Failed to initialize new wallet with different host from the faucet host

[kikakkz]

Description
When initialize new wallet with different host from the one which is running the faucet. It'll fail to initialize the wallet. It did success if we initialize with the same host of the faucet.

Steps

The first host with IP 172.16.31.42:

• git clone https://github.com./linera-io/linera-protocol.git
• cd linera-protocol
• cargo install --path linera-service --features storage-service
• cargo install --path linera-storage-service --features storage-service
• linera net up --with-faucet --faucet-port 8080

The second host:

• git clone https://github.com./linera-io/linera-protocol.git
• cd linera-protocol
• cargo install --path linera-service --features storage-service
• cargo install --path linera-storage-service --features storage-service
• linera wallet init --faucet http://172.16.31.42:8080 --with-new-chain

Expection
We should be able to initialize new wallet from faucet successfully on any hosts.

Result
We can initialize on the same host of faucet, but fail at other hosts.

Errors

2025-03-18T04:09:47.651669Z ERROR linera::main:handle_chain_info_query{address="http://localhost:9000"}: grpc_client: error=Grpc error: remote request [handle_chain_info_query] failed with status: Status { code: Unavailable, message: "tcp connect error: Connection refused (os error 111)", source: Some(tonic::transport::Error(Transport, ConnectError(ConnectError("tcp connect error", Os { code: 111, kind: ConnectionRefused, message: "Connection refused" })))) }
2025-03-18T04:09:47.653347Z ERROR linera: Error is chain client error: Failed to download certificates and update local node to the next height 4 of chain a3edc33d8e951a11

Screenshot

[ma2bd]

Mmm this is very weird. Do you have the commit hash on github?

[kikakkz]

Mmm this is very weird. Do you have the commit hash on github?

Yeah, sure. Just with latest code of main branch. 4a8d4c9

[kikakkz]

Mmm this is very weird. Do you have the commit hash on github?

Yeah, sure. Just with latest code of main branch. 4a8d4c9

Likely it requests validator with localhost on that host. But the validator is run with linera net up --with-faucet --faucet-port 8080 on faucet host.

[ma2bd]

Good catch. (If it doesn't exist yet) We could try an option to use a different hostname in linera net up.

[Twey]

Besides, the hostname for linera net up should be used consistently, i.e. if the host is localhost (which is sensible, since linera net up is intended for local testing) it should bind to localhost and you shouldn't even be able to access the faucet from other machines!

[yashwanth6303]

Verified

[kikakkz]

BTW: we are successful to initialize wallet from another machine with script and template here https://github.com./respeer-ai/linera-protocol/blob/respeer-maas-7b3ae0b6-2025_03_15/scripts/run_local_with_vars.sh so I guess it's not urgent of this issue.

We use official linera-protocol to run genesis network then initialize wallet in other machine with respeer fork for compatibility testing, 😄.