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# Read the Docs configuration file for Sphinx projects | ||
# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details | ||
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# Required | ||
version: 2 | ||
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# Set the OS, Python version and other tools you might need | ||
build: | ||
os: ubuntu-22.04 | ||
tools: | ||
python: "3.7" | ||
# nodejs: "20" | ||
# rust: "1.70" | ||
# golang: "1.20" | ||
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sphinx: | ||
configuration: 2.x/conf.py | ||
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# Optionally build your docs in additional formats such as PDF and ePub | ||
formats: | ||
- epub | ||
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# Optional but recommended, declare the Python requirements required | ||
# to build your documentation | ||
# See https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html | ||
python: | ||
install: | ||
- requirements: ./requirements.txt |
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2.x/docs/articles/7_community/fisco适配达梦数据库/fisco达梦数据库.md
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## fisco-bcos适配达梦数据库 | ||
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作者:dyy8888(董耀宇)|北京邮电大学 | ||
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### 为什么需要达梦数据库? | ||
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达梦数据库作为一款国产数据库软件,拥有自主产权,满足国内要求自主产权、安全和国产化等要求。 | ||
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目前`fisco-bcos`支持的数据库有:`mysql`、`rocksdb`,并不支持国产数据库达梦数据库,本次改造在`fisco-bcos2.9.1`版本的源代码基础上,对其中`mysql`的源码`zdbStorage`部分进行修改以适配达梦数据库。目前改造版本将暂不支持`mysql`数据库。 | ||
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我们成功在搭载鲲鹏`CPU`,麒麟`os`的系统上运行了达梦区块链节点,实现了`CPU`、操作系统和数据库的国产化适配。 | ||
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### 达梦FISCO改造思路 | ||
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首先明确一点,我们的改造基于源码是`FISCO-BCOS 2.9.1`版本。 | ||
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达梦数据库与`mysql`数据库都属于关系型数据库,就此次改造而言,两者主要区别包含两点: | ||
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1. `SQL`语句和数据类型不同 | ||
2. 数据库结构不同:`mysql`数据库有库和表的概念,可以建立多个数据库,每个数据库中包含多个表,数据库之间彼此独立。所以在使用`mysql`存储引擎时,需要为每一个节点配置一个数据库;然而达梦数据库中并不是这样的架构,其架构更类似于`oracle`数据库,不存在可以配置多个数据库的情况。所以对于一个达梦节点而言,就需要配置一个达梦数据的实例。 | ||
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由于达梦和`mysql`具有一定的相似性,所以我们的改造也是基于`mysql`源码部分。那么首先我们需要了解一下`fisco`是如何实现`mysql`存储的。 | ||
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#### fisco如何使用mysql数据库 | ||
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有关于`mysql`部分的源码位于源码文件的`libStorage`文件夹中的`ZdbStorage`文件中。通过阅读源码我们发现在`fisco`与`mysql`的连接上使用了一款叫做`libzdb`的插件。这款插件提供了一系列数据库操作的接口,比如连接池、URL连接、`SQL`语句执行封装等接口,并且是线程安全的。目前这款插件支持的数据库包括支持`Mysql` `Oracle` `SQLite` `PostgreSQL`。 | ||
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所以这给适配达梦提供了思路,如果想使用这些接口的话,那么就需要让达梦和`libzdb`进行适配,然后就可以直接使用这些接口了。 | ||
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#### fisco如何使用达梦数据库 | ||
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由于`libzdb`官方给出的说明中并不支持达梦数据库,所以我们有必要让两者进行适配,才可以进行与`fisco`的结合。 | ||
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在达梦数据库给出的驱动方面,其提供的`OCI`驱动包是按照`oracle`进行书写的,所以与`oracle`天然适配,这无疑给我们的改造提供了极大的便利。所以此次改造我们使用了`libzdb oracle`部分的代码,进行修改后使其适配达梦数据库。 | ||
