diff --git a/ethdb/leveldb/leveldb.go b/ethdb/leveldb/leveldb.go index aba6593c7..378d4c3cd 100644 --- a/ethdb/leveldb/leveldb.go +++ b/ethdb/leveldb/leveldb.go @@ -62,14 +62,18 @@ type Database struct { fn string // filename for reporting db *leveldb.DB // LevelDB instance - compTimeMeter metrics.Meter // Meter for measuring the total time spent in database compaction - compReadMeter metrics.Meter // Meter for measuring the data read during compaction - compWriteMeter metrics.Meter // Meter for measuring the data written during compaction - writeDelayNMeter metrics.Meter // Meter for measuring the write delay number due to database compaction - writeDelayMeter metrics.Meter // Meter for measuring the write delay duration due to database compaction - diskSizeGauge metrics.Gauge // Gauge for tracking the size of all the levels in the database - diskReadMeter metrics.Meter // Meter for measuring the effective amount of data read - diskWriteMeter metrics.Meter // Meter for measuring the effective amount of data written + compTimeMeter metrics.Meter // Meter for measuring the total time spent in database compaction + compReadMeter metrics.Meter // Meter for measuring the data read during compaction + compWriteMeter metrics.Meter // Meter for measuring the data written during compaction + writeDelayNMeter metrics.Meter // Meter for measuring the write delay number due to database compaction + writeDelayMeter metrics.Meter // Meter for measuring the write delay duration due to database compaction + diskSizeGauge metrics.Gauge // Gauge for tracking the size of all the levels in the database + diskReadMeter metrics.Meter // Meter for measuring the effective amount of data read + diskWriteMeter metrics.Meter // Meter for measuring the effective amount of data written + memCompGauge metrics.Gauge // Gauge for tracking the number of memory compaction + level0CompGauge metrics.Gauge // Gauge for tracking the number of table compaction in level0 + nonlevel0CompGauge metrics.Gauge // Gauge for tracking the number of table compaction in non0 level + seekCompGauge metrics.Gauge // Gauge for tracking the number of table compaction caused by read opt quitLock sync.Mutex // Mutex protecting the quit channel access quitChan chan chan error // Quit channel to stop the metrics collection before closing the database @@ -96,6 +100,7 @@ func New(file string, cache int, handles int, namespace string) (*Database, erro BlockCacheCapacity: cache / 2 * opt.MiB, WriteBuffer: cache / 4 * opt.MiB, // Two of these are used internally Filter: filter.NewBloomFilter(10), + DisableSeeksCompaction: true, }) if _, corrupted := err.(*errors.ErrCorrupted); corrupted { db, err = leveldb.RecoverFile(file, nil) @@ -118,6 +123,10 @@ func New(file string, cache int, handles int, namespace string) (*Database, erro ldb.diskWriteMeter = metrics.NewRegisteredMeter(namespace+"disk/write", nil) ldb.writeDelayMeter = metrics.NewRegisteredMeter(namespace+"compact/writedelay/duration", nil) ldb.writeDelayNMeter = metrics.NewRegisteredMeter(namespace+"compact/writedelay/counter", nil) + ldb.memCompGauge = metrics.NewRegisteredGauge(namespace+"compact/memory", nil) + ldb.level0CompGauge = metrics.NewRegisteredGauge(namespace+"compact/level0", nil) + ldb.nonlevel0CompGauge = metrics.NewRegisteredGauge(namespace+"compact/nonlevel0", nil) + ldb.seekCompGauge = metrics.NewRegisteredGauge(namespace+"compact/seek", nil) // Start up the metrics gathering and return go ldb.meter(metricsGatheringInterval) @@ -375,6 +384,29 @@ func (db *Database) meter(refresh time.Duration) { } iostats[0], iostats[1] = nRead, nWrite + compCount, err := db.db.GetProperty("leveldb.compcount") + if err != nil { + db.log.Error("Failed to read database iostats", "err", err) + merr = err + continue + } + + var ( + memComp uint32 + level0Comp uint32 + nonLevel0Comp uint32 + seekComp uint32 + ) + if n, err := fmt.Sscanf(compCount, "MemComp:%d Level0Comp:%d NonLevel0Comp:%d SeekComp:%d", &memComp, &level0Comp, &nonLevel0Comp, &seekComp); n != 4 || err != nil { + db.log.Error("Compaction count statistic not found") + merr = err + continue + } + db.memCompGauge.Update(int64(memComp)) + db.level0CompGauge.Update(int64(level0Comp)) + db.nonlevel0CompGauge.Update(int64(nonLevel0Comp)) + db.seekCompGauge.Update(int64(seekComp)) + // Sleep a bit, then repeat the stats collection select { case errc = <-db.quitChan: diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/batch.go b/vendor/github.com/syndtr/goleveldb/leveldb/batch.go index 225920002..823be93f9 100644 --- a/vendor/github.com/syndtr/goleveldb/leveldb/batch.go +++ b/vendor/github.com/syndtr/goleveldb/leveldb/batch.go @@ -238,6 +238,11 @@ func newBatch() interface{} { return &Batch{} } +// MakeBatch returns empty batch with preallocated buffer. +func MakeBatch(n int) *Batch { + return &Batch{data: make([]byte, 0, n)} +} + func decodeBatch(data []byte, fn func(i int, index batchIndex) error) error { var index batchIndex for i, o := 0, 0; o < len(data); i++ { diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/db.go b/vendor/github.com/syndtr/goleveldb/leveldb/db.go index 0de5ffe8d..74e982695 100644 --- a/vendor/github.com/syndtr/goleveldb/leveldb/db.go +++ b/vendor/github.com/syndtr/goleveldb/leveldb/db.go @@ -38,6 +38,12 @@ type DB struct { inWritePaused int32 // The indicator whether write operation is paused by compaction aliveSnaps, aliveIters int32 + // Compaction statistic + memComp uint32 // The cumulative number of memory compaction + level0Comp uint32 // The cumulative number of level0 compaction + nonLevel0Comp uint32 // The cumulative number of non-level0 compaction + seekComp uint32 // The cumulative number of seek compaction + // Session. s *session @@ -978,6 +984,8 @@ func (db *DB) GetProperty(name string) (value string, err error) { value += fmt.Sprintf(" Total | %10d | %13.5f | %13.5f | %13.5f | %13.5f\n", totalTables, float64(totalSize)/1048576.0, totalDuration.Seconds(), float64(totalRead)/1048576.0, float64(totalWrite)/1048576.0) + case p == "compcount": + value = fmt.Sprintf("MemComp:%d Level0Comp:%d NonLevel0Comp:%d SeekComp:%d", atomic.LoadUint32(&db.memComp), atomic.LoadUint32(&db.level0Comp), atomic.LoadUint32(&db.nonLevel0Comp), atomic.LoadUint32(&db.seekComp)) case p == "iostats": value = fmt.Sprintf("Read(MB):%.5f Write(MB):%.5f", float64(db.s.stor.reads())/1048576.0, @@ -1034,6 +1042,11 @@ type DBStats struct { LevelRead Sizes LevelWrite Sizes LevelDurations []time.Duration + + MemComp uint32 + Level0Comp uint32 + NonLevel0Comp uint32 + SeekComp uint32 } // Stats populates s with database statistics. @@ -1070,16 +1083,17 @@ func (db *DB) Stats(s *DBStats) error { for level, tables := range v.levels { duration, read, write := db.compStats.getStat(level) - if len(tables) == 0 && duration == 0 { - continue - } + s.LevelDurations = append(s.LevelDurations, duration) s.LevelRead = append(s.LevelRead, read) s.LevelWrite = append(s.LevelWrite, write) s.LevelSizes = append(s.LevelSizes, tables.size()) s.LevelTablesCounts = append(s.LevelTablesCounts, len(tables)) } - + s.MemComp = atomic.LoadUint32(&db.memComp) + s.Level0Comp = atomic.LoadUint32(&db.level0Comp) + s.NonLevel0Comp = atomic.LoadUint32(&db.nonLevel0Comp) + s.SeekComp = atomic.LoadUint32(&db.seekComp) return nil } diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/db_compaction.go b/vendor/github.com/syndtr/goleveldb/leveldb/db_compaction.go index 56f3632a7..6b70eb2c9 100644 --- a/vendor/github.com/syndtr/goleveldb/leveldb/db_compaction.go +++ b/vendor/github.com/syndtr/goleveldb/leveldb/db_compaction.go @@ -8,6 +8,7 @@ package leveldb import ( "sync" + "sync/atomic" "time" "github.com/syndtr/goleveldb/leveldb/errors" @@ -324,10 +325,12 @@ func (db *DB) memCompaction() { db.logf("memdb@flush committed F·%d T·%v", len(rec.addedTables), stats.duration) + // Save compaction stats for _, r := range rec.addedTables { stats.write += r.size } db.compStats.addStat(flushLevel, stats) + atomic.AddUint32(&db.memComp, 1) // Drop frozen memdb. db.dropFrozenMem() @@ -588,6 +591,14 @@ func (db *DB) tableCompaction(c *compaction, noTrivial bool) { for i := range stats { db.compStats.addStat(c.sourceLevel+1, &stats[i]) } + switch c.typ { + case level0Compaction: + atomic.AddUint32(&db.level0Comp, 1) + case nonLevel0Compaction: + atomic.AddUint32(&db.nonLevel0Comp, 1) + case seekCompaction: + atomic.AddUint32(&db.seekComp, 1) + } } func (db *DB) tableRangeCompaction(level int, umin, umax []byte) error { diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/db_iter.go b/vendor/github.com/syndtr/goleveldb/leveldb/db_iter.go index 03c24cdab..e6e8ca59d 100644 --- a/vendor/github.com/syndtr/goleveldb/leveldb/db_iter.go +++ b/vendor/github.com/syndtr/goleveldb/leveldb/db_iter.go @@ -78,13 +78,17 @@ func (db *DB) newIterator(auxm *memDB, auxt tFiles, seq uint64, slice *util.Rang } rawIter := db.newRawIterator(auxm, auxt, islice, ro) iter := &dbIter{ - db: db, - icmp: db.s.icmp, - iter: rawIter, - seq: seq, - strict: opt.GetStrict(db.s.o.Options, ro, opt.StrictReader), - key: make([]byte, 0), - value: make([]byte, 0), + db: db, + icmp: db.s.icmp, + iter: rawIter, + seq: seq, + strict: opt.GetStrict(db.s.o.Options, ro, opt.StrictReader), + disableSampling: db.s.o.GetDisableSeeksCompaction() || db.s.o.GetIteratorSamplingRate() <= 0, + key: make([]byte, 0), + value: make([]byte, 0), + } + if !iter.disableSampling { + iter.samplingGap = db.iterSamplingRate() } atomic.AddInt32(&db.aliveIters, 1) runtime.SetFinalizer(iter, (*dbIter).Release) @@ -107,13 +111,14 @@ const ( // dbIter represent an interator states over a database session. type dbIter struct { - db *DB - icmp *iComparer - iter iterator.Iterator - seq uint64 - strict bool + db *DB + icmp *iComparer + iter iterator.Iterator + seq uint64 + strict bool + disableSampling bool - smaplingGap int + samplingGap int dir dir key []byte value []byte @@ -122,10 +127,14 @@ type dbIter struct { } func (i *dbIter) sampleSeek() { + if i.disableSampling { + return + } + ikey := i.iter.Key() - i.smaplingGap -= len(ikey) + len(i.iter.Value()) - for i.smaplingGap < 0 { - i.smaplingGap += i.db.iterSamplingRate() + i.samplingGap -= len(ikey) + len(i.iter.Value()) + for i.samplingGap < 0 { + i.samplingGap += i.db.iterSamplingRate() i.db.sampleSeek(ikey) } } diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/db_transaction.go b/vendor/github.com/syndtr/goleveldb/leveldb/db_transaction.go index f145b64fb..21d1e512f 100644 --- a/vendor/github.com/syndtr/goleveldb/leveldb/db_transaction.go +++ b/vendor/github.com/syndtr/goleveldb/leveldb/db_transaction.go @@ -69,6 +69,9 @@ func (tr *Transaction) Has(key []byte, ro *opt.ReadOptions) (bool, error) { // DB. And a nil Range.Limit is treated as a key after all keys in // the DB. // +// The returned iterator has locks on its own resources, so it can live