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expose pebble open options, add more compact metrics #306
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Squashed commit of the following:

commit 07f6d7a8c149f8752aa8deef4598cfd184a37e94
Merge: 5b7b36a33 3ad148820
Author: Maciej Kulawik <[email protected]>
Date:   Wed May 22 13:48:09 2024 +0200

    Merge branch 'master' into pebble-extra-options

commit 5b7b36a339ac28d708bca072dc5ec8189ceadac2
Author: Maciej Kulawik <[email protected]>
Date:   Wed May 15 21:23:29 2024 +0200

    remove unnecessary new lines

commit bb30724a7b0ba4cd7b2f57a7a2c964087f97f068
Author: Maciej Kulawik <[email protected]>
Date:   Wed May 15 21:21:01 2024 +0200

    revert accidental comment change

commit 6d23a7b7e6a99701adf1f69701ad367dec61c08c
Merge: ac85a19d5 8512c124d
Author: Maciej Kulawik <[email protected]>
Date:   Tue May 14 12:41:37 2024 +0200

    Merge branch 'master' into pebble-extra-options

commit ac85a19d5f56231076d5bab95504d666b084fa3b
Merge: 1aaeef759 da4c975e3
Author: Maciej Kulawik <[email protected]>
Date:   Sat May 4 00:26:27 2024 +0200

    Merge branch 'master' into pebble-extra-options

commit 1aaeef75987a3d4379cf7d876cdf1526d8701884
Merge: 3ecb5979a f94174378
Author: Maciej Kulawik <[email protected]>
Date:   Thu May 2 18:04:36 2024 +0200

    Merge branch 'master' into pebble-extra-options

commit 3ecb5979ae489902c97d7146209c35071d167be6
Author: Maciej Kulawik <[email protected]>
Date:   Thu May 2 17:38:21 2024 +0200

    use GetOrRegister* for new metrics

commit d1e94af41742958623210f7a0beae6a93f52e750
Merge: 9f39f194d 92b91d3fa
Author: Maciej Kulawik <[email protected]>
Date:   Thu May 2 17:35:40 2024 +0200

    Merge branch 'fix-pebble-metrics-registration' into pebble-extra-options

commit 9f39f194d0a5b1ab1a47b1d4f83cd112f18dc4b3
Author: Maciej Kulawik <[email protected]>
Date:   Fri Apr 26 22:50:02 2024 +0200

    remove wal queue wait metric as it's not used by pebble yet

commit a67aac7029db022dd0e078783809e2fedf20de53
Merge: 31dcc5497 19f822748
Author: Maciej Kulawik <[email protected]>
Date:   Thu Apr 25 02:28:55 2024 +0200

    Merge branch 'master' into pebble-extra-options

commit 31dcc54970876a09e13820a4a7334f39af38157d
Author: Maciej Kulawik <[email protected]>
Date:   Thu Apr 25 00:54:11 2024 +0200

    revert metrics interval change

commit 07d08fede3e5e8bbfbdb3797fad08d94f8c7699a
Merge: 76745ffed 56f17c846
Author: Maciej Kulawik <[email protected]>
Date:   Thu Apr 25 00:49:25 2024 +0200

    Merge branch 'master' into pebble-extra-options

commit 76745ffed5649d82beea1766aadeb4420aa62d48
Author: Maciej Kulawik <[email protected]>
Date:   Thu Apr 25 00:47:05 2024 +0200

    add pebble commit delay metrics

commit 5e8d11c191c4b88e53ca53e69b7854efe89487fd
Author: Maciej Kulawik <[email protected]>
Date:   Wed Apr 24 16:00:16 2024 +0200

    fix default MemTableStopWritesThreshold

commit 040c6f787056826112340ce0b4e5b8d43503f20a
Author: Maciej Kulawik <[email protected]>
Date:   Wed Apr 24 15:37:40 2024 +0200

    add mem-table-stop-writes-threshold pebble extra option

commit 509f1114edd9d4e367cedfe4011ceed5766e3f07
Author: Maciej Kulawik <[email protected]>
Date:   Wed Apr 24 15:11:05 2024 +0200

