python - pyspider使用redis分布式

問題描述

在部署pyspider分布式時,嘗試連接redis集群配置項為： 'message_queue':'redis://127.0.0.1:6380/db'在啟動時：報如下錯誤[E 170221 09:40:39 tornado_fetcher:529] MOVED 12068 127.0.0.1:6380

Traceback (most recent call last): File '/usr/lib/python2.6/site-packages/pyspider/fetcher/tornado_fetcher.py', line 515, in queue_loop if self.outqueue.full(): File '/usr/lib/python2.6/site-packages/pyspider/message_queue/redis_queue.py', line 50, in full if self.maxsize and self.qsize() >= self.maxsize: File '/usr/lib/python2.6/site-packages/pyspider/message_queue/redis_queue.py', line 40, in qsize self.last_qsize = self.redis.llen(self.name) File '/usr/lib/python2.6/site-packages/redis/client.py', line 1219, in llen return self.execute_command(’LLEN’, name) File '/usr/lib/python2.6/site-packages/redis/client.py', line 573, in execute_command return self.parse_response(connection, command_name, **options) File '/usr/lib/python2.6/site-packages/redis/client.py', line 585, in parse_response response = connection.read_response() File '/usr/lib/python2.6/site-packages/redis/connection.py', line 582, in read_response raise responseResponseError: MOVED 12068 127.0.0.1:6380

經查找，得到：因為redis由單節點變為集群，而python的redis連接包暫時還不支持redis集群連接方式，需要更換連接包（redis-py-cluster）。

在安裝完redis-py-cluster之后，依舊報上面的錯誤。

問題解答

鏈接 redis 使用的庫是寫在代碼里面的，不是你安裝了就會切換的。就算你要改代碼，也要確認 API 是兼容的。