Validators

Note

This information can be used by STRATO node administrators.

Make Nodes the Validators

Info

For detailed information about validators and their management, see PBFT Consensus - Validator Nodes.

In previous topic, we covered the deployment of a 4 node network with the root node (Node 1) being the only validator.

Follow these steps to make the rest of nodes in the network validator nodes:

Make Node 2 the validator. Execute on Node 1 (because it is listed in blockstanbulAdmins):

./strato --blockstanbul-vote --recipient=<node2_address> --nonce=100 --nodes=node1.example.com:8080 --https

Wait for the validator node to confirm the vote and the address of Node 2 to appear in the list of validators. This may take up to 1 minute.

To monitor the list of validators, poll:
```
docker exec -i strato_strato_1 bash -c "tail -n 100 logs/strato-sequencer | grep showctx/validators | tail -n 1 | cut -d '|' -f 4"
```

Vote-in the other two nodes. Note the hosts of new validators being added in --nodes for every new node being added:

Note

Note the increased nonce for each of the blockstanbul-vote commands being called. The nonce for a given vote must be greater than the previous greatest nonce in the network, with the addition of the number of nodes listed in the --nodes parameter in the latest vote.

./strato --blockstanbul-vote --recipient=<node3_address> --nonce=150 --nodes=node1.example.com:8080,node2.example.com:8080 --https
# Keep polling the validators list until third validator is added:
docker exec -i strato_strato_1 bash -c "tail -n 100 logs/strato-sequencer | grep showctx/validators | tail -n 1 | cut -d '|' -f 4"

./strato --blockstanbul-vote --recipient=<node4_address> --nonce=200 --nodes=node1.example.com:8080,node2.example.com:8080,node3.example.com:8080 --https
# Keep polling the validators list until third validator is added:
docker exec -i strato_strato_1 bash -c "tail -n 100 logs/strato-sequencer | grep showctx/validators | tail -n 1 | cut -d '|' -f 4"