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Limit workers in ProcessPoolExecutor #1747

Merged
merged 1 commit into from
Apr 22, 2019
Merged

Limit workers in ProcessPoolExecutor #1747

merged 1 commit into from
Apr 22, 2019

Commits on Apr 22, 2019

  1. Limit workers in ProcessPoolExecutor 

    As a mitigation for pypa#1730, this commit limits the number of workers in
the ProcessPoolExecutor to 1 (default is the number of CPUs). On PyPy,
having a higher number of available workers dramatically increases the
number of concurrent processes, leading to some resource exhaustion
issues.

This does not address the root issue, but should improve the situation
until the root issue is addressed.
    @pganssle
    pganssle committed Apr 22, 2019
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