blob: 0513dcff172b3a8bba00ff1f7a77d3f68cab93a9 (
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
|
{ config, pkgs, lib, ... }:
let cfg = config.services.victoriametrics; in
{
options.services.victoriametrics = with lib; {
enable = mkEnableOption "victoriametrics";
package = mkOption {
type = types.package;
default = pkgs.victoriametrics;
defaultText = literalExpression "pkgs.victoriametrics";
description = ''
The VictoriaMetrics distribution to use.
'';
};
listenAddress = mkOption {
default = ":8428";
type = types.str;
description = ''
The listen address for the http interface.
'';
};
retentionPeriod = mkOption {
type = types.int;
default = 1;
description = ''
Retention period in months.
'';
};
extraOptions = mkOption {
type = types.listOf types.str;
default = [];
description = ''
Extra options to pass to VictoriaMetrics. See the README: <link
xlink:href="https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/README.md" />
or <command>victoriametrics -help</command> for more
information.
'';
};
};
config = lib.mkIf cfg.enable {
systemd.services.victoriametrics = {
description = "VictoriaMetrics time series database";
after = [ "network.target" ];
startLimitBurst = 5;
serviceConfig = {
Restart = "on-failure";
RestartSec = 1;
StateDirectory = "victoriametrics";
DynamicUser = true;
ExecStart = ''
${cfg.package}/bin/victoria-metrics \
-storageDataPath=/var/lib/victoriametrics \
-httpListenAddr ${cfg.listenAddress} \
-retentionPeriod ${toString cfg.retentionPeriod} \
${lib.escapeShellArgs cfg.extraOptions}
'';
# victoriametrics 1.59 with ~7GB of data seems to eventually panic when merging files and then
# begins restart-looping forever. Set LimitNOFILE= to a large number to work around this issue.
#
# panic: FATAL: unrecoverable error when merging small parts in the partition "/var/lib/victoriametrics/data/small/2021_08":
# cannot open source part for merging: cannot open values file in stream mode:
# cannot open file "/var/lib/victoriametrics/data/small/2021_08/[...]/values.bin":
# open /var/lib/victoriametrics/data/small/2021_08/[...]/values.bin: too many open files
LimitNOFILE = 1048576;
};
wantedBy = [ "multi-user.target" ];
postStart =
let
bindAddr = (lib.optionalString (lib.hasPrefix ":" cfg.listenAddress) "127.0.0.1") + cfg.listenAddress;
in
lib.mkBefore ''
until ${lib.getBin pkgs.curl}/bin/curl -s -o /dev/null http://${bindAddr}/ping; do
sleep 1;
done
'';
};
};
}
|