process/Broker: do not reset poller_class. Fixes #967 #991
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With ansible 2.12.8 and up the brokers may crash on large playbooks and/or many hosts due to the use of
select.select()
which is limited to 1024 file descriptors.This PR removes resetting the
poller_class
tomitogen.core.Poller
so the best poller is used instead (that should be at leastselect.poll()
which is not limited to 1024 fds).