mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-31 15:06:26 +00:00
wip
This commit is contained in:
Aliaksandr Valialkin
parent
edede71be8
commit
57afedbfe8
8 changed files with 493 additions and 410 deletions
|
|
@ -4,8 +4,8 @@ import (
|
|||
"context"
|
||||
"flag"
|
||||
"fmt"
|
||||
"io"
|
||||
"net/http"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"github.com/VictoriaMetrics/metrics"
|
||||
|
|
@ -62,10 +62,16 @@ func Init() {
|
|||
|
||||
var ss logstorage.StorageStats
|
||||
strg.UpdateStats(&ss)
|
||||
logger.Infof("successfully opened storage in %.3f seconds; partsCount: %d; blocksCount: %d; rowsCount: %d; sizeBytes: %d",
|
||||
time.Since(startTime).Seconds(), ss.FileParts, ss.FileBlocks, ss.FileRowsCount, ss.CompressedFileSize)
|
||||
storageMetrics = initStorageMetrics(strg)
|
||||
logger.Infof("successfully opened storage in %.3f seconds; smallParts: %d; bigParts: %d; smallPartBlocks: %d; bigPartBlocks: %d; smallPartRows: %d; bigPartRows: %d; "+
|
||||
"smallPartSize: %d bytes; bigPartSize: %d bytes",
|
||||
time.Since(startTime).Seconds(), ss.SmallParts, ss.BigParts, ss.SmallPartBlocks, ss.BigPartBlocks, ss.SmallPartRowsCount, ss.BigPartRowsCount,
|
||||
ss.CompressedSmallPartSize, ss.CompressedBigPartSize)
|
||||
|
||||
// register storage metrics
|
||||
storageMetrics = metrics.NewSet()
|
||||
storageMetrics.RegisterMetricsWriter(func(w io.Writer) {
|
||||
writeStorageMetrics(w, strg)
|
||||
})
|
||||
metrics.RegisterSet(storageMetrics)
|
||||
}
|
||||
|
||||
|
|
@ -105,112 +111,56 @@ func RunQuery(ctx context.Context, tenantIDs []logstorage.TenantID, q *logstorag
|
|||
return strg.RunQuery(ctx, tenantIDs, q, writeBlock)
|
||||
}
|
||||
|
||||
func initStorageMetrics(strg *logstorage.Storage) *metrics.Set {
|
||||
ssCache := &logstorage.StorageStats{}
|
||||
var ssCacheLock sync.Mutex
|
||||
var lastUpdateTime time.Time
|
||||
|
||||
m := func() *logstorage.StorageStats {
|
||||
ssCacheLock.Lock()
|
||||
defer ssCacheLock.Unlock()
|
||||
if time.Since(lastUpdateTime) < time.Second {
|
||||
return ssCache
|
||||
}
|
||||
func writeStorageMetrics(w io.Writer, strg *logstorage.Storage) {
|
||||
var ss logstorage.StorageStats
|
||||
strg.UpdateStats(&ss)
|
||||
ssCache = &ss
|
||||
lastUpdateTime = time.Now()
|
||||
return ssCache
|
||||
|
||||
metrics.WriteGaugeUint64(w, fmt.Sprintf(`vl_free_disk_space_bytes{path=%q}`, *storageDataPath), fs.MustGetFreeSpace(*storageDataPath))
|
||||
|
||||
isReadOnly := uint64(0)
|
||||
if ss.IsReadOnly {
|
||||
isReadOnly = 1
|
||||
}
|
||||
metrics.WriteGaugeUint64(w, fmt.Sprintf(`vl_storage_is_read_only{path=%q}`, *storageDataPath), isReadOnly)
|
||||
|
||||
ms := metrics.NewSet()
|
||||
metrics.WriteGaugeUint64(w, `vl_active_merges{type="storage/inmemory"}`, ss.InmemoryActiveMerges)
|
||||
metrics.WriteGaugeUint64(w, `vl_active_merges{type="storage/small"}`, ss.SmallPartActiveMerges)
|
||||
metrics.WriteGaugeUint64(w, `vl_active_merges{type="storage/big"}`, ss.BigPartActiveMerges)
|
||||
|
||||
ms.NewGauge(fmt.Sprintf(`vl_free_disk_space_bytes{path=%q}`, *storageDataPath), func() float64 {
|
||||
return float64(fs.MustGetFreeSpace(*storageDataPath))
|
||||
})
|
||||
ms.NewGauge(fmt.Sprintf(`vl_storage_is_read_only{path=%q}`, *storageDataPath), func() float64 {
|
||||
if m().IsReadOnly {
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
})
|
||||
|
||||
ms.NewGauge(`vl_active_merges{type="inmemory"}`, func() float64 {
|
||||
return float64(m().InmemoryActiveMerges)
|
||||
})
|
||||
ms.NewGauge(`vl_merges_total{type="inmemory"}`, func() float64 {
|
||||
return float64(m().InmemoryMergesTotal)
|
||||
})
|
||||
ms.NewGauge(`vl_active_merges{type="file"}`, func() float64 {
|
||||
return float64(m().FileActiveMerges)
|
||||
})
|
||||
ms.NewGauge(`vl_merges_total{type="file"}`, func() float64 {
|
||||
return float64(m().FileMergesTotal)
|
||||
})
|
||||
|
||||
ms.NewGauge(`vl_storage_rows{type="inmemory"}`, func() float64 {
|
||||
return float64(m().InmemoryRowsCount)
|
||||
})
|
||||
ms.NewGauge(`vl_storage_rows{type="file"}`, func() float64 {
|
||||
return float64(m().FileRowsCount)
|
||||
})
|
||||
ms.NewGauge(`vl_storage_parts{type="inmemory"}`, func() float64 {
|
||||
return float64(m().InmemoryParts)
|
||||
})
|
||||
ms.NewGauge(`vl_storage_parts{type="file"}`, func() float64 {
|
||||
return float64(m().FileParts)
|
||||
})
|
||||
ms.NewGauge(`vl_storage_blocks{type="inmemory"}`, func() float64 {
|
||||
return float64(m().InmemoryBlocks)
|
||||
})
|
||||
ms.NewGauge(`vl_storage_blocks{type="file"}`, func() float64 {
|
||||
return float64(m().FileBlocks)
|
||||
})
|
||||
|
||||
ms.NewGauge(`vl_partitions`, func() float64 {
|
||||
return float64(m().PartitionsCount)
|
||||
})
|
||||
ms.NewGauge(`vl_streams_created_total`, func() float64 {
|
||||
return float64(m().StreamsCreatedTotal)
|
||||
})
|
||||
|
||||
ms.NewGauge(`vl_indexdb_rows`, func() float64 {
|
||||
return float64(m().IndexdbItemsCount)
|
||||
})
|
||||
ms.NewGauge(`vl_indexdb_parts`, func() float64 {
|
||||
return float64(m().IndexdbPartsCount)
|
||||
})
|
||||
ms.NewGauge(`vl_indexdb_blocks`, func() float64 {
|
||||
return float64(m().IndexdbBlocksCount)
|
||||
})
|
||||
|
||||
ms.NewGauge(`vl_data_size_bytes{type="indexdb"}`, func() float64 {
|
||||
return float64(m().IndexdbSizeBytes)
|
||||
})
|
||||
ms.NewGauge(`vl_data_size_bytes{type="storage"}`, func() float64 {
|
||||
dm := m()
|
||||
return float64(dm.CompressedInmemorySize + dm.CompressedFileSize)
|
||||
})
|
||||
|
||||
ms.NewGauge(`vl_compressed_data_size_bytes{type="inmemory"}`, func() float64 {
|
||||
return float64(m().CompressedInmemorySize)
|
||||
})
|
||||
ms.NewGauge(`vl_compressed_data_size_bytes{type="file"}`, func() float64 {
|
||||
return float64(m().CompressedFileSize)
|
||||
})
|
||||
ms.NewGauge(`vl_uncompressed_data_size_bytes{type="inmemory"}`, func() float64 {
|
||||
return float64(m().UncompressedInmemorySize)
|
||||
})
|
||||
ms.NewGauge(`vl_uncompressed_data_size_bytes{type="file"}`, func() float64 {
|
||||
return float64(m().UncompressedFileSize)
|
||||
})
|
||||
|
||||
ms.NewGauge(`vl_rows_dropped_total{reason="too_big_timestamp"}`, func() float64 {
|
||||
return float64(m().RowsDroppedTooBigTimestamp)
|
||||
})
|
