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risingwave_common/config/
mod.rs

1// Copyright 2025 RisingWave Labs
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15//! This pub module defines the structure of the configuration file `risingwave.toml`.
16//!
17//! [`RwConfig`] corresponds to the whole config file and each other config struct corresponds to a
18//! section in `risingwave.toml`.
19
20pub mod batch;
21pub use batch::BatchConfig;
22pub mod frontend;
23pub use frontend::FrontendConfig;
24pub mod hba;
25pub use hba::{AddressPattern, AuthMethod, ConnectionType, HbaConfig, HbaEntry};
26pub mod meta;
27pub use meta::{
28    CheckpointCompression, CompactionConfig, DefaultParallelism, MetaBackend, MetaConfig,
29    MetaStoreConfig,
30};
31pub mod streaming;
32pub use streaming::{AsyncStackTraceOption, StreamingConfig};
33pub mod server;
34pub use server::{HeapProfilingConfig, ServerConfig};
35
36pub use crate::session_config::SessionInitConfig;
37pub mod udf;
38pub use udf::UdfConfig;
39pub mod storage;
40pub use storage::{
41    CacheEvictionConfig, EvictionConfig, ObjectStoreConfig, StorageConfig, StorageMemoryConfig,
42    extract_storage_memory_config,
43};
44pub mod merge;
45pub mod mutate;
46pub mod none_as_empty_string;
47pub mod role;
48pub mod system;
49pub mod utils;
50use std::collections::BTreeMap;
51use std::fs;
52use std::num::NonZeroUsize;
53
54use anyhow::Context;
55use clap::ValueEnum;
56use educe::Educe;
57pub use merge::*;
58use risingwave_common_proc_macro::ConfigDoc;
59pub use risingwave_common_proc_macro::OverrideConfig;
60use risingwave_pb::meta::SystemParams;
61pub use role::*;
62use serde::{Deserialize, Serialize, Serializer};
63use serde_default::DefaultFromSerde;
64use serde_json::Value;
65pub use system::SystemConfig;
66pub use utils::*;
67
68use crate::for_all_params;
69
70/// Use the maximum value for HTTP/2 connection window size to avoid deadlock among multiplexed
71/// streams on the same connection.
72pub const MAX_CONNECTION_WINDOW_SIZE: u32 = (1 << 31) - 1;
73/// Use a large value for HTTP/2 stream window size to improve the performance of remote exchange,
74/// as we don't rely on this for back-pressure.
75pub const STREAM_WINDOW_SIZE: u32 = 32 * 1024 * 1024; // 32 MB
76
77/// [`RwConfig`] corresponds to the whole config file `risingwave.toml`. Each field corresponds to a
78/// section.
79#[derive(Educe, Clone, Serialize, Deserialize, Default, ConfigDoc)]
80#[educe(Debug)]
81pub struct RwConfig {
82    #[serde(default)]
83    #[config_doc(nested)]
84    pub server: ServerConfig,
85
86    #[serde(default)]
87    #[config_doc(nested)]
88    pub meta: MetaConfig,
89
90    #[serde(default)]
91    #[config_doc(nested)]
92    pub batch: BatchConfig,
93
94    #[serde(default)]
95    #[config_doc(nested)]
96    pub frontend: FrontendConfig,
97
98    #[serde(default)]
99    #[config_doc(nested)]
100    pub streaming: StreamingConfig,
101
102    #[serde(default)]
103    #[config_doc(nested)]
104    pub storage: StorageConfig,
105
106    #[serde(default)]
107    #[educe(Debug(ignore))]
108    #[config_doc(nested)]
109    pub system: SystemConfig,
110
111    #[serde(default)]
112    #[config_doc(nested)]
113    pub udf: UdfConfig,
114
115    #[serde(default)]
116    #[config_doc(nested)]
117    pub session_init: SessionInitConfig,
118
119    #[serde(flatten)]
120    #[config_doc(omitted)]
121    pub unrecognized: Unrecognized<Self>,
122}
123
124/// `[meta.developer.meta_compute_client_config]`
125/// `[meta.developer.meta_stream_client_config]`
126/// `[meta.developer.meta_frontend_client_config]`
127/// `[batch.developer.batch_compute_client_config]`
128/// `[batch.developer.batch_frontend_client_config]`
129/// `[streaming.developer.stream_compute_client_config]`
130#[serde_with::apply(Option => #[serde(with = "none_as_empty_string")])]
131#[derive(Clone, Debug, Serialize, Deserialize, DefaultFromSerde, ConfigDoc)]
132pub struct RpcClientConfig {
133    #[serde(default = "default::developer::rpc_client_connect_timeout_secs")]
134    pub connect_timeout_secs: u64,
135    /// Maximum concurrency when setting up an RPC client pool.