    add block size and index block size pebble options

commit d6428a6842a8c7d39821e74662fe3e0af34babd7
Author: Maciej Kulawik <[email protected]>
Date:   Tue Apr 23 19:39:43 2024 +0200

    add pebble layers extra options

commit 9e62e652e211a47ad1c71a428b4a7ea6b96ae710
Author: Maciej Kulawik <[email protected]>
Date:   Mon Apr 22 16:20:18 2024 +0200

    fix lint err

commit 935cb216402c9693faf86d75a7fbb045109ed4a3
Author: Maciej Kulawik <[email protected]>
Date:   Sat Apr 20 02:24:38 2024 +0200

    expose more pebble open options, add compact/debt and compact/inprogress metrics
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magicxyyz authored and sebastianst committed May 23, 2024
1 parent 966c435 commit 46757f3
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Showing 4 changed files with 201 additions and 32 deletions.
10 changes: 6 additions & 4 deletions core/rawdb/database.go
Original file line number Diff line number Diff line change
Expand Up @@ -324,8 +324,8 @@ func NewLevelDBDatabase(file string, cache int, handles int, namespace string, r

// NewPebbleDBDatabase creates a persistent key-value database without a freezer
// moving immutable chain segments into cold storage.
func NewPebbleDBDatabase(file string, cache int, handles int, namespace string, readonly, ephemeral bool) (ethdb.Database, error) {
db, err := pebble.New(file, cache, handles, namespace, readonly, ephemeral)
func NewPebbleDBDatabase(file string, cache int, handles int, namespace string, readonly, ephemeral bool, extraOptions *pebble.ExtraOptions) (ethdb.Database, error) {
db, err := pebble.New(file, cache, handles, namespace, readonly, ephemeral, extraOptions)
if err != nil {
return nil, err
}
Expand Down Expand Up @@ -366,6 +366,8 @@ type OpenOptions struct {
// Ephemeral means that filesystem sync operations should be avoided: data integrity in the face of
// a crash is not important. This option should typically be used in tests.
Ephemeral bool

PebbleExtraOptions *pebble.ExtraOptions
}

// openKeyValueDatabase opens a disk-based key-value database, e.g. leveldb or pebble.
Expand All @@ -387,15 +389,15 @@ func openKeyValueDatabase(o OpenOptions) (ethdb.Database, error) {
}
if o.Type == dbPebble || existingDb == dbPebble {
log.Info("Using pebble as the backing database")
return NewPebbleDBDatabase(o.Directory, o.Cache, o.Handles, o.Namespace, o.ReadOnly, o.Ephemeral)
return NewPebbleDBDatabase(o.Directory, o.Cache, o.Handles, o.Namespace, o.ReadOnly, o.Ephemeral, o.PebbleExtraOptions)
}
if o.Type == dbLeveldb || existingDb == dbLeveldb {
log.Info("Using leveldb as the backing database")
return NewLevelDBDatabase(o.Directory, o.Cache, o.Handles, o.Namespace, o.ReadOnly)
}
// No pre-existing database, no user-requested one either. Default to Pebble.
log.Info("Defaulting to pebble as the backing database")
return NewPebbleDBDatabase(o.Directory, o.Cache, o.Handles, o.Namespace, o.ReadOnly, o.Ephemeral)
return NewPebbleDBDatabase(o.Directory, o.Cache, o.Handles, o.Namespace, o.ReadOnly, o.Ephemeral, o.PebbleExtraOptions)
}

// Open opens both a disk-based key-value database such as leveldb or pebble, but also
Expand Down
35 changes: 35 additions & 0 deletions ethdb/pebble/extraoptions.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,35 @@
package pebble

import "time"

type ExtraOptions struct {
BytesPerSync int
L0CompactionFileThreshold int
L0CompactionThreshold int
L0StopWritesThreshold int
LBaseMaxBytes int64
MemTableStopWritesThreshold int
MaxConcurrentCompactions func() int
DisableAutomaticCompactions bool
WALBytesPerSync int
WALDir string
WALMinSyncInterval func() time.Duration
TargetByteDeletionRate int
Experimental ExtraOptionsExperimental
Levels []ExtraLevelOptions
}