||||
ms.NewGauge(`vl_rows_dropped_total{reason="too_small_timestamp"}`, func() float64 {
|
||||
return float64(m().RowsDroppedTooSmallTimestamp)
|
||||
})
|
||||
|
||||
return ms
|
||||
metrics.WriteCounterUint64(w, `vl_merges_total{type="storage/inmemory"}`, ss.InmemoryMergesTotal)
|
||||
metrics.WriteCounterUint64(w, `vl_merges_total{type="storage/small"}`, ss.SmallPartMergesTotal)
|
||||
metrics.WriteCounterUint64(w, `vl_merges_total{type="storage/big"}`, ss.BigPartMergesTotal)
|
||||
|
||||
metrics.WriteGaugeUint64(w, `vl_storage_rows{type="storage/inmemory"}`, ss.InmemoryRowsCount)
|
||||
metrics.WriteGaugeUint64(w, `vl_storage_rows{type="storage/small"}`, ss.SmallPartRowsCount)
|
||||
metrics.WriteGaugeUint64(w, `vl_storage_rows{type="storage/big"}`, ss.BigPartRowsCount)
|
||||
|
||||
metrics.WriteGaugeUint64(w, `vl_storage_parts{type="storage/inmemory"}`, ss.InmemoryParts)
|
||||
metrics.WriteGaugeUint64(w, `vl_storage_parts{type="storage/small"}`, ss.SmallParts)
|
||||
metrics.WriteGaugeUint64(w, `vl_storage_parts{type="storage/big"}`, ss.BigParts)
|
||||
|
||||
metrics.WriteGaugeUint64(w, `vl_storage_blocks{type="storage/inmemory"}`, ss.InmemoryBlocks)
|
||||
metrics.WriteGaugeUint64(w, `vl_storage_blocks{type="storage/small"}`, ss.SmallPartBlocks)
|
||||
metrics.WriteGaugeUint64(w, `vl_storage_blocks{type="storage/big"}`, ss.BigPartBlocks)
|
||||
|
||||
metrics.WriteGaugeUint64(w, `vl_partitions`, ss.PartitionsCount)
|
||||
metrics.WriteCounterUint64(w, `vl_streams_created_total`, ss.StreamsCreatedTotal)
|
||||
|
||||
metrics.WriteGaugeUint64(w, `vl_indexdb_rows`, ss.IndexdbItemsCount)
|
||||
metrics.WriteGaugeUint64(w, `vl_indexdb_parts`, ss.IndexdbPartsCount)
|
||||
metrics.WriteGaugeUint64(w, `vl_indexdb_blocks`, ss.IndexdbBlocksCount)
|
||||
|
||||
metrics.WriteGaugeUint64(w, `vl_data_size_bytes{type="indexdb"}`, ss.IndexdbSizeBytes)
|
||||
metrics.WriteGaugeUint64(w, `vl_data_size_bytes{type="storage"}`, ss.CompressedInmemorySize+ss.CompressedSmallPartSize+ss.CompressedBigPartSize)
|
||||
|
||||
metrics.WriteGaugeUint64(w, `vl_compressed_data_size_bytes{type="storage/inmemory"}`, ss.CompressedInmemorySize)
|
||||
metrics.WriteGaugeUint64(w, `vl_compressed_data_size_bytes{type="storage/small"}`, ss.CompressedSmallPartSize)
|
||||
metrics.WriteGaugeUint64(w, `vl_compressed_data_size_bytes{type="storage/big"}`, ss.CompressedBigPartSize)
|
||||
|
||||
metrics.WriteGaugeUint64(w, `vl_uncompressed_data_size_bytes{type="storage/inmemory"}`, ss.UncompressedInmemorySize)
|
||||
metrics.WriteGaugeUint64(w, `vl_uncompressed_data_size_bytes{type="storage/small"}`, ss.UncompressedSmallPartSize)
|
||||
metrics.WriteGaugeUint64(w, `vl_uncompressed_data_size_bytes{type="storage/big"}`, ss.UncompressedBigPartSize)
|
||||
|
||||
metrics.WriteCounterUint64(w, `vl_rows_dropped_total{reason="too_big_timestamp"}`, ss.RowsDroppedTooBigTimestamp)
|
||||
metrics.WriteCounterUint64(w, `vl_rows_dropped_total{reason="too_small_timestamp"}`, ss.RowsDroppedTooSmallTimestamp)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -520,7 +520,7 @@ func areSameFieldsInRows(rows [][]Field) bool {
|
|||
fields := rows[0]
|
||||
|
||||
// Verify that all the field names are unique
|
||||
m := make(map[string]struct{}, len(fields))
|
||||
m := getFieldsSet()
|
||||
for i := range fields {
|
||||
f := &fields[i]
|
||||
if _, ok := m[f.Name]; ok {
|
||||
|
|
@ -529,6 +529,7 @@ func areSameFieldsInRows(rows [][]Field) bool {
|
|||
}
|
||||
m[f.Name] = struct{}{}
|
||||
}
|
||||
putFieldsSet(m)
|
||||
|
||||
// Verify that all the fields are the same across rows
|
||||
rows = rows[1:]
|
||||
|
|
@ -546,6 +547,21 @@ func areSameFieldsInRows(rows [][]Field) bool {
|
|||
return true
|
||||
}
|
||||
|
||||
func getFieldsSet() map[string]struct{} {
|
||||
v := fieldsSetPool.Get()
|
||||
if v == nil {
|
||||
return make(map[string]struct{})
|
||||
}
|
||||
return v.(map[string]struct{})
|
||||
}
|
||||
|
||||
func putFieldsSet(m map[string]struct{}) {
|
||||
clear(m)
|
||||
fieldsSetPool.Put(m)
|
||||
}
|
||||
|
||||
var fieldsSetPool sync.Pool
|
||||
|
||||
var columnIdxsPool sync.Pool
|
||||
|
||||
func getColumnIdxs() map[string]int {
|
||||
|
|
|
|||
|
|
@ -17,6 +17,16 @@ import (
|
|||
"github.com/VictoriaMetrics/VictoriaMetrics/lib/memory"
|
||||
)
|
||||
|
||||
// The maximum size of big part.
|
||||
//
|
||||
// This number limits the maximum time required for building big part.
|
||||
// This time shouldn't exceed a few days.
|
||||
const maxBigPartSize = 1e12
|
||||
|
||||
// The interval for guaranteed flush of recently ingested data from memory to on-disk parts,
|
||||
// so they survive process crash.
|
||||
var dataFlushInterval = 5 * time.Second
|
||||
|
||||
// Default number of parts to merge at once.
|
||||
//
|
||||
// This number has been obtained empirically - it gives the lowest possible overhead.
|
||||
|
|
@ -43,8 +53,12 @@ type datadb struct {
|
|||
|
||||
inmemoryMergesTotal atomic.Uint64
|
||||
inmemoryActiveMerges atomic.Int64
|
||||
fileMergesTotal atomic.Uint64
|
||||
fileActiveMerges atomic.Int64
|
||||
|
||||
smallPartMergesTotal atomic.Uint64
|
||||
smallPartActiveMerges atomic.Int64
|
||||
|
||||
bigPartMergesTotal atomic.Uint64
|
||||
bigPartActiveMerges atomic.Int64
|
||||
|
||||
// pt is the partition the datadb belongs to
|
||||
pt *partition
|
||||
|
|
@ -58,8 +72,11 @@ type datadb struct {
|
|||
// inmemoryParts contains a list of inmemory parts
|
||||
inmemoryParts []*partWrapper
|
||||
|
||||
// fileParts contains a list of file-based parts
|
||||
fileParts []*partWrapper
|
||||
// smallParts contains a list of file-based small parts
|
||||
smallParts []*partWrapper
|
||||
|
||||
// bigParts contains a list of file-based big parts
|
||||
bigParts []*partWrapper
|
||||
|
||||
// partsLock protects parts from concurrent access
|
||||
partsLock sync.Mutex
|
||||
|
|
@ -75,16 +92,6 @@ type datadb struct {
|
|||
// It must be closed under partsLock in order to prevent from calling wg.Add()
|
||||
// after stopCh is closed.
|
||||
stopCh chan struct{}
|
||||
|
||||
// oldInmemoryPartsFlushersCount is the number of currently running flushers for old in-memory parts
|
||||
//
|
||||
// This variable must be accessed under partsLock.