beyond +// the lifetime of the transaction who creates them. +// // WARNING: Any slice returned by interator (e.g. slice returned by calling // Iterator.Key() or Iterator.Key() methods), its content should not be modified // unless noted otherwise. @@ -252,13 +255,14 @@ func (tr *Transaction) discard() { // Discard transaction. for _, t := range tr.tables { tr.db.logf("transaction@discard @%d", t.fd.Num) - if err1 := tr.db.s.stor.Remove(t.fd); err1 == nil { - tr.db.s.reuseFileNum(t.fd.Num) - } + // Iterator may still use the table, so we use tOps.remove here. + tr.db.s.tops.remove(t.fd) } } // Discard discards the transaction. +// This method is noop if transaction is already closed (either committed or +// discarded) // // Other methods should not be called after transaction has been discarded. func (tr *Transaction) Discard() { @@ -282,8 +286,10 @@ func (db *DB) waitCompaction() error { // until in-flight transaction is committed or discarded. // The returned transaction handle is safe for concurrent use. // -// Transaction is expensive and can overwhelm compaction, especially if +// Transaction is very expensive and can overwhelm compaction, especially if // transaction size is small. Use with caution. +// The rule of thumb is if you need to merge at least same amount of +// `Options.WriteBuffer` worth of data then use transaction, otherwise don't. // // The transaction must be closed once done, either by committing or discarding // the transaction. diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/filter/bloom.go b/vendor/github.com/syndtr/goleveldb/leveldb/filter/bloom.go index bab0e9970..56ccbfbec 100644 --- a/vendor/github.com/syndtr/goleveldb/leveldb/filter/bloom.go +++ b/vendor/github.com/syndtr/goleveldb/leveldb/filter/bloom.go @@ -16,7 +16,7 @@ func bloomHash(key []byte) uint32 { type bloomFilter int -// The bloom filter serializes its parameters and is backward compatible +// Name: The bloom filter serializes its parameters and is backward compatible // with respect to them. Therefor, its parameters are not added to its // name. func (bloomFilter) Name() string { diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/memdb/memdb.go b/vendor/github.com/syndtr/goleveldb/leveldb/memdb/memdb.go index b661c08a9..824e47f5f 100644 --- a/vendor/github.com/syndtr/goleveldb/leveldb/memdb/memdb.go +++ b/vendor/github.com/syndtr/goleveldb/leveldb/memdb/memdb.go @@ -397,6 +397,10 @@ func (p *DB) Find(key []byte) (rkey, value []byte, err error) { // DB. And a nil Range.Limit is treated as a key after all keys in // the DB. // +// WARNING: Any slice returned by interator (e.g. slice returned by calling +// Iterator.Key() or Iterator.Key() methods), its content should not be modified +// unless noted otherwise. +// // The iterator must be released after use, by calling Release method. // // Also read Iterator documentation of the leveldb/iterator package. diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/opt/options.go b/vendor/github.com/syndtr/goleveldb/leveldb/opt/options.go index 528b16423..c02c1e978 100644 --- a/vendor/github.com/syndtr/goleveldb/leveldb/opt/options.go +++ b/vendor/github.com/syndtr/goleveldb/leveldb/opt/options.go @@ -278,6 +278,14 @@ type Options struct { // The default is false. DisableLargeBatchTransaction bool + // DisableSeeksCompaction allows disabling 'seeks triggered compaction'. + // The purpose of 'seeks triggered compaction' is to optimize database so + // that 'level seeks' can be minimized, however this might generate many + // small compaction which may not preferable. + // + // The default is false. + DisableSeeksCompaction