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在完成`libzdb`适配后,我们修改了`fisco zdb`部分的代码,主要是针对`sql`语句的改造,成功实现`fisco`与达梦数据库的结合。 | ||
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<img src="fisco达梦数据库.assets/image-20231019105956621.png" alt="image-20231019105956621" style="zoom: 50%;" /> | ||
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#### 对于源码编译的改造 | ||
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说完了适配的整体思路,继续说一下关于编译环节的改造。 | ||
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首先说一下`fisco`在源码编译部分的处理。`fisco`是用`cmake`进行组织编译的,在源码的`cmake`文件夹中存放着需要拉取依赖的地址和操作方式,文件目录如下图所示 | ||
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<img src="fisco达梦数据库.assets/image-20231019110653446.png" alt="image-20231019110653446" style="zoom:33%;" /> | ||
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其中我们可以发现一个叫`ProjectLibzdb.cmake`的文件,我们进去看一下 | ||
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![zdb](fisco达梦数据库.assets/zdb.jpg) | ||
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这是修改后文件,其主要作用就是根据URL地址拉取第三方依赖包。由于我们对`libzdb`进行了自己的适配改造,所以我们将改造后的`libzdb`代码上传到了自己的仓库中,以便进行下载。 | ||
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所以我们对`cmake`文件也进行了修改 | ||
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### fisco-dm源码编译 | ||
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本章节将针对如何从源码编译出适配达梦的`fisco-bcos`程序。当然,我们在文末也提供了直接编译好的`fisco-bcos`程序,您可以跳过这一章节,直接使用编译好的程序也可以。 | ||
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#### 相关依赖 | ||
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`fisco-bcos`:2.9.1版本 | ||
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`达梦数据库`:DM8 | ||
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`达梦驱动包`:dmoci | ||
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操作系统:centos7+,ubuntu20.04,麒麟osV10;支持ARM,不支持windows系统 | ||
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#### libzdb适配教程 | ||
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由于开发周期较短,所以`libzdb`适配达梦数据库的一键配置的脚本并没有完成,所以需要进行人工手动适配,过程略有繁琐。 | ||
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1. 首先请准备一台装有`mysql`的电脑/服务器,将l`ibzdb-dm`代码拉取到本地,代码仓库地址:https://github.com/dyy8888/LibzdbForDM.git 此仓库提供的就是改造好的`libzdb-dm`代码 | ||
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2. 在`libzdbForDM`文件夹中,执行自动检测脚本,这一步会自动检测所拥有的数据库 | ||
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![image-20231019112540817](fisco达梦数据库.assets/image-20231019112540817.png) | ||
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```shell | ||
./configure | ||
``` | ||
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<img src="fisco达梦数据库.assets/image-20231016104130933.png" alt="image-20231016104130933" style="zoom: 25%;" /> | ||
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可以发现检测到了`Mysql`的环境,同时会生成`MakeFile`文件 | ||
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![image-20231019112616789](fisco达梦数据库.assets/image-20231019112616789.png) | ||
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3. 编辑`MakeFile`文件,修改其中的配置信息。 | ||
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修改前: | ||
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<img src="fisco达梦数据库.assets/image-20231016104348280.png" alt="image-20231016104348280" style="zoom:25%;" /> | ||
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修改后: | ||
