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|
package collector
import (
"github.com/prometheus/client_golang/prometheus"
)
var (
collWTBlockManagerBlocksTotal = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Namespace: Namespace,
Subsystem: "collection_wiredtiger_blockmanager",
Name: "blocks_total",
Help: "The total number of blocks allocated by the WiredTiger BlockManager",
}, []string{"ns", "type"})
)
var (
collWTCachePages = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Namespace: Namespace,
Subsystem: "collection_wiredtiger_cache",
Name: "pages",
Help: "The current number of pages in the WiredTiger Cache",
}, []string{"ns", "type"})
collWTCachePagesTotal = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Namespace: Namespace,
Subsystem: "collection_wiredtiger_cache",
Name: "pages_total",
Help: "The total number of pages read into/from the WiredTiger Cache",
}, []string{"ns", "type"})
collWTCacheBytes = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Namespace: Namespace,
Subsystem: "collection_wiredtiger_cache",
Name: "bytes",
Help: "The current size of data in the WiredTiger Cache in bytes",
}, []string{"ns", "type"})
collWTCacheBytesTotal = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Namespace: Namespace,
Subsystem: "collection_wiredtiger_cache",
Name: "bytes_total",
Help: "The total number of bytes read into/from the WiredTiger Cache",
}, []string{"ns", "type"})
collWTCacheEvictedTotal = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Namespace: Namespace,
Subsystem: "collection_wiredtiger_cache",
Name: "evicted_total",
Help: "The total number of pages evicted from the WiredTiger Cache",
}, []string{"ns", "type"})
)
var (
collWTTransactionsUpdateConflicts = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Namespace: Namespace,
Subsystem: "collection_wiredtiger_transactions",
Name: "update_conflicts",
Help: "The number of conflicts updating transactions",
}, []string{"ns"})
)
var (
collWTOpenCursors = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Namespace: Namespace,
Subsystem: "collection_wiredtiger_session",
Name: "open_cursors_total",
Help: "The total number of cursors opened in WiredTiger",
}, []string{"ns"})
)
// blockmanager stats
type CollWTBlockManagerStats struct {
BlocksFreed float64 `bson:"blocks freed"`
BlocksAllocated float64 `bson:"blocks allocated"`
}
func (stats *CollWTBlockManagerStats) Export(ch chan<- prometheus.Metric, collection string) {
collWTBlockManagerBlocksTotal.WithLabelValues(collection, "freed").Set(stats.BlocksFreed)
collWTBlockManagerBlocksTotal.WithLabelValues(collection, "allocated").Set(stats.BlocksAllocated)
}
func (stats *CollWTBlockManagerStats) Describe(ch chan<- *prometheus.Desc) {
collWTBlockManagerBlocksTotal.Describe(ch)
}
// cache stats
type CollWTCacheStats struct {
BytesTotal float64 `bson:"bytes currently in the cache"`
BytesDirty float64 `bson:"tracked dirty bytes in the cache"`
BytesReadInto float64 `bson:"bytes read into cache"`
BytesWrittenFrom float64 `bson:"bytes written from cache"`
EvictedUnmodified float64 `bson:"unmodified pages evicted"`
EvictedModified float64 `bson:"modified pages evicted"`
PagesReadInto float64 `bson:"pages read into cache"`
PagesWrittenFrom float64 `bson:"pages written from cache"`
}
func (stats *CollWTCacheStats) Export(ch chan<- prometheus.Metric, collection string) {
collWTCachePagesTotal.WithLabelValues(collection, "read").Set(stats.PagesReadInto)
collWTCachePagesTotal.WithLabelValues(collection, "written").Set(stats.PagesWrittenFrom)
collWTCacheBytesTotal.WithLabelValues(collection, "read").Set(stats.BytesReadInto)
collWTCacheBytesTotal.WithLabelValues(collection, "written").Set(stats.BytesWrittenFrom)
collWTCacheEvictedTotal.WithLabelValues(collection, "modified").Set(stats.EvictedModified)
collWTCacheEvictedTotal.WithLabelValues(collection, "unmodified").Set(stats.EvictedUnmodified)
collWTCacheBytes.WithLabelValues(collection, "total").Set(stats.BytesTotal)
collWTCacheBytes.WithLabelValues(collection, "dirty").Set(stats.BytesDirty)
}
func (stats *CollWTCacheStats) Describe(ch chan<- *prometheus.Desc) {
collWTCachePagesTotal.Describe(ch)
collWTCacheEvictedTotal.Describe(ch)
collWTCachePages.Describe(ch)
collWTCacheBytes.Describe(ch)
}
// session stats
type CollWTSessionStats struct {
Cursors float64 `bson:"open cursor count"`
}
func (stats *CollWTSessionStats) Export(ch chan<- prometheus.Metric, collection string) {
collWTOpenCursors.WithLabelValues(collection).Set(stats.Cursors)
}
func (stats *CollWTSessionStats) Describe(ch chan<- *prometheus.Desc) {
collWTOpenCursors.Describe(ch)
}
// transaction stats
type CollWTTransactionStats struct {
UpdateConflicts float64 `bson:"update conflicts"`
}
func (stats *CollWTTransactionStats) Export(ch chan<- prometheus.Metric, collection string) {
collWTTransactionsUpdateConflicts.WithLabelValues(collection).Set(stats.UpdateConflicts)
}
func (stats *CollWTTransactionStats) Describe(ch chan<- *prometheus.Desc) {
collWTTransactionsUpdateConflicts.Describe(ch)
}
// WiredTiger stats
type CollWiredTigerStats struct {
BlockManager *CollWTBlockManagerStats `bson:"block-manager"`
Cache *CollWTCacheStats `bson:"cache"`
Session *CollWTSessionStats `bson:"session"`
Transaction *CollWTTransactionStats `bson:"transaction"`
}
func (stats *CollWiredTigerStats) Describe(ch chan<- *prometheus.Desc) {
if stats.BlockManager != nil {
stats.BlockManager.Describe(ch)
}
if stats.Cache != nil {
stats.Cache.Describe(ch)
}
if stats.Transaction != nil {
stats.Transaction.Describe(ch)
}
if stats.Session != nil {
stats.Session.Describe(ch)
}
}
func (stats *CollWiredTigerStats) Export(ch chan<- prometheus.Metric, collection string) {
if stats.BlockManager != nil {
stats.BlockManager.Export(ch, collection)
}
if stats.Cache != nil {
stats.Cache.Export(ch, collection)
}
if stats.Transaction != nil {
stats.Transaction.Export(ch, collection)
}
if stats.Session != nil {
stats.Session.Export(ch, collection)
}
collWTBlockManagerBlocksTotal.Collect(ch)
collWTCachePagesTotal.Collect(ch)
collWTCacheBytesTotal.Collect(ch)
collWTCacheEvictedTotal.Collect(ch)
collWTCachePages.Collect(ch)
collWTCacheBytes.Collect(ch)
collWTTransactionsUpdateConflicts.Collect(ch)
collWTOpenCursors.Collect(ch)
collWTBlockManagerBlocksTotal.Reset()
collWTCachePagesTotal.Reset()
collWTCacheBytesTotal.Reset()
collWTCacheEvictedTotal.Reset()
collWTCachePages.Reset()
collWTCacheBytes.Reset()
collWTTransactionsUpdateConflicts.Reset()
collWTOpenCursors.Reset()
}
|
