Add debug informations when fail to scrap metrics.

Yannig · Yannig · commit 84d0d2b53767 · 2019-12-30T12:29:18.000+01:00
diff --git a/main.go b/main.go
@@ -234,6 +234,8 @@ func ScrapeGenericValues(db *sql.DB, ch chan<- prometheus.Metric, context string
       value, err := strconv.ParseFloat(strings.TrimSpace(row[metric]), 64)
       // If not a float, skip current metric
       if err != nil {
+        log.Errorln("Unable to convert current value to float (metric=" + metric +
+                    ",metricHelp=" + metricHelp + ",value=<" + row[metric] + ">)")
         continue
       }
       // If metric do not use a field content in metric's name

Original file line number	Diff line number	Diff line change
`@@ -234,6 +234,8 @@ func ScrapeGenericValues(db *sql.DB, ch chan<- prometheus.Metric, context string`
`234`	`234`	`value, err := strconv.ParseFloat(strings.TrimSpace(row[metric]), 64)`
`235`	`235`	`// If not a float, skip current metric`
`236`	`236`	`if err != nil {`
	`237`	`+ log.Errorln("Unable to convert current value to float (metric=" + metric +`
	`238`	`+ ",metricHelp=" + metricHelp + ",value=<" + row[metric] + ">)")`
`237`	`239`	`continue`
`238`	`240`	`}`
`239`	`241`	`// If metric do not use a field content in metric's name`