gaspersic/go-ethereum
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

vendor, ethdb: resume write operation asap (#17144)

Browse Source 
* vendor: update leveldb

* ethdb: remove useless warning log
This commit is contained in:
gary rong
2018-07-12 16:07:51 +08:00
committed by Péter Szilágyi
parent a9835c1816
commit e8824f6e74
6 changed files with 276 additions and 173 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
ethdb/database.go
View File

@ -34,9 +34,7 @@ import (
)
const (
writeDelayNThreshold = 200
writeDelayThreshold = 350 * time.Millisecond
writeDelayWarningThrottler = 1 * time.Minute
writePauseWarningThrottler = 1 * time.Minute
)
var OpenFileLimit = 64
@ -206,8 +204,6 @@ func (db *LDBDatabase) meter(refresh time.Duration) {
// Create storage and warning log tracer for write delay.
var (
delaystats [2]int64
lastWriteDelay time.Time
lastWriteDelayN time.Time
lastWritePaused time.Time
)
@ -293,36 +289,17 @@ func (db *LDBDatabase) meter(refresh time.Duration) {
}
if db.writeDelayNMeter != nil {
db.writeDelayNMeter.Mark(delayN - delaystats[0])
// If the write delay number been collected in the last minute exceeds the predefined threshold,
// print a warning log here.
// If a warning that db performance is laggy has been displayed,
// any subsequent warnings will be withhold for 1 minute to don't overwhelm the user.
if int(db.writeDelayNMeter.Rate1()) > writeDelayNThreshold &&
time.Now().After(lastWriteDelayN.Add(writeDelayWarningThrottler)) {
db.log.Warn("Write delay number exceeds the threshold (200 per second) in the last minute")
lastWriteDelayN = time.Now()
}
}
if db.writeDelayMeter != nil {
db.writeDelayMeter.Mark(duration.Nanoseconds() - delaystats[1])
// If the write delay duration been collected in the last minute exceeds the predefined threshold,
// print a warning log here.
// If a warning that db performance is laggy has been displayed,
// any subsequent warnings will be withhold for 1 minute to don't overwhelm the user.
if int64(db.writeDelayMeter.Rate1()) > writeDelayThreshold.Nanoseconds() &&
time.Now().After(lastWriteDelay.Add(writeDelayWarningThrottler)) {
db.log.Warn("Write delay duration exceeds the threshold (35% of the time) in the last minute")
lastWriteDelay = time.Now()
}
}
// If a warning that db is performing compaction has been displayed, any subsequent
// warnings will be withheld for one minute not to overwhelm the user.
if paused && delayN-delaystats[0] == 0 && duration.Nanoseconds()-delaystats[1] == 0 &&
time.Now().After(lastWritePaused.Add(writeDelayWarningThrottler)) {
time.Now().After(lastWritePaused.Add(writePauseWarningThrottler)) {
db.log.Warn("Database compacting, degraded performance")
lastWritePaused = time.Now()
}
delaystats[0], delaystats[1] = delayN, duration.Nanoseconds()
// Retrieve the database iostats.