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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| package exporter | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "github.com/ktsstudio/selectel-exporter/pkg/selapi" | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| "time" | ||
| ) | ||
|
|
||
| func buildGaugeKey(metricName, ip, dbName string) string { | ||
| return fmt.Sprintf("%s_%s_%s", metricName, ip, dbName) | ||
| } | ||
|
|
||
| type databaseCollector struct { | ||
| project selapi.Project | ||
| datastore selapi.Datastore | ||
| metrics map[string]prometheus.Gauge | ||
| } | ||
|
|
||
| func NewDatabaseCollector(project selapi.Project, datastore selapi.Datastore) *databaseCollector { | ||
| return &databaseCollector{ | ||
| project: project, | ||
| datastore: datastore, | ||
| metrics: make(map[string]prometheus.Gauge), | ||
| } | ||
| } | ||
|
|
||
| func (col *databaseCollector) registerGauge(metricName string, metric selapi.DatabaseMetric) { | ||
| key := buildGaugeKey(metricName, metric.Ip, metric.DbName) | ||
| g, ok := col.metrics[key] | ||
| if !ok { | ||
| g = prometheus.NewGauge(prometheus.GaugeOpts{ | ||
| Name: metricName, | ||
| ConstLabels: prometheus.Labels{ | ||
| "project": col.project.Name, | ||
| "datastore": col.datastore.Name, | ||
| "ip": metric.Ip, | ||
| "database": metric.DbName, | ||
| }, | ||
| }) | ||
| prometheus.MustRegister(g) | ||
| col.metrics[key] = g | ||
| } | ||
| g.Set(metric.Last) | ||
| } | ||
|
|
||
| func (col *databaseCollector) loadMetrics(metricName string, metrics []selapi.DatabaseMetric) { | ||
| for _, m := range metrics { | ||
| col.registerGauge(metricName, m) | ||
| } | ||
| } | ||
|
|
||
| func (col *databaseCollector) GetInfo() string { | ||
| return fmt.Sprintf( | ||
| "project: %s, datastore: %s - collect database metrics", col.project.Name, col.datastore.Name) | ||
| } | ||
|
|
||
| func (col *databaseCollector) Collect(e *exporter) error { | ||
| start := time.Now().Add(-1 * time.Minute).Unix() | ||
| end := time.Now().Unix() | ||
| res, err := selapi.FetchDatabaseMetrics(e.openstackAccountToken, e.region, col.datastore.Id, start, end) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| col.loadMetrics("selectel_database_locks", res.Metrics.Locks) | ||
| col.loadMetrics("selectel_database_deadlocks", res.Metrics.Deadlocks) | ||
| col.loadMetrics("selectel_database_cache_hit_ratio", res.Metrics.CacheHitRatio) | ||
| col.loadMetrics("selectel_database_tup_updated", res.Metrics.TupUpdated) | ||
| col.loadMetrics("selectel_database_tup_returned", res.Metrics.TupReturned) | ||
| col.loadMetrics("selectel_database_tup_inserted", res.Metrics.TupInserted) | ||
| col.loadMetrics("selectel_database_tup_fetched", res.Metrics.TupFetched) | ||
| col.loadMetrics("selectel_database_tup_deleted", res.Metrics.TupDeleted) | ||
| col.loadMetrics("selectel_database_xact_rollback", res.Metrics.XActRollback) | ||
| col.loadMetrics("selectel_database_xact_commit", res.Metrics.XActCommit) | ||
| col.loadMetrics("selectel_database_xact_commit_rollback", res.Metrics.XActCommitRollback) | ||
| col.loadMetrics("selectel_database_max_tx_duration", res.Metrics.MaxTxDuration) | ||
| col.loadMetrics("selectel_database_connections", res.Metrics.Connections) | ||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| package selapi | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "github.com/ktsstudio/selectel-exporter/pkg/apperrors" | ||
| "net/http" | ||
| "strconv" | ||
| ) | ||
|
|
||
| type DatabaseMetric struct { | ||
| DatastoreMetric | ||
| DbName string `json:"db_name"` | ||
| } | ||
|
|
||
| type DatabaseMetricsResponses struct { | ||
| Metrics struct { | ||
| Connections []DatabaseMetric `json:"memory_percent"` | ||
| MaxTxDuration []DatabaseMetric `json:"max_tx_duration"` | ||
| XActCommitRollback []DatabaseMetric `json:"xact_commit_rollback"` | ||
| XActCommit []DatabaseMetric `json:"xact_commit"` | ||
| XActRollback []DatabaseMetric `json:"xact_rollback"` | ||
| TupDeleted []DatabaseMetric `json:"tup_deleted"` | ||
| TupFetched []DatabaseMetric `json:"tup_fetched"` | ||
| TupInserted []DatabaseMetric `json:"tup_inserted"` | ||
| TupReturned []DatabaseMetric `json:"tup_returned"` | ||
| TupUpdated []DatabaseMetric `json:"tup_updated"` | ||
| CacheHitRatio []DatabaseMetric `json:"cache_hit_ratio"` | ||
| Deadlocks []DatabaseMetric `json:"deadlocks"` | ||
| Locks []DatabaseMetric `json:"locks"` | ||
| } `json:"metrics"` | ||
| } | ||
|
|
||
| func FetchDatabaseMetrics(token, region, datastoreId string, start, end int64) (*DatabaseMetricsResponses, error) { | ||
| client := &http.Client{} | ||
| req, err := http.NewRequest( | ||
| "GET", | ||
| fmt.Sprintf("https://%s.dbaas.selcloud.ru/v1/datastores/%s/database-metrics", region, datastoreId), | ||
| nil) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| req.Header.Add("X-Auth-Token", token) | ||
| q := req.URL.Query() | ||
| q.Add("start", strconv.FormatInt(start, 10)) | ||
| q.Add("end", strconv.FormatInt(end, 10)) | ||
| req.URL.RawQuery = q.Encode() | ||
|
|
||
| data, err := fetch(client, req) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| resp := &DatabaseMetricsResponses{} | ||
| if err := json.Unmarshal(data, resp); err != nil { | ||
| return nil, apperrors.NewResponseFormatError("DatabaseMetricsResponses") | ||
| } | ||
| return resp, nil | ||
| } |