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Use a cryptographically random generator for ULID

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Signed-off-by: Marco Pracucci <marco@pracucci.com>
This commit is contained in:
Marco Pracucci 2020-02-25 12:12:03 +01:00
parent b38ee4496b
commit c391b6ca43
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GPG Key ID: 74C1BD403D2DF9B5
1 changed files with 3 additions and 5 deletions
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8
tsdb/compact.go
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@ -15,10 +15,10 @@ package tsdb
import (
"context"
"crypto/rand"
"fmt"
"io"
"math"
"math/rand"
"os"
"path/filepath"
"sort"
@ -413,8 +413,7 @@ func (c *LeveledCompactor) Compact(dest string, dirs []string, open []*Block) (u
uids = append(uids, meta.ULID.String())
}
entropy := rand.New(rand.NewSource(time.Now().UnixNano()))
uid = ulid.MustNew(ulid.Now(), entropy)
uid = ulid.MustNew(ulid.Now(), rand.Reader)
meta := compactBlockMetas(uid, metas...)
err = c.write(dest, meta, blocks...)
@ -468,8 +467,7 @@ func (c *LeveledCompactor) Compact(dest string, dirs []string, open []*Block) (u
func (c *LeveledCompactor) Write(dest string, b BlockReader, mint, maxt int64, parent *BlockMeta) (ulid.ULID, error) {
start := time.Now()
entropy := rand.New(rand.NewSource(time.Now().UnixNano()))
uid := ulid.MustNew(ulid.Now(), entropy)
uid := ulid.MustNew(ulid.Now(), rand.Reader)
meta := &BlockMeta{
ULID: uid,