|
||||
oldInmemoryPartsFlushersCount int
|
||||
|
||||
// mergeWorkersCount is the number of currently running merge workers
|
||||
//
|
||||
// This variable must be accessed under partsLock.
|
||||
mergeWorkersCount int
|
||||
}
|
||||
|
||||
// partWrapper is a wrapper for opened part.
|
||||
|
|
@ -140,7 +147,7 @@ func (pw *partWrapper) decRef() {
|
|||
|
||||
func mustCreateDatadb(path string) {
|
||||
fs.MustMkdirFailIfExist(path)
|
||||
mustWritePartNames(path, []string{})
|
||||
mustWritePartNames(path, nil, nil)
|
||||
}
|
||||
|
||||
// mustOpenDatadb opens datadb at the given path with the given flushInterval for in-memory data.
|
||||
|
|
@ -151,8 +158,9 @@ func mustOpenDatadb(pt *partition, path string, flushInterval time.Duration) *da
|
|||
partNames := mustReadPartNames(path)
|
||||
mustRemoveUnusedDirs(path, partNames)
|
||||
|
||||
pws := make([]*partWrapper, len(partNames))
|
||||
for i, partName := range partNames {
|
||||
var smallParts []*partWrapper
|
||||
var bigParts []*partWrapper
|
||||
for _, partName := range partNames {
|
||||
// Make sure the partName exists on disk.
|
||||
// If it is missing, then manual action from the user is needed,
|
||||
// since this is unexpected state, which cannot occur under normal operation,
|
||||
|
|
@ -166,181 +174,277 @@ func mustOpenDatadb(pt *partition, path string, flushInterval time.Duration) *da
|
|||
}
|
||||
|
||||
p := mustOpenFilePart(pt, partPath)
|
||||
pws[i] = newPartWrapper(p, nil, time.Time{})
|
||||
pw := newPartWrapper(p, nil, time.Time{})
|
||||
if p.ph.CompressedSizeBytes > getMaxInmemoryPartSize() {
|
||||
bigParts = append(bigParts, pw)
|
||||
} else {
|
||||
smallParts = append(smallParts, pw)
|
||||
}
|
||||
}
|
||||
|
||||
ddb := &datadb{
|
||||
pt: pt,
|
||||
flushInterval: flushInterval,
|
||||
path: path,
|
||||
fileParts: pws,
|
||||
smallParts: smallParts,
|
||||
bigParts: bigParts,
|
||||
stopCh: make(chan struct{}),
|
||||
}
|
||||
ddb.mergeIdx.Store(uint64(time.Now().UnixNano()))
|
||||
|
||||
// Start merge workers in the hope they'll merge the remaining parts
|
||||
ddb.partsLock.Lock()
|
||||
n := getMergeWorkersCount()
|
||||
for i := 0; i < n; i++ {
|
||||
ddb.startMergeWorkerLocked()
|
||||
}
|
||||
ddb.partsLock.Unlock()
|
||||
ddb.startBackgroundWorkers()
|
||||
|
||||
return ddb
|
||||
}
|
||||
|
||||
// startOldInmemoryPartsFlusherLocked starts flusher for old in-memory parts to disk.
|
||||
//
|
||||
// This function must be called under partsLock.
|
||||
func (ddb *datadb) startOldInmemoryPartsFlusherLocked() {
|
||||
func (ddb *datadb) startBackgroundWorkers() {
|
||||
// Start file parts mergers, so they could start merging unmerged parts if needed.
|
||||
// There is no need in starting in-memory parts mergers, since there are no in-memory parts yet.
|
||||
ddb.startSmallPartsMergers()
|
||||
ddb.startBigPartsMergers()
|
||||
|
||||
ddb.startInmemoryPartsFlusher()
|
||||
}
|
||||
|
||||
var (
|
||||
inmemoryPartsConcurrencyCh = make(chan struct{}, cgroup.AvailableCPUs())
|
||||
smallPartsConcurrencyCh = make(chan struct{}, cgroup.AvailableCPUs())
|
||||
bigPartsConcurrencyCh = make(chan struct{}, cgroup.AvailableCPUs())
|
||||
)
|
||||
|
||||
func (ddb *datadb) startSmallPartsMergers() {
|
||||
ddb.partsLock.Lock()
|
||||
for i := 0; i < cap(smallPartsConcurrencyCh); i++ {
|
||||
ddb.startSmallPartsMergerLocked()
|
||||
}
|
||||
ddb.partsLock.Unlock()
|
||||
}
|
||||
|
||||
func (ddb *datadb) startBigPartsMergers() {
|
||||
ddb.partsLock.Lock()
|
||||
for i := 0; i < cap(bigPartsConcurrencyCh); i++ {
|
||||
ddb.startBigPartsMergerLocked()
|
||||
}
|
||||
ddb.partsLock.Unlock()
|
||||
}
|
||||
|
||||
func (ddb *datadb) startInmemoryPartsMergerLocked() {
|
||||
if needStop(ddb.stopCh) {
|
||||
return
|
||||
}
|
||||
maxWorkers := getMergeWorkersCount()
|
||||
if ddb.oldInmemoryPartsFlushersCount >= maxWorkers {
|
||||
return
|
||||
}
|
||||
ddb.oldInmemoryPartsFlushersCount++
|
||||
ddb.wg.Add(1)
|
||||
go func() {
|
||||
ddb.flushOldInmemoryParts()
|
||||
ddb.inmemoryPartsMerger()
|
||||
ddb.wg.Done()
|
||||
}()
|
||||
}
|
||||
|
||||
func (ddb *datadb) flushOldInmemoryParts() {
|
||||
ticker := time.NewTicker(time.Second)
|
||||
defer ticker.Stop()
|
||||
var parts, partsToMerge []*partWrapper
|
||||
|
||||
for !needStop(ddb.stopCh) {
|
||||
ddb.partsLock.Lock()
|
||||
parts = appendNotInMergePartsLocked(parts[:0], ddb.inmemoryParts)
|
||||
currentTime := time.Now()
|
||||
partsToFlush := parts[:0]
|
||||
for _, pw := range parts {
|
||||
if pw.flushDeadline.Before(currentTime) {
|
||||
partsToFlush = append(partsToFlush, pw)
|
||||
}
|
||||
}
|
||||
// Do not take into account available disk space when flushing in-memory parts to disk,
|
||||
// since otherwise the outdated in-memory parts may remain in-memory, which, in turn,
|
||||
// may result in increased memory usage plus possible loss of historical data.
|
||||
// It is better to crash on out of disk error in this case.
|
||||
partsToMerge = appendPartsToMerge(partsToMerge[:0], partsToFlush, math.MaxUint64)
|
||||
if len(partsToMerge) == 0 {
|
||||
partsToMerge = append(partsToMerge[:0], partsToFlush...)
|
||||
}
|
||||
setInMergeLocked(partsToMerge)
|
||||
needStop := false
|
||||
if len(ddb.inmemoryParts) == 0 {
|
||||
// There are no in-memory parts, so stop the flusher.
|
||||
needStop = true
|
||||
ddb.oldInmemoryPartsFlushersCount--
|
||||
}
|
||||
ddb.partsLock.Unlock()
|
||||
|
||||
if needStop {
|
||||
func (ddb *datadb) startSmallPartsMergerLocked() {
|
||||
if needStop(ddb.stopCh) {
|
||||
return
|
||||
}
|
||||
|
||||
ddb.mustMergeParts(partsToMerge, true)
|
||||
if len(partsToMerge) < len(partsToFlush) {
|
||||
// Continue merging remaining old in-memory parts from partsToFlush list.
|
||||
continue
|
||||
ddb.wg.Add(1)
|
||||
go func() {
|
||||
ddb.smallPartsMerger()
|
||||
ddb.wg.Done()
|
||||
}()
|
||||
}
|
||||
|
||||
// There are no old in-memory parts to flush. Sleep for a while until these parts appear.
