fix(spartan): fund sponsored FPC in block-capacity bench env - #24248
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PhilWindle merged 1 commit intoJun 23, 2026
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The block-capacity benchmark pays all fees via SponsoredFeePaymentMethod,
but block-capacity.env never set SPONSORED_FPC=true, so the network was
deployed without funding the sponsored FPC at genesis. Every benchmark tx
was rejected with "Insufficient fee payer balance (required=..., available=0)",
failing all 8 cases on the first send. Every other bench env (tps-scenario,
bench-10tps, prove-n-tps-{fake,real}, next-scenario) already sets this flag.
spalladino
approved these changes
Jun 23, 2026
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Problem
The nightly
block-capacity-benchmarkjob has been failing fast (~5 min) with every transaction rejected:All 8 benchmark cases fail on the first
send. The build succeeds and the network is reachable — this is purely a genesis-funding problem.Root cause
block_capacity.test.tspays all fees throughSponsoredFeePaymentMethod(account deploys, mints, transfers). The fee payer is therefore the sponsored FPC, not the worker wallets. Butspartan/environments/block-capacity.envnever setSPONSORED_FPC=true, so the network was deployed without funding the sponsored FPC at genesis — its fee-juice balance isavailable=0, so no tx can be paid for.Every other bench env already sets this flag (
tps-scenario,bench-10tps,prove-n-tps-fake,prove-n-tps-real,next-scenario);block-capacity.envwas the only one missing it.network-defaults.ymldocuments the flag as "Fund sponsored FPC with fee juice".Fix
Add
SPONSORED_FPC=truetoblock-capacity.env.Found while investigating the failures in nightly Spartan Benchmarks run #95.