1. Introduction
1.1. What is a Validator Node?
A validator node is a server that participates in validating transactions and creating new blocks in the blockchain. In the Kroma project, validator nodes are crucial for maintaining the security and stability of the network.
1.2. Why Run a Validator Node?
Running a validator node allows you to participate in the Kroma network, earn rewards for validating transactions, and support the decentralization of the network.
1.3. Overview of the Process and Requirements
The process of running a validator node involves preparing the hardware, installing the necessary software, configuring the settings, and launching the node. It requires minimal technical knowledge and the appropriate hardware.
2. Prerequisites
2.1. Hardware Requirements
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CPU: minimum 4 cores
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RAM: minimum 16 GB
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Storage: minimum 1 TB SSD
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Network connection: high bandwidth and stability
2.2. Software Requirements
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Operating system: Ubuntu 20.04 LTS or another supported version of Linux
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Docker and Docker Compose
2.3. Security and Protection
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Firewall configuration
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Regular system updates and patches
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Using VPN for remote access
3. Installing Necessary Tools
3.1. Installing the Operating System
If you are using a VPS or dedicated server, make sure the latest version of Ubuntu or another supported OS is installed.
3.2. Installing Docker
bashКопировать код
sudo apt update
sudo apt install apt-transport-https ca-certificates curl software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable"
sudo apt update
sudo apt install docker-ce
sudo systemctl status docker
3.3. Installing Other Necessary Libraries and Tools
Installing Docker Compose:
bashКопировать код
sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
docker-compose --version
4. Preparation for Launch
4.1. Creating and Setting Up a Wallet
Create a wallet in the official Kroma app and securely store your private key.
4.2. Obtaining Tokens for Staking
Purchase or obtain the required amount of Kroma tokens for staking. The minimum amount of tokens for a validator is specified in the official project documentation.
4.3. Configuring Configuration Files
Download a sample configuration file from the official Kroma repository and configure it according to your parameters.
5. Launching the Validator Node
5.1. Downloading and Running the Blockchain Client
Download the Kroma node image and run it using Docker:
bashКопировать код
docker pull kroma/noded:latest
docker run -d --name kroma-validator -v /path/to/config:/config -p 26656:26656 -p 26657:26657 kroma/noded
5.2. Initial Synchronization
The synchronization process may take several hours. Check the synchronization status:
bashКопировать код
docker logs -f kroma-validator
5.3. Checking Node Status
Make sure the node is synchronized and working correctly:
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curl http://localhost:26657/status
6. Node Configuration and Management
6.1. Basic Commands for Management
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Start the node:
bashКопировать код docker start kroma-validator -
Stop the node:
bashКопировать код docker stop kroma-validator -
Restart the node:
bashКопировать код docker restart kroma-validator
6.2. Monitoring Node Performance
Use built-in monitoring tools like Prometheus and Grafana.
6.3. Updating and Maintenance
Regularly check for node updates and update Docker images:
bashКопировать код
docker pull kroma/noded:latest
docker stop kroma-validator
docker rm kroma-validator
docker run -d --name kroma-validator -v /path/to/config:/config -p 26656:26656 -p 26657:26657 kroma/noded
7. Staking and Delegation
7.1. What is Staking?
Staking is the process of locking tokens in the network to ensure its security and functioning. Validators receive rewards for this.
7.2. How to Delegate Your Tokens
Use the official Kroma interface or CLI to delegate tokens to your validator.
7.3. Managing Delegated Tokens
Check the balance and earned rewards using CLI commands or the official interface.
8. Troubleshooting
8.1. Common Issues and Their Solutions
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Node not synchronizing: check network connection and configuration files.
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Node not starting: check logs using
docker logs kroma-validator.
8.2. Logs and Debugging
To get logs, use the command:
bashКопировать код
docker logs kroma-validator
8.3. Questions and Answers
Visit the official forum and FAQ section on the Kroma website for additional help.
9. Conclusion
9.1. Best Practices for Node Management
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Regularly update the software.
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Maintain system security.
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Monitor the performance and status of the node.
9.2. Useful Resources and Links
9.3. Future Steps and Node Development
Explore new features and functions added to Kroma to stay updated with all developments and improvements.
Appendices
A. Glossary of Terms
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Validator Node: a server participating in transaction validation.
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Staking: the process of locking tokens to ensure network security.
B. Links to Official Documents and Forums
C. Configuration File Templates
A sample configuration file can be found in the official Kroma repository.