|
||||
func (ddb *datadb) startBigPartsMergerLocked() {
|
||||
if needStop(ddb.stopCh) {
|
||||
return
|
||||
}
|
||||
ddb.wg.Add(1)
|
||||
go func() {
|
||||
ddb.bigPartsMerger()
|
||||
ddb.wg.Done()
|
||||
}()
|
||||
}
|
||||
|
||||
func (ddb *datadb) startInmemoryPartsFlusher() {
|
||||
ddb.wg.Add(1)
|
||||
go func() {
|
||||
ddb.inmemoryPartsFlusher()
|
||||
ddb.wg.Done()
|
||||
}()
|
||||
}
|
||||
|
||||
func (ddb *datadb) inmemoryPartsFlusher() {
|
||||
// Do not add jitter to d in order to guarantee the flush interval
|
||||
ticker := time.NewTicker(dataFlushInterval)
|
||||
defer ticker.Stop()
|
||||
for {
|
||||
select {
|
||||
case <-ddb.stopCh:
|
||||
return
|
||||
case <-ticker.C:
|
||||
ddb.mustFlushInmemoryPartsToFiles(false)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// startMergeWorkerLocked starts a merge worker.
|
||||
//
|
||||
// This function must be called under locked partsLock.
|
||||
func (ddb *datadb) startMergeWorkerLocked() {
|
||||
if needStop(ddb.stopCh) {
|
||||
return
|
||||
}
|
||||
maxWorkers := getMergeWorkersCount()
|
||||
if ddb.mergeWorkersCount >= maxWorkers {
|
||||
return
|
||||
}
|
||||
ddb.mergeWorkersCount++
|
||||
ddb.wg.Add(1)
|
||||
go func() {
|
||||
globalMergeLimitCh <- struct{}{}
|
||||
ddb.mustMergeExistingParts()
|
||||
<-globalMergeLimitCh
|
||||
ddb.wg.Done()
|
||||
}()
|
||||
}
|
||||
|
||||
// globalMergeLimitCh limits the number of concurrent merges across all the partitions
|
||||
var globalMergeLimitCh = make(chan struct{}, getMergeWorkersCount())
|
||||
|
||||
func getMergeWorkersCount() int {
|
||||
n := cgroup.AvailableCPUs()
|
||||
if n < 4 {
|
||||
// Use bigger number of workers on systems with small number of CPU cores,
|
||||
// since a single worker may become busy for long time when merging big parts.
|
||||
// Then the remaining workers may continue performing merges
|
||||
// for newly added small parts.
|
||||
return 4
|
||||
}
|
||||
return n
|
||||
}
|
||||
|
||||
func (ddb *datadb) mustMergeExistingParts() {
|
||||
for !needStop(ddb.stopCh) {
|
||||
maxOutBytes := availableDiskSpace(ddb.path)
|
||||
func (ddb *datadb) mustFlushInmemoryPartsToFiles(isFinal bool) {
|
||||
currentTime := time.Now()
|
||||
var pws []*partWrapper
|
||||
|
||||
ddb.partsLock.Lock()
|
||||
parts := make([]*partWrapper, 0, len(ddb.inmemoryParts)+len(ddb.fileParts))
|
||||
parts = appendNotInMergePartsLocked(parts, ddb.inmemoryParts)
|
||||
parts = appendNotInMergePartsLocked(parts, ddb.fileParts)
|
||||
pws := appendPartsToMerge(nil, parts, maxOutBytes)
|
||||
setInMergeLocked(pws)
|
||||
if len(pws) == 0 {
|
||||
ddb.mergeWorkersCount--
|
||||
for _, pw := range ddb.inmemoryParts {
|
||||
if !pw.isInMerge && (isFinal || pw.flushDeadline.Before(currentTime)) {
|
||||
pw.isInMerge = true
|
||||
pws = append(pws, pw)
|
||||
}
|
||||
}
|
||||
ddb.partsLock.Unlock()
|
||||
|
||||
ddb.mustMergePartsToFiles(pws)
|
||||
}
|
||||
|
||||
func (ddb *datadb) mustMergePartsToFiles(pws []*partWrapper) {
|
||||
wg := getWaitGroup()
|
||||
for len(pws) > 0 {
|
||||
pwsToMerge, pwsRemaining := getPartsForOptimalMerge(pws)
|
||||
wg.Add(1)
|
||||
inmemoryPartsConcurrencyCh <- struct{}{}
|
||||
go func(pwsChunk []*partWrapper) {
|
||||
defer func() {
|
||||
<-inmemoryPartsConcurrencyCh
|
||||
wg.Done()
|
||||
}()
|
||||
|
||||
ddb.mustMergeParts(pwsChunk, true)
|
||||
}(pwsToMerge)
|
||||
pws = pwsRemaining
|
||||
}
|
||||
wg.Wait()
|
||||
putWaitGroup(wg)
|
||||
}
|
||||
|
||||
// getPartsForOptimalMerge returns parts from pws for optimal merge, plus the remaining parts.
|
||||
//
|
||||
// the pws items are replaced by nil after the call. This is needed for helping Go GC to reclaim the referenced items.
|
||||
func getPartsForOptimalMerge(pws []*partWrapper) ([]*partWrapper, []*partWrapper) {
|
||||
pwsToMerge := appendPartsToMerge(nil, pws, math.MaxUint64)
|
||||
if len(pwsToMerge) == 0 {
|
||||
return pws, nil
|
||||
}
|
||||
|
||||
m := partsToMap(pwsToMerge)
|
||||
pwsRemaining := make([]*partWrapper, 0, len(pws)-len(pwsToMerge))
|
||||
for _, pw := range pws {
|
||||
if _, ok := m[pw]; !ok {
|
||||
pwsRemaining = append(pwsRemaining, pw)
|
||||
}
|
||||
}
|
||||
|
||||
// Clear references to pws items, so they could be reclaimed faster by Go GC.
|
||||
for i := range pws {
|
||||
pws[i] = nil
|
||||
}
|
||||
|
||||
return pwsToMerge, pwsRemaining
|
||||
}
|
||||
|
||||
func getWaitGroup() *sync.WaitGroup {
|
||||
v := wgPool.Get()
|
||||
if v == nil {
|
||||
return &sync.WaitGroup{}
|
||||
}
|
||||
return v.(*sync.WaitGroup)
|
||||
}
|
||||
|
||||
func putWaitGroup(wg *sync.WaitGroup) {
|
||||
wgPool.Put(wg)
|
||||
}
|
||||
|
||||
var wgPool sync.Pool
|
||||
|
||||
func (ddb *datadb) inmemoryPartsMerger() {
|
||||
for {
|
||||
if needStop(ddb.stopCh) {
|
||||
return
|
||||
}
|
||||
maxOutBytes := ddb.getMaxBigPartSize()
|
||||
|
||||
ddb.partsLock.Lock()
|
||||
pws := getPartsToMergeLocked(ddb.inmemoryParts, maxOutBytes)
|
||||
ddb.partsLock.Unlock()
|
||||
|
||||
if len(pws) == 0 {
|
||||
// Nothing to merge at the moment.
|
||||
// Nothing to merge
|
||||
return
|
||||
}
|
||||
|
||||
inmemoryPartsConcurrencyCh <- struct{}{}
|
||||
ddb.mustMergeParts(pws, false)
|
||||
<-inmemoryPartsConcurrencyCh
|
||||
}
|
||||
}
|
||||
|
||||
// appendNotInMergePartsLocked appends src parts with isInMerge=false to dst and returns the result.
|
||||
//
|
||||
// This function must be called under partsLock.
|
||||
func appendNotInMergePartsLocked(dst, src []*partWrapper) []*partWrapper {
|
||||
for _, pw := range src {
|
||||
if !pw.isInMerge {
|
||||
dst = append(dst, pw)
|
||||
func (ddb *datadb) smallPartsMerger() {
|
||||
for {
|
||||
if needStop(ddb.stopCh) {
|
||||
return
|
||||
}
|
||||
}
|
||||
return dst
|
||||
maxOutBytes := ddb.getMaxBigPartSize()
|
||||
|
||||
ddb.partsLock.Lock()
|
||||
pws := getPartsToMergeLocked(ddb.smallParts, maxOutBytes)
|
||||
ddb.partsLock.Unlock()
|
||||
|
||||
if len(pws) == 0 {
|
||||
// Nothing to merge
|
||||
return
|
||||
}
|
||||
|
||||
// setInMergeLocked sets isInMerge flag for pws.
