My speculation is, because python wsgi_mod with multiple processes does not support "singleton" object. So reloading configuration in one process does not help to update the configuration. Needs smarter reloading mechanism.

we will add "expect fork" in the apache upstart script. Then we could restart apache by using "sudo restart moblab-apache-init".

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/overlays/board-overlays/+/d1849b20ae6542b2938491596bc9fba46b2f99b3

commit d1849b20ae6542b2938491596bc9fba46b2f99b3
Author: Michael Tang <ntang@google.com>
Date: Tue May 24 06:01:49 2016

Fix the apache upstart forking.

The apache2 command forks child process and exits. The upstart script
needs to track the child process intead.

BUG= chromium:597991 
TEST=manually test.

Change-Id: I655917762e85d3602dde5aed736f1fef8393c857
Reviewed-on: https://chromium-review.googlesource.com/347040
Commit-Ready: Michael Tang <ntang@chromium.org>
Tested-by: Michael Tang <ntang@chromium.org>
Reviewed-by: Simran Basi <sbasi@chromium.org>
Reviewed-by: Michael Tang <ntang@chromium.org>

[modify] https://crrev.com/d1849b20ae6542b2938491596bc9fba46b2f99b3/project-moblab/chromeos-base/chromeos-bsp-moblab/files/init/moblab-apache-init.conf
[rename] https://crrev.com/d1849b20ae6542b2938491596bc9fba46b2f99b3/project-moblab/chromeos-base/chromeos-bsp-moblab/chromeos-bsp-moblab-0.0.5-r34.ebuild