type ExtraOptionsExperimental struct {
L0CompactionConcurrency int
CompactionDebtConcurrency uint64
ReadCompactionRate int64
ReadSamplingMultiplier int64
MaxWriterConcurrency int
ForceWriterParallelism bool
}

type ExtraLevelOptions struct {
BlockSize int
IndexBlockSize int
TargetFileSize int64
}
151 changes: 136 additions & 15 deletions ethdb/pebble/pebble.go
Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,25 @@ type Database struct {
seekCompGauge metrics.Gauge // Gauge for tracking the number of table compaction caused by read opt
manualMemAllocGauge metrics.Gauge // Gauge for tracking amount of non-managed memory currently allocated

compDebtGauge metrics.Gauge
compInProgressGauge metrics.Gauge

commitCountMeter metrics.Meter
commitTotalDurationMeter metrics.Meter
commitSemaphoreWaitMeter metrics.Meter
commitMemTableWriteStallMeter metrics.Meter
commitL0ReadAmpWriteStallMeter metrics.Meter
commitWALRotationMeter metrics.Meter
commitWaitMeter metrics.Meter

commitCount atomic.Int64
commitTotalDuration atomic.Int64
commitSemaphoreWait atomic.Int64
commitMemTableWriteStall atomic.Int64
commitL0ReadAmpWriteStall atomic.Int64
commitWALRotation atomic.Int64
commitWait atomic.Int64

levelsGauge []metrics.Gauge // Gauge for tracking the number of tables in levels

quitLock sync.RWMutex // Mutex protecting the quit channel and the closed flag
Expand Down Expand Up @@ -135,7 +154,38 @@ func (l panicLogger) Fatalf(format string, args ...interface{}) {

// New returns a wrapped pebble DB object. The namespace is the prefix that the
// metrics reporting should use for surfacing internal stats.
func New(file string, cache int, handles int, namespace string, readonly bool, ephemeral bool) (*Database, error) {
func New(file string, cache int, handles int, namespace string, readonly bool, ephemeral bool, extraOptions *ExtraOptions) (*Database, error) {
if extraOptions == nil {
extraOptions = &ExtraOptions{}
}
if extraOptions.MemTableStopWritesThreshold <= 0 {
extraOptions.MemTableStopWritesThreshold = 2
}
if extraOptions.MaxConcurrentCompactions == nil {
extraOptions.MaxConcurrentCompactions = func() int { return runtime.NumCPU() }
}
var levels []pebble.LevelOptions
if len(extraOptions.Levels) == 0 {
levels = []pebble.LevelOptions{
{TargetFileSize: 2 * 1024 * 1024, FilterPolicy: bloom.FilterPolicy(10)},
{TargetFileSize: 2 * 1024 * 1024, FilterPolicy: bloom.FilterPolicy(10)},
{TargetFileSize: 2 * 1024 * 1024, FilterPolicy: bloom.FilterPolicy(10)},
{TargetFileSize: 2 * 1024 * 1024, FilterPolicy: bloom.FilterPolicy(10)},
{TargetFileSize: 2 * 1024 * 1024, FilterPolicy: bloom.FilterPolicy(10)},
{TargetFileSize: 2 * 1024 * 1024, FilterPolicy: bloom.FilterPolicy(10)},
{TargetFileSize: 2 * 1024 * 1024, FilterPolicy: bloom.FilterPolicy(10)},
}
} else {
for _, level := range extraOptions.Levels {
levels = append(levels, pebble.LevelOptions{
BlockSize: level.BlockSize,
IndexBlockSize: level.IndexBlockSize,
TargetFileSize: level.TargetFileSize,
FilterPolicy: bloom.FilterPolicy(10),
})
}
}

// Ensure we have some minimal caching and file guarantees
if cache < minCache {
cache = minCache
Expand All @@ -160,7 +210,7 @@ func New(file string, cache int, handles int, namespace string, readonly bool, e

// Two memory tables is configured which is identical to leveldb,
// including a frozen memory table and another live one.
memTableLimit := 2
memTableLimit := extraOptions.MemTableStopWritesThreshold
memTableSize := cache * 1024 * 1024 / 2 / memTableLimit

// The memory table size is currently capped at maxMemTableSize-1 due to a
Expand Down Expand Up @@ -198,19 +248,11 @@ func New(file string, cache int, handles int, namespace string, readonly bool, e

