On-chain randomness activation on CORE

[varasev]

Hello @poa-validators

In February we activated on-chain randomness on Sokol: On-chain randomness activation on SOKOL

Now we propose to activate the same RandomAuRa contract on POA Core.

To activate it, spec.json and Parity to v2.7.2 need to be updated on Core validator nodes. The corresponding change in spec.json was made in https://github.com/poanetwork/poa-chain-spec/pull/139/files

The randomness activation in POA Core is going to be at block 14350721 (Tuesday, 31-Mar-2020 ~05:51 pm UTC).

For that, we need to update both Parity (to v2.7.2) and spec.json. Please follow the steps below:

1. SSH login to your Core node.
2. Stop Parity service

sudo systemctl stop poa-parity

3. Switch to home directory (NOTE: if you’re updating a bootnode, the path is /home/bootnode)

cd /home/validator
pwd

output should be

/home/validator

4. Check your node.toml - it should contain force_sealing = true line:

grep force_sealing node.toml

output should be

force_sealing = true

5. Remove older backups

sudo rm -rf backups-version

6. Create a new backup

sudo mkdir backups-version
sudo touch backups-version/BEFORE-2.7.2
BKPFLDR="backups-version/$(date '+%Y%m%dT%H%M%S' -u)"
sudo mkdir -p "$BKPFLDR"
sudo mv parity spec.json "$BKPFLDR"

7. Switch to validator user (NOTE: if you’re updating a bootnode, username should be bootnode)

sudo -i -u validator

8. Download new parity binary

curl -LO 'https://releases.parity.io/ethereum/v2.7.2/x86_64-unknown-linux-gnu/parity'

9. Check binary integrity

echo 'fe992f0c9b229a4406e82b9ff6d388f4acb4d6ce2782cb79b7bc379e7965ae34 parity' | sha256sum -c

output should be

parity: OK

10. Set permission to execute the binary

chmod +x parity

11. Download new spec file

curl -LO 'https://raw.githubusercontent.com/poanetwork/poa-chain-spec/core/spec.json'

12. Check that new spec contains an activation block set to 14350721

grep 14350721 spec.json

output should be

          "14350721": "0x67e90a54AeEA85f21949c645082FE95d77BC1E70"

13. Login back to sudo-enabled user

exit

14. Restart services

sudo systemctl start poa-parity && sleep 10 && sudo systemctl restart poa-netstats

15. Check that your node is “green” in netstats https://core-netstat.poa.network (this may take a couple of minutes)
16. Wait to see if your node produces new blocks https://blockscout.com/poa/core

[miran]

Activated on Ilmira Nugumanova’s node

[igorbarinov]

Igor Barinov
Ilmira Nugumanova
John H. LeGassic
Jim O’Regan
Ian Ferrell
Henry Vishneuski
Stephen Arsenault
Alex Emelyanov
Peter Chen
Adam Kagy
Siarhei Barylau
Oxana Kunets
Kiryl Ihnatsyeu
Michael Milirud
Irvin Cardenas
Kristina Yevseyeva

John D. Storey

[varasev]

Dear @poa-validators - we only have two days left before Randomness activation on Core. Please, don’t forget to update your node and spec.json following the instruction above.

[ftl_C-Ian]

Ian Ferrell node is updated.

[ajkagy]

Adam Kagy node updated

[henryvishnevsky]

Core validator node updated.

[Micwebnet]

Michael Milirud code validator node updated. Confirmed to work via netstats and blockscout.

[igorbarinov]

Dear,

• Irvin Cardenas @irvinxyz
• Kristina Yevseyeva @kristina

please follow the instruction and update your nodes