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multi-node-setup.md

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Multi-node setup

We can have metrics for a multi-node setup. At the moment, the setup comprises 5 nodes. Make sure you have all the dependencies installed to run this setup.

Dependencies

Note: make sure your local evmosd is the same version as the one you are testing on the setup. For example, if you want to test v10.0.1, check your evmosd version using the following command

evmosd version
10.0.1

Build

Build the localnet/node docker image running the command

make localnet-build

# user is prompted to provide the desired repository, commit hash and flags
Repository [evmos/ethermint]: evmos
Version or Commit Hash: v10.0.0-rc3
Extra flags:

This will prompt for user input for 2 parameters:

  • The commit hash, tag or branch of the Evmos repository to be used
  • Extra build flags

The image is built based on these parameters.

Run

Run the multi-node setup using the command

make localnet-start

# user is prompted to provide the desired repository
Repository [evmos/ethermint]: evmos

This will create the localnet/build directory where all node configurations sit. These are used as volumes for each of the nodes.

The genesis.json is generated and shared among all nodes. Then the chain starts, along with one transaction bot and the metrics infrastructure (graphana, prometheus, phlare).

Every time this command is executed, it starts a brand new chain. All previous data is deleted.

To access the Grafana dashboards go to http://localhost:8000.

Stop

To stop the multi-chain setup, run

make localnet-stop

Clean

You can clean all the multi-chain nodes files by running

make localnet-clean

This is also executed when running make localnet-start, so a new chain starts from scratch.