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Official documentation:
Explorer:
To set up monitoring for your validator node navigate to Set up monitoring and alerting for mande validator
To migrate your validator to another machine read Migrate your validator to another machine
Like any Cosmos-SDK chain, the hardware requirements are pretty modest.
- 4x CPUs; the faster clock speed the better
- 8GB RAM
- 100GB of storage (SSD or NVME)
- Permanent Internet connection (traffic will be minimal during testnet; 10Mbps will be plenty - for production at least 100Mbps is expected)
- 8x CPUs; the faster clock speed the better
- 64GB RAM
- 1TB of storage (SSD or NVME)
- Permanent Internet connection (traffic will be minimal during testnet; 10Mbps will be plenty - for production at least 100Mbps is expected)
You can setup your mande fullnode in few minutes by using automated script below. It will prompt you to input your validator node name!
wget -O mande.sh https://raw.githubusercontent.com/kj89/testnet_manuals/main/mande/mande.sh && chmod +x mande.sh && ./mande.sh
You can follow manual guide if you better prefer setting up node manually
When installation is finished please load variables into system
source $HOME/.bash_profile
Next you have to make sure your validator is syncing blocks. You can use command below to check synchronization status
mande-chaind status 2>&1 | jq .SyncInfo
You can state sync your node in minutes by running commands below
SNAP_RPC=http://38.242.199.93:24657
peers="[email protected]:24656"
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" ~/.mande-chain/config/config.toml
LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \
BLOCK_HEIGHT=$((LATEST_HEIGHT - 500)); \
TRUST_HASH=$(curl -s "$SNAP_RPC/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash)
echo $LATEST_HEIGHT $BLOCK_HEIGHT $TRUST_HASH
sed -i.bak -E "s|^(enable[[:space:]]+=[[:space:]]+).*$|\1true| ; \
s|^(rpc_servers[[:space:]]+=[[:space:]]+).*$|\1\"$SNAP_RPC,$SNAP_RPC\"| ; \
s|^(trust_height[[:space:]]+=[[:space:]]+).*$|\1$BLOCK_HEIGHT| ; \
s|^(trust_hash[[:space:]]+=[[:space:]]+).*$|\1\"$TRUST_HASH\"| ; \
s|^(seeds[[:space:]]+=[[:space:]]+).*$|\1\"\"|" $HOME/.mande-chain/config/config.toml
mande-chaind tendermint unsafe-reset-all --home /root/.mande-chain --keep-addr-book
systemctl restart mande-chaind && journalctl -u mande-chaind -f -o cat
To create new wallet you can use command below. Don’t forget to save the mnemonic
mande-chaind keys add $WALLET
(OPTIONAL) To recover your wallet using seed phrase
mande-chaind keys add $WALLET --recover
To get current list of wallets
mande-chaind keys list
Add wallet and valoper address into variables
MANDE_WALLET_ADDRESS=$(mande-chaind keys show $WALLET -a)
MANDE_VALOPER_ADDRESS=$(mande-chaind keys show $WALLET --bech val -a)
echo 'export MANDE_WALLET_ADDRESS='${MANDE_WALLET_ADDRESS} >> $HOME/.bash_profile
echo 'export MANDE_VALOPER_ADDRESS='${MANDE_VALOPER_ADDRESS} >> $HOME/.bash_profile
source $HOME/.bash_profile
Navigate to https://discord.gg/ms3tWhedvp #faucet-requests
channel
Before creating validator please make sure that you have at least 1 know (1 know is equal to 1000000 mand) and your node is synchronized
To check your wallet balance:
mande-chaind query bank balances $MANDE_WALLET_ADDRESS
If your wallet does not show any balance than probably your node is still syncing. Please wait until it finish to synchronize and then continue
To create your validator run command below
mande-chaind tx staking create-validator \
--amount 1000000mand \
--from $WALLET \
--commission-max-change-rate "0.01" \
--commission-max-rate "0.2" \
--commission-rate "0.07" \
--min-self-delegation "1" \
--pubkey $(mande-chaind tendermint show-validator) \
--moniker $NODENAME \
--chain-id $MANDE_CHAIN_ID
To protect you keys please make sure you follow basic security rules
Good tutorial on how to set up ssh keys for authentication to your server can be found here
Start by checking the status of ufw.
