What happened on deploy invoke and query in Hyperledger chaincode

Question

I need to confirm the cost of deployment, invoke and query using chaincode  If they are the same, seems better to make Chaincode more than one, even hundreds, thousands. Can someone explain to me?

Answer 1

1. Deploy: During Deploy the chaincode is written onto the ledger in a form of transaction and distributed to all nodes in the network. Each node creates a Docker container with this chaincode embedded in it. After that container will be started and Init method will be executed.

2. Invoke: During Invoke the chaincode can modify the state of the variables in ledger. Each “Invoke” transaction will be added to the “block” in the ledger. 

3. Query: During Query the chaincode will read the current state and send it back to user. This transaction is not saved in blockchain.