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lava stateSync added #27

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Sep 23, 2023
Merged

lava stateSync added #27

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fad8218
stateSyncLava.ts created
redwest88 Sep 23, 2023
bb7986a
state-sync.mdx created
redwest88 Sep 23, 2023
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28 changes: 28 additions & 0 deletions docs/lava-network/sync/state-sync.mdx
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---
sidebar_position: 2
description: State Sync
---

# State Sync

> State Sync allows new nodes to join a blockchain network by downloading a recent snapshot of the application state instead of processing all historical blocks. This approach is typically faster and requires less data, as the application state is usually more concise than the entire block history.

import SelectPaste from '@site/src/components/SelectPaste';

import { stateSync } from '@site/src/components/SelectPaste/stateSyncLava.ts';

export let endpoints = [
'https://lava.rpc.t.anode.team',
'https://rpc.lava-testnet-2.lava.aviaone.com',
'https://lava-testnet-rpc.itrocket.net:443',
'https://lava-testnet.rpc.kjnodes.com',
'https://t-lava.rpc.utsa.tech',
'https://lava.rpc.liveraven.net',
'https://lava-testnet.nodejumper.io:443',
'https://rpc-t.lava.nodestake.top',
'https://rpc.lava-t.nodexcapital.com',
'https://lava-testnet-rpc.polkachu.com',
'https://lava-testnet.rpc.stakevillage.net:443',
];

<SelectPaste endpoints={endpoints} codeTemplate={stateSync} tip="Click on any RPC to paste it into the code block." />
22 changes: 22 additions & 0 deletions src/components/SelectPaste/stateSyncLava.ts
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export const stateSync = `sudo systemctl stop lavad

cp $HOME/.lava/data/priv_validator_state.json $HOME/.lava/priv_validator_state.json.backup
lavad tendermint unsafe-reset-all --home $HOME/.lava --keep-addr-book

CUSTOM_RPC="{{endpoint}}"

LATEST_HEIGHT=$(curl -s $CUSTOM_RPC/block | jq -r .result.block.header.height)
BLOCK_HEIGHT=$((LATEST_HEIGHT - 1500))
TRUST_HASH=$(curl -s "$CUSTOM_RPC/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash)

echo $LATEST_HEIGHT $BLOCK_HEIGHT $TRUST_HASH

sed -i 's|^enable *=.*|enable = true|' $HOME/.lava/config/config.toml
sed -i 's|^rpc_servers *=.*|rpc_servers = "'$CUSTOM_RPC,$CUSTOM_RPC'"|' $HOME/.lava/config/config.toml
sed -i 's|^trust_height *=.*|trust_height = '$BLOCK_HEIGHT'|' $HOME/.lava/config/config.toml
sed -i 's|^trust_hash *=.*|trust_hash = "'$TRUST_HASH'"|' $HOME/.lava/config/config.toml

mv $HOME/.lava/priv_validator_state.json.backup $HOME/.lava/data/priv_validator_state.json

sudo systemctl restart lavad
sudo journalctl -fu lavad -o cat`;