27 lines
961 B
ReStructuredText
27 lines
961 B
ReStructuredText
Environment Variables
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======================
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Eventlet's behavior can be controlled by a few environment variables.
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These are only for the advanced user.
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EVENTLET_HUB
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Used to force Eventlet to use the specified hub instead of the
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optimal one. See :ref:`understanding_hubs` for the list of
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acceptable hubs and what they mean (note that picking a hub not on
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the list will silently fail). Equivalent to calling
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:meth:`eventlet.hubs.use_hub` at the beginning of the program.
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EVENTLET_THREADPOOL_SIZE
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The size of the threadpool in :mod:`~eventlet.tpool`. This is an
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environment variable because tpool constructs its pool on first
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use, so any control of the pool size needs to happen before then.
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EVENTLET_TPOOL_DNS
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If set to 'yes', uses :func:`eventlet.tpool.execute` to call
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:func:`~socket.gethostbyname` and :func:`~socket.getaddrinfo`,
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making them appear non-blocking. This environment variable is
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ignored on OS X.
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