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Version: Devnet - Playground

Full Node

Full nodes play a crucial role in the RollApp ecosystem by verifying the Sequencer state transitions. They provide an additional layer of security, accessability, and trust for users and eIBC fulfillers. Full nodes are also used as a first line of defense for sequencers against denial of service attacks using sentry architecture.

In this section we will go over the steps to setup and run a full node.

Requirements​

note

This guide assumes you've already setup your environment as outlined in the setup environment section.

Hardware Requirements​

  • A Linux or macOS operating system
  • At least 16GB of RAM
  • At least 100GB of free disk space
  • At least Dual CPU cores
  • At least 10 Mbps bandwidth

Initialize RollApp Directory​

In case you haven't already, use the following command to install the necessary binaries, initializes the RollApp configuration files and download the genesis file. You'll be prompted to provide a RollApp ID and select an environment:

note

This assumes the Rollapp you want to operate already exists. If not, you can create one by using the portal.

roller rollapp init

After successful initialization, you’ll see output similar to:

💈 RollApp 'rollapp_12345-1' configuration files have been successfully generated on your local machine. Congratulations!
danger

Make sure to save the generated addresses and mnemonic phrases securely. You'll need to fund these addresses to run the RollApp.

Setup RollApp Full Node​

The following command sets up the RollApp node. In our example, we'll be choosing to the full-node mode once prompted.

roller rollapp setup

Start The Full Node​

To start the RollApp full-node and data availability light node in the foreground, use the following command:

roller da-light-client start
roller rollapp start

After running this command, you will see an output similar to:

INFO  retrieving sequencer instance
💈 The data availability light node is running on your local machine!
💈 Light node endpoint: http://localhost:26658
💈 Log file path: ~/.roller/da-light-node/light_client.log
INFO  retrieving sequencer instance
💈 The RollApp full-node is running on your local machine!
💈 RollApp ID: rollapp_12345-1
💈 Endpoints:
💈 EVM RPC: http://0.0.0.0:8545
💈 Node RPC: http://0.0.0.0:26657
💈 Rest API: http://0.0.0.0:1317
💈 Log file path:  ~/.roller/rollapp/rollapp.log
💈 RollApp root dir:  ~/.roller/rollapp
💈 PID:  <Process ID>