Decentr

Build and synchronize node from state-sync service

Prerequisites

• Ubuntu 20.04 LTS or newer

• Go 1.18.x or newer - Installation guide here.

• JSON processor jq - sudo apt install jq

• Essential Build Tools - sudo apt install build-essential

Video demonstrates steps described below.

Build Decentr Node

git clone https://github.com/Decentr-net/decentr && cd decentr
git checkout v1.6.2
make install

Initialize Decentr Node

decentrd init myNode --chain-id mainnet-3
wget -O ${HOME}/.decentr/config/addrbook.json https://files.chaintools.tech/chains/decentr/addrbook.json
wget -O ${HOME}/.decentr/config/genesis.json https://raw.githubusercontent.com/Decentr-net/mainnets/master/3.0/genesis.json

Add Seed Nodes to config

sed -E -i 's/seeds = \".*\"/seeds = \"[e-mail]:26656,[e-mail]:26656,[e-mail]:26656,[e-mail]:26656,[e-mail]:26656,[e-mail]:26656,[e-mail]:26656,[e-mail]:26656,[e-mail]:26656,[e-mail]:26656\"/' $HOME/.decentr/config/config.toml

Configure state-sync

SNAP_RPC="http://75.119.157.167:28657"
SNAP_RPC2="http://75.119.157.167:28657"

LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \
BLOCK_HEIGHT=$((LATEST_HEIGHT - 1000)); \
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_RPC2\"| ; \
s|^(trust_height[[:space:]]+=[[:space:]]+).*$|\1$BLOCK_HEIGHT| ; \
s|^(trust_hash[[:space:]]+=[[:space:]]+).*$|\1\"$TRUST_HASH\"| ; \
s|^(seeds[[:space:]]+=[[:space:]]+).*$|\1\"\"|" $HOME/.decentr/config/config.toml

Start Decentr Node

decentrd start

NOTE: It might take 5-10 minutes for node to catch-up with RPC and download state-sync snapshot.