51 lines
1.7 KiB
Go
51 lines
1.7 KiB
Go
/*
|
|
Copyright IBM Corp. All Rights Reserved.
|
|
|
|
SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
package kvledger
|
|
|
|
import (
|
|
"github.com/hyperledger/fabric/common/ledger/blkstorage"
|
|
"github.com/hyperledger/fabric/common/ledger/util/leveldbhelper"
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
// RollbackKVLedger rollbacks a ledger to a specified block number
|
|
func RollbackKVLedger(rootFSPath, ledgerID string, blockNum uint64) error {
|
|
fileLockPath := fileLockPath(rootFSPath)
|
|
fileLock := leveldbhelper.NewFileLock(fileLockPath)
|
|
if err := fileLock.Lock(); err != nil {
|
|
return errors.Wrap(err, "as another peer node command is executing,"+
|
|
" wait for that command to complete its execution or terminate it before retrying")
|
|
}
|
|
defer fileLock.Unlock()
|
|
|
|
blockstorePath := BlockStorePath(rootFSPath)
|
|
ledgerIDs, err := blkstorage.GetLedgersBootstrappedFromSnapshot(blockstorePath)
|
|
if err != nil {
|
|
return errors.WithMessage(err, "error while checking if any ledger has been bootstrapped from snapshot")
|
|
}
|
|
if len(ledgerIDs) > 0 {
|
|
return errors.Errorf("cannot rollback any channel because the peer contains channel(s) %s that were bootstrapped from snapshot", ledgerIDs)
|
|
}
|
|
|
|
if err := blkstorage.ValidateRollbackParams(blockstorePath, ledgerID, blockNum); err != nil {
|
|
return err
|
|
}
|
|
|
|
logger.Infof("Dropping databases")
|
|
if err := dropDBs(rootFSPath); err != nil {
|
|
return err
|
|
}
|
|
|
|
logger.Info("Rolling back ledger store")
|
|
indexConfig := &blkstorage.IndexConfig{AttrsToIndex: attrsToIndex}
|
|
if err := blkstorage.Rollback(blockstorePath, ledgerID, blockNum, indexConfig); err != nil {
|
|
return err
|
|
}
|
|
logger.Infof("The channel [%s] has been successfully rolled back to the block number [%d]", ledgerID, blockNum)
|
|
return nil
|
|
}
|