136    /// Set to 0 to keep the previous unlimited behavior.
137    #[serde(default = "default::developer::rpc_client_pool_setup_concurrency")]
138    pub pool_setup_concurrency: usize,
139}
140
141pub use risingwave_common_metrics::MetricLevel;
142
143impl RwConfig {
144    pub const fn default_connection_pool_size(&self) -> u16 {
145        self.server.connection_pool_size
146    }
147
148    /// Returns [`streaming::StreamingDeveloperConfig::exchange_connection_pool_size`] if set,
149    /// otherwise [`ServerConfig::connection_pool_size`].
150    pub fn streaming_exchange_connection_pool_size(&self) -> u16 {
151        self.streaming
152            .developer
153            .exchange_connection_pool_size
154            .unwrap_or_else(|| self.default_connection_pool_size())
155    }
156
157    /// Returns [`batch::BatchDeveloperConfig::exchange_connection_pool_size`] if set,
158    /// otherwise [`ServerConfig::connection_pool_size`].
159    pub fn batch_exchange_connection_pool_size(&self) -> u16 {
160        self.batch
161            .developer
162            .exchange_connection_pool_size
163            .unwrap_or_else(|| self.default_connection_pool_size())
164    }
165}
166
167pub mod default {
168
169    pub mod developer {
170        use crate::config::streaming::CacheRefillPolicy;
171
172        pub fn meta_cached_traces_num() -> u32 {
173            256
174        }
175
176        pub fn meta_cached_traces_memory_limit_bytes() -> usize {
177            1 << 27 // 128 MiB
178        }
179
180        pub fn batch_output_channel_size() -> usize {
181            64
182        }
183
184        pub fn batch_receiver_channel_size() -> usize {
185            1000
186        }
187
188        pub fn batch_root_stage_channel_size() -> usize {
189            100
190        }
191
192        pub fn batch_chunk_size() -> usize {
193            1024
194        }
195
196        pub fn batch_local_execute_buffer_size() -> usize {
197            64
198        }
199
200        /// Default to unset to be compatible with the behavior before this config is introduced,
201        /// that is, follow the value of `server.connection_pool_size`.
