MultiChain Developer Q&A - Recent questions tagged multichain-util

multichain-util clone is ignoring -datadir option

Wed, 08 Nov 2023 14:05:35 +0000

After creating a chain like so:

multichain-util create test-test_3 -datadir=/mnt/disks/data/multichain_data/
MultiChain 2.3 Utilities (latest protocol 20013)
Blockchain parameter set was successfully generated.
You can edit it in /mnt/disks/data/multichain_data/test-test_3/params.dat before running multichaind for the first time.
To generate blockchain please run "multichaind test-test_3 -daemon".
Cannot create chain parameter set, file /home/test/.multichain/public_access_3/params.dat does not exist

I start the chain

multichaind test-test_3 -daemon
MultiChain 2.3 Daemon (Community Edition, latest protocol 20013)
Starting up node...
ERROR: Parameter set for blockchain test-test_3 is not complete.

If you want to create new blockchain please run one of the following:
multichain-util create test-test_3
multichain-util clone <old-blockchain-name> test-test_3
And rerun multichaind test-test_3

If you want to connect to existing blockchain please specify seed node:
multichaind test-test_3@<seed-node-ip>
multichaind test-test_3@<seed-node-ip>:<seed-node-port>

And when I try to clone an existing chain, -datadir is ignored and instead the multichain-util thinks I am pointing to elsewhere.

multichain-util clone public_access_3 test-test_3 -datadir=/mnt/disks/data/multichain_data/
MultiChain 2.3 Utilities (latest protocol 20013)
Cannot create chain parameter set, file /home/test/.multichain/public_access_3/params.dat does not exist
ERROR: Blockchain parameter set was not generated.

Why does the program complain about invalid protocol version?

Fri, 03 Nov 2017 15:41:23 +0000

What am I doing wrong here?

Executing cmd: multichain-1.0.1/multichain-util create documents -maximum-block-size=1000000000 default-rpc-port=8570

MultiChain 1.0.1 Utilities (protocol 10009)

ERROR: Invalid value for protocol version. Valid range: 10004 - 10009
ERROR: Blockchain parameter set was not generated.

Creating multiple chains in a same node

Thu, 24 Aug 2017 19:57:06 +0000

Hi,

I'm trying to start to use multichain. I'm able to have a single chain created in my server, and being connected by other node.

By the way, I need to have more chains, all of them controlled by the same server. Is it possible? Can I have more than one chain in the same server?

I want a thing like bellow:

multichain-util create chain1

multichaind chain1 -daemon

multichain-util create chain2

multichaind -daemon chain2

Is it possible? Can I manually set the values for the chain's port and rpcport?

Thanks,

Diego