I hope you're alright and safe there.

I'm trying to set up a private Ethereum network and bind it to Hyperledger Caliper. However, I couldn't sufficient sources to do that. Recently, I used geth v1.19 Ethereum client and created two nodes, initialised them with the same genesis.json file. But I couldn't go beyond that point. I tried to bind it to Caliper and the error I got as the following.

ethereum@ethereum-VirtualBox:~/caliper-benchmarks$ npx caliper launch master --caliper-workspace . --caliper-benchconfig benchmarks/scenario/simple/config.yaml --caliper-networkconfig networks/ethereum/1node/ethereum.json 2020.09.26-02:18:31.025 info [caliper] [cli-launch-master] Set workspace path: /home/ethereum/caliper-benchmarks 2020.09.26-02:18:31.028 info [caliper] [cli-launch-master] Set benchmark configuration path: /home/ethereum/caliper-benchmarks/benchmarks/scenario/simple/config.yaml 2020.09.26-02:18:31.029 info [caliper] [cli-launch-master] Set network configuration path: /home/ethereum/caliper-benchmarks/networks/ethereum/1node/ethereum.json 2020.09.26-02:18:31.029 info [caliper] [cli-launch-master] Set SUT type: ethereum 2020.09.26-02:18:32.106 info [caliper] [benchmark-validator] No observer specified, will default to none 2020.09.26-02:18:32.106 info [caliper] [caliper-engine] Starting benchmark flow 2020.09.26-02:18:32.154 error [caliper] [cli-launch-master] Unexpected error during benchmark execution: Error: Ethereum benchmarks must not use http(s) RPC connections, as there is no way to guarantee the order of submitted transactions when using other transports. For more information, please see https://github.com/hyperledger/caliper/issues/776#issuecomment-624771622

I may not achieve to set up a proper private Ethereum network for Caliper. I would be grateful if you could help me out with testing the private Ethereum network with Caliper.

My email: [email protected]

Best regards,

1 Answer 1


Go to the network settings file (networks/ethereum/1node/ethereum.json) and replace the following line

"url": "http://localhost:8545",


"url": "ws://localhost:8545",

Make sure you use the correct port number.

Good Luck

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