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cgroup_exporter
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Add swap metrics

This commit is contained in:
Trey Dockendorf 2020-02-12 12:49:06 -05:00
parent bb06e04d87
commit eb5a04e1be
2 changed files with 19 additions and 1 deletions
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14
cgroup_exporter.go
View File

@ -50,10 +50,12 @@ type CgroupMetric struct {
cpuSystem float64
cpuTotal float64
cpus int
memoryUsed float64
uid string
username string
memoryUsed float64
memoryTotal float64
swapUsed float64
swapTotal float64
}
type Exporter struct {
@ -64,6 +66,8 @@ type Exporter struct {
cpus *prometheus.Desc
memoryUsed *prometheus.Desc
memoryTotal *prometheus.Desc
swapUsed *prometheus.Desc
swapTotal *prometheus.Desc
userslice *prometheus.Desc
success *prometheus.Desc
}
@ -153,6 +157,10 @@ func NewExporter(paths []string) *Exporter {
"Memory used in bytes", []string{"cgroup"}, nil),
memoryTotal: prometheus.NewDesc(prometheus.BuildFQName(namespace, "memory", "total_bytes"),
"Memory total given to cgroup in bytes", []string{"cgroup"}, nil),
swapUsed: prometheus.NewDesc(prometheus.BuildFQName(namespace, "swap", "used_bytes"),
"Swap used in bytes", []string{"cgroup"}, nil),
swapTotal: prometheus.NewDesc(prometheus.BuildFQName(namespace, "swap", "total_bytes"),
"Swap total given to cgroup in bytes", []string{"cgroup"}, nil),
userslice: prometheus.NewDesc(prometheus.BuildFQName(namespace, "userslice", "info"),
"User slice information", []string{"cgroup", "username", "uid"}, nil),
success: prometheus.NewDesc(prometheus.BuildFQName(namespace, "exporter", "success"),
@ -196,6 +204,8 @@ func (e *Exporter) collect() ([]CgroupMetric, error) {
metric.cpuTotal = float64(stats.CPU.Usage.Total) / 1000000000.0
metric.memoryUsed = float64(stats.Memory.Usage.Usage)
metric.memoryTotal = float64(stats.Memory.Usage.Limit)
metric.swapUsed = float64(stats.Memory.Swap.Usage)
metric.swapTotal = float64(stats.Memory.Swap.Limit)
if cpus, err := getCPUs(name); err == nil {
metric.cpus = cpus
}
@ -243,6 +253,8 @@ func (e *Exporter) Collect(ch chan<- prometheus.Metric) {
ch <- prometheus.MustNewConstMetric(e.cpus, prometheus.GaugeValue, float64(m.cpus), m.name)
ch <- prometheus.MustNewConstMetric(e.memoryUsed, prometheus.GaugeValue, m.memoryUsed, m.name)
ch <- prometheus.MustNewConstMetric(e.memoryTotal, prometheus.GaugeValue, m.memoryTotal, m.name)
ch <- prometheus.MustNewConstMetric(e.swapUsed, prometheus.GaugeValue, m.swapUsed, m.name)
ch <- prometheus.MustNewConstMetric(e.swapTotal, prometheus.GaugeValue, m.swapTotal, m.name)
if m.username != "" {
ch <- prometheus.MustNewConstMetric(e.userslice, prometheus.GaugeValue, 1, m.name, m.username, m.uid)
}

6
cgroup_exporter_test.go
View File

@ -75,4 +75,10 @@ func TestCollectUserSlice(t *testing.T) {
if val := metrics[0].memoryTotal; val != 68719476736 {
t.Errorf("Unexpected value for memoryTotal, got %v", val)
}
if val := metrics[0].swapUsed; val != 8081408 {
t.Errorf("Unexpected value for swapUsed, got %v", val)
}
if val := metrics[0].swapTotal; val != 9223372036854771712 {
t.Errorf("Unexpected value for swapTotal, got %v", val)
}
}