Centos7 builds bsc full chain node

Centos7 builds bsc full chain node

server configuration

CPU:8 Cores - 16 Threads
RAM:131072 MB
Storage:2x 2000GB NVMe
Bandwidth:8400.65 GB of 10000 GB
OS:
CentOS 7 x64
服务器位置: 东京

Because you need to download a 1.4T node snapshot and decompress it, it is best to have a 4T disk

The server is composed of two 2T disks, so first mount the disk

mount new disk

1. View the current mount device of the server

fdisk -l

#(当前服务器已经挂载好了，新磁盘为nvme1n1, 应输入fdisk -l查看自己服务器未挂载的磁盘)

磁盘 /dev/nvme1n1：2000.4 GB, 2000398934016 字节，3907029168 个扇区
Units = 扇区 of 1 * 512 = 512 bytes
扇区大小(逻辑/物理)：512 字节 / 512 字节
I/O 大小(最小/最佳)：512 字节 / 512 字节


磁盘 /dev/nvme0n1：2000.4 GB, 2000398934016 字节，3907029168 个扇区
Units = 扇区 of 1 * 512 = 512 bytes
扇区大小(逻辑/物理)：512 字节 / 512 字节
I/O 大小(最小/最佳)：512 字节 / 512 字节
磁盘标签类型：dos
磁盘标识符：0x000e0a65

        设备 Boot      Start         End      Blocks   Id  System
/dev/nvme0n1p1   *        2048  3907029134  1953513543+  fd  Linux raid autodetect

磁盘 /dev/md0：2000.4 GB, 2000394722816 字节，3907020943 个扇区
Units = 扇区 of 1 * 512 = 512 bytes
扇区大小(逻辑/物理)：512 字节 / 512 字节
I/O 大小(最小/最佳)：512 字节 / 512 字节

2. Delete the original partition

fdisk /dev/nvme1n1

#nvme1n1位需挂载的设备名

欢迎使用 fdisk (util-linux 2.23.2)。

更改将停留在内存中，直到您决定将更改写入磁盘。
使用写入命令前请三思。


命令(输入 m 获取帮助)：d
已选择分区 1
分区 1 已删除

命令(输入 m 获取帮助)：p

磁盘 /dev/nvme1n1：2000.4 GB, 2000398934016 字节，3907029168 个扇区
Units = 扇区 of 1 * 512 = 512 bytes
扇区大小(逻辑/物理)：512 字节 / 512 字节
I/O 大小(最小/最佳)：512 字节 / 512 字节
磁盘标签类型：dos
磁盘标识符：0x04fc5a3c

   设备 Boot      Start         End      Blocks   Id  System

命令(输入 m 获取帮助)：w
The partition table has been altered!

Calling ioctl() to re-read partition table.
正在同步磁盘。

3. Create a new partition

fdisk /dev/nvme1n1

欢迎使用 fdisk (util-linux 2.23.2)。

更改将停留在内存中，直到您决定将更改写入磁盘。
使用写入命令前请三思。


命令(输入 m 获取帮助)：n
Partition type:
   p   primary (0 primary, 0 extended, 4 free)
   e   extended
Select (default p): p
分区号 (1-4，默认 1)：1
起始 扇区 (2048-3907029167，默认为 2048)：
将使用默认值 2048
Last 扇区, +扇区 or +size{K,M,G} (2048-3907029167，默认为 3907029167)：
将使用默认值 3907029167
分区 1 已设置为 Linux 类型，大小设为 1.8 TiB

命令(输入 m 获取帮助)：w
The partition table has been altered!

Calling ioctl() to re-read partition table.
正在同步磁盘。

4. Format the partition

mkfs.ext3 /dev/nvme1n1

5. Mount and use

# 新建一个挂载点。
mkdir /data 

# 挂载。
mount /dev/sdb1 /data

#查看是否挂载成功
[root@guest ~]# df -h
文件系统        容量  已用  可用 已用% 挂载点
devtmpfs         63G     0   63G    0% /dev
tmpfs            63G     0   63G    0% /dev/shm
tmpfs            63G   34M   63G    1% /run
tmpfs            63G     0   63G    0% /sys/fs/cgroup
/dev/md0        1.8T  1.5T  208G   89% /
tmpfs            13G     0   13G    0% /run/user/0
/dev/nvme1n1    1.8T  1.4T  322G   82% /data

在最后一行
磁盘因为已经使用过了所以有占用

6. Automatically mount when booting

vim /etc/fstab
在底部添加
/dev/nvme1n1 /data ext3 defaults 1 2

So far the disk has been mounted successfully

upgrade of centos7 git

Because the default git version of centos7 is 1.8, there will be version problems when using git in the future, so you must upgrade git first

install dependencies

yum install curl-devel expat-devel gettext-devel openssl-devel zlib-devel asciidoc
yum install gcc perl-ExtUtils-MakeMaker