202        pub fn batch_exchange_connection_pool_size() -> Option<u16> {
203            None
204        }
205
206        pub fn stream_enable_executor_row_count() -> bool {
207            false
208        }
209
210        pub fn connector_message_buffer_size() -> usize {
211            16
212        }
213
214        pub fn unsafe_stream_extreme_cache_size() -> usize {
215            10
216        }
217
218        pub fn stream_topn_cache_min_capacity() -> usize {
219            10
220        }
221
222        pub fn stream_chunk_size() -> usize {
223            256
224        }
225
226        pub fn stream_exchange_initial_permits() -> usize {
227            2048
228        }
229
230        pub fn stream_exchange_batched_permits() -> usize {
231            256
232        }
233
234        pub fn stream_exchange_concurrent_barriers() -> usize {
235            1
236        }
237
238        pub fn stream_exchange_concurrent_dispatchers() -> usize {
239            0
240        }
241
242        pub fn stream_project_expr_concurrency() -> usize {
243            1
244        }
245
246        pub fn stream_project_expr_inflight_request_concurrency() -> usize {
247            0
248        }
249
250        pub fn stream_dml_channel_initial_permits() -> usize {
251            32768
252        }
253
254        pub fn stream_max_barrier_batch_size() -> u32 {
255            1024
256        }
257
258        pub fn stream_hash_agg_max_dirty_groups_heap_size() -> usize {
259            64 << 20 // 64MB
260        }
261
262        pub fn enable_trivial_move() -> bool {
263            true
264        }
265
266        pub fn enable_check_task_level_overlap() -> bool {
267            false
268        }
269
270        pub fn max_trivial_move_task_count_per_loop() -> usize {
271            256
272        }
273
274        pub fn max_get_task_probe_times() -> usize {
275            5
276        }
277
278        pub fn actor_cnt_per_worker_parallelism_soft_limit() -> usize {
279            100
280        }
281
282        pub fn actor_cnt_per_worker_parallelism_hard_limit() -> usize {
283            400
284        }
285
286        pub fn hummock_time_travel_sst_info_fetch_batch_size() -> usize {
287            10_000
288        }
289
290        pub fn hummock_time_travel_sst_info_insert_batch_size() -> usize {
291            100
292        }
293
294        pub fn time_travel_vacuum_interval_sec() -> u64 {
295            30
296        }
297
298        pub fn time_travel_vacuum_max_version_count() -> Option<u32> {
299            Some(10000)
300        }
301
302        pub fn hummock_time_travel_epoch_version_insert_batch_size() -> usize {
303            1000
304        }
305
306        pub fn hummock_time_travel_delta_fetch_batch_size() -> usize {
307            100
308        }
309
310        pub fn hummock_gc_history_insert_batch_size() -> usize {
311            1000
312        }
313
314        pub fn hummock_time_travel_filter_out_objects_batch_size() -> usize {
315            1000
316        }
317
318        pub fn hummock_time_travel_filter_out_objects_v1() -> bool {
319            false
320        }
321
322        pub fn hummock_time_travel_filter_out_objects_list_version_batch_size() -> usize {
323            10
324        }
325
326        pub fn hummock_time_travel_filter_out_objects_list_delta_batch_size() -> usize {
327            1000
328        }
329
330        pub fn memory_controller_threshold_aggressive() -> f64 {
331            0.9
332        }
333
334        pub fn memory_controller_threshold_graceful() -> f64 {
335            0.81
336        }
337
338        pub fn memory_controller_threshold_stable() -> f64 {
339            0.72
340        }
341
342        pub fn memory_controller_eviction_factor_aggressive() -> f64 {
343            2.0
344        }
345
346        pub fn memory_controller_eviction_factor_graceful() -> f64 {
347            1.5
348        }
349
350        pub fn memory_controller_eviction_factor_stable() -> f64 {
351            1.0
352        }
353
354        pub fn memory_controller_update_interval_ms() -> usize {
355            100
356        }
357
358        pub fn memory_controller_sequence_tls_step() -> u64 {
359            128
360        }
361
362        pub fn memory_controller_sequence_tls_lag() -> u64 {
363            32
364        }
365
366        pub fn stream_enable_arrangement_backfill() -> bool {
367            true
368        }
369
370        pub fn stream_enable_snapshot_backfill() -> bool {
371            true
372        }
373
374        pub fn enable_shared_source() -> bool {
375            true
376        }
377
378        pub fn stream_high_join_amplification_threshold() -> usize {
379            2048
380        }
381
382        pub fn stream_high_gap_fill_amplification_threshold() -> usize {
383            2048
384        }
385
386        /// Default to 1 to be compatible with the behavior before this config is introduced.
387        pub fn stream_exchange_connection_pool_size() -> Option<u16> {
388            Some(1)
389        }
390
391        pub fn enable_actor_tokio_metrics() -> bool {
392            true
393        }
394
395        pub fn stream_enable_auto_schema_change() -> bool {
396            true
397        }
398
399        pub fn switch_jdbc_pg_to_native() -> bool {
400            false
401        }
402
403        pub fn streaming_hash_join_entry_state_max_rows() -> usize {
404            // NOTE(kwannoel): This is just an arbitrary number.