bool + // ErrorIfExist defines whether an error should returned if the DB already // exist. // @@ -309,6 +317,8 @@ type Options struct { // IteratorSamplingRate defines approximate gap (in bytes) between read // sampling of an iterator. The samples will be used to determine when // compaction should be triggered. + // Use negative value to disable iterator sampling. + // The iterator sampling is disabled if DisableSeeksCompaction is true. // // The default is 1MiB. IteratorSamplingRate int @@ -526,6 +536,13 @@ func (o *Options) GetDisableLargeBatchTransaction() bool { return o.DisableLargeBatchTransaction } +func (o *Options) GetDisableSeeksCompaction() bool { + if o == nil { + return false + } + return o.DisableSeeksCompaction +} + func (o *Options) GetErrorIfExist() bool { if o == nil { return false @@ -548,8 +565,10 @@ func (o *Options) GetFilter() filter.Filter { } func (o *Options) GetIteratorSamplingRate() int { - if o == nil || o.IteratorSamplingRate <= 0 { + if o == nil || o.IteratorSamplingRate == 0 { return DefaultIteratorSamplingRate + } else if o.IteratorSamplingRate < 0 { + return 0 } return o.IteratorSamplingRate } diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/session_compaction.go b/vendor/github.com/syndtr/goleveldb/leveldb/session_compaction.go index f6030022d..4c1d336be 100644 --- a/vendor/github.com/syndtr/goleveldb/leveldb/session_compaction.go +++ b/vendor/github.com/syndtr/goleveldb/leveldb/session_compaction.go @@ -14,6 +14,13 @@ import ( "github.com/syndtr/goleveldb/leveldb/opt" ) +const ( + undefinedCompaction = iota + level0Compaction + nonLevel0Compaction + seekCompaction +) + func (s *session) pickMemdbLevel(umin, umax []byte, maxLevel int) int { v := s.version() defer v.release() @@ -50,6 +57,7 @@ func (s *session) pickCompaction() *compaction { var sourceLevel int var t0 tFiles + var typ int if v.cScore >= 1 { sourceLevel = v.cLevel cptr := s.getCompPtr(sourceLevel) @@ -63,18 +71,24 @@ func (s *session) pickCompaction() *compaction { if len(t0) == 0 { t0 = append(t0, tables[0]) } + if sourceLevel == 0 { + typ = level0Compaction + } else { + typ = nonLevel0Compaction + } } else { if p := atomic.LoadPointer(&v.cSeek); p != nil { ts := (*tSet)(p) sourceLevel = ts.level t0 = append(t0, ts.table) + typ = seekCompaction } else { v.release() return nil } } - return newCompaction(s, v, sourceLevel, t0) + return newCompaction(s, v, sourceLevel, t0, typ) } // Create compaction from given level and range; need external synchronization. @@ -109,13 +123,18 @@ func (s *session) getCompactionRange(sourceLevel int, umin, umax []byte, noLimit } } - return newCompaction(s, v, sourceLevel, t0) + typ := level0Compaction + if sourceLevel != 0 { + typ = nonLevel0Compaction + } + return newCompaction(s, v, sourceLevel, t0, typ) } -func newCompaction(s *session, v *version, sourceLevel int, t0 tFiles) *compaction { +func newCompaction(s *session, v *version, sourceLevel int, t0 tFiles, typ int) *compaction { c := &compaction{ s: s, v: v, + typ: typ, sourceLevel: sourceLevel, levels: [2]tFiles{t0, nil}, maxGPOverlaps: int64(s.o.GetCompactionGPOverlaps(sourceLevel)), @@ -131,6 +150,7 @@ type compaction struct { s *session v *version + typ int sourceLevel int levels [2]tFiles maxGPOverlaps int64 diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/session_util.go b/vendor/github.com/syndtr/goleveldb/leveldb/session_util.go index 67a6df979..fc56b631f 100644 --- a/vendor/github.com/syndtr/goleveldb/leveldb/session_util.go +++ b/vendor/github.com/syndtr/goleveldb/leveldb/session_util.go @@ -308,7 +308,7 @@ func (s *session) setNextFileNum(num int64) { func (s *session) markFileNum(num int64) { nextFileNum := num + 1 for { - old, x := s.stNextFileNum, nextFileNum + old, x := atomic.LoadInt64(&s.stNextFileNum), nextFileNum if old > x { x = old } @@ -326,7 +326,7 @@ func (s *session) allocFileNum() int64 { // Reuse given file number. func (s *session) reuseFileNum(num int64) { for { - old, x := s.stNextFileNum, num + old, x := atomic.LoadInt64(&s.stNextFileNum), num if old != x+1 { x = old } diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/table.go b/vendor/github.com/syndtr/goleveldb/leveldb/table.go index 5ad1f8054..b7759b2f5 100644 --- a/vendor/github.com/syndtr/goleveldb/leveldb/table.go +++ b/vendor/github.com/syndtr/goleveldb/leveldb/table.go @@ -493,6 +493,8 @@ func (t *tOps) remove(fd storage.FileDesc) { if t.evictRemoved && t.bcache != nil { t.bcache.EvictNS(uint64(fd.Num)) } + // Try to reuse file num, useful for discarded transaction. + t.s.reuseFileNum(fd.Num) }) } diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/table/reader.go b/vendor/github.com/syndtr/goleveldb/leveldb/table/reader.go index 16cfbaa00..496feb6fb 100644 --- a/vendor/github.com/syndtr/goleveldb/leveldb/table/reader.go +++ b/vendor/github.com/syndtr/goleveldb/leveldb/table/reader.go @@ -787,6 +787,10 @@ func (r *Reader) getDataIterErr(dataBH blockHandle, slice *util.Range, verifyChe // table. And a nil Range.Limit is treated as a key after all keys in // the table. // +// WARNING: Any slice returned by interator (e.g. slice returned by calling +// Iterator.Key() or Iterator.Key() methods), its content should not be modified +// unless noted otherwise. +// // The returned iterator is not safe for concurrent use and should be released // after use. // diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/version.go b/vendor/github.com/syndtr/goleveldb/leveldb/version.go index 2664560e1..9535e3591 100644 --- a/vendor/github.com/syndtr/goleveldb/leveldb/version.go +++ b/vendor/github.com/syndtr/goleveldb/leveldb/version.go @@ -144,6 +144,7 @@ func (v *version) get(aux tFiles, ikey internalKey, ro *opt.ReadOptions, noValue } ukey := ikey.ukey() + sampleSeeks := !v.s.o.GetDisableSeeksCompaction() var ( tset *tSet @@ -161,7 +162,7 @@ func (v *version) get(aux tFiles, ikey internalKey, ro *opt.ReadOptions, noValue // Since entries never hop across level, finding key/value // in smaller level make later levels irrelevant. v.walkOverlapping(aux, ikey, func(level int, t *tFile) bool { - if level >= 0 && !tseek { + if sampleSeeks && level >= 0 && !tseek { if tset == nil { tset = &tSet{level, t} } else { diff --git a/vendor/vendor.json b/vendor/vendor.json index c74e96202..572d37401 100644 --- a/vendor/vendor.json +++ b/vendor/vendor.json @@ -455,76 +455,76 @@ "revisionTime": "2017-07-05T02:17:15Z" }, { - "checksumSHA1": "4NTmfUj7H5J59M2wCnp3/8FWt1I=", + "checksumSHA1": "Bl4KYAyUkgJSjcdEyv3VhHQ8PVs=", "path": "github.com/syndtr/goleveldb/leveldb", - "revision": "c3a204f8e96543bb0cc090385c001078f184fc46", - "revisionTime": "2019-03-18T03:00:20Z" + "revision": "758128399b1df3a87e92df6c26c1d2063da8fabe", + "revisionTime": "2019-09-23T12:57:48Z" }, { "checksumSHA1": "mPNraL2edpk/2FYq26rSXfMHbJg=", "path": "github.com/syndtr/goleveldb/leveldb/cache", - "revision": "b001fa50d6b27f3f0bb175a87d0cb55426d0a0ae", - "revisionTime": "2018-11-28T10:09:59Z" + "revision": "758128399b1df3a87e92df6c26c1d2063da8fabe", + "revisionTime": "2019-09-23T12:57:48Z" }, { "checksumSHA1": "UA+PKDKWlDnE2OZblh23W6wZwbY=", "path": "github.com/syndtr/goleveldb/leveldb/comparer", - 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