84 lines
2.6 KiB
Nix
Executable file
84 lines
2.6 KiB
Nix
Executable file
{ config, pkgs, lib, ... }:
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{
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systemd.tmpfiles.rules = [ "d /mnt/postgres/data 0750 postgres postgres" ];
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services.postgresql = {
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enable = true;
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package = pkgs.postgresql_16;
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enableTCPIP = true;
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authentication = pkgs.lib.mkOverride 10 ''
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# TYPE, DATABASE, USER, ADDRESS, METHOD
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local all all trust
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host all all 127.0.0.1/32 trust
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host all all ::1/128 trust
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host matrix-synapse matrix-synapse 127.0.0.1/32 trust
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host all all 0.0.0.0/0 md5
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'';
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# initialScript = pkgs.writeText "backend-initScript" ''
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# CREATE ROLE nixcloud WITH LOGIN PASSWORD 'nixcloud' CREATEDB;
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# CREATE DATABASE nixcloud;
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# GRANT ALL PRIVILEGES ON DATABASE nixcloud TO nixcloud;
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# '';
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dataDir = "/mnt/postgres/data";
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settings = {
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# https://pgconfigurator.cybertec.at/
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max_connections = 250;
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superuser_reserved_connections = 3;
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# shared_buffers = "32565MB";
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# work_mem = "512MB";
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# maintenance_work_mem = "1024MB";
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# huge_pages = "try";
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# effective_cache_size = "60GB"; #was 22
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# effective_io_concurrency = "8";
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# random_page_cost = 4;
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# can use this to view stats: SELECT query, total_time, calls, rows FROM pg_stat_statements ORDER BY total_time DESC LIMIT 10;
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# shared_preload_libraries = "pg_stat_statements";
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# track_io_timing = "on";
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# track_functions = "pl";
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# "pg_stat_statements.max" = "10000"; # additional
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# "pg_stat_statements.track" = "all"; # additional
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# wal_level = "replica";
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# max_wal_senders = 0;
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# synchronous_commit = "off"; #was on
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# checkpoint_timeout = "15min";
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# checkpoint_completion_target = "0.9";
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# max_wal_size = "1GB";
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# min_wal_size = "512MB";
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#
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# wal_compression = "on";
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# wal_buffers = "-1";
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# wal_writer_delay = "200ms";
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# wal_writer_flush_after = "1MB";
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# #checkpoint_segments = "64"; # additional
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# default_statistics_target = "250"; # additional
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# bgwriter_delay = "200ms";
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# bgwriter_lru_maxpages = "100";
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# bgwriter_lru_multiplier = "2.0";
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# bgwriter_flush_after = "0";
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# max_worker_processes = "32"; #was 14
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# max_parallel_workers_per_gather = "16"; #was 7
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# max_parallel_maintenance_workers = "16"; #was 7
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# max_parallel_workers = "32"; #was 14
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# parallel_leader_participation = "on";
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# enable_partitionwise_join = "on";
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# enable_partitionwise_aggregate = "on";
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# jit = "on";
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# max_slot_wal_keep_size = "1GB";
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# track_wal_io_timing = "on";
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# maintenance_io_concurrency = "4";
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# wal_recycle = "on";
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};
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};
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}
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