libmysqlclient_18 not defined in file libmysqlclient.so.18

た入场券 2021-06-24 15:59 653阅读 0赞

今天在部署服务器的时候，又出现了`no python application found, check your startup logs for errors` 的问题，之前我分享过一篇，问题是环境变量的事，但是 今天这个问题是其他的问题。看下uwsgi.log的日志信息：

File "/usr/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/django/db/backends/mysql/base.py", line 27, in <module>
        raise ImproperlyConfigured("Error loading MySQLdb module: %s" % e)
    django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: /root/.cache/Python-Eggs/MySQL_python-1.2.5-py2.7-linux-
    x86_64.egg-tmp/_mysql.so: symbol mysql_real_connect, version libmysqlclient_18 not defined in file libmysqlclient.so.18 with link t
    ime reference
    
    *** no app loaded. going in full dynamic mode ***
    *** uWSGI is running in multiple interpreter mode ***
    spawned uWSGI master process (pid: 8745)
    spawned uWSGI worker 1 (pid: 8752, cores: 1)
    spawned uWSGI worker 2 (pid: 8753, cores: 1)
    spawned uWSGI worker 3 (pid: 8754, cores: 1)
    spawned uWSGI worker 4 (pid: 8755, cores: 1)
    *** Stats server enabled on /tmp/uwsgi.socket fd: 21 ***
    spawned uWSGI http 1 (pid: 8756)
    --- no python application found, check your startup logs for errors ---
    --- no python application found, check your startup logs for errors ---

centos7.4的系统里报这个问题，其实是一个文件没有找到的问题，解决的命令如下：

ln -s /usr/lib64/mysql/libmysqlclient.so.18 /usr/lib64/libmysqlclient.so.18

使用mysql数据库的话，要安装一下依赖的系统包 `yum install mysql-devel`  
如果不全的话，可以`yum install mysql*`