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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
// Copyright 2019 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build !nobtrfs
// +build !nobtrfs
package collector
import (
"strings"
"testing"
"github.com/prometheus/procfs/btrfs"
)
var expectedBtrfsMetrics = [][]btrfsMetric{
{
{name: "info", value: 1, extraLabel: []string{"label"}, extraLabelValue: []string{"fixture"}},
{name: "global_rsv_size_bytes", value: 1.6777216e+07},
{name: "commits_total", value: 258051, metricType: 1},
{name: "last_commit_seconds", value: 1.0},
{name: "max_commit_seconds", value: 51.462},
{name: "commit_seconds_total", value: 47836.090, metricType: 1},
{name: "reserved_bytes", value: 0, extraLabel: []string{"block_group_type"}, extraLabelValue: []string{"data"}},
{name: "used_bytes", value: 8.08189952e+08, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"data", "raid0"}},
{name: "size_bytes", value: 2.147483648e+09, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"data", "raid0"}},
{name: "allocation_ratio", value: 1, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"data", "raid0"}},
{name: "reserved_bytes", value: 0, extraLabel: []string{"block_group_type"}, extraLabelValue: []string{"metadata"}},
{name: "used_bytes", value: 933888, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"metadata", "raid1"}},
{name: "size_bytes", value: 1.073741824e+09, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"metadata", "raid1"}},
{name: "allocation_ratio", value: 2, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"metadata", "raid1"}},
{name: "reserved_bytes", value: 0, extraLabel: []string{"block_group_type"}, extraLabelValue: []string{"system"}},
{name: "used_bytes", value: 16384, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"system", "raid1"}},
{name: "size_bytes", value: 8.388608e+06, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"system", "raid1"}},
{name: "allocation_ratio", value: 2, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"system", "raid1"}},
{name: "device_size_bytes", value: 1.073741824e+10, extraLabel: []string{"device"}, extraLabelValue: []string{"loop25"}},
{name: "device_size_bytes", value: 1.073741824e+10, extraLabel: []string{"device"}, extraLabelValue: []string{"loop26"}},
},
{
{name: "info", value: 1, extraLabel: []string{"label"}, extraLabelValue: []string{""}},
{name: "global_rsv_size_bytes", value: 1.6777216e+07},
{name: "commits_total", value: 0, metricType: 1},
{name: "last_commit_seconds", value: 0},
{name: "max_commit_seconds", value: 0},
{name: "commit_seconds_total", value: 0, metricType: 1},
{name: "reserved_bytes", value: 0, extraLabel: []string{"block_group_type"}, extraLabelValue: []string{"data"}},
{name: "used_bytes", value: 0, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"data", "raid5"}},
{name: "size_bytes", value: 6.44087808e+08, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"data", "raid5"}},
{name: "allocation_ratio", value: 1.3333333333333333, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"data", "raid5"}},
{name: "reserved_bytes", value: 0, extraLabel: []string{"block_group_type"}, extraLabelValue: []string{"metadata"}},
{name: "used_bytes", value: 114688, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"metadata", "raid6"}},
{name: "size_bytes", value: 4.29391872e+08, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"metadata", "raid6"}},
{name: "allocation_ratio", value: 2, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"metadata", "raid6"}},
{name: "reserved_bytes", value: 0, extraLabel: []string{"block_group_type"}, extraLabelValue: []string{"system"}},
{name: "used_bytes", value: 16384, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"system", "raid6"}},
{name: "size_bytes", value: 1.6777216e+07, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"system", "raid6"}},
{name: "allocation_ratio", value: 2, extraLabel: []string{"block_group_type", "mode"}, extraLabelValue: []string{"system", "raid6"}},
{name: "device_size_bytes", value: 1.073741824e+10, extraLabel: []string{"device"}, extraLabelValue: []string{"loop22"}},
{name: "device_size_bytes", value: 1.073741824e+10, extraLabel: []string{"device"}, extraLabelValue: []string{"loop23"}},
{name: "device_size_bytes", value: 1.073741824e+10, extraLabel: []string{"device"}, extraLabelValue: []string{"loop24"}},
{name: "device_size_bytes", value: 1.073741824e+10, extraLabel: []string{"device"}, extraLabelValue: []string{"loop25"}},
},
}
func checkMetric(exp, got *btrfsMetric) bool {
if exp.name != got.name ||
exp.value != got.value ||
len(exp.extraLabel) != len(got.extraLabel) ||
len(exp.extraLabelValue) != len(got.extraLabelValue) {
return false
}
for i := range exp.extraLabel {
if exp.extraLabel[i] != got.extraLabel[i] {
return false
}
// Devices (loopXX) can appear in random order, so just check the first 4 characters.
if strings.HasPrefix(got.extraLabelValue[i], "loop") &&
exp.extraLabelValue[i][:4] == got.extraLabelValue[i][:4] {
continue
}
if exp.extraLabelValue[i] != got.extraLabelValue[i] {
return false
}
}
return true
}
func TestBtrfs(t *testing.T) {
fs, err := btrfs.NewFS("fixtures/sys")
if err != nil {
t.Fatal(err)
}
collector := &btrfsCollector{fs: fs}
stats, err := collector.fs.Stats()
if err != nil {
t.Fatalf("Failed to retrieve Btrfs stats: %v", err)
}
if len(stats) != len(expectedBtrfsMetrics) {
t.Fatalf("Unexpected number of Btrfs stats: expected %v, got %v", len(expectedBtrfsMetrics), len(stats))
}
for i, s := range stats {
metrics := collector.getMetrics(s, nil)
if len(metrics) != len(expectedBtrfsMetrics[i]) {
t.Fatalf("Unexpected number of Btrfs metrics: expected %v, got %v", len(expectedBtrfsMetrics[i]), len(metrics))
}
for j, m := range metrics {
exp := expectedBtrfsMetrics[i][j]
if !checkMetric(&exp, &m) {
t.Errorf("Incorrect btrfs metric: expected %#v, got: %#v", exp, m)
}
}
}
}
|
