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Update a Validator Node

Update​

Following is the desired update procedure for validator nodes, described as step-by-step instructions.

Update procedure​

  • Download the latest Polygon Edge binary from the official GitHub releases
  • Stop the Polygon Edge service ( example: sudo systemctl stop polygon-edge.service )
  • Replace the existing polygon-edge binary with the downloaded one ( example: sudo mv polygon-edge /usr/local/bin/ )
  • Check if correct polygon-edge version is in place by running polygon-edge version - it should correspond to the release version
  • Check the release documentation if there are any backwards compatibility steps needed to be done before starting polygon-edge service
  • Start polygon-edge service ( example: sudo systemctl start polygon-edge.service )
  • Finally, check the polygon-edge log output and make sure everything is running without any [ERROR] logs
danger

When there is a breaking release, this update procedure must be performed on all nodes as the currently running binary is not compatible with the new release.

This means that the chain must be halted for a short period of time ( until polygon-edge binaries are replaced and service restarted ) so plan accordingly.

You can use tools like Ansible or some custom script to perform the update efficiently and minimize chain downtime.