// The default compaction concurrency(1 thread),
// Here use all available CPUs for faster compaction.
MaxConcurrentCompactions: func() int { return runtime.NumCPU() },
MaxConcurrentCompactions: extraOptions.MaxConcurrentCompactions,

// Per-level options. Options for at least one level must be specified. The
// options for the last level are used for all subsequent levels.
Levels: []pebble.LevelOptions{
{TargetFileSize: 2 * 1024 * 1024, FilterPolicy: bloom.FilterPolicy(10)},
{TargetFileSize: 2 * 1024 * 1024, FilterPolicy: bloom.FilterPolicy(10)},
{TargetFileSize: 2 * 1024 * 1024, FilterPolicy: bloom.FilterPolicy(10)},
{TargetFileSize: 2 * 1024 * 1024, FilterPolicy: bloom.FilterPolicy(10)},
{TargetFileSize: 2 * 1024 * 1024, FilterPolicy: bloom.FilterPolicy(10)},
{TargetFileSize: 2 * 1024 * 1024, FilterPolicy: bloom.FilterPolicy(10)},
{TargetFileSize: 2 * 1024 * 1024, FilterPolicy: bloom.FilterPolicy(10)},
},
// Per-level extraOptions. Options for at least one level must be specified. The
// extraOptions for the last level are used for all subsequent levels.
Levels: levels,
ReadOnly: readonly,
EventListener: &pebble.EventListener{
CompactionBegin: db.onCompactionBegin,
Expand All @@ -219,11 +261,31 @@ func New(file string, cache int, handles int, namespace string, readonly bool, e
WriteStallEnd: db.onWriteStallEnd,
},
Logger: panicLogger{}, // TODO(karalabe): Delete when this is upstreamed in Pebble

BytesPerSync: extraOptions.BytesPerSync,
L0CompactionFileThreshold: extraOptions.L0CompactionFileThreshold,
L0CompactionThreshold: extraOptions.L0CompactionThreshold,
L0StopWritesThreshold: extraOptions.L0StopWritesThreshold,
LBaseMaxBytes: extraOptions.LBaseMaxBytes,
DisableAutomaticCompactions: extraOptions.DisableAutomaticCompactions,
WALBytesPerSync: extraOptions.WALBytesPerSync,
WALDir: extraOptions.WALDir,
WALMinSyncInterval: extraOptions.WALMinSyncInterval,
TargetByteDeletionRate: extraOptions.TargetByteDeletionRate,
}
// Disable seek compaction explicitly. Check https://github.com/ethereum/go-ethereum/pull/20130
// for more details.
opt.Experimental.ReadSamplingMultiplier = -1

if opt.Experimental.ReadSamplingMultiplier != 0 {
opt.Experimental.ReadSamplingMultiplier = extraOptions.Experimental.ReadSamplingMultiplier
}
opt.Experimental.L0CompactionConcurrency = extraOptions.Experimental.L0CompactionConcurrency
opt.Experimental.CompactionDebtConcurrency = extraOptions.Experimental.CompactionDebtConcurrency
opt.Experimental.ReadCompactionRate = extraOptions.Experimental.ReadCompactionRate
opt.Experimental.MaxWriterConcurrency = extraOptions.Experimental.MaxWriterConcurrency
opt.Experimental.ForceWriterParallelism = extraOptions.Experimental.ForceWriterParallelism

// Open the db and recover any potential corruptions
innerDB, err := pebble.Open(file, opt)
if err != nil {
Expand All @@ -245,6 +307,17 @@ func New(file string, cache int, handles int, namespace string, readonly bool, e
db.seekCompGauge = metrics.NewRegisteredGauge(namespace+"compact/seek", nil)
db.manualMemAllocGauge = metrics.NewRegisteredGauge(namespace+"memory/manualalloc", nil)

db.compDebtGauge = metrics.GetOrRegisterGauge(namespace+"compact/debt", nil)
db.compInProgressGauge = metrics.GetOrRegisterGauge(namespace+"compact/inprogress", nil)

