如何启动主网节点

zhongqiuwood

三种方式

1. 使用exchaind+快照

# 1. build exchaind  使用release最新版本
# latest_version可以通过链接 https://github.com/okx/exchain/releases/latest 查看
git clone -b ${latest_version} https://github.com/okx/exchain.git 
cd exchain
make mainnet # 编译主网(默认rocksdb)

注1：务必用 make mainnet 编译
注2：latest_version可以通过链接 https://github.com/okx/exchain/releases/latest 查看
注3：如果您第一次运行exchaind，请先安装rocksdb，我们已经提供了一个rocksdb的安装命令make rocksdb，您可以进入exchain文件夹进行使用。
注4：如果在编译rocksdb过程中遇到问题，请参考该链接

# 2. Initialize exchain node configurations
export EXCHAIND_PATH=~/.exchaind (或者其他目录)
exchaind init your_custom_moniker --chain-id exchain-66 --home ${EXCHAIND_PATH}

# 3. download snapshot
rm -rf ${EXCHAIND_PATH}/data
cd ${EXCHAIND_PATH}
wget https://okg-pub-hk.oss-cn-hongkong.aliyuncs.com/cdn/okc/snapshot/mainnet-$version-$date-$height-rocksdb.tar.gz
tar -zxvf mainnet-$version-$date-$height-rocksdb.tar.gz

# 4. start exchaind
# rpc节点启动(--chain-id默认为exchain-66，--db_backend默认为rocksdb)
exchaind start --home ${EXCHAIND_PATH}  
# 超级节点(如果是validator) 启动
exchaind start --node-mode=val --home ${EXCHAIND_PATH}
# 归档节点
exchaind start --pruning=nothing --iavl-enable-async-commit=false --fast-query=false --home ${EXCHAIND_PATH}

2. 使用exchaind+创世块文件

# 1. build exchain  使用release最新版本
# latest_version可以通过链接 https://github.com/okx/exchain/releases/latest 查看
git clone -b ${latest_version} https://github.com/okx/exchain.git 
cd exchain
make mainnet # 编译主网，默认WITH_ROCKSDB=true

# 2. Initialize exchain node configurations
export EXCHAIND_PATH=~/.exchaind (或者其他目录)
exchaind init your_custom_moniker --chain-id exchain-66 --home ${EXCHAIND_PATH}

# 3. download genesis.json
wget https://raw.githubusercontent.com/okx/mainnet/main/genesis.json -O ${EXCHAIND_PATH}/config/genesis.json

# 4. start exchaind
# rpc节点启动(--chain-id默认为exchain-66，--db_backend默认为rocksdb)
exchaind start --home ${EXCHAIND_PATH}  
# 超级节点(如果是validator) 启动
exchaind start --node-mode=val --home ${EXCHAIND_PATH}
# 归档节点
exchaind start --pruning=nothing --iavl-enable-async-commit=false --fast-query=false --home ${EXCHAIND_PATH}

注意

exchaind会将每个高度的状态增量放到内存，经过N个区块高度后，统一进行持久化。
如果exchaind节点强制退出，再次启动exchaind节点时，会导致状态数据丢失，需要进行数据修复，因此：

强烈建议您不要强制退出exchaind节点。
如果使用的Docker，强烈建议您在容器完全停止后，再进行其他操作。

操作步骤

用命令行停止exchaind

#两个命令均可使用，二选一即可
kill -2 ${pid}
kill -15 ${pid}

停止docker中的exchaind

docker stop -t 1200  或者 docker-compose down -t 1200

检查是否正常退出

在执行完退出命令后，如果日志中出现如下记录表明本次优雅退出，不会出现数据损坏

I[2022-11-19|02:58:37.689][19369] exiting.... module=main

3. 使用docker+快照启动

# 1. Initialize exchain node configurations
export EXCHAIND_PATH=~/.exchaind (或者其他目录)
exchaind init your_custom_moniker --chain-id exchain-66 --home ${EXCHAIND_PATH}

# 2. download snapshot
rm -rf ${EXCHAIND_PATH}/data
cd ${EXCHAIND_PATH}
# 该镜像使用rocksdb数据，所以要下载主网对应的rocksdb快照。
wget https://okg-pub-hk.oss-cn-hongkong.aliyuncs.com/cdn/okc/snapshot/mainnet-$version-$date-$height-rocksdb.tar.gz
tar -zxvf mainnet-$version-$date-$height-rocksdb.tar.gz