|
||||
smallPartsConcurrencyCh <- struct{}{}
|
||||
ddb.mustMergeParts(pws, false)
|
||||
<-smallPartsConcurrencyCh
|
||||
}
|
||||
}
|
||||
|
||||
func (ddb *datadb) bigPartsMerger() {
|
||||
for {
|
||||
if needStop(ddb.stopCh) {
|
||||
return
|
||||
}
|
||||
maxOutBytes := ddb.getMaxBigPartSize()
|
||||
|
||||
ddb.partsLock.Lock()
|
||||
pws := getPartsToMergeLocked(ddb.bigParts, maxOutBytes)
|
||||
ddb.partsLock.Unlock()
|
||||
|
||||
if len(pws) == 0 {
|
||||
// Nothing to merge
|
||||
return
|
||||
}
|
||||
|
||||
bigPartsConcurrencyCh <- struct{}{}
|
||||
ddb.mustMergeParts(pws, false)
|
||||
<-bigPartsConcurrencyCh
|
||||
}
|
||||
}
|
||||
|
||||
// getPartsToMergeLocked returns optimal parts to merge from pws.
|
||||
//
|
||||
// This function must be called under partsLock.
|
||||
func setInMergeLocked(pws []*partWrapper) {
|
||||
// The summary size of the returned parts must be smaller than maxOutBytes.
|
||||
func getPartsToMergeLocked(pws []*partWrapper, maxOutBytes uint64) []*partWrapper {
|
||||
pwsRemaining := make([]*partWrapper, 0, len(pws))
|
||||
for _, pw := range pws {
|
||||
if !pw.isInMerge {
|
||||
pwsRemaining = append(pwsRemaining, pw)
|
||||
}
|
||||
}
|
||||
|
||||
pwsToMerge := appendPartsToMerge(nil, pwsRemaining, maxOutBytes)
|
||||
|
||||
for _, pw := range pwsToMerge {
|
||||
if pw.isInMerge {
|
||||
logger.Panicf("BUG: partWrapper.isInMerge unexpectedly set to true")
|
||||
logger.Panicf("BUG: partWrapper.isInMerge cannot be set")
|
||||
}
|
||||
pw.isInMerge = true
|
||||
}
|
||||
|
||||
return pwsToMerge
|
||||
}
|
||||
|
||||
func assertIsInMerge(pws []*partWrapper) {
|
||||
|
|
@ -370,7 +474,7 @@ func (ddb *datadb) mustMergeParts(pws []*partWrapper, isFinal bool) {
|
|||
startTime := time.Now()
|
||||
|
||||
dstPartType := ddb.getDstPartType(pws, isFinal)
|
||||
if dstPartType == partFile {
|
||||
if dstPartType != partInmemory {
|
||||
// Make sure there is enough disk space for performing the merge
|
||||
partsSize := getCompressedSize(pws)
|
||||
needReleaseDiskSpace := tryReserveDiskSpace(ddb.path, partsSize)
|
||||
|
|
@ -387,14 +491,21 @@ func (ddb *datadb) mustMergeParts(pws []*partWrapper, isFinal bool) {
|
|||
}
|
||||
}
|
||||
|
||||
if dstPartType == partInmemory {
|
||||
switch dstPartType {
|
||||
case partInmemory:
|
||||
ddb.inmemoryMergesTotal.Add(1)
|
||||
ddb.inmemoryActiveMerges.Add(1)
|
||||
defer ddb.inmemoryActiveMerges.Add(-1)
|
||||
} else {
|
||||
ddb.fileMergesTotal.Add(1)
|
||||
ddb.fileActiveMerges.Add(1)
|
||||
defer ddb.fileActiveMerges.Add(-1)
|
||||
case partSmall:
|
||||
ddb.smallPartMergesTotal.Add(1)
|
||||
ddb.smallPartActiveMerges.Add(1)
|
||||
defer ddb.smallPartActiveMerges.Add(-1)
|
||||
case partBig:
|
||||
ddb.bigPartMergesTotal.Add(1)
|
||||
ddb.bigPartActiveMerges.Add(1)
|
||||
defer ddb.bigPartActiveMerges.Add(-1)
|
||||
default:
|
||||
logger.Panicf("BUG: unknown partType=%d", dstPartType)
|
||||
}
|
||||
|
||||
// Initialize destination paths.
|
||||
|
|
@ -428,7 +539,7 @@ func (ddb *datadb) mustMergeParts(pws []*partWrapper, isFinal bool) {
|
|||
mpNew = getInmemoryPart()
|
||||
bsw.MustInitForInmemoryPart(mpNew)
|
||||
} else {
|
||||
nocache := !shouldUsePageCacheForPartSize(srcSize)
|
||||
nocache := dstPartType == partBig
|
||||
bsw.MustInitForFilePart(dstPartPath, nocache)
|
||||
}
|
||||
|
||||
|
|
@ -455,7 +566,7 @@ func (ddb *datadb) mustMergeParts(pws []*partWrapper, isFinal bool) {
|
|||
}
|
||||
if needStop(stopCh) {
|
||||
// Remove incomplete destination part
|
||||
if dstPartType == partFile {
|
||||
if dstPartType != partInmemory {
|
||||
fs.MustRemoveAll(dstPartPath)
|
||||
}
|
||||
return
|
||||
|
|
@ -477,7 +588,7 @@ func (ddb *datadb) mustMergeParts(pws []*partWrapper, isFinal bool) {
|
|||
ddb.swapSrcWithDstParts(pws, pwNew, dstPartType)
|
||||
|
||||
d := time.Since(startTime)
|
||||
if d <= 30*time.Second {
|
||||
if d <= time.Minute {
|
||||
return
|
||||
}
|
||||
|
||||
|
|
@ -496,21 +607,22 @@ type partType int
|
|||
|
||||
var (
|
||||
partInmemory = partType(0)
|
||||
partFile = partType(1)
|
||||
partSmall = partType(1)
|
||||
partBig = partType(2)
|
||||
)
|
||||
|
||||
func (ddb *datadb) getDstPartType(pws []*partWrapper, isFinal bool) partType {
|
||||
if isFinal {
|
||||
return partFile
|
||||
}
|
||||
dstPartSize := getCompressedSize(pws)
|
||||
if dstPartSize > getMaxInmemoryPartSize() {
|
||||
return partFile
|
||||
if dstPartSize > ddb.getMaxSmallPartSize() {
|
||||
return partBig
|
||||
}
|
||||
if isFinal || dstPartSize > getMaxInmemoryPartSize() {
|
||||
return partSmall
|
||||
}
|
||||
if !areAllInmemoryParts(pws) {
|
||||
// If at least a single source part is located in file,
|
||||
// then the destination part must be in file for durability reasons.
|
||||
return partFile
|
||||
return partSmall
|
||||
}
|
||||
return partInmemory
|
||||
}
|
||||
|
|
@ -560,45 +672,8 @@ func (ddb *datadb) mustAddRows(lr *LogRows) {
|
|||
|
||||
ddb.partsLock.Lock()
|
||||
ddb.inmemoryParts = append(ddb.inmemoryParts, pw)
|
||||
ddb.startOldInmemoryPartsFlusherLocked()
|
||||
if len(ddb.inmemoryParts) > defaultPartsToMerge {
|
||||
ddb.startMergeWorkerLocked()
|
||||
}
|
||||
needAssistedMerge := ddb.needAssistedMergeForInmemoryPartsLocked()
|
||||
ddb.startInmemoryPartsMergerLocked()
|
||||
ddb.partsLock.Unlock()
|
||||
|
||||
if needAssistedMerge {
|
||||
ddb.assistedMergeForInmemoryParts()
|
||||
}
|
||||
}
|
||||
|
||||
func (ddb *datadb) needAssistedMergeForInmemoryPartsLocked() bool {
|
||||
if len(ddb.inmemoryParts) < maxInmemoryPartsPerPartition {
|
||||
return false
|
||||
}
|
||||
n := 0
|
||||
for _, pw := range ddb.inmemoryParts {
|
||||
if !pw.isInMerge {
|
||||
n++
|
||||
}
|
||||
}
|
||||
return n >= defaultPartsToMerge
|
||||
}
|
||||
|
||||
func (ddb *datadb) assistedMergeForInmemoryParts() {
|
||||
ddb.partsLock.Lock()
|
||||
parts := make([]*partWrapper, 0, len(ddb.inmemoryParts))
|
||||
parts = appendNotInMergePartsLocked(parts, ddb.inmemoryParts)
|
||||
// Do not take into account available disk space when merging in-memory parts,
|
||||
// since otherwise the outdated in-memory parts may remain in-memory, which, in turn,
|
||||
// may result in increased memory usage plus possible loss of historical data.