sudo ufw status
Sets the default to allow outgoing connections, deny all incoming except ssh and 26656. Limit SSH login attempts
sudo ufw default allow outgoing
sudo ufw default deny incoming
sudo ufw allow ssh/tcp
sudo ufw limit ssh/tcp
sudo ufw allow ${MANDE_PORT}656,${MANDE_PORT}660/tcp
sudo ufw enable
To monitor and get alerted about your validator health status you can use my guide on Set up monitoring and alerting for mande validator
This script will help you to estimate how much time it will take to fully synchronize your node
It measures average blocks per minute that are being synchronized for period of 5 minutes and then gives you results
wget -O synctime.py https://raw.githubusercontent.com/kj89/testnet_manuals/main/mande/tools/synctime.py && python3 ./synctime.py
[[ $(mande-chaind q staking validator $MANDE_VALOPER_ADDRESS -oj | jq -r .consensus_pubkey.key) = $(mande-chaind status | jq -r .ValidatorInfo.PubKey.value) ]] && echo -e "\n\e[1m\e[32mTrue\e[0m\n" || echo -e "\n\e[1m\e[31mFalse\e[0m\n"
mande-chaind q staking validators -oj --limit=3000 | jq '.validators[] | select(.status=="BOND_STATUS_BONDED")' | jq -r '(.tokens|tonumber/pow(10; 6)|floor|tostring) + " \t " + .description.moniker' | sort -gr | nl
curl -sS http://localhost:${MANDE_PORT}657/net_info | jq -r '.result.peers[] | "\(.node_info.id)@\(.remote_ip):\(.node_info.listen_addr)"' | awk -F ':' '{print $1":"$(NF)}'
Check logs
journalctl -fu mande-chaind -o cat
Start service
sudo systemctl start mande-chaind
Stop service
sudo systemctl stop mande-chaind
Restart service
sudo systemctl restart mande-chaind
Synchronization info
mande-chaind status 2>&1 | jq .SyncInfo
Validator info
mande-chaind status 2>&1 | jq .ValidatorInfo
Node info
mande-chaind status 2>&1 | jq .NodeInfo
Show node id
mande-chaind tendermint show-node-id
List of wallets
mande-chaind keys list
Recover wallet
mande-chaind keys add $WALLET --recover
Delete wallet
mande-chaind keys delete $WALLET
Get wallet balance
mande-chaind query bank balances $MANDE_WALLET_ADDRESS
Transfer funds
mande-chaind tx bank send $MANDE_WALLET_ADDRESS <TO_MANDE_WALLET_ADDRESS> 10000000mand
mande-chaind tx gov vote 1 yes --from $WALLET --chain-id=$MANDE_CHAIN_ID
Delegate stake
mande-chaind tx staking delegate $MANDE_VALOPER_ADDRESS 10000000mand --from=$WALLET --chain-id=$MANDE_CHAIN_ID --gas=auto
Redelegate stake from validator to another validator
mande-chaind tx staking redelegate <srcValidatorAddress> <destValidatorAddress> 10000000mand --from=$WALLET --chain-id=$MANDE_CHAIN_ID --gas=auto
Withdraw all rewards
mande-chaind tx distribution withdraw-all-rewards --from=$WALLET --chain-id=$MANDE_CHAIN_ID --gas=auto
Withdraw rewards with commision
mande-chaind tx distribution withdraw-rewards $MANDE_VALOPER_ADDRESS --from=$WALLET --commission --chain-id=$MANDE_CHAIN_ID
Edit validator
mande-chaind tx staking edit-validator \
--moniker=$NODENAME \
--identity=<your_keybase_id> \
--website="<your_website>" \
--details="<your_validator_description>" \
--chain-id=$MANDE_CHAIN_ID \
--from=$WALLET
Unjail validator
mande-chaind tx slashing unjail \
--broadcast-mode=block \
--from=$WALLET \
--chain-id=$MANDE_CHAIN_ID \
--gas=auto
This commands will completely remove node from server. Use at your own risk!
sudo systemctl stop mande-chaind
sudo systemctl disable mande-chaind
sudo rm /etc/systemd/system/mande* -rf
sudo rm $(which mande-chaind) -rf
sudo rm $HOME/.mande-chain* -rf
sudo rm $HOME/mande -rf
sed -i '/MANDE_/d' ~/.bash_profile