Created attachment 736323 [details]
proposed changes

Description of problem:
ocf:heartbeat:apache script should try first send WINCH signal before sending
TERM signal. According to apache manual page
https://httpd.apache.org/docs/2.2/stopping.html it is the way of graceful
killing of children and that is what I think should be done.

Version-Release number of selected component (if applicable):
resource-agents-3.9.5-4.el7.x86_64

How reproducible: n/a

Steps to Reproduce: n/a
  
Actual results: Immediate stop
https://httpd.apache.org/docs/2.2/stopping.html#term
Apache is being killed with TERM signal which "...causes it to immediately
attempt to kill off all of its children.  It may take it several seconds to
complete killing off its children. Then the parent itself exits. Any requests
in progress are terminated, and no further requests are served." [2]

Expected results: Graceful stop
https://httpd.apache.org/docs/2.2/stopping.html#gracefulstop
"...causes the parent process to advise the children to exit after their
current request (or to exit immediately if they're not serving anything). The
parent will then remove its PidFile and cease listening on all ports. The
parent will continue to run, and monitor children which are handling requests.
Once all children have finalised and exited or the timeout specified by the
GracefulShutdownTimeout has been reached, the parent will also exit. If the
timeout is reached, any remaining children will be sent the TERM signal to
force them to exit."