db.commitCountMeter = metrics.GetOrRegisterMeter(namespace+"commit/counter", nil)
db.commitTotalDurationMeter = metrics.GetOrRegisterMeter(namespace+"commit/duration/total", nil)
db.commitSemaphoreWaitMeter = metrics.GetOrRegisterMeter(namespace+"commit/duration/semaphorewait", nil)
db.commitMemTableWriteStallMeter = metrics.GetOrRegisterMeter(namespace+"commit/duration/memtablewritestall", nil)
db.commitL0ReadAmpWriteStallMeter = metrics.GetOrRegisterMeter(namespace+"commit/duration/l0readampwritestall", nil)
db.commitWALRotationMeter = metrics.GetOrRegisterMeter(namespace+"commit/duration/walrotation", nil)
db.commitWaitMeter = metrics.GetOrRegisterMeter(namespace+"commit/duration/commitwait", nil)

// Start up the metrics gathering and return
go db.meter(metricsGatheringInterval, namespace)
return db, nil
Expand Down Expand Up @@ -457,6 +530,14 @@ func (d *Database) meter(refresh time.Duration, namespace string) {
compReads [2]int64

nWrites [2]int64

commitCounts [2]int64
commitTotalDurations [2]int64
commitSemaphoreWaits [2]int64
commitMemTableWriteStalls [2]int64
commitL0ReadAmpWriteStalls [2]int64
commitWALRotations [2]int64
commitWaits [2]int64
)

// Iterate ad infinitum and collect the stats
Expand All @@ -472,6 +553,14 @@ func (d *Database) meter(refresh time.Duration, namespace string) {
writeDelayTime = d.writeDelayTime.Load()
nonLevel0CompCount = int64(d.nonLevel0Comp.Load())
level0CompCount = int64(d.level0Comp.Load())

commitCount = d.commitCount.Load()
commitTotalDuration = d.commitTotalDuration.Load()
commitSemaphoreWait = d.commitSemaphoreWait.Load()
commitMemTableWriteStall = d.commitMemTableWriteStall.Load()
commitL0ReadAmpWriteStall = d.commitL0ReadAmpWriteStall.Load()
commitWALRotation = d.commitWALRotation.Load()
commitWait = d.commitWait.Load()
)
writeDelayTimes[i%2] = writeDelayTime
writeDelayCounts[i%2] = writeDelayCount
Expand Down Expand Up @@ -522,6 +611,25 @@ func (d *Database) meter(refresh time.Duration, namespace string) {
d.level0CompGauge.Update(level0CompCount)
d.seekCompGauge.Update(stats.Compact.ReadCount)

commitCounts[i%2] = commitCount
commitTotalDurations[i%2] = commitTotalDuration
commitSemaphoreWaits[i%2] = commitSemaphoreWait
commitMemTableWriteStalls[i%2] = commitMemTableWriteStall
commitL0ReadAmpWriteStalls[i%2] = commitL0ReadAmpWriteStall
commitWALRotations[i%2] = commitWALRotation
commitWaits[i%2] = commitWait

d.commitCountMeter.Mark(commitCounts[i%2] - commitCounts[(i-1)%2])
d.commitTotalDurationMeter.Mark(commitTotalDurations[i%2] - commitTotalDurations[(i-1)%2])
d.commitSemaphoreWaitMeter.Mark(commitSemaphoreWaits[i%2] - commitSemaphoreWaits[(i-1)%2])
d.commitMemTableWriteStallMeter.Mark(commitMemTableWriteStalls[i%2] - commitMemTableWriteStalls[(i-1)%2])
d.commitL0ReadAmpWriteStallMeter.Mark(commitL0ReadAmpWriteStalls[i%2] - commitL0ReadAmpWriteStalls[(i-1)%2])
d.commitWALRotationMeter.Mark(commitWALRotations[i%2] - commitWALRotations[(i-1)%2])
d.commitWaitMeter.Mark(commitWaits[i%2] - commitWaits[(i-1)%2])

d.compDebtGauge.Update(int64(stats.Compact.EstimatedDebt))
d.compInProgressGauge.Update(stats.Compact.NumInProgress)

