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ethdb/pebble: expose stall counter of pebble

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This commit is contained in:
Gary Rong 2025-05-06 13:19:33 +08:00
parent 485ff4bbff
commit 122e795f93
1 changed files with 24 additions and 2 deletions
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22
ethdb/pebble/pebble.go
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@ -21,6 +21,7 @@ import (
"bytes" "bytes"
"fmt" "fmt"
"runtime" "runtime"
"strings"
"sync" "sync"
"sync/atomic" "sync/atomic"
"time" "time"
@ -57,6 +58,7 @@ const (
type Database struct { type Database struct {
fn string // filename for reporting fn string // filename for reporting
db *pebble.DB // Underlying pebble storage engine db *pebble.DB // Underlying pebble storage engine
namespace string // Namespace for metrics
compTimeMeter *metrics.Meter // Meter for measuring the total time spent in database compaction compTimeMeter *metrics.Meter // Meter for measuring the total time spent in database compaction
compReadMeter *metrics.Meter // Meter for measuring the data read during compaction compReadMeter *metrics.Meter // Meter for measuring the data read during compaction
@ -120,6 +122,10 @@ func (d *Database) onWriteStallBegin(b pebble.WriteStallBeginInfo) {
d.writeDelayStartTime = time.Now() d.writeDelayStartTime = time.Now()
d.writeDelayCount.Add(1) d.writeDelayCount.Add(1)
d.writeStalled.Store(true) d.writeStalled.Store(true)
stall := "stall/" + toCamelCase(b.Reason)
gauge := metrics.GetOrRegisterGauge(d.namespace+stall, nil)
gauge.Inc(1)
} }
func (d *Database) onWriteStallEnd() { func (d *Database) onWriteStallEnd() {
@ -669,3 +675,19 @@ func (iter *pebbleIterator) Release() {
iter.released = true iter.released = true
} }
} }
// toCamelCase converts string to camel case.
func toCamelCase(s string) string {
words := strings.FieldsFunc(s, func(r rune) bool {
return r == ' ' || r == '_' || r == '-' // split by space, underscore, or dash
})
for i := range words {
if i == 0 {
continue
}
if len(words[i]) > 0 {
words[i] = strings.ToUpper(words[i][:1]) + strings.ToLower(words[i][1:])
}
}
return strings.Join(words, "")
}