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Tweak constants

pull/9150/head
Edd Robinson 2017-11-30 17:23:03 +00:00
parent 1e891b5fbc
commit a46f186118
1 changed files with 8 additions and 6 deletions
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14
tsdb/series_file.go
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@ -21,7 +21,7 @@ import (
// ErrSeriesOverflow is returned when too many series are added to a series writer.
var ErrSeriesOverflow = errors.New("series overflow")
// Series list field size constants.
// SeriesIDSize is the size in bytes of a series key ID.
const SeriesIDSize = 8
// Series flag constants.
@ -30,14 +30,16 @@ const (
SeriesFileTombstoneFlag = 0x01
)
// DefaultMaxSeriesFileSize is the maximum series file size. Assuming that each
// series key takes, for example, 150 bytes, the limit would support ~229M series.
const DefaultMaxSeriesFileSize = 32 * (1 << 30) // 32GB
// MaxSeriesFileHashSize is the maximum number of series in a single hash.
const MaxSeriesFileHashSize = (1048576 * SeriesMapLoadFactor) / 100
// MaxSeriesFileHashSize is the maximum number of series in a single hash map.
const MaxSeriesFileHashSize = (1 << 20 * SeriesMapLoadFactor) / 100 // (1MB * 90) / 100 == ~943K
// SeriesMapThreshold is the number of series to hold in the in-memory series map
// before compacting and rebuilding the on-disk map.
const SeriesMapThreshold = 300000
// SeriesMapThreshold is the number of series IDs to hold in the in-memory
// series map before compacting and rebuilding the on-disk representation.
const SeriesMapThreshold = 1 << 22 // ~4M ids * 8 bytes per id == ~32MB
// SeriesFile represents the section of the index that holds series data.
type SeriesFile struct {