405            30000
406        }
407
408        pub fn streaming_join_hash_map_evict_interval_rows() -> u32 {
409            16
410        }
411
412        pub fn streaming_now_progress_ratio() -> Option<f32> {
413            None
414        }
415
416        pub fn stream_snapshot_iter_rebuild_interval_secs() -> u64 {
417            10 * 60
418        }
419
420        pub fn enable_explain_analyze_stats() -> bool {
421            true
422        }
423
424        pub fn rpc_client_connect_timeout_secs() -> u64 {
425            5
426        }
427
428        pub fn rpc_client_pool_setup_concurrency() -> usize {
429            0
430        }
431
432        pub fn iceberg_list_interval_sec() -> u64 {
433            10
434        }
435
436        pub fn iceberg_fetch_batch_size() -> u64 {
437            1024
438        }
439
440        pub fn iceberg_sink_positional_delete_cache_size() -> usize {
441            1024
442        }
443
444        pub fn iceberg_sink_write_parquet_max_row_group_rows() -> usize {
445            100_000
446        }
447
448        pub fn materialize_force_overwrite_on_no_check() -> bool {
449            false
450        }
451
452        pub fn refresh_scheduler_interval_sec() -> u64 {
453            60
454        }
455
456        pub fn sync_log_store_pause_duration_ms() -> usize {
457            64
458        }
459
460        pub fn sync_log_store_buffer_size() -> usize {
461            2048
462        }
463
464        pub fn disable_sync_log_store_dispatcher() -> bool {
465            false
466        }
467
468        pub fn table_change_log_insert_batch_size() -> u64 {
469            1000
470        }
471
472        pub fn table_change_log_delete_batch_size() -> u64 {
473            1000
474        }
475
476        pub fn enable_state_table_vnode_stats_pruning() -> bool {
477            false
478        }
479
480        pub fn cache_refill_policy() -> CacheRefillPolicy {
481            CacheRefillPolicy::Enabled
482        }
483
484        pub fn enable_vnode_key_stats_for_materialize() -> bool {
485            false
486        }
487
488        pub fn max_concurrent_kv_log_store_historical_read() -> usize {
489            0
490        }
491    }
492}
493
494pub const MAX_META_CACHE_SHARD_BITS: usize = 4;
495pub const MIN_BUFFER_SIZE_PER_SHARD: usize = 256;
496pub const MAX_BLOCK_CACHE_SHARD_BITS: usize = 6; // It means that there will be 64 shards lru-cache to avoid lock conflict.
497
498#[cfg(test)]
499pub mod tests {
500    use expect_test::expect;
501    use risingwave_license::LicenseKey;
502
503    use super::*;
504
505    fn default_config_for_docs() -> RwConfig {
506        let mut config = RwConfig::default();
507        // Set `license_key` to empty in the docs to avoid any confusion.
508        config.system.license_key = Some(LicenseKey::empty());
509        // Keep generated docs and example config aligned with the production-safe default.
510        config.frontend.unsafe_enable_local_fs_connector = false;
511        config
512    }
513
514    /// This test ensures that `config/example.toml` is up-to-date with the default values specified
515    /// in this file. Developer should run `./risedev generate-example-config` to update it if this
516    /// test fails.
