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memory: fix panics if metrics does not exists (#1960)

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Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>
This commit is contained in:
Jan-Otto Kröpke
2025-04-04 23:21:26 +02:00
committed by GitHub
parent 88c929ac6f
commit ecc805f0fa
39 changed files with 565 additions and 364 deletions
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26
internal/collector/tcp/tcp.go
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@@ -118,18 +118,6 @@ func (c *Collector) Close() error {
}
func (c *Collector) Build(_ *slog.Logger, _ *mi.Session) error {
var err error
c.perfDataCollector4, err = pdh.NewCollector[perfDataCounterValues](pdh.CounterTypeRaw, "TCPv4", nil)
if err != nil {
return fmt.Errorf("failed to create TCPv4 collector: %w", err)
}
c.perfDataCollector6, err = pdh.NewCollector[perfDataCounterValues](pdh.CounterTypeRaw, "TCPv6", nil)
if err != nil {
return fmt.Errorf("failed to create TCPv6 collector: %w", err)
}
c.connectionFailures = prometheus.NewDesc(
prometheus.BuildFQName(types.Namespace, Name, "connection_failures_total"),
"(TCP.ConnectionFailures)",
@@ -190,13 +178,25 @@ func (c *Collector) Build(_ *slog.Logger, _ *mi.Session) error {
[]string{"af", "state"}, nil,
)
var err error
c.perfDataCollector4, err = pdh.NewCollector[perfDataCounterValues](pdh.CounterTypeRaw, "TCPv4", nil)
if err != nil {
return fmt.Errorf("failed to create TCPv4 collector: %w", err)
}
c.perfDataCollector6, err = pdh.NewCollector[perfDataCounterValues](pdh.CounterTypeRaw, "TCPv6", nil)
if err != nil {
return fmt.Errorf("failed to create TCPv6 collector: %w", err)
}
return nil
}
// Collect sends the metric values for each metric
// to the provided prometheus Metric channel.
func (c *Collector) Collect(ch chan<- prometheus.Metric) error {
errs := make([]error, 0, 2)
errs := make([]error, 0)
if slices.Contains(c.config.CollectorsEnabled, "metrics") {
if err := c.collect(ch); err != nil {