frostfs-node/pkg/local_object_storage/blobstor/blobovniczatree/control.go
Dmitrii Stepanov 7456c8556a [#536] blobovnicza: Add blobovniczatree DB cache
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-09-01 13:53:11 +03:00

66 lines
1.5 KiB
Go

package blobovniczatree
import (
"context"
"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
"go.uber.org/zap"
)
// Open opens blobovnicza tree.
func (b *Blobovniczas) Open(readOnly bool) error {
b.readOnly = readOnly
b.metrics.SetMode(readOnly)
b.openManagers()
return nil
}
// Init initializes blobovnicza tree.
//
// Should be called exactly once.
func (b *Blobovniczas) Init() error {
b.log.Debug(logs.BlobovniczatreeInitializingBlobovniczas)
if b.readOnly {
b.log.Debug(logs.BlobovniczatreeReadonlyModeSkipBlobovniczasInitialization)
return nil
}
return b.iterateLeaves(context.TODO(), func(p string) (bool, error) {
shBlz := b.getBlobovniczaWithoutCaching(p)
_, err := shBlz.Open()
if err != nil {
return true, err
}
defer shBlz.Close()
b.log.Debug(logs.BlobovniczatreeBlobovniczaSuccessfullyInitializedClosing, zap.String("id", p))
return false, nil
})
}
func (b *Blobovniczas) openManagers() {
b.commondbManager.Open() //order important
b.activeDBManager.Open()
b.dbCache.Open()
}
// Close implements common.Storage.
func (b *Blobovniczas) Close() error {
b.dbCache.Close() //order important
b.activeDBManager.Close()
b.commondbManager.Close()
return nil
}
// returns blobovnicza with path p
//
// If blobovnicza is already cached, instance from cache is returned w/o changes.
func (b *Blobovniczas) getBlobovnicza(p string) *sharedDB {
return b.dbCache.GetOrCreate(p)
}
func (b *Blobovniczas) getBlobovniczaWithoutCaching(p string) *sharedDB {
return b.commondbManager.GetByPath(p)
}