prometheus/postgres_exporter
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merge with upstream

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This commit is contained in:
Nick Cabatoff
2016-09-07 16:29:30 -04:00
parent 64f5d9ac0f 39bd5d3938
commit b3bb44082a
14 changed files with 555 additions and 232 deletions
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36
postgres_exporter.go
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@ -1,27 +1,24 @@
package main
import (
//"bytes"
"database/sql"
"flag"
"fmt"
"net/http"
"os"
//"regexp"
//"strconv"
//"strings"
"gopkg.in/yaml.v2"
"io/ioutil"
"math"
"net/http"
"os"
"strconv"
"time"
"gopkg.in/yaml.v2"
_ "github.com/lib/pq"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/log"
"strconv"
"github.com/prometheus/common/log"
)
var Version string = "0.0.0-dev"
var Version string = "0.0.1"
var (
listenAddress = flag.String(
@ -375,6 +372,10 @@ func makeDescMap(metricMaps map[string]map[string]ColumnMapping) map[string]Metr
return math.NaN(), false
}
if durationString == "-1" {
return math.NaN(), false
}
d, err := time.ParseDuration(durationString)
if err != nil {
log.Errorln("Failed converting result to metric:", columnName, in, err)
@ -438,6 +439,13 @@ func dbToFloat64(t interface{}) (float64, bool) {
return math.NaN(), false
}
return result, true
case string:
result, err := strconv.ParseFloat(v, 64)
if err != nil {
log.Infoln("Could not parse string:", err)
return math.NaN(), false
}
return result, true
case nil:
return math.NaN(), true
default:
@ -556,7 +564,7 @@ func (e *Exporter) scrape(ch chan<- prometheus.Metric) {
db, err := sql.Open("postgres", e.dsn)
if err != nil {
log.Println("Error opening connection to database:", err)
log.Infoln("Error opening connection to database:", err)
e.error.Set(1)
return
}
@ -602,7 +610,7 @@ func (e *Exporter) scrape(ch chan<- prometheus.Metric) {
// Don't fail on a bad scrape of one metric
rows, err := db.Query(query)
if err != nil {
log.Println("Error running query on database: ", namespace, err)
log.Infoln("Error running query on database: ", namespace, err)
e.error.Set(1)
return
}
@ -611,7 +619,7 @@ func (e *Exporter) scrape(ch chan<- prometheus.Metric) {
var columnNames []string
columnNames, err = rows.Columns()
if err != nil {
log.Println("Error retrieving column list for: ", namespace, err)
log.Infoln("Error retrieving column list for: ", namespace, err)
e.error.Set(1)
return
}
@ -631,7 +639,7 @@ func (e *Exporter) scrape(ch chan<- prometheus.Metric) {
for rows.Next() {
err = rows.Scan(scanArgs...)
if err != nil {
log.Println("Error retrieving rows:", namespace, err)
log.Infoln("Error retrieving rows:", namespace, err)
e.error.Set(1)
return
}