分类帐或stateDB在哪里存储在Fabric的对等文件系统中

Question

I am studying and running samples from the Hyperledger Fabric samples .

According to my understanding :

There are two place which "store" data in Hyperledger Fabric:-

->the ledger

->the state database

The state database is simply an indexed view into the chain's/ledger's transaction log, it can therefore be regenerated from the chain at any time.

There are currently two options for the state database: an embedded LevelDB or an external CouchDB .

I want to know where the blockchain/ledger or the database gets stored in the filesystem . Is it stored in a specific directory or a specific port (in case of levelDB as well as couchdb)

Answer 1

For the levelDB one, it is stored under the path /var/hyperledger/production/ledgersData, in which you can find two directories called chains and stateLeveldb . You can try to go into the peer container and have a look.

Answer 2

Here is the way

1. use command docker ps to view all your peers then choose a peer to view data inside
2. docker exec -it container_id bash to open peer cli
3. change directory to /var/hyperledger/production/ledgersData then you can see folder named chains , your data u need is place inside