be reduced by blocking/removing invalid txs from chain but kept in memory.

Origin Document

Overview of Replay Events

Goal

• Reduce bloat block from invalid txs
• Prevent rewards being produced for invalid txs
• Store invalid txs in memory for identifying invalid tx behavioral patterns

Deliverable

• Remove/block invalid txs by pre-processing proposals from the proposer (remove = send to memory and take fee, block = txs without balance to cover fees [i.e. no tx is produced or stored])
• Store removed invalid claims in memory, not the block

Non-goals / Non-deliverables

• Blocklisting/otherwise penalizing invalid txs

General issue deliverables

• Update the appropriate CHANGELOG
• Update any relevant READMEs (local and/or global)
• Update any relevant global documentation & references
• If applicable, update the source code tree explanation
• If applicable, add or update a state, sequence or flowchart diagram using mermaid

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Creator: @jessicadaugherty

[jessicadaugherty]

This needs to be researched to determine feasibility and outline risks before being a dev candidate