# 3. download the docker image
docker pull okexchain/fullnode-mainnet:latest  # 该镜像使用rocksdb快照数据。

# 4. run docker based the snapshot downloaded in the previous step Start based on snapshot.
docker run -d --name exchain-mainnet-fullnode -v ~/.exchaind/data:/root/.exchaind/data/ -p 8545:8545 -p 26656:26656 okexchain/fullnode-mainnet:latest

xcliu

国内用户好像无法拉取快照

bignnonster

xcliu
看看这里试试 https://forum.okt.club/d/154

danny-dudu

使用你的办法“优雅”的关闭了节点以后，再次重启Rocksdb错误，这是什么原因？？？

I[2023-06-25|18:16:44.632][1382] . module=iavl Tree=acc committedheightqueue="[20379700 20379800 20379900 20380000 20380100 20380200 20380300 20380400 20380500 20380600 20380700 20380800 20380900 20381000 20381100 20381200 20381300 20381400 20381500 20381600 20381700 20381800 20381900 20382000 20382100 20382200 20382300 20382400 20382500 20382600 20382700 20382748]"
I[2023-06-25|18:16:44.669][1382] . module=iavl Tree=evm committedheightqueue="[20378500 20378600 20378700 20378800 20378900 20379000 20379100 20379200 20379300 20379400 20379500 20379600 20379700 20379800 20379900 20380000 20380100 20380200 20380300 20380400 20380500 20380600 20380700 20380800 20380900 20381000 20381100 20381200 20381300 20381400 20381500 20381600 20381700 20381800 20381900 20382000 20382100 20382200 20382300 20382400 20382500 20382600 20382700 20382748]"
I[2023-06-25|18:17:43.663][1382] startInProcess. module=main ConsensusStateChainID=exchain-66 GenesisDocChainID=exchain-66
panic: Error initializing DB: resource temporarily unavailable

goroutine 279 [running]:
github.com/okex/exchain/libs/tm-db.NewDB({0x2362c9f, 0xa}, {0x2360944, 0x9}, {0xc000a654d0, 0x28})
/data/src/exchain/libs/tm-db/db.go:84 +0x1fd
github.com/okex/exchain/libs/tendermint/lite/proxy.NewVerifier({0x236237b, 0xa}, {0xc000a654d0, 0x28}, {0x7ff2f8307cc8?, 0xc0010a9380}, {0x28ebea0, 0x3b5fff0}, 0xa)
/data/src/exchain/libs/tendermint/lite/proxy/verifier.go:31 +0x3e5
github.com/okex/exchain/libs/cosmos-sdk/client/context.CreateVerifier({{0x0, 0x0, 0x0}, {0x29147c8, 0xc0010a9380}, {0x236237b, 0xa}, {0x0, 0x0}, {0x28d5ae0, ...}, ...}, ...)
/data/src/exchain/libs/cosmos-sdk/client/context/verifier.go:52 +0x1a5
github.com/okex/exchain/libs/cosmos-sdk/client/context.NewCLIContextWithInputAndFrom({_, }, {, _})
/data/src/exchain/libs/cosmos-sdk/client/context/context.go:114 +0x785
github.com/okex/exchain/libs/cosmos-sdk/client/context.NewCLIContextWithFrom(...)
/data/src/exchain/libs/cosmos-sdk/client/context/context.go:130
github.com/okex/exchain/libs/cosmos-sdk/client/context.NewCLIContext()
/data/src/exchain/libs/cosmos-sdk/client/context/context.go:135 +0x87
github.com/okex/exchain/libs/cosmos-sdk/client/lcd.NewRestServer(0xc000af8a70, {0x7ff2f8298540?, 0xc000a10588}, 0xc000b29760)
/data/src/exchain/libs/cosmos-sdk/client/lcd/root.go:64 +0xa5
github.com/okex/exchain/libs/cosmos-sdk/client/lcd.StartRestServer(0x0?, {0x7ff2f8298540?, 0xc000a10588?}, 0x261a5b0, 0x0?, {0x2376191, 0x13})
/data/src/exchain/libs/cosmos-sdk/client/lcd/root.go:181 +0x48
created by github.com/okex/exchain/libs/cosmos-sdk/server.startInProcess
/data/src/exchain/libs/cosmos-sdk/server/start.go:239 +0x1067

danny-dudu

使用你的办法“优雅”的关闭了节点以后，再次重启Rocksdb错误，这是什么原因？？？

Kane

danny-dudu 看起来启动的时候，db是被占用的状态

breezytm

Anyone can take a look at this please and assist if possible. Thanks
https://github.com/okx/exchain/issues/3191

Kane

breezytm I have replied the solution in this issue.