|
||||
// It is better to crash on out of disk error in this case.
|
||||
pws := make([]*partWrapper, 0, len(parts))
|
||||
pws = appendPartsToMerge(pws[:0], parts, math.MaxUint64)
|
||||
setInMergeLocked(pws)
|
||||
ddb.partsLock.Unlock()
|
||||
|
||||
ddb.mustMergeParts(pws, false)
|
||||
}
|
||||
|
||||
// DatadbStats contains various stats for datadb.
|
||||
|
|
@ -609,41 +684,62 @@ type DatadbStats struct {
|
|||
// InmemoryActiveMerges is the number of currently active inmemory merges performed by the given datadb.
|
||||
InmemoryActiveMerges uint64
|
||||
|
||||
// FileMergesTotal is the number of file merges performed in the given datadb.
|
||||
FileMergesTotal uint64
|
||||
// SmallPartMergesTotal is the number of small file merges performed in the given datadb.
|
||||
SmallPartMergesTotal uint64
|
||||
|
||||
// FileActiveMerges is the number of currently active file merges performed by the given datadb.
|
||||
FileActiveMerges uint64
|
||||
// SmallPartActiveMerges is the number of currently active small file merges performed by the given datadb.
|
||||
SmallPartActiveMerges uint64
|
||||
|
||||
// BigPartMergesTotal is the number of big file merges performed in the given datadb.
|
||||
BigPartMergesTotal uint64
|
||||
|
||||
// BigPartActiveMerges is the number of currently active big file merges performed by the given datadb.
|
||||
BigPartActiveMerges uint64
|
||||
|
||||
// InmemoryRowsCount is the number of rows, which weren't flushed to disk yet.
|
||||
InmemoryRowsCount uint64
|
||||
|
||||
// FileRowsCount is the number of rows stored on disk.
|
||||
FileRowsCount uint64
|
||||
// SmallPartRowsCount is the number of rows stored on disk in small parts.
|
||||
SmallPartRowsCount uint64
|
||||
|
||||
// BigPartRowsCount is the number of rows stored on disk in big parts.
|
||||
BigPartRowsCount uint64
|
||||
|
||||
// InmemoryParts is the number of in-memory parts, which weren't flushed to disk yet.
|
||||
InmemoryParts uint64
|
||||
|
||||
// FileParts is the number of file-based parts stored on disk.
|
||||
FileParts uint64
|
||||
// SmallParts is the number of file-based small parts stored on disk.
|
||||
SmallParts uint64
|
||||
|
||||
// BigParts is the number of file-based big parts stored on disk.
|
||||
BigParts uint64
|
||||
|
||||
// InmemoryBlocks is the number of in-memory blocks, which weren't flushed to disk yet.
|
||||
InmemoryBlocks uint64
|
||||
|
||||
// FileBlocks is the number of file-based blocks stored on disk.
|
||||
FileBlocks uint64
|
||||
// SmallPartBlocks is the number of file-based small blocks stored on disk.
|
||||
SmallPartBlocks uint64
|
||||
|
||||
// BigPartBlocks is the number of file-based big blocks stored on disk.
|
||||
BigPartBlocks uint64
|
||||
|
||||
// CompressedInmemorySize is the size of compressed data stored in memory.
|
||||
CompressedInmemorySize uint64
|
||||
|
||||
// CompressedFileSize is the size of compressed data stored on disk.
|
||||
CompressedFileSize uint64
|
||||
// CompressedSmallPartSize is the size of compressed small parts data stored on disk.
|
||||
CompressedSmallPartSize uint64
|
||||
|
||||
// CompressedBigPartSize is the size of compressed big data stored on disk.
|
||||
CompressedBigPartSize uint64
|
||||
|
||||
// UncompressedInmemorySize is the size of uncompressed data stored in memory.
|
||||
UncompressedInmemorySize uint64
|
||||
|
||||
// UncompressedFileSize is the size of uncompressed data stored on disk.
|
||||
UncompressedFileSize uint64
|
||||
// UncompressedSmallPartSize is the size of uncompressed small data stored on disk.
|
||||
UncompressedSmallPartSize uint64
|
||||
|
||||
// UncompressedBigPartSize is the size of uncompressed big data stored on disk.
|
||||
UncompressedBigPartSize uint64
|
||||
}
|
||||
|
||||
func (s *DatadbStats) reset() {
|
||||
|
|
@ -652,32 +748,39 @@ func (s *DatadbStats) reset() {
|
|||
|
||||
// RowsCount returns the number of rows stored in datadb.
|
||||
func (s *DatadbStats) RowsCount() uint64 {
|
||||
return s.InmemoryRowsCount + s.FileRowsCount
|
||||
return s.InmemoryRowsCount + s.SmallPartRowsCount + s.BigPartRowsCount
|
||||
}
|
||||
|
||||
// updateStats updates s with ddb stats
|
||||
// updateStats updates s with ddb stats.
|
||||
func (ddb *datadb) updateStats(s *DatadbStats) {
|
||||
s.InmemoryMergesTotal += ddb.inmemoryMergesTotal.Load()
|
||||
s.InmemoryActiveMerges += uint64(ddb.inmemoryActiveMerges.Load())
|
||||
s.FileMergesTotal += ddb.fileMergesTotal.Load()
|
||||
s.FileActiveMerges += uint64(ddb.fileActiveMerges.Load())
|
||||
s.SmallPartMergesTotal += ddb.smallPartMergesTotal.Load()
|
||||
s.SmallPartActiveMerges += uint64(ddb.smallPartActiveMerges.Load())
|
||||
s.BigPartMergesTotal += ddb.bigPartMergesTotal.Load()
|
||||
s.BigPartActiveMerges += uint64(ddb.bigPartActiveMerges.Load())
|
||||
|
||||
ddb.partsLock.Lock()
|
||||
|
||||
s.InmemoryRowsCount += getRowsCount(ddb.inmemoryParts)
|
||||
s.FileRowsCount += getRowsCount(ddb.fileParts)
|
||||
s.SmallPartRowsCount += getRowsCount(ddb.smallParts)
|
||||
s.BigPartRowsCount += getRowsCount(ddb.bigParts)
|
||||
|
||||
s.InmemoryParts += uint64(len(ddb.inmemoryParts))
|
||||
s.FileParts += uint64(len(ddb.fileParts))
|
||||
s.SmallParts += uint64(len(ddb.smallParts))
|
||||
s.BigParts += uint64(len(ddb.bigParts))
|
||||
|
||||
s.InmemoryBlocks += getBlocksCount(ddb.inmemoryParts)
|
||||
s.FileBlocks += getBlocksCount(ddb.fileParts)
|
||||
s.SmallPartBlocks += getBlocksCount(ddb.smallParts)
|
||||
s.BigPartBlocks += getBlocksCount(ddb.bigParts)
|
||||
|
||||
s.CompressedInmemorySize += getCompressedSize(ddb.inmemoryParts)
|
||||
s.CompressedFileSize += getCompressedSize(ddb.fileParts)
|
||||
s.CompressedSmallPartSize += getCompressedSize(ddb.smallParts)
|
||||
s.CompressedBigPartSize += getCompressedSize(ddb.bigParts)
|
||||
|
||||
s.UncompressedInmemorySize += getUncompressedSize(ddb.inmemoryParts)
|
||||
s.UncompressedFileSize += getUncompressedSize(ddb.fileParts)
|
||||
s.UncompressedSmallPartSize += getUncompressedSize(ddb.smallParts)
|
||||
s.UncompressedBigPartSize += getUncompressedSize(ddb.bigParts)
|
||||
|
||||
ddb.partsLock.Unlock()
|
||||
}
|
||||
|
|
@ -687,29 +790,56 @@ func (ddb *datadb) debugFlush() {
|
|||
// Nothing to do, since all the ingested data is available for search via ddb.inmemoryParts.
|
||||
}
|
||||
|
||||
func (ddb *datadb) mustFlushInmemoryPartsToDisk() {
|
||||
func (ddb *datadb) swapSrcWithDstParts(pws []*partWrapper, pwNew *partWrapper, dstPartType partType) {
|
||||
// Atomically unregister old parts and add new part to pt.
|
||||
partsToRemove := partsToMap(pws)
|
||||
|
||||
removedInmemoryParts := 0
|
||||
removedSmallParts := 0
|
||||
removedBigParts := 0
|
||||
|
||||
ddb.partsLock.Lock()
|
||||
pws := append([]*partWrapper{}, ddb.inmemoryParts...)
