[issue24882] ThreadPoolExecutor doesn't reuse threads until #threads == max_workers

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

> If each worker thread ties up other resources in an application, such as handles to server connections, conserving threads could have a significant impact.

You may want to implement a pooling mechanism for those connections, independent of the thread pool.  It is also probably more flexible (you can implement whichever caching and lifetime logic benefits your application).

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue24882>
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