517    #[test]
518    fn test_example_up_to_date() {
519        const HEADER: &str = "# This file is generated by ./risedev generate-example-config
520# Check detailed comments in src/common/src/config.rs";
521
522        let actual = expect_test::expect_file!["../../../config/example.toml"];
523        let default = toml::to_string(&default_config_for_docs()).expect("failed to serialize");
524
525        let expected = format!("{HEADER}\n\n{default}");
526        actual.assert_eq(&expected);
527
528        let expected = rw_config_to_markdown();
529        let actual = expect_test::expect_file!["../../../config/docs.md"];
530        actual.assert_eq(&expected);
531    }
532
533    #[test]
534    fn test_session_init_entries_distinguishes_omitted_from_default() {
535        let config: RwConfig = toml::from_str(
536            r#"
537            [session_init]
538            streaming_parallelism = "bounded(8)"
539            streaming_parallelism_for_table = "default"
540            "#,
541        )
542        .unwrap();
543
544        // Omitted fields are `None`; an explicit `default` is `Some("default")`.
545        assert_eq!(
546            config.session_init.streaming_parallelism.as_deref(),
547            Some("bounded(8)")
548        );
549        assert_eq!(
550            config
551                .session_init
552                .streaming_parallelism_for_table
553                .as_deref(),
554            Some("default")
555        );
556        assert_eq!(config.session_init.streaming_parallelism_for_sink, None);
557
558        // Only explicitly-configured parameters are reported, by their session parameter name.
559        assert_eq!(
560            config.session_init.entries(),
561            vec![
562                ("streaming_parallelism", "bounded(8)"),
563                ("streaming_parallelism_for_table", "default"),
564            ]
565        );
566    }
567
568    #[test]
569    fn test_session_init_rejects_unrecognized_key() {
570        let err = toml::from_str::<RwConfig>(
571            r#"
572            [session_init]
573            streaming_parallelism = "bounded(8)"
574            not_a_real_param = "oops"
575            "#,
576        )
577        .unwrap_err();
578
579        assert!(err.to_string().contains("unknown field `not_a_real_param`"));
580    }
581
582    #[derive(Debug)]
583    struct ConfigItemDoc {
584        desc: String,
585        default: String,
586    }
587
588    fn rw_config_to_markdown() -> String {
589        let mut config_rustdocs = BTreeMap::<String, Vec<(String, String)>>::new();
590        RwConfig::config_docs("".to_owned(), &mut config_rustdocs);
591
592        // Section -> Config Name -> ConfigItemDoc
593        let mut configs: BTreeMap<String, BTreeMap<String, ConfigItemDoc>> = config_rustdocs
594            .into_iter()
595            .map(|(k, v)| {
596                let docs: BTreeMap<String, ConfigItemDoc> = v
597                    .into_iter()
598                    .map(|(name, desc)| {
599                        (
600                            name,
601                            ConfigItemDoc {
602                                desc,
603                                default: "".to_owned(), // unset
604                            },
605                        )
606                    })
607                    .collect();
608                (k, docs)
609            })
610            .collect();
611
612        let toml_doc: BTreeMap<String, toml::Value> =
613            toml::from_str(&toml::to_string(&default_config_for_docs()).unwrap()).unwrap();
614        toml_doc.into_iter().for_each(|(name, value)| {
615            set_default_values("".to_owned(), name, value, &mut configs);
616        });
617
618        let mut markdown = "# RisingWave System Configurations\n\n".to_owned()
619            + "This page is automatically generated by `./risedev generate-example-config`\n";
620        for (section, configs) in configs {
621            if configs.is_empty() {
622                continue;
623            }
624            markdown.push_str(&format!("\n## {}\n\n", section));
625            markdown.push_str("| Config | Description | Default |\n");
626            markdown.push_str("|--------|-------------|---------|\n");
627            for (config, doc) in configs {
628                markdown.push_str(&format!(
629                    "| {} | {} | {} |\n",
630                    config, doc.desc, doc.default
631                ));
632            }
633        }
634        markdown
635    }
636
637    fn set_default_values(
638        section: String,
639        name: String,
640        value: toml::Value,
641        configs: &mut BTreeMap<String, BTreeMap<String, ConfigItemDoc>>,
642    ) {
643        // Set the default value if it's a config name-value pair, otherwise it's a sub-section (Table) that should be recursively processed.
