Node Requirements

![namadagithab](https://cms.crouton.digital/uploads/namadagithab_53ef580f0e.png) ### 🖥️ Hardware Requirements: **Description:** *This section covers the recommended hardware requirements for engaging with Namada for validators node.* Node Requirements

Node Type	CPU	RAM	SSD
Validator	8 cores	16 GB	1 TB

### ⚙️ Installation of Required Binaries: **Description:** *This section provides instructions on how to install the necessary software components to run and manage a Namada node.*

Install Namada

- **Set the desired version**: ```bash NAMADA_TAG="v1.0.0" ``` - **Download and extract**: ```bash curl -L -o namada.tar.gz "https://github.com/anoma/namada/releases/download/$NAMADA_TAG/namada-${NAMADA_TAG}-Linux-x86_64.tar.gz" tar -xvf namada.tar.gz ``` - **Move to /usr/local/bin**: ```bash sudo mv namada-${NAMADA_TAG}-Linux-x86_64/namad* /usr/local/bin/ ``` - **Cleanup**: ```bash rm -rf namada-${NAMADA_TAG}-Linux-x86_64 namada.tar.gz ``` - **Verify the installation**: ```bash namada --version ```

Install CometBFT

- **Set the desired version**: ```bash COMETBFT_TAG="v0.37.11" ``` - **Download and extract to a specific folder**: ```bash curl -L -o cometbft.tar.gz "https://github.com/cometbft/cometbft/releases/download/$COMETBFT_TAG/cometbft_${COMETBFT_TAG#v}_linux_amd64.tar.gz" mkdir cometbft_temp && tar -xvf cometbft.tar.gz -C cometbft_temp/ ``` - **Move to /usr/local/bin**: ```bash sudo mv cometbft_temp/cometbft /usr/local/bin/ ``` - **Cleanup**: ```bash rm -rf cometbft_temp cometbft.tar.gz ``` - **Verify the installation**: ```bash cometbft version ```

### 🌟 Node Initialization: **Description:** *Here, you'll find steps on how to set up and initialize your node, whether you're a pre-genesis validator or aiming to run a full node.*

Preparation

- **Create the required directories**: ```bash mkdir -p $HOME/.local/share/namada/pre-genesis/ ``` If you have a pre-genesis file, place it inside the directory. For instance, if your alias is **CroutonDigital**, the file should be located at **$HOME/.local/share/namada/pre-genesis/CroutonDigital/**. - **Set the chain ID**: ```bash CHAIN_ID=namada.5f5de2dd1b88cba30586420 NAMADA_NETWORK_CONFIGS_SERVER="https://github.com/anoma/namada-mainnet-genesis/releases/download/mainnet-genesis" echo "export CHAIN_ID=$CHAIN_ID" >> ~/.bashrc echo "export NAMADA_NETWORK_CONFIGS_SERVER=$NAMADA_NETWORK_CONFIGS_SERVER" >> ~/.bashrc source ~/.bashrc ``` **Guidance:** - If you possess a pre-genesis file, proceed to the "Initialization for Pre-Genesis Validators" section. - If you don't have a pre-genesis file but aim to be a validator post-genesis or run a full node, proceed to "Initialization for Full Nodes & Post-Genesis Validators".

For Pre-Genesis Validators

- **Set your validator alias**: ```bash ALIAS=$(basename $(ls -d $HOME/.local/share/namada/pre-genesis/*/) | head -n 1) echo "export ALIAS=$ALIAS" >> ~/.bashrc ``` - **Join the network as a validator**: ```bash namada client utils join-network --chain-id $CHAIN_ID --genesis-validator $ALIAS ``` - **Add peers**: ```bash peers="tcp://f103a0f6c680f51ec4b5441640a1a4687fe3f84b@206.168.190.35:26656" sed -i.bak -e "s|^persistent_peers *=.*|persistent_peers = \"$peers\"|" $HOME/.local/share/namada/$CHAIN_ID/config.toml ``` - **Wasm recover**: ```bash rm -rf $HOME/.local/share/namada/$CHAIN_ID/wasm && \ curl https://testnet.namada.tududes.com/wasm.tar.gz | tar -xz -C $HOME/.local/share/namada/$CHAIN_ID ``` - **Database recover**: ``` SOON ```

