blob: ac3b228443341302e1a621cf5ed6e330428fddb4 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
{ config, pkgs, lib, ... }:
{
systemd.tmpfiles.rules = [ "d /mnt/postgres/data 0750 postgres postgres" ];
services.postgresql = {
enable = true;
package = pkgs.postgresql_16;
enableTCPIP = true;
authentication = pkgs.lib.mkOverride 10 ''
# TYPE, DATABASE, USER, ADDRESS, METHOD
local all all trust
host all all 127.0.0.1/32 trust
host all all ::1/128 trust
host discordbots discordbots 192.168.1.2/32 trust
host matrix-synapse-rory-gay matrix-synapse-rory-gay 192.168.1.5/32 trust
host all all 0.0.0.0/0 md5
'';
# initialScript = pkgs.writeText "backend-initScript" ''
# CREATE ROLE nixcloud WITH LOGIN PASSWORD 'nixcloud' CREATEDB;
# CREATE DATABASE nixcloud;
# GRANT ALL PRIVILEGES ON DATABASE nixcloud TO nixcloud;
# '';
dataDir = "/mnt/postgres/data";
settings = {
# https://pgconfigurator.cybertec.at/
max_connections = 2500;
superuser_reserved_connections = 3;
shared_buffers = "32565MB";
work_mem = "512MB";
maintenance_work_mem = "1024MB";
huge_pages = "try";
effective_cache_size = "60GB"; #was 22
effective_io_concurrency = "8";
random_page_cost = 4;
# can use this to view stats: SELECT query, total_time, calls, rows FROM pg_stat_statements ORDER BY total_time DESC LIMIT 10;
shared_preload_libraries = "pg_stat_statements";
track_io_timing = "on";
track_functions = "pl";
"pg_stat_statements.max" = "10000"; # additional
"pg_stat_statements.track" = "all"; # additional
wal_level = "replica";
max_wal_senders = 0;
synchronous_commit = "off"; #was on
checkpoint_timeout = "15min";
checkpoint_completion_target = "0.9";
max_wal_size = "1GB";
min_wal_size = "512MB";
wal_compression = "on";
wal_buffers = "-1";
wal_writer_delay = "200ms";
wal_writer_flush_after = "1MB";
#checkpoint_segments = "64"; # additional
default_statistics_target = "250"; # additional
bgwriter_delay = "200ms";
bgwriter_lru_maxpages = "100";
bgwriter_lru_multiplier = "2.0";
bgwriter_flush_after = "0";
max_worker_processes = "32"; #was 14
max_parallel_workers_per_gather = "16"; #was 7
max_parallel_maintenance_workers = "16"; #was 7
max_parallel_workers = "32"; #was 14
parallel_leader_participation = "on";
enable_partitionwise_join = "on";
enable_partitionwise_aggregate = "on";
jit = "on";
max_slot_wal_keep_size = "1GB";
track_wal_io_timing = "on";
maintenance_io_concurrency = "4";
wal_recycle = "on";
};
};
}
|
