问题
does seeing the
urllib3.connectionpool WARNING - Connection pool is full, discarding connection
mean that I am effectively loosing data (because of lost connection)
OR
Does it mean that connection is dropped (because pool is full); however, the same connection will be re-tried later on when connection pool becomes available?
回答1:
Does it mean that connection is dropped (because pool is full); however, the same connection will be re-tried later on when connection pool becomes available?
^ This is the correct interpretation. If you can think of clearer phrasing for that message, please do open an issue with the suggestion!
Because a urllib3 PoolManager reuses connections, it will limit how many connections are allowed per host at any given time to avoid accumulating too many unused sockets. If you're relying on concurrency, it could be a good idea to increase the size to the number of threads you're using so that each thread effectively gets its own connection.
More details here: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#customizing-pool-behavior
来源：https://stackoverflow.com/questions/53765366/urllib3-connectionpool-connection-pool-is-full-discarding-connection