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<img src="fisco达梦数据库.assets/image-20231016104429480.png" alt="image-20231016104429480" style="zoom:25%;" /> | ||
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修改前: | ||
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<img src="fisco达梦数据库.assets/image-20231016104509554.png" alt="image-20231016104509554" style="zoom:25%;" /> | ||
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修改后: | ||
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<img src="fisco达梦数据库.assets/image-20231016104547562.png" alt="image-20231016104547562" style="zoom:25%;" /> | ||
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因为自动检测到的是`mysql`环境,所以需要注释掉`mysql`相关的信息,打开`oracle`相关的 | ||
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修改前: | ||
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<img src="fisco达梦数据库.assets/image-20231016104646869.png" alt="image-20231016104646869" style="zoom:25%;" /> | ||
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修改后: | ||
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<img src="fisco达梦数据库.assets/image-20231016104842394.png" alt="image-20231016104842394" style="zoom:25%;" /> | ||
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这两步的作用是将达梦给的`dmoci`的驱动和`DCI.h`的头文件导入`libzdb`项目中。驱动和头文件会在文末的百度网盘链接中给出。下图给出`dmoci`驱动包的文件结构。可以发现其中包含驱动`dmoci.a dmoci.so`和依赖的头文件`DCI.h DCI1.h oci.h` | ||
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<img src="fisco达梦数据库.assets/image-20231019113026956.png" alt="image-20231019113026956" style="zoom:33%;" /> | ||
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其中:`/root/dmoci/include`其中包含`DCI.h`头文件,此路径需根据实际情况进行修改 | ||
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`dmoci`为驱动,需要将达梦提供的`oci`驱动包中的`libdmoci`文件复制到系统目录下,这个目录可以参考359行前面给出路径。比如此图片中,需要将`dmoci`复制到`/usr/lib64`中 | ||
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保存退出`MakeFile`文件 | ||
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4. 进入src文件夹,修改其中的xconfig.h文件 | ||
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![image-20231019113312346](fisco达梦数据库.assets/image-20231019113312346.png) | ||
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![image-20231019113347876](fisco达梦数据库.assets/image-20231019113347876.png) | ||
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修改前: | ||
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![image-20231016105409664](fisco达梦数据库.assets/image-20231016105409664.png) | ||
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修改后: | ||
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![image-20231016105437956](fisco达梦数据库.assets/image-20231016105437956.png) | ||
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这一步的目的是关闭`mysql`,打开`oracle` | ||
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5. 返回与Makefile同级目录中,如下图所示,执行编译安装步骤 | ||
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![image-20231019113444696](fisco达梦数据库.assets/image-20231019113444696.png) | ||
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```shell | ||
make -j4 | ||
sudo make install | ||
``` | ||
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6. 安装成功后说明适配成功,执行清除指令 | ||
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```shell | ||
sudo make clean | ||
``` | ||
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7. 将上述适配好的代码上传到个人的仓库中,这一步的目的是`fisco`在源码编译的时候需要根据依赖的地址去下载,所以请将此代码上传一个可以进行拉取下载的仓库中。同时可能会有疑问,为什么不直接拉取作者改造好的代码呢?这是因为我自己改造的代码相关配置路径是在执行`./configure`后根据我自己服务器的相关信息产生的。所以对于用户来说,肯定和我的服务器路径不相同,所以需要您手动拉取代码后进行配置。 | ||
