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chore: tune default postgres settings for 2c4g

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fawney19
2026-05-21 01:36:05 +08:00
parent e7f8b259ac
commit b84e4a96e2
4 changed files with 13 additions and 13 deletions
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12
.env.example
View File

@@ -62,12 +62,12 @@ ADMIN_USERNAME=admin123456
# MAX = CPU 核数 × 10（AI 网关偏 IO 等待，可激进些；纯 OLTP 用 × 4） # MAX = CPU 核数 × 10（AI 网关偏 IO 等待，可激进些；纯 OLTP 用 × 4）
# MIN = MAX × 0.2（保留常驻连接应对突发流量，避免冷启动握手开销） # MIN = MAX × 0.2（保留常驻连接应对突发流量，避免冷启动握手开销）
# 多实例部署时请按 实例数 × MAX 控制总和，PG 端 max_connections 至少为该总和 + 20 余量 # 多实例部署时请按 实例数 × MAX 控制总和，PG 端 max_connections 至少为该总和 + 20 余量
# AETHER_GATEWAY_DATA_POSTGRES_MIN_CONNECTIONS=1 # AETHER_GATEWAY_DATA_POSTGRES_MIN_CONNECTIONS=4
# AETHER_GATEWAY_DATA_POSTGRES_MAX_CONNECTIONS=20 # AETHER_GATEWAY_DATA_POSTGRES_MAX_CONNECTIONS=20
# AETHER_GATEWAY_DATA_POSTGRES_STATEMENT_CACHE_CAPACITY=100 # AETHER_GATEWAY_DATA_POSTGRES_STATEMENT_CACHE_CAPACITY=100
# AETHER_GATEWAY_DATA_POSTGRES_ACQUIRE_TIMEOUT_MS=3000 # AETHER_GATEWAY_DATA_POSTGRES_ACQUIRE_TIMEOUT_MS=3000
# PostgreSQL 性能调优（默认值适合 2核2GB 的最小机器，按实际配置覆盖） # PostgreSQL 性能调优（默认值适合 2核4GB 机器，按实际配置覆盖）
# 参考：shared_buffers ≈ 可用内存 25%，effective_cache_size ≈ 可用内存 50-75% # 参考：shared_buffers ≈ 可用内存 25%，effective_cache_size ≈ 可用内存 50-75%
# work_mem 是每个连接每个排序操作的内存，不要设太大（并发数 × work_mem 是实际占用） # work_mem 是每个连接每个排序操作的内存，不要设太大（并发数 × work_mem 是实际占用）
# | 系统内存 | shared_buffers | effective_cache_size | work_mem | # | 系统内存 | shared_buffers | effective_cache_size | work_mem |
@@ -76,7 +76,7 @@ ADMIN_USERNAME=admin123456
# | 8GB | 2GB | 6GB | 16MB | # | 8GB | 2GB | 6GB | 16MB |
# | 16GB | 4GB | 12GB | 32MB | # | 16GB | 4GB | 12GB | 32MB |
# | 32GB+ | 8GB | 24GB | 32MB | # | 32GB+ | 8GB | 24GB | 32MB |
# POSTGRES_SHARED_BUFFERS=256MB # POSTGRES_SHARED_BUFFERS=1GB
# POSTGRES_EFFECTIVE_CACHE_SIZE=768MB # POSTGRES_EFFECTIVE_CACHE_SIZE=3GB
# POSTGRES_WORK_MEM=4MB # POSTGRES_WORK_MEM=16MB
# POSTGRES_MAINTENANCE_WORK_MEM=64MB # POSTGRES_MAINTENANCE_WORK_MEM=256MB

4
apps/aether-gateway/src/main.rs
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@@ -254,7 +254,7 @@ struct GatewayDataArgs {
#[arg( #[arg(
long, long,
env = "AETHER_GATEWAY_DATA_POSTGRES_MIN_CONNECTIONS", env = "AETHER_GATEWAY_DATA_POSTGRES_MIN_CONNECTIONS",
default_value_t = 1 default_value_t = 4
)] )]
postgres_min_connections: u32, postgres_min_connections: u32,
@@ -1670,7 +1670,7 @@ mod tests {
encryption_key: None, encryption_key: None,
redis_url: None, redis_url: None,
redis_key_prefix: None, redis_key_prefix: None,
postgres_min_connections: 1, postgres_min_connections: 4,
postgres_max_connections: 20, postgres_max_connections: 20,
postgres_acquire_timeout_ms: 10_000, postgres_acquire_timeout_ms: 10_000,
postgres_idle_timeout_ms: 30_000, postgres_idle_timeout_ms: 30_000,

2
crates/aether-data/src/driver/postgres/pool.rs
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@@ -20,7 +20,7 @@ impl Default for PostgresPoolConfig {
fn default() -> Self { fn default() -> Self {
Self { Self {
database_url: String::new(), database_url: String::new(),
min_connections: 1, min_connections: 4,
max_connections: 20, max_connections: 20,
acquire_timeout_ms: 10_000, acquire_timeout_ms: 10_000,
idle_timeout_ms: 30_000, idle_timeout_ms: 30_000,

8
docker-compose.yml
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@@ -22,10 +22,10 @@ services:
-c shared_preload_libraries=pg_stat_statements -c shared_preload_libraries=pg_stat_statements
-c pg_stat_statements.track=all -c pg_stat_statements.track=all
-c pg_stat_statements.max=10000 -c pg_stat_statements.max=10000
-c shared_buffers=${POSTGRES_SHARED_BUFFERS:-256MB} -c shared_buffers=${POSTGRES_SHARED_BUFFERS:-1GB}
-c effective_cache_size=${POSTGRES_EFFECTIVE_CACHE_SIZE:-768MB} -c effective_cache_size=${POSTGRES_EFFECTIVE_CACHE_SIZE:-3GB}
-c work_mem=${POSTGRES_WORK_MEM:-4MB} -c work_mem=${POSTGRES_WORK_MEM:-16MB}
-c maintenance_work_mem=${POSTGRES_MAINTENANCE_WORK_MEM:-64MB} -c maintenance_work_mem=${POSTGRES_MAINTENANCE_WORK_MEM:-256MB}
healthcheck: healthcheck:
test: [ "CMD-SHELL", "pg_isready -U postgres" ] test: [ "CMD-SHELL", "pg_isready -U postgres" ]
interval: 5s interval: 5s