for i, level := range stats.Levels {
// Append metrics for additional layers
if i >= len(d.levelsGauge) {
Expand Down Expand Up @@ -576,7 +684,20 @@ func (b *batch) Write() error {
if b.db.closed {
return pebble.ErrClosed
}
return b.b.Commit(b.db.writeOptions)
err := b.b.Commit(b.db.writeOptions)
if err != nil {
return err
}
stats := b.b.CommitStats()
b.db.commitCount.Add(1)
b.db.commitTotalDuration.Add(int64(stats.TotalDuration))
b.db.commitSemaphoreWait.Add(int64(stats.SemaphoreWaitDuration))
b.db.commitMemTableWriteStall.Add(int64(stats.MemTableWriteStallDuration))
b.db.commitL0ReadAmpWriteStall.Add(int64(stats.L0ReadAmpWriteStallDuration))
b.db.commitWALRotation.Add(int64(stats.WALRotationDuration))
b.db.commitWait.Add(int64(stats.CommitWaitDuration))
// TODO add metric for stats.WALQueueWaitDuration when it will be used by pebble (currently it is always 0)
return nil
}

// Reset resets the batch for reuse.
Expand Down
37 changes: 24 additions & 13 deletions node/node.go
Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,7 @@ import (
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/ethdb/pebble"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/p2p"
Expand Down Expand Up @@ -714,6 +715,10 @@ func (n *Node) EventMux() *event.TypeMux {
// previous can be found) from within the node's instance directory. If the node is
// ephemeral, a memory database is returned.
func (n *Node) OpenDatabase(name string, cache, handles int, namespace string, readonly bool) (ethdb.Database, error) {
return n.OpenDatabaseWithExtraOptions(name, cache, handles, namespace, readonly, nil)
}

func (n *Node) OpenDatabaseWithExtraOptions(name string, cache, handles int, namespace string, readonly bool, pebbleExtraOptions *pebble.ExtraOptions) (ethdb.Database, error) {
n.lock.Lock()
defer n.lock.Unlock()
if n.state == closedState {
Expand All @@ -726,12 +731,13 @@ func (n *Node) OpenDatabase(name string, cache, handles int, namespace string, r
db = rawdb.NewMemoryDatabase()
} else {
db, err = rawdb.Open(rawdb.OpenOptions{
Type: n.config.DBEngine,
Directory: n.ResolvePath(name),
Namespace: namespace,
Cache: cache,
Handles: handles,
ReadOnly: readonly,
Type: n.config.DBEngine,
Directory: n.ResolvePath(name),
Namespace: namespace,
Cache: cache,
Handles: handles,
ReadOnly: readonly,
PebbleExtraOptions: pebbleExtraOptions,
})
}

Expand All @@ -747,6 +753,10 @@ func (n *Node) OpenDatabase(name string, cache, handles int, namespace string, r
// database to immutable append-only files. If the node is an ephemeral one, a
// memory database is returned.
func (n *Node) OpenDatabaseWithFreezer(name string, cache, handles int, ancient string, namespace string, readonly bool) (ethdb.Database, error) {
return n.OpenDatabaseWithFreezerWithExtraOptions(name, cache, handles, ancient, namespace, readonly, nil)
}

func (n *Node) OpenDatabaseWithFreezerWithExtraOptions(name string, cache, handles int, ancient string, namespace string, readonly bool, pebbleExtraOptions *pebble.ExtraOptions) (ethdb.Database, error) {
n.lock.Lock()
defer n.lock.Unlock()
if n.state == closedState {
Expand All @@ -758,13 +768,14 @@ func (n *Node) OpenDatabaseWithFreezer(name string, cache, handles int, ancient
db = rawdb.NewMemoryDatabase()
} else {
db, err = rawdb.Open(rawdb.OpenOptions{
Type: n.config.DBEngine,
Directory: n.ResolvePath(name),
AncientsDirectory: n.ResolveAncient(name, ancient),
Namespace: namespace,
Cache: cache,
Handles: handles,
ReadOnly: readonly,
Type: n.config.DBEngine,
Directory: n.ResolvePath(name),
AncientsDirectory: n.ResolveAncient(name, ancient),
Namespace: namespace,
Cache: cache,
Handles: handles,
ReadOnly: readonly,
PebbleExtraOptions: pebbleExtraOptions,
})
}

Expand Down

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