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#### fisco适配 | ||
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##### **源码编译** | ||
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修改后的fisco代码仓库位于:https://github.com/dyy8888/FISCO-BCOS-2.9.1.git | ||
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请先拉取代码到本地。 | ||
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```shell | ||
#进入cmake目录下,修改ProjectLibzdb.cmake | ||
将下载地址设置为上一步中适配好的libzdb代码地址,也就是您自己上传的github仓库,其他仓库也可以,只要确保可以通过URL下载下来就行 | ||
``` | ||
|
||
<img src="fisco达梦数据库.assets/image-20231016111144312.png" alt="image-20231016111144312" style="zoom:25%;" /> | ||
|
||
```shell | ||
#返回上一级目录,新建文件夹build | ||
mkdir build | ||
#执行cmake指令 | ||
cmake .. | ||
#如果是arm64架构,执行。x86不需要 | ||
cmake -DARCH_NATIVE=on .. | ||
#进行编译 | ||
make -j4 | ||
``` | ||
|
||
在编译过程中,会自动将依赖拉取到deps目录下 | ||
|
||
![image-20231016111704475](fisco达梦数据库.assets/image-20231016111704475.png) | ||
|
||
```shell | ||
#需要手动复制rt和oci驱动至deps/libs文件夹中,如下图所示,其余的依赖会在编译中自动放入。这两个依赖,#libdmoci.a在网盘提供的包里有。librt.a请在您的系统目录下寻找。也可以使用命令查找 | ||
whereis librt.a | ||
``` | ||
|
||
![image-20231016111815321](fisco达梦数据库.assets/image-20231016111815321.png) | ||
|
||
最后,可在build/bin目录下得到`fisco-bcos`可执行程序 | ||
|
||
### 具体使用教程 | ||
|
||
文末的百度网盘包中提供了编译好的`fisco-bcos`可执行程序,如果您跳过了源码编译环节,您可以直接看本章节进行部署使用 | ||
|
||
由于测试环境仅包含一台达梦实例,所以本教程将搭建三个`mysql`节点和一个达梦节点 | ||
|
||
首先根据官网文档教程搭建本地四节点的`fisco-bcos`链 | ||
|
||
```shell | ||
## 创建操作目录 | ||
cd ~ && mkdir -p fisco && cd fisco | ||
|
||
## 下载脚本 | ||
curl -#LO https://github.com/FISCO-BCOS/FISCO-BCOS/releases/download/v2.9.1/build_chain.sh && chmod u+x build_chain.sh | ||
## 执行建链脚本 | ||
bash build_chain.sh -l 127.0.0.1:4 -p 30300,20200,8545 | ||
``` | ||
|
||
可以得到以下的目录结构,其中包含着四个节点 | ||
|
||
![image-20231019115803764](fisco达梦数据库.assets/image-20231019115803764.png) | ||
|
||
```shell | ||
## 返回主目录,新建文件夹fisco-DM | ||
cd ~ && mkdir -p fisco-DM | ||
## 复制刚才的fisco文件夹到fisco-DM中 | ||
cp -r fisco fisco-DM/ | ||
``` | ||
|
||
![image-20231019120132592](fisco达梦数据库.assets/image-20231019120132592.png) | ||
|
||
```shell | ||
## 我们将node0设置为达梦节点,其他节点为mysql节点。 | ||
## 所以删除fisco文件夹中的node0文件夹,删除fisco-DM中的node1,node2,node3文件夹 | ||
## 处理完毕后的目录结构为 | ||
``` | ||
|
||
![image-20231019120519771](fisco达梦数据库.assets/image-20231019120519771.png) | ||
|
||
![image-20231019120608331](fisco达梦数据库.assets/image-20231019120608331.png) | ||
|
||
将`fisco-DM`文件夹中的`fisco-bcos`程序,换成达梦版本的程序(源码编译而来,或者直接使用链接包中的程序) | ||
|
||
修改达梦节点(node0)下,conf/group.1.ini | ||
|
||
<img src="fisco达梦数据库.assets/image-20231016112613639.png" alt="image-20231016112613639" /> | ||
|
||
<img src="fisco达梦数据库.assets/QQ图片20231016112850.png" alt="QQ图片20231016112850" style="zoom:25%;" /> | ||
|
||
目前仅支持SYSDBA的写入,请确保您的用户具备`DBA`的权限 | ||
|
||
启动节点后,查询节点的运行日志,检查是否共识正常。同时可以登录达梦数据库的命令行,查询相关的表格信息。如下图所示: | ||
|
||
![image-20231019134453143](fisco达梦数据库.assets/image-20231019134453143.png) | ||
|
||
### 软件包链接 | ||
|
||
链接:https://pan.baidu.com/s/13VLvYNdrdloMZFMjzWQsrQ?pwd=dm10 | ||
提取码:dm10 | ||
|
||
fisco-dm的PR链接为:https://github.com/FISCO-BCOS/FISCO-BCOS/pull/3969 | ||
|
||
这里可以看到关于fisco-dm对于底层文件的改动情况 | ||
|
||
如有更多问题,可联系我们:[email protected] | ||
|
||
可以进行指导部署安装达梦区块链节点 |
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