|
||||
setInMergeLocked(pws)
|
||||
|
||||
ddb.inmemoryParts, removedInmemoryParts = removeParts(ddb.inmemoryParts, partsToRemove)
|
||||
ddb.smallParts, removedSmallParts = removeParts(ddb.smallParts, partsToRemove)
|
||||
ddb.bigParts, removedBigParts = removeParts(ddb.bigParts, partsToRemove)
|
||||
|
||||
if pwNew != nil {
|
||||
switch dstPartType {
|
||||
case partInmemory:
|
||||
ddb.inmemoryParts = append(ddb.inmemoryParts, pwNew)
|
||||
ddb.startInmemoryPartsMergerLocked()
|
||||
case partSmall:
|
||||
ddb.smallParts = append(ddb.smallParts, pwNew)
|
||||
ddb.startSmallPartsMergerLocked()
|
||||
case partBig:
|
||||
ddb.bigParts = append(ddb.bigParts, pwNew)
|
||||
ddb.startBigPartsMergerLocked()
|
||||
default:
|
||||
logger.Panicf("BUG: unknown partType=%d", dstPartType)
|
||||
}
|
||||
}
|
||||
|
||||
// Atomically store the updated list of file-based parts on disk.
|
||||
// This must be performed under partsLock in order to prevent from races
|
||||
// when multiple concurrently running goroutines update the list.
|
||||
if removedSmallParts > 0 || removedBigParts > 0 || pwNew != nil && dstPartType != partInmemory {
|
||||
smallPartNames := getPartNames(ddb.smallParts)
|
||||
bigPartNames := getPartNames(ddb.bigParts)
|
||||
mustWritePartNames(ddb.path, smallPartNames, bigPartNames)
|
||||
}
|
||||
|
||||
ddb.partsLock.Unlock()
|
||||
|
||||
var pwsChunk []*partWrapper
|
||||
for len(pws) > 0 {
|
||||
// Do not take into account available disk space when performing the final flush of in-memory parts to disk,
|
||||
// since otherwise these parts will be lost.
|
||||
// It is better to crash on out of disk error in this case.
|
||||
pwsChunk = appendPartsToMerge(pwsChunk[:0], pws, math.MaxUint64)
|
||||
if len(pwsChunk) == 0 {
|
||||
pwsChunk = append(pwsChunk[:0], pws...)
|
||||
}
|
||||
partsToRemove := partsToMap(pwsChunk)
|
||||
removedParts := 0
|
||||
pws, removedParts = removeParts(pws, partsToRemove)
|
||||
if removedParts != len(pwsChunk) {
|
||||
logger.Panicf("BUG: unexpected number of parts removed; got %d; want %d", removedParts, len(pwsChunk))
|
||||
removedParts := removedInmemoryParts + removedSmallParts + removedBigParts
|
||||
if removedParts != len(partsToRemove) {
|
||||
logger.Panicf("BUG: unexpected number of parts removed; got %d, want %d", removedParts, len(partsToRemove))
|
||||
}
|
||||
|
||||
ddb.mustMergeParts(pwsChunk, true)
|
||||
// Mark old parts as must be deleted and decrement reference count, so they are eventually closed and deleted.
|
||||
for _, pw := range pws {
|
||||
pw.mustDrop.Store(true)
|
||||
pw.decRef()
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -724,54 +854,6 @@ func partsToMap(pws []*partWrapper) map[*partWrapper]struct{} {
|
|||
return m
|
||||
}
|
||||
|
||||
func (ddb *datadb) swapSrcWithDstParts(pws []*partWrapper, pwNew *partWrapper, dstPartType partType) {
|
||||
// Atomically unregister old parts and add new part to pt.
|
||||
partsToRemove := partsToMap(pws)
|
||||
removedInmemoryParts := 0
|
||||
removedFileParts := 0
|
||||
|
||||
ddb.partsLock.Lock()
|
||||
|
||||
ddb.inmemoryParts, removedInmemoryParts = removeParts(ddb.inmemoryParts, partsToRemove)
|
||||
ddb.fileParts, removedFileParts = removeParts(ddb.fileParts, partsToRemove)
|
||||
if pwNew != nil {
|
||||
switch dstPartType {
|
||||
case partInmemory:
|
||||
ddb.inmemoryParts = append(ddb.inmemoryParts, pwNew)
|
||||
ddb.startOldInmemoryPartsFlusherLocked()
|
||||
case partFile:
|
||||
ddb.fileParts = append(ddb.fileParts, pwNew)
|
||||
default:
|
||||
logger.Panicf("BUG: unknown partType=%d", dstPartType)
|
||||
}
|
||||
if len(ddb.inmemoryParts)+len(ddb.fileParts) > defaultPartsToMerge {
|
||||
ddb.startMergeWorkerLocked()
|
||||
}
|
||||
}
|
||||
|
||||
// Atomically store the updated list of file-based parts on disk.
|
||||
// This must be performed under partsLock in order to prevent from races
|
||||
// when multiple concurrently running goroutines update the list.
|
||||
if removedFileParts > 0 || pwNew != nil && dstPartType == partFile {
|
||||
partNames := getPartNames(ddb.fileParts)
|
||||
mustWritePartNames(ddb.path, partNames)
|
||||
}
|
||||
|
||||
ddb.partsLock.Unlock()
|
||||
|
||||
removedParts := removedInmemoryParts + removedFileParts
|
||||
if removedParts != len(partsToRemove) {
|
||||
logger.Panicf("BUG: unexpected number of parts removed; got %d, want %d", removedParts, len(partsToRemove))
|
||||
}
|
||||
|
||||
// Mark old parts as must be deleted and decrement reference count,
|
||||
// so they are eventually closed and deleted.
|
||||
for _, pw := range pws {
|
||||
pw.mustDrop.Store(true)
|
||||
pw.decRef()
|
||||
}
|
||||
}
|
||||
|
||||
func removeParts(pws []*partWrapper, partsToRemove map[*partWrapper]struct{}) ([]*partWrapper, int) {
|
||||
dst := pws[:0]
|
||||
for _, pw := range pws {
|
||||
|
|
@ -853,6 +935,34 @@ func (ddb *datadb) releasePartsToMerge(pws []*partWrapper) {
|
|||
ddb.partsLock.Unlock()
|
||||
}
|
||||
|
||||
func (ddb *datadb) getMaxBigPartSize() uint64 {
|
||||
return getMaxOutBytes(ddb.path)
|
||||
}
|
||||
|
||||
func (ddb *datadb) getMaxSmallPartSize() uint64 {
|
||||
// Small parts are cached in the OS page cache,
|
||||
// so limit their size by the remaining free RAM.
|
||||
mem := memory.Remaining()
|
||||
n := uint64(mem) / defaultPartsToMerge
|
||||
if n < 10e6 {
|
||||
n = 10e6
|
||||
}
|
||||
// Make sure the output part fits available disk space for small parts.