Uninstall the old version of git

yum remove git

open folder

cd /usr/local/src/

Download the git compressed package

The compressed package version is 2.32

wget https://mirrors.edge.kernel.org/pub/software/scm/git/git-2.32.0.tar.xz

unzip

tar -xvf git-2.32.0.tar.xz

Open the decompressed git file

cd git-2.32.0

compile

make prefix=/usr/local/git all

install git

make prefix=/usr/local/git install

Configure environment variables

echo "export PATH=$PATH:/usr/local/git/bin" >> /etc/profile && source /etc/profile

#验证git版本
git --version 

Install other required plugins

yum -y upgrade

yum install wget -y

yum install golang -y

#验证go的版本
go version

#如正确显示版本号则安装正确
#go version go1.18.1 linux/amd64

yum -y install screen

At this point, the preparations have been done, and the bsc chain will be formally built below

Construction of BSC chain

cd /        #进入根目录
mkdir -p jiedian/kuaizhao        #创建jiedian及kuaizhao文件夹
cd /jiedian        #进入jiedian文件夹
git clone https://github.com/binance-chain/bsc
cd bsc/
make geth

configuration path

vim /etc/profile
#把下列一行写到最后边然后 :wq 保存退出
export PATH=$PATH:/jiedian/bsc/build/bin
#然后使命令生效
source /etc/profile

#使用geth version确认安装正确

Configure Genesis Block

wget https://github.com/binance-chain/bsc/releases/download/v1.1.9/mainnet.zip
unzip mainnet.zip
geth --datadir node init genesis.json

Download BSC Snapshot

Create a screen window for downloading snapshots

• After entering the screen window, if you want to exit, press and hold ctrl+a+d successively
• After exiting the window, enter screen -ls in the main window to view other windows opened
• screen -x <window name> connect into the window

Note that the link address in the wget -O geth.tar.lz4 command below must be within double quotes

Notice! ! ! ! ! : The download address given on the official website is an https connection. If the network environment is poor, it will easily lead to ssl failure to verify the problem, which will interrupt the download and waste server traffic. If this problem occurs, you can copy and download the connection and change the https at the beginning to http.

screen -S xiazai
cd /data        #下载至上文所挂载的新磁盘
wget -O geth.tar.lz4 "最新下载地址" 

Snapshot download link: https://github.com/binance-chain/bsc-snapshots

The compressed package is about 1.4T

After the download is complete, unzip the file to /jiedian/kuaizhao

And move the chaindata and triecache in this file to the /jiedian/bsc/node/geth folder

The node folder is automatically generated after configuring mainnet above

tar -I lz4 -xvf geth.tar.lz4

mv /jiedian/kuaizhao/server/data-seed/geth/chaindata /jiedian/bsc/node/geth
mv /jiedian/kuaizhao/server/data-seed/geth/triecache /jiedian/bsc/node/geth

ctrl+ad        #退出xiazai窗口

Start BSC full node

screen -S bsc    #创建bsc节点启动窗口
1
geth --config ./config.toml --datadir ./node --diffsync --cache 86016 --rpc.allow-unprotected-txs --txlookuplimit 0 --rpc.txfeecap 0 --rpc.gascap 0

Parameter Description:

–config: specify the BSC node configuration file

–datadir: specify the data directory of the BSC node database and key repository (the default is fine)

–cache: Set the maximum memory allocated to the internal cache, default: 1024 (the larger the setting, the more data will be synchronized each time, and the more memory will be consumed)

--rpc.allow-unprotected-txs: Allow submitting unprotected (non-EIP155 signed) transactions via RPC

–txlookuplimit 0 : disable deleting transaction index

--diffsync: enable the diff sync protocol to help nodes sync faster

–rpc.txfeecap: unlimited gas fee

–rpc.gascap: No transaction fee cap

ctrl + a + a #返回主窗口

node monitoring

geth attach http://127.0.0.1:8545
#这里的端口如果修改配置文件了，就填写配置文件的端口即可

> eth.syncing    #查看当前块情况
> net.peerCount    #查看当前连接节点数量，结果为false为同步完成
> eth.blockNumber #当前同步到块高度

nginx configuration file

Let the node provide ws connection to the external server

server{
 listen 80; 
 server_name # 你的网址名称
 # 重点，转发websocket需要的设置
location / {
   proxy_pass http://127.0.0.1:8545/;
}


 # 所有请求都转发
 location /ws {
  proxy_pass http://127.0.0.1:8546/;
 proxy_set_header X-Real_IP $remote_addr;
 proxy_set_header Host $host;
 proxy_set_header X_Forward_For $proxy_add_x_forwarded_for;
 proxy_http_version 1.1;
 proxy_set_header Upgrade $http_upgrade;
 proxy_set_header Connection 'upgrade';
 }
}

If you have any questions about building a node, you can join our community group to ask questions

There are also some experience sharing about solidity learning in the group

And some free gadgets to share

Reference article: https://learnblockchain.cn/article/3888

Get more blockchain learning materials through Github!

https://github.com/Manuel-yang/BlockChainSelfLearning