Intro for new developers and witnesses
This is a quick introduction to get new developers and witnesses up to speed on Peerplays blockchain. It is intended for witnesses plannig to join a live, already deployed blockchain.
Starting A Peerplays Node
For Ubuntu 14.04 LTS and up users, see this link first: https://github.com/cryptonomex/graphene/wiki/build-ubuntu
and then proceed with:
git clone https://github.com/pbsa/peerplays.git cd peerplays git submodule update --init --recursive cmake -DBOOST_ROOT="$BOOST_ROOT" -DCMAKE_BUILD_TYPE=Release . make ./programs/witness_node/witness_node
Launching the witness creates required directories. Next, stop the witness and continue.
vi witness_node_data_dir/config.ini p2p-endpoint = 0.0.0.0:9777 rpc-endpoint = 127.0.0.1:8090 seed-node = 220.127.116.11:59500
Start the witness back up
Upgrading A Peerplays Node
To minimize downtime of your peerplays node when upgrading, one upgrade idea was written in this steemit article: https://steemit.com/peerplays/@joseph/peerplays-update-setting-a-backup-witness-server-switching-servers
Then, in a separate terminal window, start the command-line wallet
To set your initial password to 'password' use:
>>> set_password password >>> unlock password
A list of CLI wallet commands is available here.
- chain-id - 5b37954aa0d33a8e0d57b084995c262a7c13dbc0693d3e96654e63ff45a9ceec
Register your username at the faucet address
Use the get_private_key_from_password command
You will to generate owner and active keys
get_private_key_from_password your_witness_username active the_key_you_received_from_the_faucet
This will reveal an array for your active key
import_keys into your cli_wallet
- use the second value in the array returned from the previous step for the private key
- be sure to wrap your username in quotes
- import the key with this command
import_key "your_witness_username" xxxx
Upgrade your account to lifetime membership
upgrade_account your_witness_username true
Create your witness (substitute the url for your witness information)
- place quotes around url
create_witness your_witness_username "url" true
Be sure to take note of the block_signing_key
IMPORTANT (issue below command using block_signing_key just obtained)
Compare this result to
You should see 3 pairs of keys. One of the pairs should match your block_signing_key and this is the one you will use in the next step!
Get your witness id
get_witness username (note the "id" for your config)
Modify your witness_node config.ini to include your witness id and private key pair.
Comment out the existing private-key before adding yours
vim witness_node_data_dir/config.ini witness-id = "1.6.x" private-key = ["block_signing_key","private_key_for_your_block_signing_key"]
start your witness back up
If it fails to start, try with these flags (not for permanent use)
./programs/witness_node/witness_node --resync --replay
Vote for yourself
vote_for_witness your_witness_account your_witness_account true true
Ask to be voted in!
Join @Peerplays Telegram group to find information about the witness group. http://t.me/@peerplayswitness
You will get logs that look like this:
2070264ms th_a application.cpp:506 handle_block ] Got block: #87913 time: 2017-05-27T16:34:30 latency: 264 ms from: bhuz-witness irreversible: 87903 (-10) 2071000ms th_a witness.cpp:204 block_production_loo ] Not producing block because slot has not yet arrived 2072000ms th_a witness.cpp:204 block_production_loo ] Not producing block because slot has not yet arrived 2073000ms th_a witness.cpp:201 block_production_loo ] Not producing block because it isn't my turn
Assuming you've received votes, you will start producing as a witness at the next maintenance interval (once per hour). You can check your votes with.
It's important for your witness to start when your system boots up. The filepaths here assume that you installed your witness into
Create a logfile to hold your stdout/err logging
sudo touch /var/log/peerplays.log
Save this file in your peerplays directory.
#!/bin/bash cd /home/ubuntu/peerplays ./programs/witness_node/witness_node &> /var/log/peerplays.log
Make it executable
chmod 744 /home/ubuntu/peerplays/start.sh
Create this file:
sudo vi /etc/systemd/system/peerplays.service
Note the path for start.sh. Change it to match where your start.sh file is if necessary.
[Unit] Description=Peerplays Witness After=network.target [Service] ExecStart=/home/ubuntu/peerplays/start.sh [Install] WantedBy = multi-user.target
Enable the service
sudo systemctl enable peerplays.service
Make sure you don't get any errors
sudo systemctl status peerplays.service
Stop your witness if it is currently running from previous steps, then start it with the service.
sudo systemctl start peerplays.service
Check your logfile for entries
tail -f /var/log/peerplays.log
Running specific tests
tests/chain_tests -t block_tests/name_of_test