mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-11-23 20:37:12 +01:00
138 lines
3.3 KiB
Go
138 lines
3.3 KiB
Go
package mergeset
|
|
|
|
import (
|
|
"path/filepath"
|
|
"sync"
|
|
"unsafe"
|
|
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/blockcache"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/filestream"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/memory"
|
|
)
|
|
|
|
var idxbCache = blockcache.NewCache(getMaxIndexBlocksCacheSize)
|
|
var ibCache = blockcache.NewCache(getMaxInmemoryBlocksCacheSize)
|
|
|
|
// SetIndexBlocksCacheSize overrides the default size of indexdb/indexBlocks cache
|
|
func SetIndexBlocksCacheSize(size int) {
|
|
maxIndexBlockCacheSize = size
|
|
}
|
|
|
|
func getMaxIndexBlocksCacheSize() int {
|
|
maxIndexBlockCacheSizeOnce.Do(func() {
|
|
if maxIndexBlockCacheSize <= 0 {
|
|
maxIndexBlockCacheSize = int(0.10 * float64(memory.Allowed()))
|
|
}
|
|
})
|
|
return maxIndexBlockCacheSize
|
|
}
|
|
|
|
var (
|
|
maxIndexBlockCacheSize int
|
|
maxIndexBlockCacheSizeOnce sync.Once
|
|
)
|
|
|
|
// SetDataBlocksCacheSize overrides the default size of indexdb/dataBlocks cache
|
|
func SetDataBlocksCacheSize(size int) {
|
|
maxInmemoryBlockCacheSize = size
|
|
}
|
|
|
|
func getMaxInmemoryBlocksCacheSize() int {
|
|
maxInmemoryBlockCacheSizeOnce.Do(func() {
|
|
if maxInmemoryBlockCacheSize <= 0 {
|
|
maxInmemoryBlockCacheSize = int(0.25 * float64(memory.Allowed()))
|
|
}
|
|
})
|
|
return maxInmemoryBlockCacheSize
|
|
}
|
|
|
|
var (
|
|
maxInmemoryBlockCacheSize int
|
|
maxInmemoryBlockCacheSizeOnce sync.Once
|
|
)
|
|
|
|
type part struct {
|
|
ph partHeader
|
|
|
|
path string
|
|
|
|
size uint64
|
|
|
|
mrs []metaindexRow
|
|
|
|
indexFile fs.MustReadAtCloser
|
|
itemsFile fs.MustReadAtCloser
|
|
lensFile fs.MustReadAtCloser
|
|
}
|
|
|
|
func mustOpenFilePart(path string) *part {
|
|
var ph partHeader
|
|
ph.MustReadMetadata(path)
|
|
|
|
metaindexPath := filepath.Join(path, metaindexFilename)
|
|
metaindexFile := filestream.MustOpen(metaindexPath, true)
|
|
metaindexSize := fs.MustFileSize(metaindexPath)
|
|
|
|
indexPath := filepath.Join(path, indexFilename)
|
|
indexFile := fs.MustOpenReaderAt(indexPath)
|
|
indexSize := fs.MustFileSize(indexPath)
|
|
|
|
itemsPath := filepath.Join(path, itemsFilename)
|
|
itemsFile := fs.MustOpenReaderAt(itemsPath)
|
|
itemsSize := fs.MustFileSize(itemsPath)
|
|
|
|
lensPath := filepath.Join(path, lensFilename)
|
|
lensFile := fs.MustOpenReaderAt(lensPath)
|
|
lensSize := fs.MustFileSize(lensPath)
|
|
|
|
size := metaindexSize + indexSize + itemsSize + lensSize
|
|
return newPart(&ph, path, size, metaindexFile, indexFile, itemsFile, lensFile)
|
|
}
|
|
|
|
func newPart(ph *partHeader, path string, size uint64, metaindexReader filestream.ReadCloser, indexFile, itemsFile, lensFile fs.MustReadAtCloser) *part {
|
|
mrs, err := unmarshalMetaindexRows(nil, metaindexReader)
|
|
if err != nil {
|
|
logger.Panicf("FATAL: cannot unmarshal metaindexRows from %q: %s", path, err)
|
|
}
|
|
metaindexReader.MustClose()
|
|
|
|
var p part
|
|
p.path = path
|
|
p.size = size
|
|
p.mrs = mrs
|
|
|
|
p.indexFile = indexFile
|
|
p.itemsFile = itemsFile
|
|
p.lensFile = lensFile
|
|
|
|
p.ph.CopyFrom(ph)
|
|
return &p
|
|
}
|
|
|
|
func (p *part) MustClose() {
|
|
p.indexFile.MustClose()
|
|
p.itemsFile.MustClose()
|
|
p.lensFile.MustClose()
|
|
|
|
idxbCache.RemoveBlocksForPart(p)
|
|
ibCache.RemoveBlocksForPart(p)
|
|
}
|
|
|
|
type indexBlock struct {
|
|
bhs []blockHeader
|
|
|
|
// The buffer for holding the data referrred by bhs
|
|
buf []byte
|
|
}
|
|
|
|
func (idxb *indexBlock) SizeBytes() int {
|
|
bhs := idxb.bhs[:cap(idxb.bhs)]
|
|
n := int(unsafe.Sizeof(*idxb))
|
|
for i := range bhs {
|
|
n += bhs[i].SizeBytes()
|
|
}
|
|
return n
|
|
}
|