Comment 3 for bug 1449497

Reviewed: https://review.openstack.org/179036
Committed: https://git.openstack.org/cgit/openstack/murano/commit/?id=6a027bf11e756c57ab76f81d55fc9c26eb555bb2
Submitter: Jenkins
Branch: stable/kilo

commit 6a027bf11e756c57ab76f81d55fc9c26eb555bb2
Author: Stan Lagun <email address hidden>
Date: Thu Apr 30 15:21:28 2015 +0300

    pselect exited on first exception

    Due to eventlet bug in GreenPool implementation when first
    spawned thread threw exception imap method exited immediately
    without waiting for other spawned threads to accomplish.

    Issue in eventlet github:
    https://github.com/eventlet/eventlet/issues/232

    This commits wraps executed functions so that no exception can be
    raised on imap boundary and then unwraps result after execution

     Closes-Bug: #1449497

    Change-Id: I0e99de8e0711071c4a009e37a58ec22761e90e6c