Created
May 5, 2019 12:51
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Mgo prometheus collector
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package mongo | |
import ( | |
"github.com/globalsign/mgo" | |
"github.com/prometheus/client_golang/prometheus" | |
) | |
type mgoCollector struct { | |
clusterDesc *prometheus.Desc | |
masterConnDesc *prometheus.Desc | |
slaveConnDesc *prometheus.Desc | |
sentOpDesc *prometheus.Desc | |
receivedOpDesc *prometheus.Desc | |
receivedDocDesc *prometheus.Desc | |
socketsAliveDesc *prometheus.Desc | |
socketsInUseDesc *prometheus.Desc | |
socketRefDesc *prometheus.Desc | |
} | |
// NewMgoCollector returns a collector which exports metrics about mgo stats. | |
func NewMgoCollector() prometheus.Collector { | |
mgo.SetStats(true) | |
return &mgoCollector{ | |
clusterDesc: prometheus.NewDesc( | |
"mgo_cluster", | |
"Mgo Cluster from stats", | |
nil, nil, | |
), | |
masterConnDesc: prometheus.NewDesc( | |
"mgo_master_conn", | |
"Mgo Master Conn from stats", | |
nil, nil, | |
), | |
slaveConnDesc: prometheus.NewDesc( | |
"mgo_slave_conn", | |
"Mgo Slave Conn from stats", | |
nil, nil, | |
), | |
sentOpDesc: prometheus.NewDesc( | |
"mgo_sent_op", | |
"Mgo sent op from stats", | |
nil, nil, | |
), | |
receivedOpDesc: prometheus.NewDesc( | |
"mgo_received_op", | |
"Mgo received op from stats", | |
nil, nil, | |
), | |
receivedDocDesc: prometheus.NewDesc( | |
"mgo_received_doc", | |
"Mgo received doc from stats", | |
nil, nil, | |
), | |
socketsAliveDesc: prometheus.NewDesc( | |
"mgo_sockets_alive", | |
"Mgo sockets alive from stats", | |
nil, nil, | |
), | |
socketsInUseDesc: prometheus.NewDesc( | |
"mgo_sockets_in_use", | |
"Mgo sockets in use from stats", | |
nil, nil, | |
), | |
socketRefDesc: prometheus.NewDesc( | |
"mgo_socket_ref", | |
"Mgo socket ref from stats", | |
nil, nil, | |
), | |
} | |
} | |
// Describe returns all descriptions of the collector. | |
func (c *mgoCollector) Describe(ch chan<- *prometheus.Desc) { | |
ch <- c.clusterDesc | |
ch <- c.masterConnDesc | |
ch <- c.slaveConnDesc | |
ch <- c.sentOpDesc | |
ch <- c.receivedOpDesc | |
ch <- c.receivedDocDesc | |
ch <- c.socketsAliveDesc | |
ch <- c.socketsInUseDesc | |
ch <- c.socketRefDesc | |
} | |
// Collect returns the current state of all metrics of the collector. | |
func (c *mgoCollector) Collect(ch chan<- prometheus.Metric) { | |
stats := mgo.GetStats() | |
ch <- prometheus.MustNewConstMetric(c.clusterDesc, prometheus.GaugeValue, float64(stats.Clusters)) | |
ch <- prometheus.MustNewConstMetric(c.masterConnDesc, prometheus.GaugeValue, float64(stats.MasterConns)) | |
ch <- prometheus.MustNewConstMetric(c.slaveConnDesc, prometheus.GaugeValue, float64(stats.SlaveConns)) | |
ch <- prometheus.MustNewConstMetric(c.sentOpDesc, prometheus.GaugeValue, float64(stats.SentOps)) | |
ch <- prometheus.MustNewConstMetric(c.receivedOpDesc, prometheus.GaugeValue, float64(stats.ReceivedOps)) | |
ch <- prometheus.MustNewConstMetric(c.receivedDocDesc, prometheus.GaugeValue, float64(stats.ReceivedDocs)) | |
ch <- prometheus.MustNewConstMetric(c.socketsAliveDesc, prometheus.GaugeValue, float64(stats.SocketsAlive)) | |
ch <- prometheus.MustNewConstMetric(c.socketsInUseDesc, prometheus.GaugeValue, float64(stats.SocketsInUse)) | |
ch <- prometheus.MustNewConstMetric(c.socketRefDesc, prometheus.GaugeValue, float64(stats.SocketRefs)) | |
} |
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