|
||||
sizeLimit := getMaxOutBytes(ddb.path)
|
||||
if n > sizeLimit {
|
||||
n = sizeLimit
|
||||
}
|
||||
return n
|
||||
}
|
||||
|
||||
func getMaxOutBytes(path string) uint64 {
|
||||
n := availableDiskSpace(path)
|
||||
if n > maxBigPartSize {
|
||||
n = maxBigPartSize
|
||||
}
|
||||
return n
|
||||
}
|
||||
|
||||
func availableDiskSpace(path string) uint64 {
|
||||
available := fs.MustGetFreeSpace(path)
|
||||
reserved := reservedDiskSpace.Load()
|
||||
|
|
@ -865,7 +975,7 @@ func availableDiskSpace(path string) uint64 {
|
|||
func tryReserveDiskSpace(path string, n uint64) bool {
|
||||
available := fs.MustGetFreeSpace(path)
|
||||
reserved := reserveDiskSpace(n)
|
||||
if available > reserved {
|
||||
if available >= reserved {
|
||||
return true
|
||||
}
|
||||
releaseDiskSpace(n)
|
||||
|
|
@ -908,20 +1018,29 @@ func mustCloseDatadb(ddb *datadb) {
|
|||
ddb.wg.Wait()
|
||||
|
||||
// flush in-memory data to disk
|
||||
ddb.mustFlushInmemoryPartsToDisk()
|
||||
ddb.mustFlushInmemoryPartsToFiles(true)
|
||||
if len(ddb.inmemoryParts) > 0 {
|
||||
logger.Panicf("BUG: the number of in-memory parts must be zero after flushing them to disk; got %d", len(ddb.inmemoryParts))
|
||||
}
|
||||
ddb.inmemoryParts = nil
|
||||
|
||||
// close file parts
|
||||
for _, pw := range ddb.fileParts {
|
||||
// close small parts
|
||||
for _, pw := range ddb.smallParts {
|
||||
pw.decRef()
|
||||
if n := pw.refCount.Load(); n != 0 {
|
||||
logger.Panicf("BUG: ther are %d references to filePart", n)
|
||||
logger.Panicf("BUG: there are %d references to smallPart", n)
|
||||
}
|
||||
}
|
||||
ddb.fileParts = nil
|
||||
ddb.smallParts = nil
|
||||
|
||||
// close big parts
|
||||
for _, pw := range ddb.bigParts {
|
||||
pw.decRef()
|
||||
if n := pw.refCount.Load(); n != 0 {
|
||||
logger.Panicf("BUG: there are %d references to bigPart", n)
|
||||
}
|
||||
}
|
||||
ddb.bigParts = nil
|
||||
|
||||
ddb.path = ""
|
||||
ddb.pt = nil
|
||||
|
|
@ -941,7 +1060,9 @@ func getPartNames(pws []*partWrapper) []string {
|
|||
return partNames
|
||||
}
|
||||
|
||||
func mustWritePartNames(path string, partNames []string) {
|
||||
func mustWritePartNames(path string, smallPartNames, bigPartNames []string) {
|
||||
partNames := append([]string{}, smallPartNames...)
|
||||
partNames = append(partNames, bigPartNames...)
|
||||
data, err := json.Marshal(partNames)
|
||||
if err != nil {
|
||||
logger.Panicf("BUG: cannot marshal partNames to JSON: %s", err)
|
||||
|
|
@ -1102,8 +1223,3 @@ func getBlocksCount(pws []*partWrapper) uint64 {
|
|||
}
|
||||
return n
|
||||
}
|
||||
|
||||
func shouldUsePageCacheForPartSize(size uint64) bool {
|
||||
mem := memory.Remaining() / defaultPartsToMerge
|
||||
return size <= uint64(mem)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -26,7 +26,7 @@ type LogRows struct {
|
|||
// timestamps holds stimestamps for rows added to LogRows
|
||||
timestamps []int64
|
||||
|
||||
// rows holds fields for rows atted to LogRows.
|
||||
// rows holds fields for rows added to LogRows.
|
||||
rows [][]Field
|
||||
|
||||
// sf is a helper for sorting fields in every added row
|
||||
|
|
|
|||
|
|
@ -26,14 +26,20 @@ func TestPartitionLifecycle(t *testing.T) {
|
|||
if ddbStats.InmemoryParts != 0 {
|
||||
t.Fatalf("unexpected non-zero number of in-memory parts in empty partition: %d", ddbStats.InmemoryParts)
|
||||
}
|
||||
if ddbStats.FileParts != 0 {
|
||||
t.Fatalf("unexpected non-zero number of file parts in empty partition: %d", ddbStats.FileParts)
|
||||
if ddbStats.SmallParts != 0 {
|
||||
t.Fatalf("unexpected non-zero number of small file parts in empty partition: %d", ddbStats.SmallParts)
|
||||
}
|
||||
if ddbStats.BigParts != 0 {
|
||||
t.Fatalf("unexpected non-zero number of big file parts in empty partition: %d", ddbStats.BigParts)
|
||||
}
|
||||
if ddbStats.CompressedInmemorySize != 0 {
|
||||
t.Fatalf("unexpected non-zero size of inmemory parts for empty partition")
|
||||
}
|
||||
if ddbStats.CompressedFileSize != 0 {
|
||||
t.Fatalf("unexpected non-zero size of file parts for empty partition")
|
||||
if ddbStats.CompressedSmallPartSize != 0 {
|
||||
t.Fatalf("unexpected non-zero size of small file parts for empty partition")
|
||||
}
|
||||
if ddbStats.CompressedBigPartSize != 0 {
|
||||
t.Fatalf("unexpected non-zero size of big file parts for empty partition")
|
||||
}
|
||||
time.Sleep(10 * time.Millisecond)
|
||||
mustClosePartition(pt)
|
||||
|
|
@ -87,8 +93,8 @@ func TestPartitionMustAddRowsSerial(t *testing.T) {
|
|||
if ddbStats.InmemoryParts != 0 {
|
||||
t.Fatalf("unexpected non-zero number of in-memory parts after re-opening the partition: %d", ddbStats.InmemoryParts)
|
||||
}
|
||||
if ddbStats.FileParts == 0 {
|
||||
t.Fatalf("the number of file parts must be greater than 0 after re-opening the partition")
|
||||
if ddbStats.SmallParts+ddbStats.BigParts == 0 {
|
||||
t.Fatalf("the number of small parts must be greater than 0 after re-opening the partition")
|
||||
}
|
||||
|
||||
// Try adding entries for multiple streams at a time
|
||||
|
|
@ -115,7 +121,7 @@ func TestPartitionMustAddRowsSerial(t *testing.T) {
|
|||
if ddbStats.InmemoryParts != 0 {
|
||||
t.Fatalf("unexpected non-zero number of in-memory parts after re-opening the partition: %d", ddbStats.InmemoryParts)
|
||||
}
|
||||
if ddbStats.FileParts == 0 {
|
||||
if ddbStats.SmallParts+ddbStats.BigParts == 0 {
|
||||
t.Fatalf("the number of file parts must be greater than 0 after re-opening the partition")
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -400,7 +400,8 @@ func initStreamFiltersList(tenantIDs []TenantID, idb *indexdb, filters []filter)
|
|||
func (ddb *datadb) search(so *searchOptions, workCh chan<- []*blockSearchWork, stopCh <-chan struct{}) partitionSearchFinalizer {
|
||||
// Select parts with data for the given time range
|
||||
ddb.partsLock.Lock()
|
||||
pws := appendPartsInTimeRange(nil, ddb.fileParts, so.minTimestamp, so.maxTimestamp)
|
||||
pws := appendPartsInTimeRange(nil, ddb.bigParts, so.minTimestamp, so.maxTimestamp)
|
||||
pws = appendPartsInTimeRange(pws, ddb.smallParts, so.minTimestamp, so.maxTimestamp)
|
||||
pws = appendPartsInTimeRange(pws, ddb.inmemoryParts, so.minTimestamp, so.maxTimestamp)
|
||||
|
||||
// Increase references to the searched parts, so they aren't deleted during search.
|
||||
|
|
|
|||
|
|
@ -65,11 +65,8 @@ type valuesEncoder struct {
|
|||
func (ve *valuesEncoder) reset() {
|
||||
ve.buf = ve.buf[:0]
|
||||
|
||||
vs := ve.values
|
||||
for i := range vs {
|
||||
vs[i] = ""
|
||||
}
|
||||
ve.values = vs[:0]
|
||||
clear(ve.values)
|
||||
ve.values = ve.values[:0]
|
||||
}
|
||||
|
||||
// encode encodes values to ve.values and returns the encoded value type with min/max encoded values.
|
||||
|
|
@ -1073,11 +1070,8 @@ type valuesDict struct {
|
|||
}
|
||||
|
||||
func (vd *valuesDict) reset() {
|
||||
vs := vd.values
|
||||
for i := range vs {
|
||||
vs[i] = ""
|
||||
}
|
||||
vd.values = vs[:0]
|
||||
clear(vd.values)
|
||||
vd.values = vd.values[:0]
|
||||
}
|
||||
|
||||
func (vd *valuesDict) copyFrom(src *valuesDict) {
|
||||
|
|
@ -1134,7 +1128,7 @@ func (vd *valuesDict) unmarshal(src []byte) ([]byte, error) {
|
|||
return srcOrig, fmt.Errorf("cannot umarshal value %d out of %d from dict: %w", i, dictLen, err)
|
||||
}
|
||||
src = tail
|
||||
// Do not use bytesutil.InternBytes(data) here, since it works slower than the string(data) in prod
|
||||
|
||||
v := string(data)
|
||||
vd.values = append(vd.values, v)
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue