Running a RPC Node
RPC nodes do not directly participate in block production like consensus nodes. Instead, they are responsible for verifying transactions and facilitating communication between different nodes and between nodes and clients, promoting transaction verification and on-chain information retrieval.
1. Run with cess-nodeadm
1.1 Check the latest version of cess-nodeadm Latest version of cess-nodeadm: https://github.com/CESSProject/cess-nodeadm/tags
⚠️ Replace all occurrences of x.x.x
in the following text with the latest version number. For example, if the latest version is v0.7.0
, then replace x.x.x
with 0.7.0
.
1.2 Check the installed version of cess-nodeadm Enter cess version
in the console to check if the nodeadm version
is the latest. If nodeadm is the latest version, you can skip step 3. If not, proceed to step 3 to install. If you do not see nodeadm version, it means cess-nodeadm is not installed, and you need to proceed to step 3 to install.
1.3 Download and install the cess-nodeadm
wget https://github.com/CESSProject/cess-nodeadm/archive/vx.x.x.tar.gz
tar -xvf vx.x.x.tar.gz
cd cess-nodeadm-x.x.x/
./install.sh
1.4 Stop the RPC node service Enter the command: cess stop chain
to stop the running RPC node service.
1.5 Define script configuration parameters
The archive mode saves all blocks, which is suitable for full node operation, otherwise, you can set the number of blocks to be saved
Enter cess node mode from 'tee/storage/validator/rpcnode' (current: rpcnode, press enter to skip): rpcnode
Enter cess node name (current: cess, press enter to skip): local-chain
Enter cess chain pruning mode, 'archive' or number (current: archive, press enter to skip): archive #number of blocks saved
1.6 Start the RPC node
cess start chain
1.7 Check if the RPC node is synchronizing blocks normally
docker logs chain
2. Run with source code
2.1 Environment Setup Requirements
OS required: Ubuntu 22+
Rust install:
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
Dependencies install:
apt update && apt install -y gcc llvm clang make git libssl-dev pkg-config wget unzip
ProtoBuf install (run as root):
mkdir pb && cd pb \ && wget --show-progress -q https://github.com/protocolbuffers/protobuf/releases/download/v25.2/protoc-25.2-linux-x86_64.zip \ && unzip protoc-25.2-linux-x86_64.zip \ && cp bin/protoc /usr/local/bin/protoc \ && chmod +x /usr/local/bin/protoc \ && cp -r include/* /usr/local/include \ && rm -rf ./* \ && protoc --version
2.2 Get the latest release version of cess-node Check the latest version of cess-node
You can get the latest version using one of the following methods:
Method 1: Download and unzip the release (e.g., cess-0.7.9-venus as example):
wget https://github.com/CESSProject/cess/archive/refs/tags/v0.8.0-premainnet.tar.gz
tar -zxvf v0.8.0-premainnet.tar.gz
Method 2: Clone the repository with the latest tag:
git clone https://github.com/CESSProject/cess.git
cd cess
git checkout $(git describe --tags $(git rev-list --tags --max-count=1))
2.3 Compile cess-node
Enter the cess-node directory:
make
⚠️ Note: The compilation may take approximately 25 minutes on an 8-core machine.
2.4 Start the RPC service
./target/release/cess-node --base-path 【Your custom database path】 --chain cess-premainnet --port 【Your custom p2p port】 --rpc-port 【Your custom rpc port】 --prometheus-external --unsafe-rpc-external --name 【Your custom name】 --rpc-cors all --rpc-max-connections 5000 --state-pruning archive
Use the -h
flag to view more command options.
If the node is printing block synchronization logs, it means it's running successfully.
⚠️ It is recommended to use systemd
, screen
or tmux
commands to run cess-node(RPC) if you want to keep cess-node running.
3. Run with Container
3.1 Environment Setup Requirements shell curl -fsSL https://get.docker.com | bash docker --version docker pull cesslab/cess-chain:premainnet
3.2 Running Command
Make sure that port 30336 and 9944 are not occupied by other processes.
mkdir -p /opt/cess/premainnet-rpc-data
docker run -d \
--name premainnet-rpc \
-v /opt/cess/premainnet-rpc-data:/opt/cess/data \
-p 30336:30336 \
-p 9944:9944 \
cesslab/cess-chain:premainnet \
--base-path /opt/cess/data \
--chain cess-premainnet \
--port 30336 \
--rpc-port 9944 \
--rpc-external \
--execution WASM \
--wasm-execution compiled \
--in-peers 75 \
--out-peers 75 \
--state-pruning archive \
--rpc-max-connections 65535 \
--rpc-cors all \
--prometheus-external
Execute docker run -it --rm --entrypoint /opt/cess/cess-node cesslab/cess-chain:premainnet --help
to get more information about the command options.
3.3 Check if the RPC node is synchronizing blocks normally
docker logs premainnet-rpc
The rpc node log is down below and start to synchronize blocks.
2025-04-30 09:47:13 CESS Node
2025-04-30 09:47:13 ✌️ version 0.10.0-c902006
2025-04-30 09:47:13 ❤️ by CESS LAB, 2017-2025
2025-04-30 09:47:13 📋 Chain specification: cess-premainnet
2025-04-30 09:47:13 🏷 Node name: better-ink-0467
2025-04-30 09:47:13 👤 Role: FULL
2025-04-30 09:47:13 💾 Database: RocksDb at /opt/cess/data/chains/cess-premainnet/db/full
2025-04-30 09:47:20 🏷 Local node identity is: 12D3KooWJJbr7xMCByzzHCUD8NXz52JDRC7pcXdf6otopvZCAreG
2025-04-30 09:47:20 Running libp2p network backend
2025-04-30 09:47:20 💻 Operating system: linux
2025-04-30 09:47:20 💻 CPU architecture: x86_64
2025-04-30 09:47:20 💻 Target environment: gnu
2025-04-30 09:47:20 💻 CPU: Intel(R) Xeon(R) Gold 6148 CPU @ 2.40GHz
2025-04-30 09:47:20 💻 CPU cores: 40
2025-04-30 09:47:20 💻 Memory: 257412MB
2025-04-30 09:47:20 💻 Kernel: 6.8.0-51-generic
2025-04-30 09:47:20 💻 Linux distribution: Ubuntu 22.04.5 LTS
2025-04-30 09:47:20 💻 Virtual machine: no
2025-04-30 09:47:20 📦 Highest known block at #2370
2025-04-30 09:47:20 Running JSON-RPC server: addr=0.0.0.0:9944,[::]:36421
2025-04-30 09:47:20 🏁 CPU single core score: 760.78 MiBs, parallelism score: 734.78 MiBs with expected cores: 8
2025-04-30 09:47:20 🏁 Memory score: 4.82 GiBs
2025-04-30 09:47:20 🏁 Disk score (seq. writes): 768.54 MiBs
2025-04-30 09:47:20 🏁 Disk score (rand. writes): 337.66 MiBs
2025-04-30 09:47:20 〽️ Prometheus exporter started at 0.0.0.0:9615
2025-04-30 09:47:20 discovered: 12D3KooWEpnboX55ceLkf2wqUQ6LBujEReiCqmvj5SLLdoJJP3oQ /ip4/172.17.0.1/tcp/30336/ws
2025-04-30 09:47:20 🔍 Discovered new external address for our node: /ip4/154.194.34.206/tcp/30336/ws/p2p/12D3KooWJJbr7xMCByzzHCUD8NXz52JDRC7pcXdf6otopvZCAreG
2025-04-30 09:47:23 [#2469] 🗳 Starting phase Off, round 2.
2025-04-30 09:47:23 [2469] 💸 new validator set of size 5 has been processed for era 1
2025-04-30 09:47:25 ⚙️ Syncing, target=#3711019 (5 peers), best: #2939 (0x87db…8c38), finalized #2936 (0xa33a…c890), ⬇ 757.8kiB/s ⬆ 5.7kiB/s
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