is there any way of getting all data in hyperledger fabric before we start the ledger

Question

hi everyone I am having one doubt if we start the docker container  in hyperledger fabric  ./startFabric.sh  we lost all data which we stored in ledger. for example: In production environment some issues occured so that container need to start it again  in that sceanrio we lost all  users data which stored in ledger. is there any way of backup method is there to retrieve all data in hyperledger fabric. once we start the container again we need to retrieve the data again we need to store the docker. please help me .

Thanks in advance

Answer 1

Hi, @Harinishree,

If you use the ./startFabric script directly to run the network. It first kills the existing network before starting a new one. you can modify the script to make sure it just stops the nodes instead of deleting them. Also, you can take a backup from the volumes before you stop the network.

For in detail information on Hyperledger fabric back up and restore you can go through this https://medium.com/@jariarud/hyperledger-fabric-backup-and-restore-3263561e259e

Answer 2

Hey, @Harinishree,

You can also do one thing, bind volumes to your host machine. So that when you restart your peer service again it doesn't lose all the data.