Join the Testnet

See the testnet repo for information on the specific testnet you plan to join, including the correct version of the Akash binaries to use, details about the genesis file, and seeds/peers.

You need to install akashd and akashctl on your sever before you go further

Setting Up a New Node

These instructions are for setting up a brand new full node from scratch.

First, initialize the node and create the necessary config files:

akashd init <your_custom_moniker>

Monikers can contain only ASCII characters. Using Unicode characters will render your node unreachable.

You can edit this moniker later, in the ~/.akashd/config/config.toml file:

# A custom human readable name for this node
moniker = "<your_custom_moniker>"

Your full-node keeps unconfirmed transactions in its mempool. In order to protect it from spam, it is better to set a minimum-gas-prices that the transaction must meet in order to be accepted in your node's mempool. This parameter can be set in the following file ~/.akashd/config/app.toml.

The initial recommended min-gas-prices is 0.025akash, but you might want to change it later.

# This is a TOML config file.
# For more information, see
##### main base config options #####
# The minimum gas prices a validator is willing to accept for processing a
# transaction. A transaction's fees must meet the minimum of any denomination
# specified in this config (e.g. 10uatom).
minimum-gas-prices = "0.025akash"

Genesis & Seeds

Next we need to configure the p2p network and ensure that you have the right genesis.json file to join the testnet.

Copy the Genesis File

Fetch the testnet's genesis.json file into akashd's config directory.

curl -s > $HOME/.akashd/config/genesis.json

Note we use the latest directory in the testnet repo which contains details for the testnet like the latest version and the genesis file.

To verify the correctness of the configuration run:

akashd validate-genesis

Add Seed Nodes

Your node needs to know how to find peers. You'll need to add healthy seed nodes or persistent peers to $HOME/.akashd/config/config.toml. The net repo contains information about the seed nodes and sentry nodes maintained by the Akash team.

You can also ask for peers on the Validators Riot Room

For more information on the how and why of seeds and peers, you can read this great documentation from the Tendermint maintainers.

A Note on Gas and Fees

Transactions on the Akash Network need to include a transaction fee in order to be processed. This fee pays for the gas required to run the transaction. The formula is the following:

fees = ceil(gas * gasPrices)

The gas is dependent on the transaction. Different transaction require different amount of gas. The gas amount for a transaction is calculated as it is being processed, but there is a way to estimate it beforehand by using the auto value for the gas flag. Of course, this only gives an estimate. You can adjust this estimate with the flag --gas-adjustment (default 1.0) if you want to be sure you provide enough gas for the transaction.

The gasPrice is the price of each unit of gas. Each validator sets a min-gas-price value, and will only include transactions that have a gasPrice greater than their min-gas-price.

The transaction fees are the product of gas and gasPrice. As a user, you have to input 2 out of 3. The higher the gasPrice/fees, the higher the chance that your transaction will get included in a block.

::: tip For Akash testnets, the recommended gas-prices is 0.025akash. :::

Pruning of State

There are three strategies for pruning state, please be aware that this is only for state and not for block storage:

  1. PruneEverything: This means that all saved states will be pruned other than the current.

  2. PruneNothing: This means that all state will be saved and nothing will be deleted.

  3. PruneSyncable: This means that only the state of the last 100 and every 10,000th blocks will be saved.

By default every node is in PruneSyncable mode. If you would like to change your nodes pruning strategy then you must do so when the node is initialized. For example, if you would like to change your node to the PruneEverything mode then you can pass the ---pruning everything flag when you call akashd start.

Note: When you are pruning state you will not be able to query the heights that are not in your store. The sentry nodes the Akash team is running will be --pruning nothing and all data from the testnet will be queriable there.

Run a Full Node

Start the full node with this command:

akashd start --pruning everything

If you would like to run your node via systemd please see this guide.

You can use akashctl to check that everything is running smoothly:

akashctl status

View the status of the network with the testnet explorer.

Upgrade to Validator Node

You now have an active full node. What's the next step? You can upgrade your full node to become a Akash Validator. Validators have the ability to propose new blocks the Akash testnet. If you are interested you can continue onto the Validator Setup.