644        if let toml::Value::Table(table) = value {
645            let section_configs: BTreeMap<String, toml::Value> = table.into_iter().collect();
646            let sub_section = if section.is_empty() {
647                name
648            } else {
649                format!("{}.{}", section, name)
650            };
651            section_configs
652                .into_iter()
653                .for_each(|(k, v)| set_default_values(sub_section.clone(), k, v, configs))
654        } else if let Some(t) = configs.get_mut(&section)
655            && let Some(item_doc) = t.get_mut(&name)
656        {
657            item_doc.default = format!("{}", value);
658        }
659    }
660
661    #[test]
662    fn test_object_store_configs_backward_compatibility() {
663        // Define configs with the old name and make sure it still works
664        {
665            let config: RwConfig = toml::from_str(
666                r#"
667            [storage.object_store]
668            object_store_set_atomic_write_dir = true
669
670            [storage.object_store.s3]
671            object_store_keepalive_ms = 1
672            object_store_send_buffer_size = 1
673            object_store_recv_buffer_size = 1
674            object_store_nodelay = false
675
676            [storage.object_store.s3.developer]
677            object_store_retry_unknown_service_error = true
678            object_store_retryable_service_error_codes = ['dummy']
679
680
681            "#,
682            )
683            .unwrap();
684
685            assert!(config.storage.object_store.set_atomic_write_dir);
686            assert_eq!(config.storage.object_store.s3.keepalive_ms, Some(1));
687            assert_eq!(config.storage.object_store.s3.send_buffer_size, Some(1));
688            assert_eq!(config.storage.object_store.s3.recv_buffer_size, Some(1));
689            assert_eq!(config.storage.object_store.s3.nodelay, Some(false));
690            assert!(
691                config
692                    .storage
693                    .object_store
694                    .s3
695                    .developer
696                    .retry_unknown_service_error
697            );
698            assert_eq!(
699                config
700                    .storage
701                    .object_store
702                    .s3
703                    .developer
704                    .retryable_service_error_codes,
705                vec!["dummy".to_owned()]
706            );
707        }
708
709        // Define configs with the new name and make sure it works
710        {
711            let config: RwConfig = toml::from_str(
712                r#"
713            [storage.object_store]
714            set_atomic_write_dir = true
715
716            [storage.object_store.s3]
717            keepalive_ms = 1
718            send_buffer_size = 1
719            recv_buffer_size = 1
720            nodelay = false
721
722            [storage.object_store.s3.developer]
723            retry_unknown_service_error = true
724            retryable_service_error_codes = ['dummy']
725
726
727            "#,
728            )
729            .unwrap();
730
731            assert!(config.storage.object_store.set_atomic_write_dir);
732            assert_eq!(config.storage.object_store.s3.keepalive_ms, Some(1));
733            assert_eq!(config.storage.object_store.s3.send_buffer_size, Some(1));
734            assert_eq!(config.storage.object_store.s3.recv_buffer_size, Some(1));
735            assert_eq!(config.storage.object_store.s3.nodelay, Some(false));
736            assert!(
737                config
738                    .storage
739                    .object_store
740                    .s3
741                    .developer
742                    .retry_unknown_service_error
743            );
744            assert_eq!(
745                config
746                    .storage
747                    .object_store
748                    .s3
749                    .developer
750                    .retryable_service_error_codes,
751                vec!["dummy".to_owned()]
752            );
753        }
754    }
755
756    #[test]
757    fn test_meta_configs_backward_compatibility() {
758        // Test periodic_space_reclaim_compaction_interval_sec
759        {
760            let config: RwConfig = toml::from_str(
761                r#"
762            [meta]
763            periodic_split_compact_group_interval_sec = 1
764            table_write_throughput_threshold = 10
765            min_table_split_write_throughput = 5
766            "#,
767            )
768            .unwrap();
769
770            assert_eq!(
771                config
772                    .meta
773                    .periodic_scheduling_compaction_group_split_interval_sec,
774                1
775            );
776            assert_eq!(config.meta.table_high_write_throughput_threshold, 10);
777            assert_eq!(config.meta.table_low_write_throughput_threshold, 5);
778        }
779    }
780
781    #[test]
782    fn test_meta_max_normalize_splits_per_round_must_be_positive() {
783        let config = toml::from_str::<RwConfig>(
784            r#"
785            [meta]
786            max_normalize_splits_per_round = 0
787            "#,
788        )
789        .unwrap_err();
790
791        expect![[r#"
792            TOML parse error at line 3, column 46
793              |
794            3 |             max_normalize_splits_per_round = 0
795              |                                              ^
796            meta.max_normalize_splits_per_round must be greater than 0
797        "#]]
798        .assert_eq(&config.to_string());
799    }
800
801    // Previously, we have prefixes like `stream_` for all configs under `streaming.developer`.
