feat: wire BUGGIFY_CONFIG into all DST subsystems for GEPA optimizer#16
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feat: wire BUGGIFY_CONFIG into all DST subsystems for GEPA optimizer#16
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The DST optimizer previously only exercised process.crash (1 of 32 fault knobs) because each DST subsystem had its own isolated config. This wires BUGGIFY_CONFIG env var into all 4 subsystems so the GA can tune all 32 parameters with meaningful gradient signal. Rust changes: - SimulatedStoreConfig::from_env_or_default() reads object_store.* keys (8 params) - SimulatedWalStoreConfig::from_env_or_default() reads disk.* keys (5 params) - CRDTDSTConfig::from_env_or_default(seed) reads replication.* keys (2 params) - FaultConfig::from_env_or_default() + parse_config_string() for env var parsing - test_env_config_streaming/wal/crdt emit GEPA_* structured output Python changes: - CargoDstEvaluator runs all 4 test targets and aggregates fitness - Per-subsystem result parsing (StreamingResult, WalResult, CrdtResult) - Equal-weight fitness: 0.25 * crash + 0.25 * streaming + 0.25 * wal + 0.25 * crdt Verified with global_multiplier=2.0: - Streaming: PUT failures 2→18, GET failures 6→20 - WAL: write failures 2→79, sync failures 0→20, disk full 0→18 - CRDT: message drops 67→914 - All invariants hold (0 violations across all subsystems) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
BUGGIFY_CONFIGenv var into all 4 DST subsystems so the GEPA optimizer can tune all 32 fault parameters with meaningful gradient signalprocess.crash(1/32 knobs) had any effect on optimizer fitness — now all object store, disk, and replication fault knobs are exercisedChanges
Rust — 3 new
from_env_or_default()methodsSimulatedStoreConfigobject_store.*SimulatedWalStoreConfigdisk.*CRDTDSTConfigreplication.*Rust — 3 new GEPA optimizer test entry points
streaming_dst_testtest_env_config_streamingGEPA_STREAMING_*wal_dst_testtest_env_config_walGEPA_WAL_*crdt_dst_testtest_env_config_crdtGEPA_CRDT_*Python — multi-target
CargoDstEvaluatorRuns all 4 targets, aggregates fitness as equal-weight subscores.
Verification
With
global_multiplier=2.0:All 40 existing DST tests pass with zero regressions.
Test plan
cargo test --release --test streaming_dst_test(12 pass)cargo test --release --test wal_dst_test(6 pass)cargo test --release --test crdt_dst_test(16 pass)cargo test --release --test dst_batch_verification(6 pass)cargo clippy --release -p redis-sim -- -D warnings(0 warnings)BUGGIFY_CONFIGenv var across all 3 new tests🤖 Generated with Claude Code