似乎您正在尝试将Redis与当前Debian环境无法识别的服务器连接。从Traceback，我看到您正在尝试使用主机名localhost进行连接，
r_server=redis.Redis(host='localhost',port=6379)
但是，您的系统无法理解“ localhost”，在主机文件中输入内容，即说127.0.0.1是localhost。在/ etc / hosts中添加以下代码
127.0.0.1 localhost
否则使用以下命令连接redis;
r_server=redis.Redis(host='localhost',port=6379)解决方法
在服务器中运行代码，env为debian时出现此错误，并且 Python2.7.3
Traceback (most recent call last): File 'fetcher.py',line 4,in <module> import mirad.fetcher_tasks as tasks File '/home/mirad/backend/mirad/fetcher_tasks.py',line 75,in <module> redis_keys = r.keys(’*’) File '/home/mirad/backend/venv/local/lib/python2.7/site-packages/redis/client.py',line 863,in keys return self.execute_command(’KEYS’,pattern) File '/home/mirad/backend/venv/local/lib/python2.7/site-packages/redis/client.py',line 534,in execute_command connection.send_command(*args) File '/home/mirad/backend/venv/local/lib/python2.7/site-packages/redis/connection.py',line 532,in send_command self.send_packed_command(self.pack_command(*args)) File '/home/mirad/backend/venv/local/lib/python2.7/site-packages/redis/connection.py',line 508,in send_packed_command self.connect() File '/home/mirad/backend/venv/local/lib/python2.7/site-packages/redis/connection.py',line 412,in connect raise ConnectionError(self._error_message(e))redis.exceptions.ConnectionError: Error -2 connecting to localhost:6379. Name or service not known.
当我运行时，redis-cli它可以正常工作，没有任何错误：
$ redis-cli 127.0.0.1:6379>