802    // Later we removed the prefixes, but we still want to guarantee the backward compatibility.
803    #[test]
804    fn test_prefix_alias() {
805        let config: RwConfig = toml::from_str(
806            "
807            [streaming.developer]
808            stream_chunk_size = 114514
809
810            [streaming.developer.stream_compute_client_config]
811            connect_timeout_secs = 42
812            pool_setup_concurrency = 10
813            ",
814        )
815        .unwrap();
816
817        assert_eq!(config.streaming.developer.chunk_size, 114514);
818        assert_eq!(
819            config
820                .streaming
821                .developer
822                .compute_client_config
823                .connect_timeout_secs,
824            42
825        );
826        assert_eq!(
827            config
828                .streaming
829                .developer
830                .compute_client_config
831                .pool_setup_concurrency,
832            10
833        );
834    }
835
836    #[test]
837    fn test_prefix_alias_duplicate() {
838        let config = toml::from_str::<RwConfig>(
839            "
840            [streaming.developer]
841            stream_chunk_size = 114514
842            chunk_size = 1919810
843            ",
844        )
845        .unwrap_err();
846
847        expect![[r#"
848            TOML parse error at line 2, column 13
849              |
850            2 |             [streaming.developer]
851              |             ^^^^^^^^^^^^^^^^^^^^^
852            duplicate field `chunk_size`
853        "#]]
854        .assert_eq(&config.to_string());
855
856        let config = toml::from_str::<RwConfig>(
857            "
858            [streaming.developer.stream_compute_client_config]
859            connect_timeout_secs = 5
860
861            [streaming.developer.compute_client_config]
862            connect_timeout_secs = 10
863            ",
864        )
865        .unwrap_err();
866
867        expect![[r#"
868            TOML parse error at line 2, column 24
869              |
870            2 |             [streaming.developer.stream_compute_client_config]
871              |                        ^^^^^^^^^
872            duplicate field `compute_client_config`
873        "#]]
874        .assert_eq(&config.to_string());
875    }
876
877    #[test]
878    fn test_storage_max_prefetch_block_number_must_be_positive() {
879        let config = toml::from_str::<RwConfig>(
880            r#"
881            [storage]
882            max_prefetch_block_number = 0
883            "#,
884        )
885        .unwrap_err();
886
887        expect![[r#"
888            TOML parse error at line 3, column 41
889              |
890            3 |             max_prefetch_block_number = 0
891              |                                         ^
892            storage.max_prefetch_block_number must be greater than 0
893        "#]]
894        .assert_eq(&config.to_string());
895    }
896
897    #[test]
898    fn test_storage_iceberg_compaction_pull_interval_ms_must_be_positive() {
899        let config = toml::from_str::<RwConfig>(
900            r#"
901            [storage]
902            iceberg_compaction_pull_interval_ms = 0
903            "#,
904        )
905        .unwrap_err();
906
907        expect![[r#"
908            TOML parse error at line 3, column 51
909              |
910            3 |             iceberg_compaction_pull_interval_ms = 0
911              |                                                   ^
912            storage.iceberg_compaction_pull_interval_ms must be greater than 0
913        "#]]
914        .assert_eq(&config.to_string());
915    }
916}