Comment 4 for bug 1563664

Reviewed: https://review.openstack.org/300914
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=8cdd8c4ec35e96d1f02d71fbf58a49f87961adc7
Submitter: Jenkins
Branch: master

commit 8cdd8c4ec35e96d1f02d71fbf58a49f87961adc7
Author: Steven Dake <email address hidden>
Date: Sun Apr 3 21:19:22 2016 -0400

    Increase max scheduling attempts to 10

    At high scale, such as 64 nodes with 13TB ram and 2600 cores, nova
    seems to struggle when scheduling 100+ VMs at the same time. The
    issue is unrelated to the database, as the error printed indicates
    the max_scheduling_attempts have been reached. Increase that value
    to something more fitting of a 100 node cluster.

    Change-Id: I8982d77c7c66db8f7c95b9fd73f58ceb66dbd723
    Closes-Bug: #1563664