企业版OpenGauss安装部署问题记录

环境信息

操作系统： centos7.6
数据库版本：openGauss-Server-7.0.0-RC1
数据库架构：1主1备
安装工具：openGauss-OM

python3 环境准备

安装脚本里需要python3 的环境，需要启用python的 --enable-shared 功能

• 安装操作系统依赖包 install -y openssl-devel libffi-devel python3-devel

• 编译python

   ./configure  --enable-shared 
   make 
   make install
   
  

初始化安装环境 ./gs_preinstall -U omm -G dbgrp -X

错误一：[GAUSS-51405] : You need to install software:expect

分析原因是配置互信时需要expect 包

[root@main script]# ./gs_preinstall -U omm -G dbgrp -X /root/soft/install.xml
[GAUSS-51405] : You need to install software:expect

 yum install expect
 

错误二：ImportError: this module was compiled for Python 3.6

[root@main script]# ./gs_preinstall -U omm -G dbgrp -X /root/soft/install.xml 
Traceback (most recent call last):
  File "/root/soft/script/gspylib/threads/SshTool.py", line 46, in <module>
    import paramiko
  File "/root/soft/script/domain_utils/sql_handler/../../../lib/paramiko/__init__.py", line 22, in <module>
    from paramiko.transport import SecurityOptions, Transport
  File "/root/soft/script/domain_utils/sql_handler/../../../lib/paramiko/transport.py", line 89, in <module>
    from paramiko.dsskey import DSSKey
  File "/root/soft/script/domain_utils/sql_handler/../../../lib/paramiko/dsskey.py", line 37, in <module>
    from paramiko.pkey import PKey
  File "/root/soft/script/domain_utils/sql_handler/../../../lib/paramiko/pkey.py", line 31, in <module>
    import bcrypt
  File "/root/soft/script/domain_utils/sql_handler/../../../lib/bcrypt/__init__.py", line 25, in <module>
    from . import _bcrypt  # type: ignore
ImportError: this module was compiled for Python 3.6

看来python只能用3.6 . 只能重新编译python 3.6

错误三：python版本冲突

[GAUSS-51400] : Failed to execute the command: python3 '/root/soft/script/local/PreInstallUtility.py' -t create_os_user -u omm -g dbgrp -l /var/log/omm/omm/om/gs_local.log. Result:{'192.168.149.100': 'Failure', '192.168.149.131': 'Success'}.
Error:
[FAILURE] 192.168.149.100:
Traceback (most recent call last):
  File "/root/soft/script/local/PreInstallUtility.py", line 39, in <module>
    from gspylib.common.ParameterParsecheck import Parameter
  File "/root/soft/script/local/../gspylib/common/ParameterParsecheck.py", line 27, in <module>
    from gspylib.common.Common import DefaultValue
  File "/root/soft/script/local/../gspylib/common/Common.py", line 20, in <module>
    import ctypes
  File "/usr/local/python3/lib/python3.9/ctypes/__init__.py", line 8, in <module>
    from _ctypes import Union, Structure, Array
ModuleNotFoundError: No module named '_ctypes'
[SUCCESS] 192.168.149.131:

安装最后报错，又用到了系统里的别的路径下的python3.9，出现了不兼容问题。看来环境里的别的版本的python需要清理干净

小结

其实只要提前把准备工作做好，OpenGaussDB的安装部署脚本用起来还是挺顺手的。这个脚本考虑到了很多安装过程中的细节，开发团队在背后做了不少扎实的工作。比如说，他们提前优化了系统底层的内核参数，还预先设置好了数据库的各种初始参数，甚至连操作系统里专门用于运行数据库的“omm”用户的环境变量都配置好了。