Comment 0 for bug 1379917

api: '1.0'
astute_sha: f5fbd89d1e0e1f22ef9ab2af26da5ffbfbf24b13
auth_required: true
build_id: 2014-10-09_01-14-07
build_number: '23'
feature_groups:
- mirantis
fuellib_sha: 46ad455514614ec2600314ac80191e0539ddfc04
fuelmain_sha: 8c9f42552fb37de643a500f8f99ba8e7fa4e15e3
nailgun_sha: eb8f2b358ea4bb7eb0b2a0075e7ad3d3a905db0d
ostf_sha: 64cb59c681658a7a55cc2c09d079072a41beb346
production: docker
release: 5.1.1

Steps to reproduce.
1. Create lab with 21 nodes with PXE boot on 10G interfacases.
2. Power off 20 nodes
2. Install Fuel in kvm on the one node.
3. Power on 20 nodes simultaneously
Fuel will discover only 15-17 nodes. 3-5 nodes can't boot from pxe and will boot from hdd.

Logs from jenkins job with time after job start

Case #1, power on 20 nodes simultaneously, only 16 nodes discovered.

00:04:34.359 2014-10-10 20:13:46,936 DEBUG - Discover 1 nodes
00:04:44.496 2014-10-10 20:13:57,072 DEBUG - Discover 2 nodes
00:04:59.724 2014-10-10 20:14:12,301 DEBUG - Discover 5 nodes
00:05:04.824 2014-10-10 20:14:17,401 DEBUG - Discover 7 nodes
00:05:15.035 2014-10-10 20:14:27,612 DEBUG - Discover 8 nodes
00:05:20.152 2014-10-10 20:14:32,729 DEBUG - Discover 10 nodes
00:05:30.401 2014-10-10 20:14:42,978 DEBUG - Discover 11 nodes
00:05:45.794 2014-10-10 20:14:58,371 DEBUG - Discover 14 nodes
00:05:50.925 2014-10-10 20:15:03,502 DEBUG - Discover 15 nodes
00:05:56.094 2014-10-10 20:15:08,671 DEBUG - Discover 16 nodes

Case #2, power on 20 nodes with 10 seconds interval, only 19 nodes discoverd.

00:04:32.024 2014-10-10 21:21:57,947 DEBUG - Discover 1 nodes
00:04:37.106 2014-10-10 21:22:03,029 DEBUG - Discover 2 nodes
00:05:02.467 2014-10-10 21:22:28,390 DEBUG - Discover 3 nodes
00:05:22.761 2014-10-10 21:22:48,684 DEBUG - Discover 4 nodes
00:05:38.011 2014-10-10 21:23:03,934 DEBUG - Discover 6 nodes
00:05:43.107 2014-10-10 21:23:09,030 DEBUG - Discover 7 nodes
00:05:48.203 2014-10-10 21:23:14,126 DEBUG - Discover 9 nodes
00:05:58.419 2014-10-10 21:23:24,342 DEBUG - Discover 10 nodes
00:06:29.079 2014-10-10 21:23:55,002 DEBUG - Discover 11 nodes
00:06:44.424 2014-10-10 21:24:10,347 DEBUG - Discover 12 nodes
00:06:59.814 2014-10-10 21:24:25,737 DEBUG - Discover 14 nodes
00:07:15.213 2014-10-10 21:24:41,135 DEBUG - Discover 15 nodes
00:07:35.757 2014-10-10 21:25:01,680 DEBUG - Discover 16 nodes
00:07:56.359 2014-10-10 21:25:22,282 DEBUG - Discover 17 nodes
00:08:06.646 2014-10-10 21:25:32,569 DEBUG - Discover 18 nodes
00:08:32.377 2014-10-10 21:25:58,300 DEBUG - Discover 19 nodes

Case #3, power on 20 nodes with 10 seconds interval, all nodes discovered

00:05:21.753 2014-10-10 22:05:23,777 DEBUG - Discover 2 nodes
00:05:26.839 2014-10-10 22:05:28,862 DEBUG - Discover 3 nodes
00:06:02.439 2014-10-10 22:06:04,462 DEBUG - Discover 4 nodes
00:06:12.747 2014-10-10 22:06:14,770 DEBUG - Discover 5 nodes
00:06:22.954 2014-10-10 22:06:24,978 DEBUG - Discover 6 nodes
00:07:03.673 2014-10-10 22:07:05,697 DEBUG - Discover 10 nodes
00:07:13.909 2014-10-10 22:07:15,933 DEBUG - Discover 11 nodes
00:07:54.799 2014-10-10 22:07:56,823 DEBUG - Discover 13 nodes
00:08:05.056 2014-10-10 22:08:07,080 DEBUG - Discover 14 nodes
00:08:20.456 2014-10-10 22:08:22,480 DEBUG - Discover 15 nodes
00:08:46.131 2014-10-10 22:08:48,154 DEBUG - Discover 16 nodes
00:09:06.691 2014-10-10 22:09:08,715 DEBUG - Discover 17 nodes
00:09:11.844 2014-10-10 22:09:13,868 DEBUG - Discover 19 nodes
00:10:08.528 2014-10-10 22:10:10,552 DEBUG - Discover 20 nodes