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chore: tune default postgres settings for 2c4g
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12
.env.example
12
.env.example
@@ -62,12 +62,12 @@ ADMIN_USERNAME=admin123456
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# MAX = CPU 核数 × 10(AI 网关偏 IO 等待,可激进些;纯 OLTP 用 × 4)
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# 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)
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# 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
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# AETHER_GATEWAY_DATA_POSTGRES_MIN_CONNECTIONS=1
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# AETHER_GATEWAY_DATA_POSTGRES_MIN_CONNECTIONS=4
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# AETHER_GATEWAY_DATA_POSTGRES_MAX_CONNECTIONS=20
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# AETHER_GATEWAY_DATA_POSTGRES_STATEMENT_CACHE_CAPACITY=100
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# AETHER_GATEWAY_DATA_POSTGRES_ACQUIRE_TIMEOUT_MS=3000
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# 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)
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# PostgreSQL 性能调优(默认值适合 2核4GB 机器,按实际配置覆盖)
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# 参考:shared_buffers ≈ 可用内存 25%,effective_cache_size ≈ 可用内存 50-75%
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# 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)
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# | 系统内存 | shared_buffers | effective_cache_size | work_mem |
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@@ -76,7 +76,7 @@ ADMIN_USERNAME=admin123456
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# | 8GB | 2GB | 6GB | 16MB |
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# | 16GB | 4GB | 12GB | 32MB |
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# | 32GB+ | 8GB | 24GB | 32MB |
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# POSTGRES_SHARED_BUFFERS=256MB
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# POSTGRES_EFFECTIVE_CACHE_SIZE=768MB
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# POSTGRES_WORK_MEM=4MB
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# POSTGRES_MAINTENANCE_WORK_MEM=64MB
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# POSTGRES_SHARED_BUFFERS=1GB
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# POSTGRES_EFFECTIVE_CACHE_SIZE=3GB
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# POSTGRES_WORK_MEM=16MB
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# POSTGRES_MAINTENANCE_WORK_MEM=256MB
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