Network verification failed for big cluster MOS 8.0 MU2

[Ivan Lozgachev]

Software: MOS 8.0 with MU2 installed (MU2 is not officially published yet)

Steps to reproduce:
1) Deploy Fuel master node with official MOS 8.0 ISO
2) Install MU2 using this way:

Create 3 new repo files on Master node like this
[root@fuel ~]# cat /etc/yum.repos.d/foo1.repo
[f001]
name=Foo1
baseurl=http://mirror.seed-us1.fuel-infra.org/mos-repos/centos/mos8.0-centos7-fuel/snapshots/os-latest/x86_64/
enabled=1
gpgcheck=0
[root@fuel ~]# cat /etc/yum.repos.d/foo2.repo
[f002]
name=Foo2
baseurl=http://mirror.seed-us1.fuel-infra.org/mos-repos/centos/mos8.0-centos7-fuel/snapshots/proposed-latest/x86_64/
enabled=1
gpgcheck=0
[root@fuel ~]# cat /etc/yum.repos.d/foo3.repo
[f003]
name=Foo3
baseurl=http://mirror.seed-us1.fuel-infra.org/mos-repos/centos/mos8.0-centos7-fuel/snapshots/security-latest/x86_64/
enabled=1
gpgcheck=0

Install MU2 update using this guide https://docs.mirantis.com/openstack/fuel/fuel-8.0/maintenance-updates.html#mu8-0-how-to-update

3) Create new env with next nodes:
3 controller + mongo
20 compute + ceph
179 compute

4) Start network verification

The error is occurred:

"Verification failed.
Method verify_networks. b2011106-2011-4642-9e63-e74e61370fcb: MCollective agents 'net_probe' '76,84,110,163' didn't respond within the allotted time.
Inspect Astute logs for the details"

Diagnostic snapshot: http://mos-scale-share.mirantis.com/fuel-snapshot-2016-07-12_06-42-42.tar.xz

[Alexey Stupnikov (astupnikov)]

Closing as won't fix as we don't fix bugs with medium priority in stable branches.