few nodes couldn't download kickstart file during provisioning

[Leontii Istomin]

[root@fuel ~]# fuel --fuel-version
DEPRECATION WARNING: file /etc/fuel/client/config.yaml is found and will be used as a source for settings. However, it deprecated and will not be used by default in the ongoing version of python-fuelclient.
api: '1.0'
astute_sha: 1be5b9b827f512d740fe907c7ff72486d4030938
auth_required: true
build_id: 2015-03-02_14-00-04
build_number: '154'
feature_groups:
- mirantis
fuellib_sha: b17e3810dbca407fca2a231c26f553a46e166343
fuelmain_sha: baf24424a4e056c6753913de5f8c94851903f718
nailgun_sha: f034fbb4b68be963e4dc5b5d680061b54efbf605
ostf_sha: 103d6cf6badd57b791cfaf4310ec8bd81c7a8a46
production: docker
python-fuelclient_sha: 3ebfa9c14a192d0298ff787526bf990055a23694
release: '6.1'
release_versions:
  2014.2-6.1:
    VERSION:
      api: '1.0'
      astute_sha: 1be5b9b827f512d740fe907c7ff72486d4030938
      build_id: 2015-03-02_14-00-04
      build_number: '154'
      feature_groups:
      - mirantis
      fuellib_sha: b17e3810dbca407fca2a231c26f553a46e166343
      fuelmain_sha: baf24424a4e056c6753913de5f8c94851903f718
      nailgun_sha: f034fbb4b68be963e4dc5b5d680061b54efbf605
      ostf_sha: 103d6cf6badd57b791cfaf4310ec8bd81c7a8a46
      production: docker
      python-fuelclient_sha: 3ebfa9c14a192d0298ff787526bf990055a23694
      release: '6.1'

Baremetal,Ubuntu, HA, Neutron-vlan,Ceph-all, Debug, 6.1_154
Controllers:3 Computes:47

Deployment was failed during provisioning step. two from 50 nodes couldn't download kickstart files (screenshots are attached)
node-51:00:25:90:e9:c4:66
node-58:00:25:90:e9:c5:50
DG is coming

[Dmitry Pyzhov (dpyzhov)]

Does this bug relates to lack of resources on master node?