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Offences reporting and slashing #3322
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…to retreat-slashing
…or slash calculations
Co-Authored-By: joe petrowski <25483142+joepetrowski@users.noreply.github.com>
Co-Authored-By: joe petrowski <25483142+joepetrowski@users.noreply.github.com>
lsaether
reviewed
Aug 14, 2019
Co-Authored-By: Logan Saether <x@logansaether.com>
rphmeier
reviewed
Aug 15, 2019
| // because: | ||
| // Y = X * (1 - prev) | ||
| // Z = Y * (1 - x) | ||
| // Z = X * (1 - new) |
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Our main concern was whether PerBill can handle it.
To keep the decimal representation from going out of control, we could always round the slash_fraction to the nearest 1000th or 10,000th.
We will then incur some rounding error but are at much lower risk of overflow.
* only slash in current era * prune journal for last era * comment own_slash * emit an event when old slashing events are discarded
tomusdrw
commented
Aug 16, 2019
# Conflicts: # node/cli/src/chain_spec.rs # node/runtime/src/lib.rs # srml/aura/Cargo.toml # srml/babe/Cargo.toml # srml/babe/src/lib.rs # srml/session/src/lib.rs
# Conflicts: # node/runtime/src/lib.rs # srml/babe/src/lib.rs
rphmeier
approved these changes
Aug 16, 2019
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The spec is available here.
This PR introduces infrastructure for tracking offences and enacting them, i.e. slashing. Actual reporting is implemented only for unresponsivness; detection, validation and filing the reports is out of scope for this PR and should be implemented in #3314. There are some differences from the spec, namely: