Cardano Node 1.31.0
Cardano node version 1.31.0 introduces a number of new features and provides performance improvements, including
reducing default logging information, and optimising memory and time behaviour. It also provides support for improved rewards logging in db-sync, includes a new CLI command to query stake pools, enhances the transaction build CLI command, fixes an issue where connections were dropped when using query tip , and provides various other CLI enhancements. It allows signatures to be specified when spending from pre-Plutus time-lock/multi-signature scripts, improves error logging for Plutus scripts, adds new logging modes, allows the size of the mempool to be configured, provides support for multiple versions of Plutus, and improves networking behaviour and robustness.
It is recommended that all users upgrade to this new version.
Breaking Changes
- Update min utxo calculation cli command #3181
calculate-min-req-utxorequires a transaction output (TxOut era) instead of aValuein order to calculate the min required UTxO in the Alonzo era. This is required in the Alonzo era, and the change is made everywhere for consistency.
Technical Specification
Minimum System Requirements
- An Intel or AMD x86 processor with two or more cores, at 1.6GHz or faster (2GHz or faster for a stake pool or relay)
- 12GB of RAM
- 20GB of free storage
if your servers have only 8G of RAM you can configure the SWAP file
free -m
next command will alocate 3G for SWAP file (you can configure what value you want - just replace 3G with your needs)
sudo fallocate -l 3G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
now to make it permanently type
sudo nano /etc/fstab
and add to the end, as a new line
/swapfile swap swap defaults 0 0
save the file (Ctrl + x then Y then ENTER)
check if the configuration was successfully
free -m
How to update to 1.31.0
bofore to start it’s better also to update the server/OS
sudo apt-get update
sudo apt-get upgrade
sudo reboot
- perform a snapshot for server (if u have this option offered by your provider) before to start the update
- update the Relays first (one by one)
BUILDING THE NODE
- stop the node :
sudo systemctl stop cnode
- build the node
cd ~/git
sudo rm -R cardano-node
git clone https://github.com/input-output-hk/cardano-node
cd cardano-node
git fetch --tags --all
git checkout 1.31.0
echo -e "package cardano-crypto-praos\n flags: -external-libsodium-vrf" > cabal.project.local
$CNODE_HOME/scripts/cabal-build-all.sh
at the end you should see:
Copying unit to /home/user/.cabal/bin/
Copying cardano-topology to /home/user/.cabal/bin/
Copying locli to /home/user/.cabal/bin/
Copying cardano-submit-api to /home/user/.cabal/bin/
Copying plutus-example to /home/user/.cabal/bin/
Copying cardano-cli to /home/user/.cabal/bin/
Copying cardano-node to /home/user/.cabal/bin/
Copying cardano-node-chairman to /home/user/.cabal/bin/
Copying tx-generator to /home/user/.cabal/bin/
:~/git/cardano-node$
this time it took ~60 minutes (a lot of things were compiled) 
START THE NODE
sudo systemctl start cnode
/git/cardano-node$ sudo systemctl status cnode
Loaded: loaded (/etc/systemd/system/cnode.service; enabled; vendor preset: enabled)
Active: active (running) since Wed 2021-11-10 19:44:32 CET; 58s ago
Main PID: 53871 (cnode.sh)
Tasks: 10 (limit: 4915)
CGroup: /system.slice/cnode.service
├─53871 /bin/bash /opt/cardano/cnode/scripts/cnode.sh
└─53968 cardano-node run --topology /opt/cardano/cnode/files/topology.json --config /opt/cardano/cnode/files/config.json --database-path /opt/cardano/cnode/db --socket-path /opt/
Nov 10 19:44:32 vmi438734.contaboserver.net systemd[1]: Started Cardano Node.
Nov 10 19:44:33 vmi438734.contaboserver.net cnode[53871]: WARN: A prior running Cardano node was not cleanly shutdown, socket file still exists. Cleaning up.
Nov 10 19:44:34 vmi438734.contaboserver.net cnode[53871]: Node configuration: NodeConfiguration {ncNodeIPv4Addr = Just 0.0.0.0, ncNodeIPv6Addr = Nothing, ncNodePortNumber = Just 6000, ncCon
lines 1-12/12 (END)
check the status and the revision number, should be 2cbe363874d0261bc62f52185cf23ed492cf4859
438734:~/git/cardano-node$ cardano-node --version
cardano-node 1.31.0 - linux-x86_64 - ghc-8.10
git rev 2cbe363874d0261bc62f52185cf23ed492cf4859
i438734:~/git/cardano-node$ cardano-cli --version
cardano-cli 1.31.0 - linux-x86_64 - ghc-8.10
git rev 2cbe363874d0261bc62f52185cf23ed492cf4859
Thank you,