For Full Nodes & Intending Post-Genesis Validators

- **Join the network**: ```bash namada client utils join-network --chain-id $CHAIN_ID ``` - **Add peers**: ```bash peers="tcp://f103a0f6c680f51ec4b5441640a1a4687fe3f84b@206.168.190.35:26656" sed -i.bak -e "s|^persistent_peers *=.*|persistent_peers = \"$peers\"|" $HOME/.local/share/namada/$CHAIN_ID/config.toml ``` - **Wasm recover**: ```bash rm -rf $HOME/.local/share/namada/$CHAIN_ID/wasm && \ curl https://testnet.namada.tududes.com/wasm.tar.gz | tar -xz -C $HOME/.local/share/namada/$CHAIN_ID ``` - **Database recover**: ``` SOON ```

### 🔄 Service Creation for Node Startup: **Description:** *This section covers how to configure your node to run as a service, ensuring it starts correctly upon boot or after any potential crashes.*

Service Creation and Monitoring

- **Create the Systemd Service File**: ```bash sudo tee /etc/systemd/system/namadad.service > /dev/null < ### 🌐 Additional Steps for Post-Genesis Validators: **Description:** *If you intend to become a validator after the network genesis, this section provides the additional steps required.*

Setup for Post-Genesis Validators

- **Check for full synchronization**: Before proceeding, ensure that your node is fully synchronized. You can check the synchronization status with: ```bash curl -s localhost:26657/status | jq .result.sync_info.catching_up ``` Wait until you see `"catching_up": false` before proceeding to the next steps. - **Set Validator Alias**: ```bash ALIAS= echo "export ALIAS=$ALIAS" >> ~/.bashrc ``` - **Generate a Validator Account**: ```bash namada wallet gen --alias $ALIAS ``` - **Show wallets list**: ```bash namada wallet list --keys ``` - **Initialize the Validator Account**: ```bash namada client init-validator \ --alias $ALIAS \ --account-keys $ALIAS \ --signing-keys $ALIAS \ --commission-rate \ --max-commission-rate-change ```

### 📸 Snapshot **Description:** *Follow these steps to restore your node using a snapshot.*

Node Requirements

Snapshot Type	Latest Block Time	Latest Block Height	Earliest Block Height	Snapshot Size	Indexer Status
Archive	{{ LATEST_BLOCK_TIME }}	{{ LATEST_BLOCK_HEIGHT }}	{{ EARLIEST_BLOCK_HEIGHT }}	{{ SNAPSHOT_SIZE }}	🟢

Restore Node from Snapshot

- **Install lz4 (if needed):** Ensure that lz4 is installed to decompress the snapshot. ```bash sudo apt install lz4 ``` - **Stop the Namada service:** To safely replace the old data, stop the running service. ```bash sudo systemctl stop namadad ``` - **Backup priv_validator_state.json:** Save your current priv_validator_state.json file to avoid losing the validator's signing state. ```bash cp $HOME/.local/share/namada/namada.5f5de2dd1b88cba30586420/cometbft/data/priv_validator_state.json $HOME/priv_validator_state.json ``` - **Remove old data:** Clean up the old database, WASM, and data directories. ```bash rm -rf ~/.local/share/namada/namada.5f5de2dd1b88cba30586420/cometbft/data ~/.local/share/namada/namada.5f5de2dd1b88cba30586420/{db,wasm} ``` - **Download the latest snapshot:** Fetch the latest snapshot from the trusted source. ```bash wget https://storage.crouton.digital/mainnet/namada/snapshots/namada_latest.tar.lz4 lz4 -d -c namada_latest.tar.lz4 | tar -xf - -C $HOME/.local/share/namada/namada.5f5de2dd1b88cba30586420 ``` - **Restore priv_validator_state.json:** Move the previously backed-up priv_validator_state.json file back to its original location. ```bash mv $HOME/priv_validator_state.json $HOME/.local/share/namada/namada.5f5de2dd1b88cba30586420/cometbft/data/priv_validator_state.json ``` - **Restart the Namada service:** Start the service and monitor the logs to ensure everything works correctly. ```bash sudo systemctl restart namadad && journalctl -u namadad -f -o cat ```