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configuration.md

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Configuration reference

Key Type Default Environment Deprecated Source Description
autotuner.compression_disable_hysteresis_windows usize 2 ROCKSTREAM_AUTOTUNER_COMPRESSION_DISABLE_HYSTERESIS_WINDOWS false rockstream-types::config::AutotunerConfig Windows of high CPU before disabling direct compression
autotuner.compression_reenable_hysteresis_windows usize 4 ROCKSTREAM_AUTOTUNER_COMPRESSION_REENABLE_HYSTERESIS_WINDOWS false rockstream-types::config::AutotunerConfig Windows of low CPU before re-enabling direct compression
autotuner.default_parallelism usize 4 ROCKSTREAM_AUTOTUNER_DEFAULT_PARALLELISM false rockstream-types::config::AutotunerConfig Default operator execution parallelism
autotuner.direct_compression_cpu_budget_ms u64 5 ROCKSTREAM_AUTOTUNER_DIRECT_COMPRESSION_CPU_BUDGET_MS false rockstream-types::config::AutotunerConfig CPU time budget in milliseconds allocated for direct compression
autotuner.enabled bool true ROCKSTREAM_AUTOTUNER_ENABLED false rockstream-types::config::AutotunerConfig Enable dynamic pipeline autotuning
autotuner.hysteresis_scale_down_windows usize 12 ROCKSTREAM_AUTOTUNER_HYSTERESIS_SCALE_DOWN_WINDOWS false rockstream-types::config::AutotunerConfig Number of consecutive underloaded windows before scale-down
autotuner.hysteresis_scale_up_windows usize 3 ROCKSTREAM_AUTOTUNER_HYSTERESIS_SCALE_UP_WINDOWS false rockstream-types::config::AutotunerConfig Number of consecutive overloaded windows before scale-up
autotuner.max_parallelism usize 32 ROCKSTREAM_AUTOTUNER_MAX_PARALLELISM false rockstream-types::config::AutotunerConfig Maximum allowed operator parallelism
autotuner.min_parallelism usize 1 ROCKSTREAM_AUTOTUNER_MIN_PARALLELISM false rockstream-types::config::AutotunerConfig Minimum allowed operator parallelism
scatter_pruning.shard_bloom_budget_bytes usize 65536 ROCKSTREAM_SCATTER_PRUNING_SHARD_BLOOM_BUDGET_BYTES false rockstream-types::config::ScatterPruningConfig Memory budget in bytes allocated for shard bloom filters
scatter_pruning.shard_stats_max_age_checkpoints u64 5 ROCKSTREAM_SCATTER_PRUNING_SHARD_STATS_MAX_AGE_CHECKPOINTS false rockstream-types::config::ScatterPruningConfig Maximum checkpoint age for shard key statistics
server.listen_addr String 127.0.0.1:5432 ROCKSTREAM_LISTEN_ADDR false rockstream-runtime::server PostgreSQL wire protocol server listen address
server.max_connections usize 1024 ROCKSTREAM_MAX_CONNECTIONS false rockstream-runtime::server Maximum concurrent pgwire client connections
skew_split.enabled bool true ROCKSTREAM_SKEW_SPLIT_ENABLED false rockstream-types::config::SkewSplitConfig Enable automatic hot-key skew splitting
skew_split.hot_key_factor f64 20.0 ROCKSTREAM_SKEW_SPLIT_HOT_KEY_FACTOR false rockstream-types::config::SkewSplitConfig Skew threshold multiplier relative to mean key frequency
skew_split.max_skew_buckets u16 16 ROCKSTREAM_SKEW_SPLIT_MAX_SKEW_BUCKETS false rockstream-types::config::SkewSplitConfig Maximum number of sub-buckets per skewed key
storage.base_dir String ./data ROCKSTREAM_STORAGE_DIR false rockstream-storage Local filesystem storage directory root
storage.object_store_url Option None ROCKSTREAM_OBJECT_STORE_URL false rockstream-storage Object store bucket URL (e.g. s3://bucket or minio://bucket)