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prune.go
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/
prune.go
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package datastore
import (
"encoding/json"
"time"
"github.com/containerd/containerd/errdefs"
bolt "github.com/coreos/bbolt"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
var (
pruneTimeout = time.Second * 90
)
func (s *service) prune() error {
s.lock.Lock()
if err := s.db.Update(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte(s.dsTombstoneBucketName))
if b == nil {
return errdefs.ToGRPC(errors.Wrapf(errdefs.ErrNotFound, "bucket %s", s.dsTombstoneBucketName))
}
if err := b.ForEach(func(k, v []byte) error {
var t *tombstone
if err := json.Unmarshal(v, &t); err != nil {
return err
}
if time.Now().After(t.Timestamp.Add(pruneTimeout)) {
logrus.Debugf("prune: removing expired tombstone record %s", k)
if err := pruneRemove(b, k); err != nil {
return err
}
}
return nil
}); err != nil {
return err
}
return nil
}); err != nil {
return err
}
s.lock.Unlock()
return nil
}
func pruneRemove(b *bolt.Bucket, key []byte) error {
return b.Delete(key)
}